Regenerate code (Kranc commit 9b459add6db98620df418ef12d61c932cec9bf05)

Fix compatibility with existing multipatch parameter files by not requiring Jacobian inverse and determinant parameters.

36 files changed, 72 insertions, 792 deletions

diff --git a/ML_BSSN/src/ML_BSSN_Advect.cc b/ML_BSSN/src/ML_BSSN_Advect.cc
index adabbda..0f8a946 100644
--- a/ML_BSSN/src/ML_BSSN_Advect.cc
+++ b/ML_BSSN/src/ML_BSSN_Advect.cc
@@ -187,9 +187,9 @@ static void ML_BSSN_Advect_Body(const cGH* restrict const cctkGH, const int dir,
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -206,26 +206,6 @@ static void ML_BSSN_Advect_Body(const cGH* restrict const cctkGH, const int dir,
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_Dissipation.cc b/ML_BSSN/src/ML_BSSN_Dissipation.cc
index 7ad6379..2f06644 100644
--- a/ML_BSSN/src/ML_BSSN_Dissipation.cc
+++ b/ML_BSSN/src/ML_BSSN_Dissipation.cc
@@ -187,9 +187,9 @@ static void ML_BSSN_Dissipation_Body(const cGH* restrict const cctkGH, const int
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -206,26 +206,6 @@ static void ML_BSSN_Dissipation_Body(const cGH* restrict const cctkGH, const int
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_InitGamma.cc b/ML_BSSN/src/ML_BSSN_InitGamma.cc
index 73da7da..dcfe0c7 100644
--- a/ML_BSSN/src/ML_BSSN_InitGamma.cc
+++ b/ML_BSSN/src/ML_BSSN_InitGamma.cc
@@ -149,9 +149,9 @@ static void ML_BSSN_InitGamma_Body(const cGH* restrict const cctkGH, const int d
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -168,26 +168,6 @@ static void ML_BSSN_InitGamma_Body(const cGH* restrict const cctkGH, const int d
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_InitRHS.cc b/ML_BSSN/src/ML_BSSN_InitRHS.cc
index 0689453..caa4531 100644
--- a/ML_BSSN/src/ML_BSSN_InitRHS.cc
+++ b/ML_BSSN/src/ML_BSSN_InitRHS.cc
@@ -149,9 +149,9 @@ static void ML_BSSN_InitRHS_Body(const cGH* restrict const cctkGH, const int dir
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -168,26 +168,6 @@ static void ML_BSSN_InitRHS_Body(const cGH* restrict const cctkGH, const int dir
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_Minkowski.cc b/ML_BSSN/src/ML_BSSN_Minkowski.cc
index 25afad8..5ee070a 100644
--- a/ML_BSSN/src/ML_BSSN_Minkowski.cc
+++ b/ML_BSSN/src/ML_BSSN_Minkowski.cc
@@ -149,9 +149,9 @@ static void ML_BSSN_Minkowski_Body(const cGH* restrict const cctkGH, const int d
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -168,26 +168,6 @@ static void ML_BSSN_Minkowski_Body(const cGH* restrict const cctkGH, const int d
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_RHS1.cc b/ML_BSSN/src/ML_BSSN_RHS1.cc
index 34bbaec..4609652 100644
--- a/ML_BSSN/src/ML_BSSN_RHS1.cc
+++ b/ML_BSSN/src/ML_BSSN_RHS1.cc
@@ -184,9 +184,9 @@ static void ML_BSSN_RHS1_Body(const cGH* restrict const cctkGH, const int dir, c
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -203,26 +203,6 @@ static void ML_BSSN_RHS1_Body(const cGH* restrict const cctkGH, const int dir, c
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_RHS2.cc b/ML_BSSN/src/ML_BSSN_RHS2.cc
index c7e803c..08352bd 100644
--- a/ML_BSSN/src/ML_BSSN_RHS2.cc
+++ b/ML_BSSN/src/ML_BSSN_RHS2.cc
@@ -163,9 +163,9 @@ static void ML_BSSN_RHS2_Body(const cGH* restrict const cctkGH, const int dir, c
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -182,26 +182,6 @@ static void ML_BSSN_RHS2_Body(const cGH* restrict const cctkGH, const int dir, c
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_RHSStaticBoundary.cc b/ML_BSSN/src/ML_BSSN_RHSStaticBoundary.cc
index 56e7abd..6f16ec9 100644
--- a/ML_BSSN/src/ML_BSSN_RHSStaticBoundary.cc
+++ b/ML_BSSN/src/ML_BSSN_RHSStaticBoundary.cc
@@ -187,9 +187,9 @@ static void ML_BSSN_RHSStaticBoundary_Body(const cGH* restrict const cctkGH, con
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -206,26 +206,6 @@ static void ML_BSSN_RHSStaticBoundary_Body(const cGH* restrict const cctkGH, con
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_boundary.cc b/ML_BSSN/src/ML_BSSN_boundary.cc
index b922f60..79558a3 100644
--- a/ML_BSSN/src/ML_BSSN_boundary.cc
+++ b/ML_BSSN/src/ML_BSSN_boundary.cc
@@ -187,9 +187,9 @@ static void ML_BSSN_boundary_Body(const cGH* restrict const cctkGH, const int di
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -206,26 +206,6 @@ static void ML_BSSN_boundary_Body(const cGH* restrict const cctkGH, const int di
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_constraints1.cc b/ML_BSSN/src/ML_BSSN_constraints1.cc
index 6a87210..92d8583 100644
--- a/ML_BSSN/src/ML_BSSN_constraints1.cc
+++ b/ML_BSSN/src/ML_BSSN_constraints1.cc
@@ -163,9 +163,9 @@ static void ML_BSSN_constraints1_Body(const cGH* restrict const cctkGH, const in
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -182,26 +182,6 @@ static void ML_BSSN_constraints1_Body(const cGH* restrict const cctkGH, const in
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_constraints2.cc b/ML_BSSN/src/ML_BSSN_constraints2.cc
index c548510..f239483 100644
--- a/ML_BSSN/src/ML_BSSN_constraints2.cc
+++ b/ML_BSSN/src/ML_BSSN_constraints2.cc
@@ -172,9 +172,9 @@ static void ML_BSSN_constraints2_Body(const cGH* restrict const cctkGH, const in
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -191,26 +191,6 @@ static void ML_BSSN_constraints2_Body(const cGH* restrict const cctkGH, const in
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_convertFromADMBase.cc b/ML_BSSN/src/ML_BSSN_convertFromADMBase.cc
index 6762f0e..9537197 100644
--- a/ML_BSSN/src/ML_BSSN_convertFromADMBase.cc
+++ b/ML_BSSN/src/ML_BSSN_convertFromADMBase.cc
@@ -149,9 +149,9 @@ static void ML_BSSN_convertFromADMBase_Body(const cGH* restrict const cctkGH, co
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -168,26 +168,6 @@ static void ML_BSSN_convertFromADMBase_Body(const cGH* restrict const cctkGH, co
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_convertFromADMBaseGamma.cc b/ML_BSSN/src/ML_BSSN_convertFromADMBaseGamma.cc
index 2001b38..7924f55 100644
--- a/ML_BSSN/src/ML_BSSN_convertFromADMBaseGamma.cc
+++ b/ML_BSSN/src/ML_BSSN_convertFromADMBaseGamma.cc
@@ -169,9 +169,9 @@ static void ML_BSSN_convertFromADMBaseGamma_Body(const cGH* restrict const cctkG
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -188,26 +188,6 @@ static void ML_BSSN_convertFromADMBaseGamma_Body(const cGH* restrict const cctkG
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_convertToADMBase.cc b/ML_BSSN/src/ML_BSSN_convertToADMBase.cc
index 5bd6467..d323b17 100644
--- a/ML_BSSN/src/ML_BSSN_convertToADMBase.cc
+++ b/ML_BSSN/src/ML_BSSN_convertToADMBase.cc
@@ -149,9 +149,9 @@ static void ML_BSSN_convertToADMBase_Body(const cGH* restrict const cctkGH, cons
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -168,26 +168,6 @@ static void ML_BSSN_convertToADMBase_Body(const cGH* restrict const cctkGH, cons
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_convertToADMBaseDtLapseShift.cc b/ML_BSSN/src/ML_BSSN_convertToADMBaseDtLapseShift.cc
index a0b0cb3..b51abd1 100644
--- a/ML_BSSN/src/ML_BSSN_convertToADMBaseDtLapseShift.cc
+++ b/ML_BSSN/src/ML_BSSN_convertToADMBaseDtLapseShift.cc
@@ -166,9 +166,9 @@ static void ML_BSSN_convertToADMBaseDtLapseShift_Body(const cGH* restrict const
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -185,26 +185,6 @@ static void ML_BSSN_convertToADMBaseDtLapseShift_Body(const cGH* restrict const
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_convertToADMBaseDtLapseShiftBoundary.cc b/ML_BSSN/src/ML_BSSN_convertToADMBaseDtLapseShiftBoundary.cc
index d6a1a29..57469de 100644
--- a/ML_BSSN/src/ML_BSSN_convertToADMBaseDtLapseShiftBoundary.cc
+++ b/ML_BSSN/src/ML_BSSN_convertToADMBaseDtLapseShiftBoundary.cc
@@ -166,9 +166,9 @@ static void ML_BSSN_convertToADMBaseDtLapseShiftBoundary_Body(const cGH* restric
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -185,26 +185,6 @@ static void ML_BSSN_convertToADMBaseDtLapseShiftBoundary_Body(const cGH* restric
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_convertToADMBaseFakeDtLapseShift.cc b/ML_BSSN/src/ML_BSSN_convertToADMBaseFakeDtLapseShift.cc
index e69ee8d..f8b7487 100644
--- a/ML_BSSN/src/ML_BSSN_convertToADMBaseFakeDtLapseShift.cc
+++ b/ML_BSSN/src/ML_BSSN_convertToADMBaseFakeDtLapseShift.cc
@@ -149,9 +149,9 @@ static void ML_BSSN_convertToADMBaseFakeDtLapseShift_Body(const cGH* restrict co
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -168,26 +168,6 @@ static void ML_BSSN_convertToADMBaseFakeDtLapseShift_Body(const cGH* restrict co
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_BSSN/src/ML_BSSN_enforce.cc b/ML_BSSN/src/ML_BSSN_enforce.cc
index afd1a51..f1483bf 100644
--- a/ML_BSSN/src/ML_BSSN_enforce.cc
+++ b/ML_BSSN/src/ML_BSSN_enforce.cc
@@ -149,9 +149,9 @@ static void ML_BSSN_enforce_Body(const cGH* restrict const cctkGH, const int dir
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -168,26 +168,6 @@ static void ML_BSSN_enforce_Body(const cGH* restrict const cctkGH, const int dir
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_Advect.cc b/ML_CCZ4/src/ML_CCZ4_Advect.cc
index 80e864e..824dcc7 100644
--- a/ML_CCZ4/src/ML_CCZ4_Advect.cc
+++ b/ML_CCZ4/src/ML_CCZ4_Advect.cc
@@ -190,9 +190,9 @@ static void ML_CCZ4_Advect_Body(const cGH* restrict const cctkGH, const int dir,
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -209,26 +209,6 @@ static void ML_CCZ4_Advect_Body(const cGH* restrict const cctkGH, const int dir,
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_Dissipation.cc b/ML_CCZ4/src/ML_CCZ4_Dissipation.cc
index 0946341..673b790 100644
--- a/ML_CCZ4/src/ML_CCZ4_Dissipation.cc
+++ b/ML_CCZ4/src/ML_CCZ4_Dissipation.cc
@@ -190,9 +190,9 @@ static void ML_CCZ4_Dissipation_Body(const cGH* restrict const cctkGH, const int
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -209,26 +209,6 @@ static void ML_CCZ4_Dissipation_Body(const cGH* restrict const cctkGH, const int
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_InitGamma.cc b/ML_CCZ4/src/ML_CCZ4_InitGamma.cc
index e16fb52..4bf188a 100644
--- a/ML_CCZ4/src/ML_CCZ4_InitGamma.cc
+++ b/ML_CCZ4/src/ML_CCZ4_InitGamma.cc
@@ -149,9 +149,9 @@ static void ML_CCZ4_InitGamma_Body(const cGH* restrict const cctkGH, const int d
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -168,26 +168,6 @@ static void ML_CCZ4_InitGamma_Body(const cGH* restrict const cctkGH, const int d
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_InitRHS.cc b/ML_CCZ4/src/ML_CCZ4_InitRHS.cc
index 0c7a561..60cb137 100644
--- a/ML_CCZ4/src/ML_CCZ4_InitRHS.cc
+++ b/ML_CCZ4/src/ML_CCZ4_InitRHS.cc
@@ -149,9 +149,9 @@ static void ML_CCZ4_InitRHS_Body(const cGH* restrict const cctkGH, const int dir
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -168,26 +168,6 @@ static void ML_CCZ4_InitRHS_Body(const cGH* restrict const cctkGH, const int dir
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_Minkowski.cc b/ML_CCZ4/src/ML_CCZ4_Minkowski.cc
index 4b8be71..4a86617 100644
--- a/ML_CCZ4/src/ML_CCZ4_Minkowski.cc
+++ b/ML_CCZ4/src/ML_CCZ4_Minkowski.cc
@@ -149,9 +149,9 @@ static void ML_CCZ4_Minkowski_Body(const cGH* restrict const cctkGH, const int d
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -168,26 +168,6 @@ static void ML_CCZ4_Minkowski_Body(const cGH* restrict const cctkGH, const int d
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_RHS1.cc b/ML_CCZ4/src/ML_CCZ4_RHS1.cc
index 85512c5..54bbdfc 100644
--- a/ML_CCZ4/src/ML_CCZ4_RHS1.cc
+++ b/ML_CCZ4/src/ML_CCZ4_RHS1.cc
@@ -187,9 +187,9 @@ static void ML_CCZ4_RHS1_Body(const cGH* restrict const cctkGH, const int dir, c
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -206,26 +206,6 @@ static void ML_CCZ4_RHS1_Body(const cGH* restrict const cctkGH, const int dir, c
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_RHS2.cc b/ML_CCZ4/src/ML_CCZ4_RHS2.cc
index d7be509..c3862c1 100644
--- a/ML_CCZ4/src/ML_CCZ4_RHS2.cc
+++ b/ML_CCZ4/src/ML_CCZ4_RHS2.cc
@@ -163,9 +163,9 @@ static void ML_CCZ4_RHS2_Body(const cGH* restrict const cctkGH, const int dir, c
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -182,26 +182,6 @@ static void ML_CCZ4_RHS2_Body(const cGH* restrict const cctkGH, const int dir, c
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_RHSStaticBoundary.cc b/ML_CCZ4/src/ML_CCZ4_RHSStaticBoundary.cc
index 060bdb2..58bb82b 100644
--- a/ML_CCZ4/src/ML_CCZ4_RHSStaticBoundary.cc
+++ b/ML_CCZ4/src/ML_CCZ4_RHSStaticBoundary.cc
@@ -190,9 +190,9 @@ static void ML_CCZ4_RHSStaticBoundary_Body(const cGH* restrict const cctkGH, con
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -209,26 +209,6 @@ static void ML_CCZ4_RHSStaticBoundary_Body(const cGH* restrict const cctkGH, con
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_boundary.cc b/ML_CCZ4/src/ML_CCZ4_boundary.cc
index 6f07c84..a9e63c4 100644
--- a/ML_CCZ4/src/ML_CCZ4_boundary.cc
+++ b/ML_CCZ4/src/ML_CCZ4_boundary.cc
@@ -190,9 +190,9 @@ static void ML_CCZ4_boundary_Body(const cGH* restrict const cctkGH, const int di
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -209,26 +209,6 @@ static void ML_CCZ4_boundary_Body(const cGH* restrict const cctkGH, const int di
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_constraints1.cc b/ML_CCZ4/src/ML_CCZ4_constraints1.cc
index b0dfb4b..99a14e7 100644
--- a/ML_CCZ4/src/ML_CCZ4_constraints1.cc
+++ b/ML_CCZ4/src/ML_CCZ4_constraints1.cc
@@ -163,9 +163,9 @@ static void ML_CCZ4_constraints1_Body(const cGH* restrict const cctkGH, const in
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -182,26 +182,6 @@ static void ML_CCZ4_constraints1_Body(const cGH* restrict const cctkGH, const in
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_constraints2.cc b/ML_CCZ4/src/ML_CCZ4_constraints2.cc
index b94688b..feb1d76 100644
--- a/ML_CCZ4/src/ML_CCZ4_constraints2.cc
+++ b/ML_CCZ4/src/ML_CCZ4_constraints2.cc
@@ -172,9 +172,9 @@ static void ML_CCZ4_constraints2_Body(const cGH* restrict const cctkGH, const in
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -191,26 +191,6 @@ static void ML_CCZ4_constraints2_Body(const cGH* restrict const cctkGH, const in
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_convertFromADMBase.cc b/ML_CCZ4/src/ML_CCZ4_convertFromADMBase.cc
index 19bf9b3..7133410 100644
--- a/ML_CCZ4/src/ML_CCZ4_convertFromADMBase.cc
+++ b/ML_CCZ4/src/ML_CCZ4_convertFromADMBase.cc
@@ -149,9 +149,9 @@ static void ML_CCZ4_convertFromADMBase_Body(const cGH* restrict const cctkGH, co
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -168,26 +168,6 @@ static void ML_CCZ4_convertFromADMBase_Body(const cGH* restrict const cctkGH, co
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_convertFromADMBaseGamma.cc b/ML_CCZ4/src/ML_CCZ4_convertFromADMBaseGamma.cc
index 5c8512a..09a5eeb 100644
--- a/ML_CCZ4/src/ML_CCZ4_convertFromADMBaseGamma.cc
+++ b/ML_CCZ4/src/ML_CCZ4_convertFromADMBaseGamma.cc
@@ -169,9 +169,9 @@ static void ML_CCZ4_convertFromADMBaseGamma_Body(const cGH* restrict const cctkG
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -188,26 +188,6 @@ static void ML_CCZ4_convertFromADMBaseGamma_Body(const cGH* restrict const cctkG
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_convertToADMBase.cc b/ML_CCZ4/src/ML_CCZ4_convertToADMBase.cc
index 690eea4..3fbe702 100644
--- a/ML_CCZ4/src/ML_CCZ4_convertToADMBase.cc
+++ b/ML_CCZ4/src/ML_CCZ4_convertToADMBase.cc
@@ -149,9 +149,9 @@ static void ML_CCZ4_convertToADMBase_Body(const cGH* restrict const cctkGH, cons
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -168,26 +168,6 @@ static void ML_CCZ4_convertToADMBase_Body(const cGH* restrict const cctkGH, cons
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_convertToADMBaseDtLapseShift.cc b/ML_CCZ4/src/ML_CCZ4_convertToADMBaseDtLapseShift.cc
index bef552a..4bdbdc9 100644
--- a/ML_CCZ4/src/ML_CCZ4_convertToADMBaseDtLapseShift.cc
+++ b/ML_CCZ4/src/ML_CCZ4_convertToADMBaseDtLapseShift.cc
@@ -166,9 +166,9 @@ static void ML_CCZ4_convertToADMBaseDtLapseShift_Body(const cGH* restrict const
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -185,26 +185,6 @@ static void ML_CCZ4_convertToADMBaseDtLapseShift_Body(const cGH* restrict const
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_convertToADMBaseDtLapseShiftBoundary.cc b/ML_CCZ4/src/ML_CCZ4_convertToADMBaseDtLapseShiftBoundary.cc
index 516a0d9..d36ef7f 100644
--- a/ML_CCZ4/src/ML_CCZ4_convertToADMBaseDtLapseShiftBoundary.cc
+++ b/ML_CCZ4/src/ML_CCZ4_convertToADMBaseDtLapseShiftBoundary.cc
@@ -166,9 +166,9 @@ static void ML_CCZ4_convertToADMBaseDtLapseShiftBoundary_Body(const cGH* restric
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -185,26 +185,6 @@ static void ML_CCZ4_convertToADMBaseDtLapseShiftBoundary_Body(const cGH* restric
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_convertToADMBaseFakeDtLapseShift.cc b/ML_CCZ4/src/ML_CCZ4_convertToADMBaseFakeDtLapseShift.cc
index 92c72db..6b4c608 100644
--- a/ML_CCZ4/src/ML_CCZ4_convertToADMBaseFakeDtLapseShift.cc
+++ b/ML_CCZ4/src/ML_CCZ4_convertToADMBaseFakeDtLapseShift.cc
@@ -149,9 +149,9 @@ static void ML_CCZ4_convertToADMBaseFakeDtLapseShift_Body(const cGH* restrict co
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -168,26 +168,6 @@ static void ML_CCZ4_convertToADMBaseFakeDtLapseShift_Body(const cGH* restrict co
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);
diff --git a/ML_CCZ4/src/ML_CCZ4_enforce.cc b/ML_CCZ4/src/ML_CCZ4_enforce.cc
index af57d73..5290d60 100644
--- a/ML_CCZ4/src/ML_CCZ4_enforce.cc
+++ b/ML_CCZ4/src/ML_CCZ4_enforce.cc
@@ -149,9 +149,9 @@ static void ML_CCZ4_enforce_Body(const cGH* restrict const cctkGH, const int dir
                         && strlen(jacobian_group) > 0;
   const bool use_jacobian = assume_use_jacobian>=0 ? assume_use_jacobian : use_jacobian1;
   const bool usejacobian CCTK_ATTRIBUTE_UNUSED = use_jacobian;
-  if (use_jacobian && (strlen(jacobian_determinant_group) == 0 || strlen(jacobian_inverse_group) == 0 || strlen(jacobian_derivative_group) == 0))
+  if (use_jacobian && (strlen(jacobian_derivative_group) == 0))
   {
-    CCTK_WARN(1, "GenericFD::jacobian_group, GenericFD::jacobian_determinant_group, GenericFD::jacobian_inverse_group, and GenericFD::jacobian_derivative_group must all be set to valid group names");
+    CCTK_WARN(1, "GenericFD::jacobian_group and GenericFD::jacobian_derivative_group must both be set to valid group names");
   }
   
   const CCTK_REAL* restrict jacobian_ptrs[9];
@@ -168,26 +168,6 @@ static void ML_CCZ4_enforce_Body(const cGH* restrict const cctkGH, const int dir
   const CCTK_REAL* restrict const J32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[7] : 0;
   const CCTK_REAL* restrict const J33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[8] : 0;
   
-  const CCTK_REAL* restrict jacobian_determinant_ptrs[1] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_determinant_group,
-                                                1, jacobian_determinant_ptrs);
-  
-  const CCTK_REAL* restrict const detJ CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_ptrs[0] : 0;
-  
-  const CCTK_REAL* restrict jacobian_inverse_ptrs[9] CCTK_ATTRIBUTE_UNUSED;
-  if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_inverse_group,
-                                                9, jacobian_inverse_ptrs);
-  
-  const CCTK_REAL* restrict const iJ11 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[0] : 0;
-  const CCTK_REAL* restrict const iJ12 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[1] : 0;
-  const CCTK_REAL* restrict const iJ13 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[2] : 0;
-  const CCTK_REAL* restrict const iJ21 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[3] : 0;
-  const CCTK_REAL* restrict const iJ22 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[4] : 0;
-  const CCTK_REAL* restrict const iJ23 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[5] : 0;
-  const CCTK_REAL* restrict const iJ31 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[6] : 0;
-  const CCTK_REAL* restrict const iJ32 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[7] : 0;
-  const CCTK_REAL* restrict const iJ33 CCTK_ATTRIBUTE_UNUSED = use_jacobian ? jacobian_inverse_ptrs[8] : 0;
-  
   const CCTK_REAL* restrict jacobian_derivative_ptrs[18] CCTK_ATTRIBUTE_UNUSED;
   if (use_jacobian) GenericFD_GroupDataPointers(cctkGH, jacobian_derivative_group,
                                                 18, jacobian_derivative_ptrs);