Define MPI_INT when compiling without MPI.

git-svn-id: http://svn.cactuscode.org/arrangements/CactusNumerical/Slab/trunk@35 2e825fa2-fb71-486d-8b7f-a5ff3f0f6cb8

1 files changed, 20 insertions, 0 deletions

diff --git a/src/slab.c b/src/slab.c
index e1b4ada..f2bc3bd 100644
--- a/src/slab.c
+++ b/src/slab.c
@@ -192,6 +192,8 @@ typedef enum {
   CACTUS_MPI_COMPLEX32 = CCTK_VARIABLE_COMPLEX32
 } MPI_Datatype;
 
+static MPI_Datatype MPI_INT;
+
 typedef enum { MPI_MIN, MPI_MAX } MPI_Op;
 
 static int
@@ -330,6 +332,24 @@ Slab_InitMPIDatatypes (void)
   MPI_Type_commit (&CACTUS_MPI_COMPLEX32);
 #  endif
 #endif
+  
+#ifndef CCTK_MPI
+  switch (sizeof(int)) {
+#ifdef CCTK_INT1
+  case sizeof(CCTK_INT1): MPI_INT = CCTK_VARIABLE_INT1; break;
+#endif
+#ifdef CCTK_INT2
+  case sizeof(CCTK_INT2): MPI_INT = CCTK_VARIABLE_INT2; break;
+#endif
+#ifdef CCTK_INT4
+  case sizeof(CCTK_INT4): MPI_INT = CCTK_VARIABLE_INT4; break;
+#endif
+#ifdef CCTK_INT8
+  case sizeof(CCTK_INT8): MPI_INT = CCTK_VARIABLE_INT8; break;
+#endif
+  default: assert(0);
+  }
+#endif
 }