From ec93cf628d1c0d132c6e46c43202f234acd0c067 Mon Sep 17 00:00:00 2001
From: schnetter <schnetter@20f44201-0f4f-0410-9130-e5fc2714a787>
Date: Sun, 14 Feb 2010 18:28:16 +0000
Subject: Determine the symmetry boundary width from the registered boundary
 width in CoordBase, not from the number of ghost zones.

Abort if there are more than one components per MPI process; TAT/Slab
cannot handle this.

Begin to add support for CarpetSlab instead of TAT/Slab.

Remove cvs $Header$ comments.


git-svn-id: http://svn.cactuscode.org/arrangements/CactusNumerical/RotatingSymmetry180/trunk@48 20f44201-0f4f-0410-9130-e5fc2714a787
---
 src/interpolate.c         |  2 --
 src/make.code.defn        |  1 -
 src/registersymmetry.c    | 17 ++++++++--
 src/rotatingsymmetry180.c | 79 +++++++++++++++++++++++++++++++++++++++--------
 src/rotatingsymmetry180.h |  2 --
 5 files changed, 80 insertions(+), 21 deletions(-)

(limited to 'src')

diff --git a/src/interpolate.c b/src/interpolate.c
index 717d352..ecf7477 100644
--- a/src/interpolate.c
+++ b/src/interpolate.c
@@ -1,5 +1,3 @@
-/* $Header$ */
-
 #include <assert.h>
 #include <math.h>
 #include <stdio.h>
diff --git a/src/make.code.defn b/src/make.code.defn
index 03f55f4..bdd2ba6 100644
--- a/src/make.code.defn
+++ b/src/make.code.defn
@@ -1,5 +1,4 @@
 # Main make.code.defn file for thorn RotatingSymmetry180
-# $Header$
 
 # Source files in this directory
 SRCS = interpolate.c rotatingsymmetry180.c registersymmetry.c
diff --git a/src/registersymmetry.c b/src/registersymmetry.c
index b326181..6ce17dc 100644
--- a/src/registersymmetry.c
+++ b/src/registersymmetry.c
@@ -1,5 +1,3 @@
-/* $Header$ */
-
 #include "cctk.h"
 #include "cctk_Arguments.h"
 #include "cctk_Parameters.h"
@@ -13,19 +11,32 @@ void Rot180_RegisterSymmetry (CCTK_ARGUMENTS)
   DECLARE_CCTK_ARGUMENTS;
   DECLARE_CCTK_PARAMETERS;
   
+  CCTK_INT nboundaryzones[6];
+  CCTK_INT is_internal[6];
+  CCTK_INT is_staggered[6];
+  CCTK_INT shiftout[6];
+  
   int f;
   CCTK_INT handle;
   CCTK_INT faces[6];
   CCTK_INT width[6];
   CCTK_INT ierr;
   
+  /* Get the boundary specification */
+  ierr = GetBoundarySpecification
+    (6, nboundaryzones, is_internal, is_staggered, shiftout);
+  if (ierr < 0)
+  {
+    CCTK_WARN (0, "Could not get the boundary specification");
+  }
+  
   for (f=0; f<6; ++f) {
     faces[f] = 0;
     width[f] = 0;
   }
   
   faces[0] = 1;
-  width[0] = cctk_nghostzones[0];
+  width[0] = nboundaryzones[0];
   
   handle = SymmetryRegister ("rotating_symmetry_180");
   if (handle < 0) {
diff --git a/src/rotatingsymmetry180.c b/src/rotatingsymmetry180.c
index 62b859d..ccafa3c 100644
--- a/src/rotatingsymmetry180.c
+++ b/src/rotatingsymmetry180.c
@@ -1,5 +1,3 @@
-/* $Header$ */
-
 #include <assert.h>
 #include <math.h>
 #include <stdlib.h>
@@ -45,7 +43,6 @@ int BndRot180VI (cGH const * restrict const cctkGH,
   int offset[3];                /* offset 0..1 due to avoid_origin */
   
   struct xferinfo * restrict xferinfo;
-  int options;
   
   int var;
   
@@ -54,6 +51,7 @@ int BndRot180VI (cGH const * restrict const cctkGH,
   int otherdir;                 /* the other direction of the rotation */
   int q;
   int d;
+  int icnt;
   int ierr;
   
   /* Check arguments */
@@ -451,16 +449,71 @@ int BndRot180VI (cGH const * restrict const cctkGH,
     xferinfo[     dir].flip = 1;
     xferinfo[otherdir].flip = 1;
     
-    options = Util_TableCreateFromString ("useghosts=1");
-    assert (options>=0);
-    
-    ierr = Slab_MultiTransfer
-      (cctkGH, group.dim, xferinfo, options,
-       nvars, vartypes, varptrs, vartypes, varptrs);
-    assert (!ierr);
-    
-    ierr = Util_TableDestroy (options);
-    assert (!ierr);
+    if (CCTK_EQUALS (hyperslabber, "TAT/Slab")) {
+      
+      if (CCTK_IsFunctionAliased("GetLocalComponents")) {
+        int const num_local_components = GetLocalComponents(cctkGH);
+        if (num_local_components > 1) {
+          CCTK_WARN (CCTK_WARN_ABORT,
+                     "TAT/Slab can only be used if there is a single local component per MPI process");
+        }
+      }
+      
+      int options;
+      options = Util_TableCreateFromString ("useghosts=1");
+      assert (options>=0);
+      
+      ierr = Slab_MultiTransfer
+        (cctkGH, group.dim, xferinfo, options,
+         nvars, vartypes, varptrs, vartypes, varptrs);
+      assert (!ierr);
+      
+      ierr = Util_TableDestroy (options);
+      assert (!ierr);
+      
+    } else if (CCTK_EQUALS (hyperslabber, "GetHyperslab")) {
+      
+      CCTK_INT const direction[3*3] = {1, 0, 0,   0, 1, 0,   0, 0, 1};
+      CCTK_INT const origin[3] =
+        {xferinfo[0].src.off, xferinfo[1].src.off, xferinfo[2].src.off};
+      CCTK_INT const extent[3] =
+        {xferinfo[0].src.len, xferinfo[1].src.len, xferinfo[2].src.len};
+      CCTK_INT const downsample[3] =
+        {xferinfo[0].src.str, xferinfo[1].src.str, xferinfo[2].src.str};
+      int mapping;
+      CCTK_INT hsize[3], total_hsize;
+      CCTK_POINTER hdata[nvars];
+      
+      assert (nvars > 0);
+      mapping = Hyperslab_GlobalMappingByIndex
+        (cctkGH, vis[0], 3, direction, origin, extent, downsample,
+         -1, NULL, &hsize);
+      assert (mapping>=0);
+      
+      total_hsize = hsize[0] * hsize[1] * hsize[2];
+      assert (total_hsize >= 0);
+      for (var=0; var<nvars; ++var) {
+        hdata[var] = malloc(total_hsize * CCTK_VarTypeSize(CCTK_VarTypeI(var)));
+        assert (total_hsize==0 || hdata[var]);
+      }
+      
+      icnt = Hyperslab_GetList
+        (cctkGH, mapping, nvars, NULL, vis, NULL, NULL, hdata, NULL);
+      assert (icnt == nvars);
+      
+      // copy hyperslabs into grid functions
+      assert (0);
+      
+      for (var=0; var<nvars; ++var) {
+        free (hdata[var]);
+      }
+      
+      ierr = Hyperslab_FreeMapping (mapping);
+      assert (!ierr);
+      
+    } else {
+      CCTK_WARN (CCTK_WARN_ABORT, "internal error");
+    }
     
     if (poison_boundaries) {
       /* check destination grid points for poison */
diff --git a/src/rotatingsymmetry180.h b/src/rotatingsymmetry180.h
index e33770a..d006812 100644
--- a/src/rotatingsymmetry180.h
+++ b/src/rotatingsymmetry180.h
@@ -1,5 +1,3 @@
-/* $Header$ */
-
 #ifndef ROTATINGSYMMETRY180_H
 #define ROTATINGSYMMETRY180_H
 
-- 
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