From ece47455bad491c45b3136362e9239f505de23b9 Mon Sep 17 00:00:00 2001
From: eschnett <>
Date: Thu, 1 Mar 2001 12:40:00 +0000
Subject: Initial revision

darcs-hash:20010301124010-f6438-fca5ed1e25f84efd816aa0d13fc23b58add7195d.gz
---
 Carpet/CarpetSlab/src/carpetslab.cc  | 455 +++++++++++++++++++++++++++++++++++
 Carpet/CarpetSlab/src/carpetslab.hh  |  36 +++
 Carpet/CarpetSlab/src/make.code.defn |   4 +-
 3 files changed, 493 insertions(+), 2 deletions(-)
 create mode 100644 Carpet/CarpetSlab/src/carpetslab.cc
 create mode 100644 Carpet/CarpetSlab/src/carpetslab.hh

(limited to 'Carpet/CarpetSlab/src')

diff --git a/Carpet/CarpetSlab/src/carpetslab.cc b/Carpet/CarpetSlab/src/carpetslab.cc
new file mode 100644
index 000000000..e3b6548b5
--- /dev/null
+++ b/Carpet/CarpetSlab/src/carpetslab.cc
@@ -0,0 +1,455 @@
+// $Header: /home/eschnett/C/carpet/Carpet/Carpet/CarpetSlab/src/Attic/carpetslab.cc,v 1.1 2001/03/01 13:40:10 eschnett Exp $
+
+#include <cassert>
+#include <cstdlib>
+#include <cstring>
+
+#include <mpi.h>
+
+#include "cctk.h"
+
+#include "Carpet/CarpetLib/src/bbox.hh"
+#include "Carpet/CarpetLib/src/gdata.hh"
+#include "Carpet/CarpetLib/src/dh.hh"
+#include "Carpet/CarpetLib/src/ggf.hh"
+#include "Carpet/CarpetLib/src/gh.hh"
+#include "Carpet/CarpetLib/src/vect.hh"
+
+#include "Carpet/Carpet/src/carpet.hh"
+
+#include "carpetslab.hh"
+
+namespace Carpet {
+  
+  int Hyperslab_GetLocalHyperslab (cGH* cgh,
+				   int n,
+				   int tl,
+				   int hdim,
+				   const int origin [/*vdim*/],
+				   const int dir [/*vdim*/],
+				   const int len [/*hdim*/],
+				   const int downsample [/*hdim*/],
+				   void** hdata,
+				   int hsize [/*hdim*/],
+				   int ghsize [/*hdim*/],
+				   int hoffset [/*hdim*/])
+  {
+    // check current status
+    assert (mglevel>=0);
+    assert (reflevel>=0);
+    assert (component>=0);	// local := this component
+    
+    // check arguments
+    assert (n>=0 && n<CCTK_NumVars());
+    assert (tl>=0);
+    assert (hdim>0 && hdim<=dim);
+    // the following assertion is too strict (better allow arbitrary values)
+    {
+      const int group = CCTK_GroupIndexFromVarI(n);
+      assert (group>=0);
+      switch (CCTK_GroupTypeFromVarI(n)) {
+      case CCTK_SCALAR:
+	abort();
+      case CCTK_ARRAY: 
+	{
+	  assert (group<(int)arrdata.size());
+	  assert (arrdata[group].hh->is_local(reflevel, component));
+	  const bbox<int,dim> ext =
+	    arrdata[group].dd->boxes[reflevel][component][mglevel].exterior;
+	  for (int d=0; d<dim; ++d) {
+	    assert (origin[d] >= ext.lower()[d] / ext.stride()[d]
+		    && origin[d] <= ext.upper()[d] / ext.stride()[d]);
+	  }
+	}
+	break;
+      case CCTK_GF:
+	{
+	  assert (group<(int)gfdata.size());
+	  assert (hh->is_local(reflevel, component));
+	  const bbox<int,dim> ext =
+	    dd->boxes[reflevel][component][mglevel].exterior;
+	  for (int d=0; d<dim; ++d) {
+	    assert (origin[d] >= ext.lower()[d] / ext.stride()[d]
+		    && origin[d] <= ext.upper()[d] / ext.stride()[d]);
+	  }
+	}
+	break;
+      default:
+	abort();
+      }
+    }
+    // the following assertion is too strict (better allow arbitrary values)
+    for (int d=0; d<dim; ++d) assert (dir[d]==0 || dir[d]==1);
+    // the following assertion is too strict (better allow arbitrary values)
+    for (int d=0; d<hdim; ++d) assert (downsample[d]>0);
+    assert (hdata);
+    assert (hsize);
+    assert (ghsize);
+    assert (hoffset);
+    
+    // get variable info
+    const int group = CCTK_GroupIndexFromVarI(n);
+    assert (group>=0);
+    const int var = n - CCTK_FirstVarIndexI(group);
+    assert (var>=0);
+    
+    // get grid hierarchy data hierarchy and grid function
+    gh<dim>* myhh;
+    dh<dim>* mydd;
+    generic_gf<dim>* myff;
+    switch (CCTK_GroupTypeFromVarI(n)) {
+    case CCTK_SCALAR:
+      abort();
+    case CCTK_ARRAY:
+      assert (group < (int)arrdata.size());
+      myhh = arrdata[group].hh;
+      mydd = arrdata[group].dd;
+      assert (var < (int)arrdata[group].data.size());
+      myff = arrdata[group].data[var];
+      break;
+    case CCTK_GF:
+      myhh = hh;
+      mydd = dd;
+      assert (group < (int)gfdata.size());
+      assert (var < (int)gfdata[group].data.size());
+      myff = gfdata[group].data[var];
+      break;
+    default:
+      abort();
+    }
+    
+    // get data
+    const generic_data<dim>* mydata
+      = (*myff)(tl, reflevel, component, mglevel);
+    
+    // get local bounding box
+    assert (reflevel < (int)mydd->boxes.size());
+    assert (component < (int)mydd->boxes[reflevel].size());
+    assert (mglevel < (int)mydd->boxes[reflevel][component].size());
+    const bbox<int,dim> intbox
+      = mydd->boxes[reflevel][component][mglevel].interior;
+    
+    // get global bounding box
+    assert (reflevel < (int)myhh->extents.size());
+    assert (component < (int)myhh->extents[reflevel].size());
+    assert (mglevel < (int)myhh->extents[reflevel][component].size());
+    const bbox<int,dim> extbox = myhh->extents[reflevel][component][mglevel];
+    assert (extbox.aligned_with(intbox));
+    
+    // calculate more convenient representation of the direction
+    vect<int,dim> stride[hdim];
+    // the following switch statement is written according to the definition
+    // of "dir".  do not interchange the order of the case labels.
+    switch (hdim) {
+    case 1:
+      for (int d=0; d<dim; ++d) stride[0][d] = dir[d] * downsample[0];
+      break;
+    case dim:
+      for (int dd=0; dd<hdim; ++dd) {
+	for (int d=0; d<dim; ++d) stride[dd][d] = d==dd ? downsample[dd] : 0;
+      }
+      break;
+    case 2:
+      assert (dim==3);
+      if (dir[0]==0) {
+	assert (dir[1]!=0 && dir[2]!=0);
+	stride[0] = vect<int,dim>::dir(1);
+	stride[1] = vect<int,dim>::dir(2);
+      } else if (dir[1]==0) {
+	assert (dir[0]!=0 && dir[2]!=0);
+	stride[0] = vect<int,dim>::dir(0);
+	stride[1] = vect<int,dim>::dir(2);
+      } else if (dir[2]==0) {
+	assert (dir[0]!=0 && dir[1]!=0);
+	stride[0] = vect<int,dim>::dir(0);
+	stride[1] = vect<int,dim>::dir(1);
+      } else {
+	abort();
+      }
+      for (int dd=0; dd<hdim; ++dd) stride[dd] *= downsample[dd];
+      break;
+    default:
+      abort();
+    }
+    for (int dd=0; dd<hdim; ++dd) stride[dd] *= intbox.stride();
+    
+    // local lower bound
+    vect<int,dim> lbound;
+    for (int d=0; d<dim; ++d) lbound[d] = origin[d];
+    lbound *= intbox.stride();
+    lbound = max(lbound, intbox.lower());
+    
+    // local upper bound
+    vect<int,dim> ubound = lbound;
+    for (int dd=0; dd<hdim; ++dd) {
+      if (len[dd]<0) {
+	while (all(ubound < intbox.upper())) ubound += stride[dd];
+      } else {
+	ubound += stride[dd] * len[dd];
+      }
+      ubound = min(ubound, intbox.upper());
+    }
+    
+//     // local bounding box
+//     const bbox<int,dim> box(lbound, ubound, intbox.stride());
+    
+    // local size
+    int total_hsize = 1;
+    for (int dd=0; dd<hdim; ++dd) {
+      hsize[dd] = 0;
+      while (all(lbound + stride[dd] * hsize[dd] <= ubound)) ++hsize[dd];
+      total_hsize *= hsize[dd];
+    }
+    
+    // sanity check
+    {
+      vect<int,dim> tmp = lbound;
+      for (int dd=0; dd<hdim; ++dd) {
+	tmp += stride[dd] * hsize[dd];
+      }
+      assert (all(tmp == ubound));
+    }
+    
+    // global lower bound
+    vect<int,dim> glbound;
+    for (int d=0; d<dim; ++d) glbound[d] = origin[d];
+    glbound *= extbox.stride();
+    glbound = max(glbound, extbox.lower());
+    
+    // global upper bound
+    vect<int,dim> gubound = glbound;
+    for (int dd=0; dd<hdim; ++dd) {
+      if (len[dd]<0) {
+	while (all(gubound < extbox.upper())) gubound += stride[dd];
+      } else {
+	gubound += stride[dd] * len[dd];
+      }
+      gubound = min(gubound, extbox.upper());
+    }
+    
+    // global size
+    for (int dd=0; dd<hdim; ++dd) {
+      ghsize[dd] = 0;
+      while (all(glbound + stride[dd] * ghsize[dd] <= gubound)) ++ghsize[dd];
+    }
+    
+    // sanity check
+    {
+      vect<int,dim> tmp = glbound;
+      for (int dd=0; dd<hdim; ++dd) {
+	tmp += stride[dd] * ghsize[dd];
+      }
+      assert (all(tmp == gubound));
+    }
+    
+    // local to global offset
+    for (int dd=0; dd<hdim; ++dd) {
+      hoffset[dd] = 0;
+      while (all(glbound + stride[dd] * hoffset[dd] < lbound)) ++hoffset[dd];
+    }
+    
+    // sanity check
+    {
+      vect<int,dim> tmp = glbound;
+      for (int dd=0; dd<hdim; ++dd) {
+	tmp += stride[dd] * hoffset[dd];
+      }
+      assert (all(tmp == lbound));
+    }
+    
+    // bail out if this component is on another processor
+//     if (mydata->proc() != CCTK_MyProc(cgh)) {
+    if (! myhh->is_local(reflevel, component)) {
+      *hdata = 0;
+      for (int dd=0; dd<hdim; ++dd) {
+	hsize[dd] = 0;
+// 	ghsize[dd] = 0;
+	hoffset[dd] = 0;
+      }
+      return -1;
+    }
+    
+    // allocate the memory
+    *hdata = malloc(total_hsize * CCTK_VarTypeSize(CCTK_VarTypeI(n)));
+    assert (*hdata);
+    
+    // copy the data to user memory
+    char* const       dest = (char*)*hdata;
+    const char* const src  = (const char*)mydata->storage();
+    const int         sz   = CCTK_VarTypeSize(CCTK_VarTypeI(n));
+    
+    int dest_index[hdim];
+    for (int dd=0; dd<hdim; ++dd) dest_index[dd] = 0;
+    for (;;) {
+      
+      vect<int,dim> src_index = lbound;
+      for (int dd=0; dd<hdim; ++dd) src_index += stride[dd] * dest_index[dd];
+      
+      int di = 0;
+      for (int dd=0; dd<hdim; ++dd) di = di * hsize[dd] + dest_index[dd];
+      
+      const int si = mydata->offset(src_index);
+      
+      memcpy(dest + sz*di, src + sz*si, sz);
+      
+      for (int dd=0; dd<hdim; ++dd) {
+	++dest_index[dd];
+	if (dest_index[dd]<hsize[dd]) break;
+	dest_index[dd]=0;
+	if (dd==hdim-1) goto done;
+      }
+    }
+  done:
+    
+    return 0;
+  }
+  
+  
+  
+  int Hyperslab_GetHyperslab (cGH* cgh,
+			      int target_proc,
+			      int n,
+			      int tl,
+			      int hdim,
+			      const int origin [/*vdim*/],
+			      const int dir [/*vdim*/],
+			      const int len [/*hdim*/],
+			      const int downsample [/*hdim*/],
+			      void** hdata,
+			      int hsize [/*hdim*/])
+  {
+    // check current status
+    assert (mglevel>=0);
+    assert (reflevel>=0);
+    
+    const int saved_component = component;
+    component = -1;
+    
+    // check arguments
+    assert (n>=0 && n<CCTK_NumVars());
+    assert (tl>=0);
+    assert (hdim>0 && hdim<=dim);
+    // the following assertion is too strict (better allow arbitrary values)
+    {
+      // TODO: make sure that origin is within the extent of this
+      // refinement / multigrid level
+      // (but no such extent is stored in dh)
+      const int group = CCTK_GroupIndexFromVarI(n);
+      assert (group>=0);
+      switch (CCTK_GroupTypeFromVarI(n)) {
+      case CCTK_SCALAR:
+	abort();
+      case CCTK_ARRAY:
+	assert (group<(int)arrdata.size());
+	break;
+      case CCTK_GF:
+	assert (group<(int)gfdata.size());
+	break;
+      default:
+	abort();
+      }
+    }
+    // the following assertion is too strict (better allow arbitrary values)
+    for (int d=0; d<dim; ++d) assert (dir[d]==0 || dir[d]==1);
+    // the following assertion is too strict (better allow arbitrary values)
+    for (int d=0; d<hdim; ++d) assert (downsample[d]>0);
+    assert (hdata);
+    assert (hsize);
+    
+    int collect_proc = target_proc;
+    if (collect_proc<0) collect_proc = 0;
+    
+    assert (hh->components(reflevel)>0);
+    *hdata = 0;
+    for (int dd=0; dd<hdim; ++dd) hsize[dd] = 0;
+    int totalhsize = 0;
+    
+    const int sz = CCTK_VarTypeSize(CCTK_VarTypeI(n));
+    
+    // loop over all components
+    for (component=0; component<hh->components(reflevel); ++component) {
+      
+      void* myhdata;
+      int myhsize[hdim], ghsize[hdim], hoffset[hdim];
+      
+      const int retval = Hyperslab_GetLocalHyperslab
+	(cgh, n, tl, hdim, origin, dir, len, downsample,
+	 &myhdata, myhsize, ghsize, hoffset);
+      
+      int mytotalsize = 1;
+      for (int dd=0; dd<hdim; ++dd) mytotalsize *= myhsize[dd];
+      
+      if (component==0) {
+	if (target_proc<0 || target_proc == CCTK_MyProc(cgh)) {
+	  
+	  totalhsize = 1;
+	  for (int dd=0; dd<hdim; ++dd) totalhsize *= hsize[dd];
+	  
+	  if (collect_proc == CCTK_MyProc(cgh)) {
+	    *hdata = malloc(totalhsize * sz);
+	    assert (*hdata);
+	  } else {
+	    *hdata = 0;
+	  }
+	  
+	  for (int dd=0; dd<hdim; ++dd) hsize[dd] = ghsize[dd];
+	
+	}
+      }
+      
+      if (!myhdata && collect_proc == CCTK_MyProc(cgh)) {
+	myhdata = malloc(mytotalsize * sz);
+	assert (myhdata);
+	MPI_Status status;
+	MPI_Recv (myhdata, mytotalsize*sz, MPI_BYTE,
+		  MPI_ANY_SOURCE, 2001, CarpetMPICommunicator(), &status);
+      } else if (myhdata && collect_proc != CCTK_MyProc(cgh)) {
+	MPI_Send (myhdata, mytotalsize*sz, MPI_BYTE,
+		  collect_proc, 2001, CarpetMPICommunicator());
+	free (myhdata);
+	myhdata = 0;
+      }
+      
+      if (myhdata) {
+	assert (collect_proc == CCTK_MyProc(cgh));
+	
+	int dest_index[hdim], src_index[hdim];
+	for (int dd=0; dd<hdim; ++dd) dest_index[dd] = hoffset[dd];
+	for (int dd=0; dd<hdim; ++dd) src_index[dd] = 0;
+	for (;;) {
+	  int di=0;
+	  for (int dd=0; dd<hdim; ++dd) di = di * hsize[dd] + dest_index[dd];
+	  int si=0;
+	  for (int dd=0; dd<hdim; ++dd) si = si * myhsize[dd] + src_index[dd];
+	  
+	  memcpy ((char*)*hdata + sz*di, (char*)myhdata + sz*si, sz);
+	  
+	  for (int dd=0; dd<hdim; ++dd) {
+	    ++dest_index[dd];
+	    ++src_index[dd];
+	    if (src_index[dd] < myhsize[dd]) break;
+	    dest_index[dd] = hoffset[dd];
+	    src_index[dd] = 0;
+	    if (dd==hdim-1) goto done;
+	  }
+	}
+      done:
+	
+	free (myhdata);
+	myhdata = 0;
+      } else {
+	assert (collect_proc != CCTK_MyProc(cgh));
+      }
+      
+    }
+    
+    if (target_proc<0) {
+      MPI_Bcast (hdata, totalhsize*sz, MPI_BYTE, collect_proc, CarpetMPICommunicator());
+    }
+    
+    component = saved_component;
+    
+    return 0;
+  }
+  
+} // namespace Carpet
diff --git a/Carpet/CarpetSlab/src/carpetslab.hh b/Carpet/CarpetSlab/src/carpetslab.hh
new file mode 100644
index 000000000..04c6bfda3
--- /dev/null
+++ b/Carpet/CarpetSlab/src/carpetslab.hh
@@ -0,0 +1,36 @@
+// $Header: /home/eschnett/C/carpet/Carpet/Carpet/CarpetSlab/src/Attic/carpetslab.hh,v 1.1 2001/03/01 13:40:11 eschnett Exp $
+
+#include "cctk.h"
+
+namespace Carpet {
+  
+  extern "C" {
+    
+    int Hyperslab_GetLocalHyperslab (cGH* GH,
+				     int vindex,
+				     int vtimelvl,
+				     int hdim,
+				     const int global_startpoint [/*vdim*/],
+				     const int directions [/*vdim*/],
+				     const int lengths [/*hdim*/],
+				     const int downsample [/*hdim*/],
+				     void** hdata,
+				     int hsize [/*hdim*/],
+				     int ghsize [/*hdim*/],
+				     int hoffset [/*hdim*/]);
+    
+    int Hyperslab_GetHyperslab (cGH* GH,
+				int target_proc,
+				int vindex,
+				int vtimelvl,
+				int hdim,
+				const int global_startpoint [/*vdim*/],
+				const int directions [/*vdim*/],
+				const int lengths [/*hdim*/],
+				const int downsample [/*hdim*/],
+				void** hdata,
+				int hsize [/*hdim*/]);
+    
+  } // extern "C"
+  
+} // namespace Carpet
diff --git a/Carpet/CarpetSlab/src/make.code.defn b/Carpet/CarpetSlab/src/make.code.defn
index 880ebcffc..750dc9847 100644
--- a/Carpet/CarpetSlab/src/make.code.defn
+++ b/Carpet/CarpetSlab/src/make.code.defn
@@ -1,8 +1,8 @@
 # Main make.code.defn file for thorn CarpetSlab   -*-Makefile-*-
-# $Header: /home/eschnett/C/carpet/Carpet/Carpet/CarpetSlab/src/make.code.defn,v 1.2 2002/10/24 10:53:48 schnetter Exp $
+# $Header: /home/eschnett/C/carpet/Carpet/Carpet/CarpetSlab/src/make.code.defn,v 1.1 2001/03/01 13:40:11 eschnett Exp $
 
 # Source files in this directory
-SRCS = slab.cc
+SRCS = carpetslab.cc
 
 # Subdirectories containing source files
 SUBDIRS = 
-- 
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