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diff --git a/src/ParaMEDMEM/test_IntersectionDEC3D.cxx b/src/ParaMEDMEM/test_IntersectionDEC3D.cxx
new file mode 100644 (file)
index 0000000..0602b66
--- /dev/null
+++ b/src/ParaMEDMEM/test_IntersectionDEC3D.cxx
@@ -0,0 +1,156 @@
+#include <string>
+#include <vector>
+#include <map>
+#include <iostream>
+#include <mpi.h>
+
+#include "ProcessorGroup.hxx"
+#include "Topology.hxx"
+#include "BlockTopology.hxx"
+#include "CommInterface.hxx"
+
+
+#include "MPIProcessorGroup.hxx"
+#include "MEDMEM_Mesh.hxx"
+#include "MEDMEM_Group.hxx"
+#include "MEDMEM_Support.hxx"
+#include "ParaMESH.hxx"
+#include "UnstructuredParaSUPPORT.hxx"
+#include "ComponentTopology.hxx"
+#include "ParaFIELD.hxx"
+#include "IntersectionDEC.cxx"
+
+using namespace std;
+using namespace ParaMEDMEM;
+using namespace MEDMEM;
+int main(int argc, char** argv)
+{
+  string testname="ParaMEDMEM - test #1 -";
+  MPI_Init(&argc, &argv); 
+  int size;
+  int rank;
+  MPI_Comm_size(MPI_COMM_WORLD,&size);
+  MPI_Comm_rank(MPI_COMM_WORLD,&rank);
+  if (argc !=2 || size < 2) 
+    { 
+      cout << "usage :"<<endl;
+      cout << "mpirun -n <nbprocs> test_IntersectionDEC3D <nbprocsource>"<<endl;
+      cout << " (nbprocs >=2)"<<endl;
+      return 1;
+    }
+  int nproc_source = atoi(argv[1]);
+  set<int> self_procs;
+  set<int> procs_source;
+  set<int> procs_target;
+       
+  for (int i=0; i<nproc_source; i++)
+    procs_source.insert(i);
+  for (int i=nproc_source; i<size; i++)
+    procs_target.insert(i);
+  self_procs.insert(rank);
+       
+  ParaMEDMEM::CommInterface interface;
+               
+  ParaMEDMEM::ProcessorGroup* self_group = new ParaMEDMEM::MPIProcessorGroup(interface,self_procs);
+  ParaMEDMEM::ProcessorGroup* target_group = new ParaMEDMEM::MPIProcessorGroup(interface,procs_target);
+  ParaMEDMEM::ProcessorGroup* source_group = new ParaMEDMEM::MPIProcessorGroup(interface,procs_source);
+       
+  ParaMEDMEM::ParaMESH* source_mesh=0;
+  ParaMEDMEM::ParaMESH* target_mesh=0;
+  ParaMEDMEM::ParaMESH* source_mesh_bis = 0;
+  ParaMEDMEM::ParaMESH* target_mesh_bis = 0;
+  
+  Topology* topo_source;
+  Topology* topo_target;
+  
+  MEDMEM::SUPPORT* boundary_group;
+  //loading the geometry for the source group
+  if (source_group->containsMyRank())
+    {
+                       //      string master = "/home/vb144235/resources/square128000_split";
+      string master = "/home/vb144235/resources/blade_3000_split1";
+      
+      cout <<"loading source"<<endl;
+      source_mesh=new ParaMESH(MED_DRIVER,master,*source_group);
+      cout <<"end of load"<<endl;
+      topo_source=source_mesh->getBlockTopology();
+      boundary_group = new SUPPORT(source_mesh->getMesh(), "support on all cells", MED_EN::MED_CELL);     
+    }
+  
+  //loading the geometry for the target group
+  if (target_group->containsMyRank())
+    {
+                       //      string master = "/home/vb144235/resources/square30000_split";
+      string master= "/home/vb144235/resources/blade_12000_split1";
+      target_mesh=new ParaMESH(MED_DRIVER,master,*target_group);
+      topo_target=target_mesh->getBlockTopology();
+   
+      boundary_group = new SUPPORT(target_mesh->getMesh(), "support on all cells", MED_EN::MED_CELL);     
+  
+    }
+               
+       
+  //attaching a DEC to the source group 
+  if (source_group->containsMyRank())
+    { 
+        
+      //UnstructuredParaSUPPORT source_support(boundary_group, source_group);
+      UnstructuredParaSUPPORT source_support(source_mesh, boundary_group);
+      ComponentTopology source_comp(1);
+      cout << "setting up field"<<endl;
+      ParaFIELD source_field (&source_support,source_comp);
+               
+      int nb_local = source_field.getTopology()->getNbLocalElements();
+      cout << "Source field nb elems on rank : "<<rank<<" : "<<nb_local<<endl;
+      double * value= new double[nb_local];
+      for(int ielem=0; ielem<nb_local;ielem++)
+       value[ielem]=1.0;
+      source_field.getField()->setValue(value);
+      cout <<"creating intersectionDEC"<<endl;
+      IntersectionDEC dec(*source_group,*target_group);
+      dec.attachLocalField(&source_field);
+      dec.synchronize();
+      cout<<"DEC usage"<<endl;
+      
+      dec.sendData();
+      source_mesh->write(MED_DRIVER,"/home/vb144235/tmp/sourcesquareb");
+      source_field.write(MED_DRIVER,"/home/vb144235/tmp/sourcesquareb","boundary");  
+      
+      dec.recvData();
+      cout <<"writing"<<endl;
+      source_mesh->write(MED_DRIVER,"/home/vb144235/tmp/sourcesquare");
+      source_field.write(MED_DRIVER,"/home/vb144235/tmp/sourcesquare","boundary");  
+      delete[] value;
+    }
+  
+  //attaching a DEC to the target group
+  if (target_group->containsMyRank())
+    {
+
+      UnstructuredParaSUPPORT target_support(target_mesh, boundary_group);
+      //UnstructuredParaSUPPORT target_support(boundary_group, target_group);  
+      ComponentTopology target_comp(1);
+      ParaFIELD target_field(&target_support,target_comp);
+      int nb_local = target_field.getTopology()->getNbLocalElements();
+      double * value= new double[nb_local];
+      for(int ielem=0; ielem<nb_local;ielem++)
+       value[ielem]=0.0;
+      target_field.getField()->setValue(value);
+      IntersectionDEC dec(*source_group,*target_group);
+      dec.attachLocalField(&target_field);
+      dec.synchronize();
+      dec.recvData();
+      target_mesh->write(MED_DRIVER, "/home/vb144235/tmp/targetsquareb");
+      target_field.write(MED_DRIVER, "/home/vb144235/tmp/targetsquareb", "boundary");
+      dec.sendData();
+      target_mesh->write(MED_DRIVER, "/home/vb144235/tmp/targetsquare");
+      target_field.write(MED_DRIVER, "/home/vb144235/tmp/targetsquare", "boundary");
+      delete[] value;
+    }
+       
+  MPI_Barrier(MPI_COMM_WORLD);
+  MPI_Finalize();
+  return 0;
+}
+
+