Test shound run on PETSC_COMM_WORLD not MPI_COMM_WORLD (possibility of subcommunicator)

diff --git a/CoreFlows/examples/C/WaveSystem_FV_SphericalExplosion_MPI.cxx b/CoreFlows/examples/C/WaveSystem_FV_SphericalExplosion_MPI.cxx
index 814513a1f755be80fe2914f19352cc91d5f29123..fc628856535a94515653ae89b3973544a000a75b 100755 (executable)
--- a/CoreFlows/examples/C/WaveSystem_FV_SphericalExplosion_MPI.cxx
+++ b/CoreFlows/examples/C/WaveSystem_FV_SphericalExplosion_MPI.cxx
@@ -200,7 +200,7 @@ void WaveSystem(double tmax, int ntmax, double cfl, int output_freq, const Mesh&
        if(rank == 0)
            globalNbUnknowns=my_mesh.getNumberOfCells()*(my_mesh.getMeshDimension()+1);//nbCells*nbComp
        
-       MPI_Bcast(&globalNbUnknowns, 1, MPI_INT, 0, MPI_COMM_WORLD);
+       MPI_Bcast(&globalNbUnknowns, 1, MPI_INT, 0, PETSC_COMM_WORLD);
  
     /* iteration vectors */
        VecCreateMPI(PETSC_COMM_WORLD,PETSC_DECIDE    ,globalNbUnknowns,&Un);
@@ -219,8 +219,8 @@ void WaveSystem(double tmax, int ntmax, double cfl, int output_freq, const Mesh&
            d_nnz=(nbVoisinsMax+1)*(my_mesh.getMeshDimension()+1);//(nbVoisinsMax+1)*nbComp
            o_nnz= nbVoisinsMax   *(my_mesh.getMeshDimension()+1);//                 nbComp
        }
-       MPI_Bcast(&d_nnz, 1, MPI_INT, 0, MPI_COMM_WORLD);
-       MPI_Bcast(&o_nnz, 1, MPI_INT, 0, MPI_COMM_WORLD);
+       MPI_Bcast(&d_nnz, 1, MPI_INT, 0, PETSC_COMM_WORLD);
+       MPI_Bcast(&o_nnz, 1, MPI_INT, 0, PETSC_COMM_WORLD);
 
        MatCreateAIJ(PETSC_COMM_WORLD,localNbUnknowns,localNbUnknowns,globalNbUnknowns,globalNbUnknowns,d_nnz,NULL,o_nnz,NULL,&divMat);
 
@@ -274,7 +274,7 @@ void WaveSystem(double tmax, int ntmax, double cfl, int output_freq, const Mesh&
 
        //MatView(divMat,       PETSC_VIEWER_STDOUT_WORLD );
 
-       MPI_Bcast(&dt, 1, MPI_DOUBLE, 0, MPI_COMM_WORLD);
+       MPI_Bcast(&dt, 1, MPI_DOUBLE, 0, PETSC_COMM_WORLD);
 
     /* Time loop */
        PetscPrintf(PETSC_COMM_WORLD,"Starting computation of the linear wave system on all processors : \n\n");