1: static const char help[] = "Test freeing of MPI types in PetscSF\n\n";

  3: #include <petscvec.h>
  4: #include <petscsf.h>
  5: #include <petscviewer.h>

  7: int main(int argc, char **argv)
  8: {
  9:   PetscSF      sf;
 10:   Vec          A, Aout;
 11:   PetscScalar *bufA;
 12:   PetscScalar *bufAout;
 13:   PetscMPIInt  rank, size;
 14:   PetscInt     nroots, nleaves;
 15:   PetscInt     i;
 16:   PetscInt    *ilocal;
 17:   PetscSFNode *iremote;
 18:   PetscBool    test_dupped_type;
 19:   MPI_Datatype contig;

 21:   PetscFunctionBeginUser;
 22:   PetscCall(PetscInitialize(&argc, &argv, NULL, help));
 23:   PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD, &rank));
 24:   PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD, &size));

 26:   PetscCheck(size == 1, PETSC_COMM_WORLD, PETSC_ERR_WRONG_MPI_SIZE, "Only coded for one MPI process");

 28:   PetscOptionsBegin(PETSC_COMM_WORLD, "", "PetscSF type freeing options", "none");
 29:   test_dupped_type = PETSC_FALSE;
 30:   PetscCall(PetscOptionsBool("-test_dupped_type", "Test dupped input type", "", test_dupped_type, &test_dupped_type, NULL));
 31:   PetscOptionsEnd();

 33:   PetscCall(PetscSFCreate(PETSC_COMM_WORLD, &sf));
 34:   PetscCall(PetscSFSetFromOptions(sf));

 36:   nleaves = 1;
 37:   nroots  = 1;
 38:   PetscCall(PetscMalloc1(nleaves, &ilocal));

 40:   for (i = 0; i < nleaves; i++) ilocal[i] = i;

 42:   PetscCall(PetscMalloc1(nleaves, &iremote));
 43:   iremote[0].rank  = 0;
 44:   iremote[0].index = 0;
 45:   PetscCall(PetscSFSetGraph(sf, nroots, nleaves, ilocal, PETSC_OWN_POINTER, iremote, PETSC_OWN_POINTER));
 46:   PetscCall(PetscSFSetUp(sf));
 47:   PetscCall(PetscSFView(sf, PETSC_VIEWER_STDOUT_WORLD));
 48:   PetscCall(VecCreate(PETSC_COMM_WORLD, &A));
 49:   PetscCall(VecSetSizes(A, 4, PETSC_DETERMINE));
 50:   PetscCall(VecSetFromOptions(A));
 51:   PetscCall(VecSetUp(A));

 53:   PetscCall(VecDuplicate(A, &Aout));
 54:   PetscCall(VecGetArray(A, &bufA));
 55:   for (i = 0; i < 4; i++) bufA[i] = (PetscScalar)i;
 56:   PetscCall(VecRestoreArray(A, &bufA));

 58:   PetscCall(VecGetArrayRead(A, (const PetscScalar **)&bufA));
 59:   PetscCall(VecGetArray(Aout, &bufAout));

 61:   PetscCallMPI(MPI_Type_contiguous(4, MPIU_SCALAR, &contig));
 62:   PetscCallMPI(MPI_Type_commit(&contig));

 64:   if (test_dupped_type) {
 65:     MPI_Datatype tmp;
 66:     PetscCallMPI(MPI_Type_dup(contig, &tmp));
 67:     PetscCallMPI(MPI_Type_free(&contig));
 68:     contig = tmp;
 69:   }
 70:   PetscCall(PetscSFRegisterPersistent(sf, contig, bufA, bufAout));
 71:   for (i = 0; i < 10000; i++) {
 72:     PetscCall(PetscSFBcastBegin(sf, contig, bufA, bufAout, MPI_REPLACE));
 73:     PetscCall(PetscSFBcastEnd(sf, contig, bufA, bufAout, MPI_REPLACE));
 74:   }
 75:   PetscCall(PetscSFDeregisterPersistent(sf, contig, bufA, bufAout));
 76:   PetscCall(VecRestoreArrayRead(A, (const PetscScalar **)&bufA));
 77:   PetscCall(VecRestoreArray(Aout, &bufAout));

 79:   PetscCall(VecView(Aout, PETSC_VIEWER_STDOUT_WORLD));
 80:   PetscCall(VecDestroy(&A));
 81:   PetscCall(VecDestroy(&Aout));
 82:   PetscCall(PetscSFDestroy(&sf));
 83:   PetscCallMPI(MPI_Type_free(&contig));
 84:   PetscCall(PetscFinalize());
 85:   return 0;
 86: }

 88: /*TEST

 90:    test:
 91:       suffix: basic
 92:       args: -sf_type basic

 94:    test:
 95:       suffix: basic_dupped
 96:       args: -test_dupped_type -sf_type basic

 98:    test:
 99:       suffix: window
100:       filter: grep -v "type" | grep -v "sort"
101:       args: -sf_type window -sf_window_sync {{fence active lock}} -sf_window_flavor {{create allocate dynamic}}
102:       requires: defined(PETSC_HAVE_MPI_ONE_SIDED) defined(PETSC_HAVE_MPI_FEATURE_DYNAMIC_WINDOW)

104:    test:
105:       suffix: window_dupped
106:       filter: grep -v "type" | grep -v "sort"
107:       args: -test_dupped_type -sf_type window -sf_window_sync {{fence active lock}} -sf_window_flavor {{create allocate dynamic}}
108:       requires: defined(PETSC_HAVE_MPI_ONE_SIDED) defined(PETSC_HAVE_MPI_FEATURE_DYNAMIC_WINDOW)

110:    test:
111:       suffix: window_shared
112:       output_file: output/ex3_window.out
113:       filter: grep -v "type" | grep -v "sort"
114:       args: -sf_type window -sf_window_sync {{fence active lock}} -sf_window_flavor shared
115:       requires: defined(PETSC_HAVE_MPI_PROCESS_SHARED_MEMORY) defined(PETSC_HAVE_MPI_ONE_SIDED) !defined(PETSC_HAVE_I_MPI)

117:    test:
118:       suffix: window_dupped_shared
119:       output_file: output/ex3_window_dupped.out
120:       filter: grep -v "type" | grep -v "sort"
121:       args: -test_dupped_type -sf_type window -sf_window_sync {{fence active lock}} -sf_window_flavor shared
122:       requires: defined(PETSC_HAVE_MPI_PROCESS_SHARED_MEMORY) defined(PETSC_HAVE_MPI_ONE_SIDED) !defined(PETSC_HAVE_I_MPI)

124: TEST*/