PetscErrorCode CreateMesh(MPI_Comm comm, AppCtx *user, DM *dm)
{
PetscInt dim = user->dim;
PetscBool cellHybrid = user->cellHybrid;
PetscBool cellSimplex = user->cellSimplex;
PetscMPIInt rank, size;
PetscErrorCode ierr;
PetscFunctionBegin;
ierr = MPI_Comm_rank(comm, &rank);CHKERRQ(ierr);
ierr = MPI_Comm_size(comm, &size);CHKERRQ(ierr);
ierr = DMCreate(comm, dm);CHKERRQ(ierr);
ierr = DMSetType(*dm, DMPLEX);CHKERRQ(ierr);
ierr = DMSetDimension(*dm, dim);CHKERRQ(ierr);
switch (dim) {
case 1:
if (cellHybrid) SETERRQ1(comm, PETSC_ERR_ARG_OUTOFRANGE, "Cannot make hybrid meshes for dimension %d", dim);
ierr = CreateSimplex_1D(comm, dm);CHKERRQ(ierr);
break;
case 2:
if (cellSimplex) {
if (cellHybrid) {
ierr = CreateSimplexHybrid_2D(comm, user->testNum, dm);CHKERRQ(ierr);
} else {
ierr = CreateSimplex_2D(comm, dm);CHKERRQ(ierr);
}
} else {
if (cellHybrid) {
ierr = CreateTensorProductHybrid_2D(comm, user->testNum, dm);CHKERRQ(ierr);
} else {
ierr = CreateTensorProduct_2D(comm, user->testNum, dm);CHKERRQ(ierr);
}
}
break;
case 3:
if (cellSimplex) {
if (cellHybrid) {
ierr = CreateSimplexHybrid_3D(comm, user->testNum, dm);CHKERRQ(ierr);
} else {
ierr = CreateSimplex_3D(comm, user->testNum, dm);CHKERRQ(ierr);
}
} else {
if (cellHybrid) {
ierr = CreateTensorProductHybrid_3D(comm, user->testNum, dm);CHKERRQ(ierr);
} else {
ierr = CreateTensorProduct_3D(comm, user->testNum, dm);CHKERRQ(ierr);
}
}
break;
default:
SETERRQ1(comm, PETSC_ERR_ARG_OUTOFRANGE, "Cannot make meshes for dimension %d", dim);
}
if (user->testPartition && size > 1) {
PetscPartitioner part;
PetscInt *sizes = NULL;
PetscInt *points = NULL;
if (!rank) {
if (dim == 2 && cellSimplex && !cellHybrid && size == 2) {
switch (user->testNum) {
case 0: {
PetscInt triSizes_p2[2] = {1, 1};
PetscInt triPoints_p2[2] = {0, 1};
ierr = PetscMalloc2(2, &sizes, 2, &points);CHKERRQ(ierr);
ierr = PetscMemcpy(sizes, triSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
ierr = PetscMemcpy(points, triPoints_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);break;}
default:
SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for triangular mesh on 2 procs", user->testNum);
}
} else if (dim == 2 && cellSimplex && cellHybrid && size == 2) {
switch (user->testNum) {
case 0: {
PetscInt triSizes_p2[2] = {1, 2};
PetscInt triPoints_p2[3] = {0, 1, 2};
ierr = PetscMalloc2(2, &sizes, 3, &points);CHKERRQ(ierr);
ierr = PetscMemcpy(sizes, triSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
ierr = PetscMemcpy(points, triPoints_p2, 3 * sizeof(PetscInt));CHKERRQ(ierr);break;}
default:
SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for triangular hybrid mesh on 2 procs", user->testNum);
}
} else if (dim == 2 && !cellSimplex && !cellHybrid && size == 2) {
switch (user->testNum) {
case 0: {
PetscInt quadSizes_p2[2] = {1, 1};
PetscInt quadPoints_p2[2] = {0, 1};
ierr = PetscMalloc2(2, &sizes, 2, &points);CHKERRQ(ierr);
ierr = PetscMemcpy(sizes, quadSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
ierr = PetscMemcpy(points, quadPoints_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);break;}
default:
SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for quadrilateral mesh on 2 procs", user->testNum);
}
} else if (dim == 2 && !cellSimplex && cellHybrid && size == 2) {
switch (user->testNum) {
case 0: {
PetscInt quadSizes_p2[2] = {1, 2};
PetscInt quadPoints_p2[3] = {0, 1, 2};
ierr = PetscMalloc2(2, &sizes, 3, &points);CHKERRQ(ierr);
ierr = PetscMemcpy(sizes, quadSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
ierr = PetscMemcpy(points, quadPoints_p2, 3 * sizeof(PetscInt));CHKERRQ(ierr);break;}
default:
SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for quadrilateral hybrid mesh on 2 procs", user->testNum);
}
} else if (dim == 3 && cellSimplex && !cellHybrid && size == 2) {
switch (user->testNum) {
case 0: {
PetscInt tetSizes_p2[2] = {1, 1};
PetscInt tetPoints_p2[2] = {0, 1};
ierr = PetscMalloc2(2, &sizes, 2, &points);CHKERRQ(ierr);
ierr = PetscMemcpy(sizes, tetSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
ierr = PetscMemcpy(points, tetPoints_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);break;}
case 1: {
PetscInt tetSizes_p2[2] = {1, 1};
PetscInt tetPoints_p2[2] = {0, 1};
ierr = PetscMalloc2(2, &sizes, 2, &points);CHKERRQ(ierr);
ierr = PetscMemcpy(sizes, tetSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
ierr = PetscMemcpy(points, tetPoints_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);break;}
default:
SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for tetrahedral mesh on 2 procs", user->testNum);
}
} else if (dim == 3 && cellSimplex && cellHybrid && size == 2) {
switch (user->testNum) {
case 0: {
PetscInt tetSizes_p2[2] = {1, 2};
PetscInt tetPoints_p2[3] = {0, 1, 2};
ierr = PetscMalloc2(2, &sizes, 3, &points);CHKERRQ(ierr);
ierr = PetscMemcpy(sizes, tetSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
ierr = PetscMemcpy(points, tetPoints_p2, 3 * sizeof(PetscInt));CHKERRQ(ierr);break;}
case 1: {
PetscInt tetSizes_p2[2] = {3, 4};
PetscInt tetPoints_p2[7] = {0, 3, 5, 1, 2, 4, 6};
ierr = PetscMalloc2(2, &sizes, 7, &points);CHKERRQ(ierr);
ierr = PetscMemcpy(sizes, tetSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
ierr = PetscMemcpy(points, tetPoints_p2, 7 * sizeof(PetscInt));CHKERRQ(ierr);break;}
default:
SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for tetrahedral hybrid mesh on 2 procs", user->testNum);
}
} else if (dim == 3 && !cellSimplex && !cellHybrid && size == 2) {
switch (user->testNum) {
case 0: {
PetscInt hexSizes_p2[2] = {1, 1};
PetscInt hexPoints_p2[2] = {0, 1};
ierr = PetscMalloc2(2, &sizes, 2, &points);CHKERRQ(ierr);
ierr = PetscMemcpy(sizes, hexSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
ierr = PetscMemcpy(points, hexPoints_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);break;}
default:
SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for hexahedral mesh on 2 procs", user->testNum);
}
} else if (dim == 3 && !cellSimplex && cellHybrid && size == 2) {
switch (user->testNum) {
case 0: {
PetscInt hexSizes_p2[2] = {1, 1};
PetscInt hexPoints_p2[2] = {0, 1};
ierr = PetscMalloc2(2, &sizes, 2, &points);CHKERRQ(ierr);
ierr = PetscMemcpy(sizes, hexSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
ierr = PetscMemcpy(points, hexPoints_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);break;}
case 1: {
PetscInt hexSizes_p2[2] = {5, 4};
PetscInt hexPoints_p2[9] = {3, 4, 5, 7, 8, 0, 1, 2, 6};
ierr = PetscMalloc2(2, &sizes, 9, &points);CHKERRQ(ierr);
ierr = PetscMemcpy(sizes, hexSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
ierr = PetscMemcpy(points, hexPoints_p2, 9 * sizeof(PetscInt));CHKERRQ(ierr);break;}
default:
SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for hexahedral hybrid mesh on 2 procs", user->testNum);
}
} else SETERRQ(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test partition");
}
ierr = DMPlexGetPartitioner(*dm, &part);CHKERRQ(ierr);
ierr = PetscPartitionerSetType(part, PETSCPARTITIONERSHELL);CHKERRQ(ierr);
ierr = PetscPartitionerShellSetPartition(part, size, sizes, points);CHKERRQ(ierr);
ierr = PetscFree2(sizes, points);CHKERRQ(ierr);
} else {
PetscPartitioner part;
ierr = DMPlexGetPartitioner(*dm,&part);CHKERRQ(ierr);
ierr = PetscPartitionerSetFromOptions(part);CHKERRQ(ierr);
}
{
DM pdm = NULL;
ierr = DMPlexDistribute(*dm, 0, NULL, &pdm);CHKERRQ(ierr);
if (pdm) {
ierr = DMViewFromOptions(pdm, NULL, "-dm_view");CHKERRQ(ierr);
ierr = DMDestroy(dm);CHKERRQ(ierr);
*dm = pdm;
}
}
ierr = DMSetFromOptions(*dm);CHKERRQ(ierr);
if (user->simplex2tensor) {
DM rdm = NULL;
ierr = DMPlexSetRefinementUniform(*dm, PETSC_TRUE);CHKERRQ(ierr);
ierr = DMPlexRefineSimplexToTensor(*dm, &rdm);CHKERRQ(ierr);
if (rdm) {
ierr = DMDestroy(dm);CHKERRQ(ierr);
*dm = rdm;
}
user->cellSimplex = PETSC_FALSE;
}
if (user->uninterpolate || user->reinterpolate) {
DM udm = NULL;
ierr = DMPlexUninterpolate(*dm, &udm);CHKERRQ(ierr);
ierr = DMPlexCopyCoordinates(*dm, udm);CHKERRQ(ierr);
ierr = DMDestroy(dm);CHKERRQ(ierr);
*dm = udm;
}
if (user->reinterpolate) {
DM idm = NULL;
ierr = DMPlexInterpolate(*dm, &idm);CHKERRQ(ierr);
ierr = DMPlexCopyCoordinates(*dm, idm);CHKERRQ(ierr);
ierr = DMDestroy(dm);CHKERRQ(ierr);
*dm = idm;
}
ierr = PetscObjectSetName((PetscObject) *dm, "Hybrid Mesh");CHKERRQ(ierr);
ierr = DMViewFromOptions(*dm, NULL, "-dm_view");CHKERRQ(ierr);
ierr = PetscObjectSetOptionsPrefix((PetscObject) *dm, "hyb_");CHKERRQ(ierr);
ierr = DMSetFromOptions(*dm);CHKERRQ(ierr);
PetscFunctionReturn(0);
}
PetscErrorCode CreateMesh(MPI_Comm comm, AppCtx *user, DM *dm)
{
PetscInt dim = user->dim;
PetscInt numRefinements = user->numRefinements;
PetscBool cellHybrid = user->cellHybrid;
PetscBool cellSimplex = user->cellSimplex;
PetscMPIInt rank;
PetscErrorCode ierr;
PetscFunctionBegin;
ierr = MPI_Comm_rank(comm, &rank);CHKERRQ(ierr);
ierr = DMCreate(comm, dm);CHKERRQ(ierr);
ierr = DMSetType(*dm, DMPLEX);CHKERRQ(ierr);
ierr = DMSetDimension(*dm, dim);CHKERRQ(ierr);
switch (dim) {
case 1:
if (cellHybrid) SETERRQ1(comm, PETSC_ERR_ARG_OUTOFRANGE, "Cannot make hybrid meshes for dimension %d", dim);
ierr = CreateSimplex_1D(comm, dm);CHKERRQ(ierr);
break;
case 2:
if (cellSimplex) {
if (cellHybrid) {
ierr = CreateSimplexHybrid_2D(comm, user->testNum, dm);CHKERRQ(ierr);
} else {
ierr = CreateSimplex_2D(comm, dm);CHKERRQ(ierr);
}
} else {
if (cellHybrid) {
ierr = CreateTensorProductHybrid_2D(comm, user->testNum, dm);CHKERRQ(ierr);
} else {
ierr = CreateTensorProduct_2D(comm, user->testNum, dm);CHKERRQ(ierr);
}
}
break;
case 3:
if (cellSimplex) {
if (cellHybrid) {
ierr = CreateSimplexHybrid_3D(comm, user->testNum, dm);CHKERRQ(ierr);
} else {
ierr = CreateSimplex_3D(comm, user->testNum, dm);CHKERRQ(ierr);
}
} else {
if (cellHybrid) {
ierr = CreateTensorProductHybrid_3D(comm, user->testNum, dm);CHKERRQ(ierr);
} else {
ierr = CreateTensorProduct_3D(comm, user->testNum, dm);CHKERRQ(ierr);
}
}
break;
default:
SETERRQ1(comm, PETSC_ERR_ARG_OUTOFRANGE, "Cannot make meshes for dimension %d", dim);
}
{
DM refinedMesh = NULL;
DM distributedMesh = NULL;
PetscInt r;
/* Distribute mesh over processes */
ierr = DMPlexDistribute(*dm, 0, NULL, &distributedMesh);CHKERRQ(ierr);
if (distributedMesh) {
ierr = DMViewFromOptions(distributedMesh, NULL, "-dm_view");CHKERRQ(ierr);
ierr = DMDestroy(dm);CHKERRQ(ierr);
*dm = distributedMesh;
}
for (r = 0; r < numRefinements; ++r) {
ierr = DMViewFromOptions(*dm, NULL, "-orig_dm_view");CHKERRQ(ierr);
ierr = DMPlexCheckSymmetry(*dm);CHKERRQ(ierr);
ierr = DMPlexCheckSkeleton(*dm, user->cellSimplex, 0);CHKERRQ(ierr);
ierr = DMPlexCheckFaces(*dm, user->cellSimplex, 0);CHKERRQ(ierr);
ierr = DMPlexSetRefinementUniform(*dm, PETSC_TRUE);CHKERRQ(ierr);
ierr = DMRefine(*dm, comm, &refinedMesh);CHKERRQ(ierr);
if (refinedMesh) {
ierr = DMDestroy(dm);CHKERRQ(ierr);
*dm = refinedMesh;
}
}
}
if (user->uninterpolate) {
DM udm = NULL;
ierr = DMPlexUninterpolate(*dm, &udm);CHKERRQ(ierr);
ierr = DMDestroy(dm);CHKERRQ(ierr);
*dm = udm;
}
ierr = PetscObjectSetName((PetscObject) *dm, "Hybrid Mesh");CHKERRQ(ierr);
ierr = DMViewFromOptions(*dm, NULL, "-dm_view");CHKERRQ(ierr);
PetscFunctionReturn(0);
}