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bpsswarm - set vec type during dm_mesh setup #1755

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Merged
merged 2 commits into from
Feb 13, 2025
Merged

bpsswarm - set vec type during dm_mesh setup #1755

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3719258
Minor bpswarm fixes
zatkins-dev Feb 13, 2025
3f49564
undo q_extra change
zatkins-dev Feb 13, 2025
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48 changes: 24 additions & 24 deletions examples/petsc/bpsswarm.c
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Original file line number Diff line number Diff line change
Expand Up @@ -146,6 +146,27 @@ int main(int argc, char **argv) {
}
PetscOptionsEnd();

// Set up libCEED
CeedInit(ceed_resource, &ceed);
CeedMemType mem_type_backend;
CeedGetPreferredMemType(ceed, &mem_type_backend);

// Set background mesh vec_type
switch (mem_type_backend) {
case CEED_MEM_HOST:
vec_type = VECSTANDARD;
break;
case CEED_MEM_DEVICE: {
const char *resolved;

CeedGetResource(ceed, &resolved);
if (strstr(resolved, "/gpu/cuda")) vec_type = VECCUDA;
else if (strstr(resolved, "/gpu/hip/occa")) vec_type = VECSTANDARD; // https://github.com/CEED/libCEED/issues/678
else if (strstr(resolved, "/gpu/hip")) vec_type = VECHIP;
else vec_type = VECSTANDARD;
}
}

// Setup DM
if (read_mesh) {
PetscCall(DMPlexCreateFromFile(comm, filename, NULL, PETSC_TRUE, &dm_mesh));
Expand All @@ -162,11 +183,13 @@ int main(int argc, char **argv) {
PetscCheck(!is_simplex, comm, PETSC_ERR_USER, "Only tensor-product background meshes supported");
}
}
PetscCall(DMSetVecType(dm_mesh, vec_type));
PetscCall(DMSetFromOptions(dm_mesh));

PetscCall(DMGetDimension(dm_mesh, &dim));
PetscCall(SetupDMByDegree(dm_mesh, degree, q_extra, num_comp_u, dim, bp_options[bp_choice].enforce_bc));

// View mesh
PetscCall(DMSetOptionsPrefix(dm_mesh, "final_"));
PetscCall(DMViewFromOptions(dm_mesh, NULL, "-dm_view"));

// Create particle swarm
Expand Down Expand Up @@ -195,29 +218,6 @@ int main(int argc, char **argv) {
PetscCall(PetscObjectSetName((PetscObject)dm_swarm, "Particle Swarm"));
PetscCall(DMViewFromOptions(dm_swarm, NULL, "-dm_swarm_view"));

// Set up libCEED
CeedInit(ceed_resource, &ceed);
CeedMemType mem_type_backend;
CeedGetPreferredMemType(ceed, &mem_type_backend);

// Set background mesh vec_type
switch (mem_type_backend) {
case CEED_MEM_HOST:
vec_type = VECSTANDARD;
break;
case CEED_MEM_DEVICE: {
const char *resolved;

CeedGetResource(ceed, &resolved);
if (strstr(resolved, "/gpu/cuda")) vec_type = VECCUDA;
else if (strstr(resolved, "/gpu/hip/occa")) vec_type = VECSTANDARD; // https://github.com/CEED/libCEED/issues/678
else if (strstr(resolved, "/gpu/hip")) vec_type = VECHIP;
else vec_type = VECSTANDARD;
}
}
PetscCall(DMSetVecType(dm_mesh, vec_type));
PetscCall(DMSetFromOptions(dm_mesh));

// Create vectors
PetscCall(DMCreateGlobalVector(dm_mesh, &X));
PetscCall(VecGetLocalSize(X, &l_size));
Expand Down
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