1c4762a1bSJed Brown static char help[] = "Tests late MatSetBlockSizes.\n\n"; 2c4762a1bSJed Brown 3c4762a1bSJed Brown #include <petscmat.h> 4c4762a1bSJed Brown 5d71ae5a4SJacob Faibussowitsch int main(int argc, char **args) 6d71ae5a4SJacob Faibussowitsch { 7c4762a1bSJed Brown Mat A; 8c4762a1bSJed Brown Vec x[4]; 9c4762a1bSJed Brown IS is; 10c4762a1bSJed Brown ISLocalToGlobalMapping rmap, cmap; 11c4762a1bSJed Brown PetscInt bs[4], l2gbs[4], rbs, cbs, l2grbs, l2gcbs, i; 12c4762a1bSJed Brown 13327415f7SBarry Smith PetscFunctionBeginUser; 14*c8025a54SPierre Jolivet PetscCall(PetscInitialize(&argc, &args, NULL, help)); 159566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD, &A)); 169566063dSJacob Faibussowitsch PetscCall(MatSetSizes(A, 12, 12, PETSC_DECIDE, PETSC_DECIDE)); 179566063dSJacob Faibussowitsch PetscCall(MatSetType(A, MATAIJ)); 189566063dSJacob Faibussowitsch PetscCall(ISCreateStride(PETSC_COMM_WORLD, 12, 0, 1, &is)); 199566063dSJacob Faibussowitsch PetscCall(ISLocalToGlobalMappingCreateIS(is, &rmap)); 209566063dSJacob Faibussowitsch PetscCall(ISLocalToGlobalMappingSetBlockSize(rmap, 2)); 219566063dSJacob Faibussowitsch PetscCall(ISLocalToGlobalMappingCreateIS(is, &cmap)); 229566063dSJacob Faibussowitsch PetscCall(ISLocalToGlobalMappingSetBlockSize(cmap, 2)); 23c4762a1bSJed Brown 249566063dSJacob Faibussowitsch PetscCall(MatSetLocalToGlobalMapping(A, rmap, cmap)); 259566063dSJacob Faibussowitsch PetscCall(ISLocalToGlobalMappingDestroy(&rmap)); 269566063dSJacob Faibussowitsch PetscCall(ISLocalToGlobalMappingDestroy(&cmap)); 279566063dSJacob Faibussowitsch PetscCall(ISDestroy(&is)); 289566063dSJacob Faibussowitsch PetscCall(MatSetUp(A)); 29c4762a1bSJed Brown 309566063dSJacob Faibussowitsch PetscCall(MatCreateVecs(A, &x[1], &x[0])); 319566063dSJacob Faibussowitsch PetscCall(MatSetBlockSizes(A, 6, 3)); 329566063dSJacob Faibussowitsch PetscCall(MatCreateVecs(A, &x[3], &x[2])); 33c4762a1bSJed Brown for (i = 0; i < 4; i++) { 34c4762a1bSJed Brown ISLocalToGlobalMapping l2g; 35c4762a1bSJed Brown 369566063dSJacob Faibussowitsch PetscCall(VecGetBlockSize(x[i], &bs[i])); 379566063dSJacob Faibussowitsch PetscCall(VecGetLocalToGlobalMapping(x[i], &l2g)); 389566063dSJacob Faibussowitsch PetscCall(ISLocalToGlobalMappingGetBlockSize(l2g, &l2gbs[i])); 399566063dSJacob Faibussowitsch PetscCall(VecDestroy(&x[i])); 40c4762a1bSJed Brown } 419566063dSJacob Faibussowitsch PetscCall(MatGetBlockSizes(A, &rbs, &cbs)); 429566063dSJacob Faibussowitsch PetscCall(MatGetLocalToGlobalMapping(A, &rmap, &cmap)); 439566063dSJacob Faibussowitsch PetscCall(ISLocalToGlobalMappingGetBlockSize(rmap, &l2grbs)); 449566063dSJacob Faibussowitsch PetscCall(ISLocalToGlobalMappingGetBlockSize(cmap, &l2gcbs)); 459566063dSJacob Faibussowitsch PetscCall(MatDestroy(&A)); 469566063dSJacob Faibussowitsch PetscCall(PetscPrintf(PETSC_COMM_WORLD, "Mat Block sizes: %" PetscInt_FMT " %" PetscInt_FMT " (l2g %" PetscInt_FMT " %" PetscInt_FMT ")\n", rbs, cbs, l2grbs, l2gcbs)); 479566063dSJacob Faibussowitsch PetscCall(PetscPrintf(PETSC_COMM_WORLD, "Vec Block sizes: %" PetscInt_FMT " %" PetscInt_FMT " (l2g %" PetscInt_FMT " %" PetscInt_FMT ")\n", bs[0], bs[1], l2gbs[0], l2gbs[1])); 489566063dSJacob Faibussowitsch PetscCall(PetscPrintf(PETSC_COMM_WORLD, "Vec Block sizes: %" PetscInt_FMT " %" PetscInt_FMT " (l2g %" PetscInt_FMT " %" PetscInt_FMT ")\n", bs[2], bs[3], l2gbs[2], l2gbs[3])); 499566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 50b122ec5aSJacob Faibussowitsch return 0; 51c4762a1bSJed Brown } 52c4762a1bSJed Brown 53c4762a1bSJed Brown /*TEST 54c4762a1bSJed Brown 55c4762a1bSJed Brown test: 56c4762a1bSJed Brown nsize: 2 57c4762a1bSJed Brown 58c4762a1bSJed Brown TEST*/ 59