1c4762a1bSJed Brown static char help[] = "Tests MatMPIBAIJ format in sequential run \n";
2c4762a1bSJed Brown
3c4762a1bSJed Brown #include <petscmat.h>
main(int argc,char ** args)4d71ae5a4SJacob Faibussowitsch int main(int argc, char **args)
5d71ae5a4SJacob Faibussowitsch {
6c4762a1bSJed Brown Mat A, B;
7c4762a1bSJed Brown PetscInt i, rstart, rend;
8c4762a1bSJed Brown PetscMPIInt rank, size;
9c4762a1bSJed Brown PetscScalar v;
10c4762a1bSJed Brown
11327415f7SBarry Smith PetscFunctionBeginUser;
12c8025a54SPierre Jolivet PetscCall(PetscInitialize(&argc, &args, NULL, help));
139566063dSJacob Faibussowitsch PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD, &rank));
149566063dSJacob Faibussowitsch PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD, &size));
15c4762a1bSJed Brown
16c4762a1bSJed Brown /* Create a MPIBAIJ matrix */
179566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD, &A));
189566063dSJacob Faibussowitsch PetscCall(MatSetSizes(A, PETSC_DECIDE, PETSC_DECIDE, 32, 32));
199566063dSJacob Faibussowitsch PetscCall(MatSetType(A, MATMPIBAIJ));
209566063dSJacob Faibussowitsch PetscCall(MatSeqBAIJSetPreallocation(A, 2, 2, NULL));
219566063dSJacob Faibussowitsch PetscCall(MatMPIBAIJSetPreallocation(A, 2, 2, NULL, 2, NULL));
22c4762a1bSJed Brown
23c4762a1bSJed Brown v = 1.0;
249566063dSJacob Faibussowitsch PetscCall(MatGetOwnershipRange(A, &rstart, &rend));
2548a46eb9SPierre Jolivet for (i = rstart; i < rend; i++) PetscCall(MatSetValues(A, 1, &i, 1, &i, &v, INSERT_VALUES));
269566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY));
279566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY));
28c4762a1bSJed Brown
29c4762a1bSJed Brown /* Convert A to AIJ format */
309566063dSJacob Faibussowitsch PetscCall(MatConvert(A, MATAIJ, MAT_INITIAL_MATRIX, &B));
31c4762a1bSJed Brown
329566063dSJacob Faibussowitsch PetscCall(MatDestroy(&A));
339566063dSJacob Faibussowitsch PetscCall(MatDestroy(&B));
349566063dSJacob Faibussowitsch PetscCall(PetscFinalize());
35b122ec5aSJacob Faibussowitsch return 0;
36c4762a1bSJed Brown }
37c4762a1bSJed Brown
38c4762a1bSJed Brown /*TEST
39c4762a1bSJed Brown
40c4762a1bSJed Brown test:
41*3886731fSPierre Jolivet output_file: output/empty.out
42c4762a1bSJed Brown
43c4762a1bSJed Brown TEST*/
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