1c4762a1bSJed Brown static char help[] = "Tests various routines in MatMPIBAIJ format.\n";
2c4762a1bSJed Brown
3c4762a1bSJed Brown #include <petscmat.h>
4c4762a1bSJed Brown
main(int argc,char ** args)5d71ae5a4SJacob Faibussowitsch int main(int argc, char **args)
6d71ae5a4SJacob Faibussowitsch {
7c4762a1bSJed Brown Mat A;
8c4762a1bSJed Brown PetscInt m = 2, bs = 1, M, row, col, start, end, i, j, k;
9c4762a1bSJed Brown PetscMPIInt rank, size;
10c4762a1bSJed Brown PetscScalar data = 100;
11c4762a1bSJed Brown PetscBool flg;
12c4762a1bSJed Brown
13327415f7SBarry Smith PetscFunctionBeginUser;
14*c8025a54SPierre Jolivet PetscCall(PetscInitialize(&argc, &args, NULL, help));
159566063dSJacob Faibussowitsch PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD, &rank));
169566063dSJacob Faibussowitsch PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD, &size));
17c4762a1bSJed Brown
18c4762a1bSJed Brown /* Test MatSetValues() and MatGetValues() */
199566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL, NULL, "-mat_block_size", &bs, NULL));
209566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL, NULL, "-mat_size", &m, NULL));
21c4762a1bSJed Brown
22c4762a1bSJed Brown M = m * bs * size;
239566063dSJacob Faibussowitsch PetscCall(MatCreateBAIJ(PETSC_COMM_WORLD, bs, PETSC_DECIDE, PETSC_DECIDE, M, M, PETSC_DECIDE, NULL, PETSC_DECIDE, NULL, &A));
24c4762a1bSJed Brown
259566063dSJacob Faibussowitsch PetscCall(MatGetOwnershipRange(A, &start, &end));
269566063dSJacob Faibussowitsch PetscCall(PetscOptionsHasName(NULL, NULL, "-column_oriented", &flg));
271baa6e33SBarry Smith if (flg) PetscCall(MatSetOption(A, MAT_ROW_ORIENTED, PETSC_FALSE));
28c4762a1bSJed Brown
29c4762a1bSJed Brown /* inproc assembly */
30c4762a1bSJed Brown for (row = start; row < end; row++) {
3148a46eb9SPierre Jolivet for (col = start; col < end; col++, data += 1) PetscCall(MatSetValues(A, 1, &row, 1, &col, &data, INSERT_VALUES));
32c4762a1bSJed Brown }
339566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY));
349566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY));
35c4762a1bSJed Brown
36c4762a1bSJed Brown /* offproc assembly */
37c4762a1bSJed Brown data = 5.0;
38c4762a1bSJed Brown row = (M + start - 1) % M;
3948a46eb9SPierre Jolivet for (col = 0; col < M; col++) PetscCall(MatSetValues(A, 1, &row, 1, &col, &data, ADD_VALUES));
409566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY));
419566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY));
42c4762a1bSJed Brown
43c4762a1bSJed Brown /* Test MatSetValuesBlocked() */
449566063dSJacob Faibussowitsch PetscCall(PetscOptionsHasName(NULL, NULL, "-test_setvaluesblocked", &flg));
45c4762a1bSJed Brown if (flg) {
46c4762a1bSJed Brown PetscScalar *bval;
47c4762a1bSJed Brown row /= bs;
48c4762a1bSJed Brown col = start / bs;
499566063dSJacob Faibussowitsch PetscCall(PetscMalloc1(bs * bs, &bval));
50c4762a1bSJed Brown k = 1;
515e116b59SBarry Smith /* row-oriented - default */
52c4762a1bSJed Brown for (i = 0; i < bs; i++) {
53c4762a1bSJed Brown for (j = 0; j < bs; j++) {
549371c9d4SSatish Balay bval[i * bs + j] = (PetscScalar)k;
559371c9d4SSatish Balay k++;
56c4762a1bSJed Brown }
57c4762a1bSJed Brown }
589566063dSJacob Faibussowitsch PetscCall(MatSetValuesBlocked(A, 1, &row, 1, &col, bval, INSERT_VALUES));
599566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY));
609566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY));
619566063dSJacob Faibussowitsch PetscCall(PetscFree(bval));
62c4762a1bSJed Brown }
63c4762a1bSJed Brown
649566063dSJacob Faibussowitsch PetscCall(MatView(A, PETSC_VIEWER_STDOUT_WORLD));
659566063dSJacob Faibussowitsch PetscCall(MatDestroy(&A));
669566063dSJacob Faibussowitsch PetscCall(PetscFinalize());
67b122ec5aSJacob Faibussowitsch return 0;
68c4762a1bSJed Brown }
69c4762a1bSJed Brown
70c4762a1bSJed Brown /*TEST
71c4762a1bSJed Brown
72c4762a1bSJed Brown test:
73c4762a1bSJed Brown suffix: 1
74c4762a1bSJed Brown nsize: 3
75c4762a1bSJed Brown args: -mat_block_size 2 -test_setvaluesblocked
76c4762a1bSJed Brown
77c4762a1bSJed Brown test:
78c4762a1bSJed Brown suffix: 2
79c4762a1bSJed Brown nsize: 3
80c4762a1bSJed Brown args: -mat_block_size 2 -test_setvaluesblocked -column_oriented
81c4762a1bSJed Brown
82c4762a1bSJed Brown test:
83c4762a1bSJed Brown suffix: 3
84c4762a1bSJed Brown nsize: 3
85c4762a1bSJed Brown args: -mat_block_size 1 -test_setvaluesblocked
86c4762a1bSJed Brown
87c4762a1bSJed Brown test:
88c4762a1bSJed Brown suffix: 4
89c4762a1bSJed Brown nsize: 3
90c4762a1bSJed Brown args: -mat_block_size 1 -test_setvaluesblocked -column_oriented
91c4762a1bSJed Brown
92c4762a1bSJed Brown TEST*/
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