1c4762a1bSJed Brown static char help[] = "Test MatAXPY and SUBSET_NONZERO_PATTERN [-different] [-skip]\n by default subset pattern is used \n\n";
2c4762a1bSJed Brown
3c4762a1bSJed Brown /* A test contributed by Jose E. Roman, Oct. 2014 */
4c4762a1bSJed Brown
5c4762a1bSJed Brown #include <petscmat.h>
6c4762a1bSJed Brown
main(int argc,char ** args)7d71ae5a4SJacob Faibussowitsch int main(int argc, char **args)
8d71ae5a4SJacob Faibussowitsch {
9c4762a1bSJed Brown Mat A, B, C;
10c4762a1bSJed Brown PetscBool different = PETSC_FALSE, skip = PETSC_FALSE;
11c4762a1bSJed Brown PetscInt m0, m1, n = 128, i;
12c4762a1bSJed Brown
13327415f7SBarry Smith PetscFunctionBeginUser;
14c8025a54SPierre Jolivet PetscCall(PetscInitialize(&argc, &args, NULL, help));
159566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetBool(NULL, NULL, "-different", &different, NULL));
169566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetBool(NULL, NULL, "-skip", &skip, NULL));
17c4762a1bSJed Brown /*
18c4762a1bSJed Brown Create matrices
19c4762a1bSJed Brown A = tridiag(1,-2,1) and B = diag(7);
20c4762a1bSJed Brown */
219566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD, &A));
229566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD, &B));
239566063dSJacob Faibussowitsch PetscCall(MatSetSizes(A, PETSC_DECIDE, PETSC_DECIDE, n, n));
249566063dSJacob Faibussowitsch PetscCall(MatSetSizes(B, PETSC_DECIDE, PETSC_DECIDE, n, n));
259566063dSJacob Faibussowitsch PetscCall(MatSetFromOptions(A));
269566063dSJacob Faibussowitsch PetscCall(MatSetFromOptions(B));
279566063dSJacob Faibussowitsch PetscCall(MatSetUp(A));
289566063dSJacob Faibussowitsch PetscCall(MatSetUp(B));
299566063dSJacob Faibussowitsch PetscCall(MatGetOwnershipRange(A, &m0, &m1));
30c4762a1bSJed Brown for (i = m0; i < m1; i++) {
319566063dSJacob Faibussowitsch if (i > 0) PetscCall(MatSetValue(A, i, i - 1, -1.0, INSERT_VALUES));
329566063dSJacob Faibussowitsch if (i < n - 1) PetscCall(MatSetValue(A, i, i + 1, -1.0, INSERT_VALUES));
339566063dSJacob Faibussowitsch PetscCall(MatSetValue(A, i, i, 2.0, INSERT_VALUES));
349566063dSJacob Faibussowitsch PetscCall(MatSetValue(B, i, i, 7.0, INSERT_VALUES));
35c4762a1bSJed Brown }
369566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY));
379566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY));
389566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(B, MAT_FINAL_ASSEMBLY));
399566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(B, MAT_FINAL_ASSEMBLY));
40c4762a1bSJed Brown
419566063dSJacob Faibussowitsch PetscCall(MatDuplicate(A, MAT_COPY_VALUES, &C));
42c4762a1bSJed Brown /* Add B */
439566063dSJacob Faibussowitsch PetscCall(MatAXPY(C, 1.0, B, (different) ? DIFFERENT_NONZERO_PATTERN : SUBSET_NONZERO_PATTERN));
44c4762a1bSJed Brown /* Add A */
459566063dSJacob Faibussowitsch if (!skip) PetscCall(MatAXPY(C, 1.0, A, SUBSET_NONZERO_PATTERN));
46c4762a1bSJed Brown
47c4762a1bSJed Brown /*
48c4762a1bSJed Brown Free memory
49c4762a1bSJed Brown */
509566063dSJacob Faibussowitsch PetscCall(MatDestroy(&A));
519566063dSJacob Faibussowitsch PetscCall(MatDestroy(&B));
529566063dSJacob Faibussowitsch PetscCall(MatDestroy(&C));
539566063dSJacob Faibussowitsch PetscCall(PetscFinalize());
54b122ec5aSJacob Faibussowitsch return 0;
55c4762a1bSJed Brown }
56c4762a1bSJed Brown
57c4762a1bSJed Brown /*TEST
58c4762a1bSJed Brown
59c4762a1bSJed Brown test:
60c4762a1bSJed Brown nsize: 4
61*3886731fSPierre Jolivet output_file: output/empty.out
62c4762a1bSJed Brown
63c4762a1bSJed Brown test:
64c4762a1bSJed Brown suffix: 2
65c4762a1bSJed Brown nsize: 4
66c4762a1bSJed Brown args: -different
67*3886731fSPierre Jolivet output_file: output/empty.out
68c4762a1bSJed Brown
69c4762a1bSJed Brown test:
70c4762a1bSJed Brown suffix: 3
71c4762a1bSJed Brown nsize: 4
72c4762a1bSJed Brown args: -skip
73*3886731fSPierre Jolivet output_file: output/empty.out
74c4762a1bSJed Brown
75c4762a1bSJed Brown test:
76c4762a1bSJed Brown suffix: 4
77c4762a1bSJed Brown nsize: 4
78c4762a1bSJed Brown args: -different -skip
79*3886731fSPierre Jolivet output_file: output/empty.out
80c4762a1bSJed Brown
81c4762a1bSJed Brown test:
82c4762a1bSJed Brown suffix: baij
83c4762a1bSJed Brown args: -mat_type baij> ex172.tmp 2>&1
84*3886731fSPierre Jolivet output_file: output/empty.out
85c4762a1bSJed Brown
86c4762a1bSJed Brown test:
87c4762a1bSJed Brown suffix: mpibaij
88c4762a1bSJed Brown nsize: 4
89c4762a1bSJed Brown args: -mat_type baij> ex172.tmp 2>&1
90*3886731fSPierre Jolivet output_file: output/empty.out
91c4762a1bSJed Brown
92c4762a1bSJed Brown test:
93c4762a1bSJed Brown suffix: mpisbaij
94c4762a1bSJed Brown nsize: 4
95c4762a1bSJed Brown args: -mat_type sbaij> ex172.tmp 2>&1
96*3886731fSPierre Jolivet output_file: output/empty.out
97c4762a1bSJed Brown
98c4762a1bSJed Brown test:
99c4762a1bSJed Brown suffix: sbaij
100c4762a1bSJed Brown args: -mat_type sbaij> ex172.tmp 2>&1
101*3886731fSPierre Jolivet output_file: output/empty.out
102c4762a1bSJed Brown
103c4762a1bSJed Brown TEST*/
104