Actual source code: ex175.c
2: static char help[] = "Tests MatCreateHermitianTranspose().\n\n";
4: #include <petscmat.h>
6: int main(int argc, char **args)
7: {
8: Mat C, C_htransposed, Cht, C_empty;
9: PetscInt i, j, m = 10, n = 10;
10: PetscScalar v;
12: PetscFunctionBeginUser;
13: PetscCall(PetscInitialize(&argc, &args, (char *)0, help));
14: /* Create a complex non-hermitian matrix */
15: PetscCall(MatCreate(PETSC_COMM_SELF, &C));
16: PetscCall(MatSetSizes(C, PETSC_DECIDE, PETSC_DECIDE, m, n));
17: PetscCall(MatSetFromOptions(C));
18: PetscCall(MatSetUp(C));
19: for (i = 0; i < m; i++) {
20: for (j = 0; j < n; j++) {
21: v = 0.0 - 1.0 * PETSC_i;
22: if (i > j && i - j < 2) PetscCall(MatSetValues(C, 1, &i, 1, &j, &v, INSERT_VALUES));
23: }
24: }
25: PetscCall(MatAssemblyBegin(C, MAT_FINAL_ASSEMBLY));
26: PetscCall(MatAssemblyEnd(C, MAT_FINAL_ASSEMBLY));
28: PetscCall(MatCreateHermitianTranspose(C, &C_htransposed));
30: PetscCall(MatView(C, PETSC_VIEWER_STDOUT_SELF));
31: PetscCall(MatDuplicate(C_htransposed, MAT_COPY_VALUES, &Cht));
32: PetscCall(MatView(Cht, PETSC_VIEWER_STDOUT_SELF));
33: PetscCall(MatDuplicate(C_htransposed, MAT_DO_NOT_COPY_VALUES, &C_empty));
34: PetscCall(MatView(C_empty, PETSC_VIEWER_STDOUT_SELF));
36: PetscCall(MatDestroy(&C));
37: PetscCall(MatDestroy(&C_htransposed));
38: PetscCall(MatDestroy(&Cht));
39: PetscCall(MatDestroy(&C_empty));
40: PetscCall(PetscFinalize());
41: return 0;
42: }
44: /*TEST
46: build:
47: requires: complex
49: test:
50: output_file: output/ex175.out
52: TEST*/