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;

 13:   PetscInitialize(&argc, &args, (char *)0, help);
 14:   /* Create a complex non-hermitian matrix */
 15:   MatCreate(PETSC_COMM_SELF, &C);
 16:   MatSetSizes(C, PETSC_DECIDE, PETSC_DECIDE, m, n);
 17:   MatSetFromOptions(C);
 18:   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) MatSetValues(C, 1, &i, 1, &j, &v, INSERT_VALUES);
 23:     }
 24:   }
 25:   MatAssemblyBegin(C, MAT_FINAL_ASSEMBLY);
 26:   MatAssemblyEnd(C, MAT_FINAL_ASSEMBLY);

 28:   MatCreateHermitianTranspose(C, &C_htransposed);

 30:   MatView(C, PETSC_VIEWER_STDOUT_SELF);
 31:   MatDuplicate(C_htransposed, MAT_COPY_VALUES, &Cht);
 32:   MatView(Cht, PETSC_VIEWER_STDOUT_SELF);
 33:   MatDuplicate(C_htransposed, MAT_DO_NOT_COPY_VALUES, &C_empty);
 34:   MatView(C_empty, PETSC_VIEWER_STDOUT_SELF);

 36:   MatDestroy(&C);
 37:   MatDestroy(&C_htransposed);
 38:   MatDestroy(&Cht);
 39:   MatDestroy(&C_empty);
 40:   PetscFinalize();
 41:   return 0;
 42: }

 44: /*TEST

 46:    build:
 47:      requires: complex

 49:    test:
 50:      output_file: output/ex175.out

 52: TEST*/