1 static char help[] = "Tests MatCreateHermitianTranspose().\n\n"; 2 3 #include <petscmat.h> 4 5 int main(int argc, char **args) 6 { 7 Mat C, C_htransposed, Cht, C_empty; 8 PetscInt i, j, m = 10, n = 10; 9 PetscScalar v; 10 11 PetscFunctionBeginUser; 12 PetscCall(PetscInitialize(&argc, &args, (char *)0, help)); 13 /* Create a complex non-hermitian matrix */ 14 PetscCall(MatCreate(PETSC_COMM_SELF, &C)); 15 PetscCall(MatSetSizes(C, PETSC_DECIDE, PETSC_DECIDE, m, n)); 16 PetscCall(MatSetFromOptions(C)); 17 PetscCall(MatSetUp(C)); 18 for (i = 0; i < m; i++) { 19 for (j = 0; j < n; j++) { 20 v = 0.0 - 1.0 * PETSC_i; 21 if (i > j && i - j < 2) PetscCall(MatSetValues(C, 1, &i, 1, &j, &v, INSERT_VALUES)); 22 } 23 } 24 PetscCall(MatAssemblyBegin(C, MAT_FINAL_ASSEMBLY)); 25 PetscCall(MatAssemblyEnd(C, MAT_FINAL_ASSEMBLY)); 26 27 PetscCall(MatCreateHermitianTranspose(C, &C_htransposed)); 28 29 PetscCall(MatView(C, PETSC_VIEWER_STDOUT_SELF)); 30 PetscCall(MatDuplicate(C_htransposed, MAT_COPY_VALUES, &Cht)); 31 PetscCall(MatView(Cht, PETSC_VIEWER_STDOUT_SELF)); 32 PetscCall(MatDuplicate(C_htransposed, MAT_DO_NOT_COPY_VALUES, &C_empty)); 33 PetscCall(MatView(C_empty, PETSC_VIEWER_STDOUT_SELF)); 34 35 PetscCall(MatDestroy(&C)); 36 PetscCall(MatDestroy(&C_htransposed)); 37 PetscCall(MatDestroy(&Cht)); 38 PetscCall(MatDestroy(&C_empty)); 39 PetscCall(PetscFinalize()); 40 return 0; 41 } 42 43 /*TEST 44 45 build: 46 requires: complex 47 48 test: 49 output_file: output/ex175.out 50 51 TEST*/ 52