1 2 static char help[] = "Tests MatCreateHermitianTranspose().\n\n"; 3 4 #include <petscmat.h> 5 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; 11 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)); 27 28 PetscCall(MatCreateHermitianTranspose(C, &C_htransposed)); 29 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)); 35 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 } 43 44 /*TEST 45 46 build: 47 requires: complex 48 49 test: 50 output_file: output/ex175.out 51 52 TEST*/ 53