1c4762a1bSJed Brown static char help[] = "Test MatNullSpaceTest() with options prefixes.\n\n"; 2c4762a1bSJed Brown 3c4762a1bSJed Brown #include <petscmat.h> 4c4762a1bSJed Brown 5c4762a1bSJed Brown int main(int argc, char **argv) 6c4762a1bSJed Brown { 7c4762a1bSJed Brown Mat mat; 8c4762a1bSJed Brown MatNullSpace nsp; 9c4762a1bSJed Brown PetscBool prefix = PETSC_FALSE, flg; 10c4762a1bSJed Brown PetscInt zero = 0; 11c4762a1bSJed Brown PetscScalar value = 0; 12*327415f7SBarry Smith PetscFunctionBeginUser; 139566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc, &argv, NULL, help)); 14c4762a1bSJed Brown 159566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetBool(NULL, NULL, "-with_prefix",&prefix,NULL)); 169566063dSJacob Faibussowitsch PetscCall(MatCreateDense(PETSC_COMM_WORLD, 1, 1, 1, 1, NULL, &mat)); 179566063dSJacob Faibussowitsch PetscCall(MatSetOptionsPrefix(mat, prefix ? "prefix_" : NULL)); 189566063dSJacob Faibussowitsch PetscCall(MatSetUp(mat)); 199566063dSJacob Faibussowitsch PetscCall(MatSetValues(mat, 1, &zero, 1, &zero, &value, INSERT_VALUES)); 209566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(mat, MAT_FINAL_ASSEMBLY)); 219566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(mat, MAT_FINAL_ASSEMBLY)); 229566063dSJacob Faibussowitsch PetscCall(MatNullSpaceCreate(PETSC_COMM_WORLD, PETSC_TRUE, 0, NULL, &nsp)); 239566063dSJacob Faibussowitsch PetscCall(MatNullSpaceTest(nsp, mat, &flg)); 2428b400f6SJacob Faibussowitsch PetscCheck(flg,PETSC_COMM_WORLD,PETSC_ERR_PLIB,"Null space test failed!"); 259566063dSJacob Faibussowitsch PetscCall(MatNullSpaceDestroy(&nsp)); 269566063dSJacob Faibussowitsch PetscCall(MatDestroy(&mat)); 279566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 28b122ec5aSJacob Faibussowitsch return 0; 29c4762a1bSJed Brown } 30c4762a1bSJed Brown 31c4762a1bSJed Brown /*TEST 32c4762a1bSJed Brown 33c4762a1bSJed Brown test: 34c4762a1bSJed Brown suffix: no_prefix 35c4762a1bSJed Brown output_file: output/ex227_no_prefix.out 36c4762a1bSJed Brown args: -mat_null_space_test_view -mat_view 37c4762a1bSJed Brown 38c4762a1bSJed Brown test: 39c4762a1bSJed Brown suffix: prefix 40c4762a1bSJed Brown output_file: output/ex227_prefix.out 41c4762a1bSJed Brown args: -prefix_mat_null_space_test_view -with_prefix -prefix_mat_view 42c4762a1bSJed Brown 43c4762a1bSJed Brown TEST*/ 44