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*9566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc, &argv, NULL, help)); 13c4762a1bSJed Brown 14*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetBool(NULL, NULL, "-with_prefix",&prefix,NULL)); 15*9566063dSJacob Faibussowitsch PetscCall(MatCreateDense(PETSC_COMM_WORLD, 1, 1, 1, 1, NULL, &mat)); 16*9566063dSJacob Faibussowitsch PetscCall(MatSetOptionsPrefix(mat, prefix ? "prefix_" : NULL)); 17*9566063dSJacob Faibussowitsch PetscCall(MatSetUp(mat)); 18*9566063dSJacob Faibussowitsch PetscCall(MatSetValues(mat, 1, &zero, 1, &zero, &value, INSERT_VALUES)); 19*9566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(mat, MAT_FINAL_ASSEMBLY)); 20*9566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(mat, MAT_FINAL_ASSEMBLY)); 21*9566063dSJacob Faibussowitsch PetscCall(MatNullSpaceCreate(PETSC_COMM_WORLD, PETSC_TRUE, 0, NULL, &nsp)); 22*9566063dSJacob Faibussowitsch PetscCall(MatNullSpaceTest(nsp, mat, &flg)); 2328b400f6SJacob Faibussowitsch PetscCheck(flg,PETSC_COMM_WORLD,PETSC_ERR_PLIB,"Null space test failed!"); 24*9566063dSJacob Faibussowitsch PetscCall(MatNullSpaceDestroy(&nsp)); 25*9566063dSJacob Faibussowitsch PetscCall(MatDestroy(&mat)); 26*9566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 27b122ec5aSJacob Faibussowitsch return 0; 28c4762a1bSJed Brown } 29c4762a1bSJed Brown 30c4762a1bSJed Brown /*TEST 31c4762a1bSJed Brown 32c4762a1bSJed Brown test: 33c4762a1bSJed Brown suffix: no_prefix 34c4762a1bSJed Brown output_file: output/ex227_no_prefix.out 35c4762a1bSJed Brown args: -mat_null_space_test_view -mat_view 36c4762a1bSJed Brown 37c4762a1bSJed Brown test: 38c4762a1bSJed Brown suffix: prefix 39c4762a1bSJed Brown output_file: output/ex227_prefix.out 40c4762a1bSJed Brown args: -prefix_mat_null_space_test_view -with_prefix -prefix_mat_view 41c4762a1bSJed Brown 42c4762a1bSJed Brown TEST*/ 43