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 PetscErrorCode ierr; 11c4762a1bSJed Brown PetscInt zero = 0; 12c4762a1bSJed Brown PetscScalar value = 0; 13c4762a1bSJed Brown ierr = PetscInitialize(&argc, &argv, NULL, help); if (ierr) return ierr; 14c4762a1bSJed Brown 15c4762a1bSJed Brown ierr = PetscOptionsGetBool(NULL, NULL, "-with_prefix",&prefix,NULL);CHKERRQ(ierr); 16c4762a1bSJed Brown ierr = MatCreateDense(PETSC_COMM_WORLD, 1, 1, 1, 1, NULL, &mat);CHKERRQ(ierr); 17c4762a1bSJed Brown ierr = MatSetOptionsPrefix(mat, prefix ? "prefix_" : NULL);CHKERRQ(ierr); 18c4762a1bSJed Brown ierr = MatSetUp(mat);CHKERRQ(ierr); 19c4762a1bSJed Brown ierr = MatSetValues(mat, 1, &zero, 1, &zero, &value, INSERT_VALUES);CHKERRQ(ierr); 20c4762a1bSJed Brown ierr = MatAssemblyBegin(mat, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 21c4762a1bSJed Brown ierr = MatAssemblyEnd(mat, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 22c4762a1bSJed Brown ierr = MatNullSpaceCreate(PETSC_COMM_WORLD, PETSC_TRUE, 0, NULL, &nsp);CHKERRQ(ierr); 23c4762a1bSJed Brown ierr = MatNullSpaceTest(nsp, mat, &flg);CHKERRQ(ierr); 24*2c71b3e2SJacob Faibussowitsch PetscCheckFalse(!flg,PETSC_COMM_WORLD,PETSC_ERR_PLIB,"Null space test failed!"); 25c4762a1bSJed Brown ierr = MatNullSpaceDestroy(&nsp);CHKERRQ(ierr); 26c4762a1bSJed Brown ierr = MatDestroy(&mat);CHKERRQ(ierr); 27c4762a1bSJed Brown ierr = PetscFinalize(); 28c4762a1bSJed Brown return ierr; 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