1*c4762a1bSJed Brown static char help[] = "Test MatNullSpaceTest() with options prefixes.\n\n"; 2*c4762a1bSJed Brown 3*c4762a1bSJed Brown #include <petscmat.h> 4*c4762a1bSJed Brown 5*c4762a1bSJed Brown int main(int argc, char **argv) 6*c4762a1bSJed Brown { 7*c4762a1bSJed Brown Mat mat; 8*c4762a1bSJed Brown MatNullSpace nsp; 9*c4762a1bSJed Brown PetscBool prefix = PETSC_FALSE, flg; 10*c4762a1bSJed Brown PetscErrorCode ierr; 11*c4762a1bSJed Brown PetscInt zero = 0; 12*c4762a1bSJed Brown PetscScalar value = 0; 13*c4762a1bSJed Brown ierr = PetscInitialize(&argc, &argv, NULL, help); if (ierr) return ierr; 14*c4762a1bSJed Brown 15*c4762a1bSJed Brown ierr = PetscOptionsGetBool(NULL, NULL, "-with_prefix",&prefix,NULL);CHKERRQ(ierr); 16*c4762a1bSJed Brown ierr = MatCreateDense(PETSC_COMM_WORLD, 1, 1, 1, 1, NULL, &mat);CHKERRQ(ierr); 17*c4762a1bSJed Brown ierr = MatSetOptionsPrefix(mat, prefix ? "prefix_" : NULL);CHKERRQ(ierr); 18*c4762a1bSJed Brown ierr = MatSetUp(mat);CHKERRQ(ierr); 19*c4762a1bSJed Brown ierr = MatSetValues(mat, 1, &zero, 1, &zero, &value, INSERT_VALUES);CHKERRQ(ierr); 20*c4762a1bSJed Brown ierr = MatAssemblyBegin(mat, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 21*c4762a1bSJed Brown ierr = MatAssemblyEnd(mat, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 22*c4762a1bSJed Brown ierr = MatNullSpaceCreate(PETSC_COMM_WORLD, PETSC_TRUE, 0, NULL, &nsp);CHKERRQ(ierr); 23*c4762a1bSJed Brown ierr = MatNullSpaceTest(nsp, mat, &flg);CHKERRQ(ierr); 24*c4762a1bSJed Brown if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_PLIB,"Null space test failed!"); 25*c4762a1bSJed Brown ierr = MatNullSpaceDestroy(&nsp);CHKERRQ(ierr); 26*c4762a1bSJed Brown ierr = MatDestroy(&mat);CHKERRQ(ierr); 27*c4762a1bSJed Brown ierr = PetscFinalize(); 28*c4762a1bSJed Brown return ierr; 29*c4762a1bSJed Brown } 30*c4762a1bSJed Brown 31*c4762a1bSJed Brown /*TEST 32*c4762a1bSJed Brown 33*c4762a1bSJed Brown test: 34*c4762a1bSJed Brown suffix: no_prefix 35*c4762a1bSJed Brown output_file: output/ex227_no_prefix.out 36*c4762a1bSJed Brown args: -mat_null_space_test_view -mat_view 37*c4762a1bSJed Brown 38*c4762a1bSJed Brown test: 39*c4762a1bSJed Brown suffix: prefix 40*c4762a1bSJed Brown output_file: output/ex227_prefix.out 41*c4762a1bSJed Brown args: -prefix_mat_null_space_test_view -with_prefix -prefix_mat_view 42*c4762a1bSJed Brown 43*c4762a1bSJed Brown TEST*/ 44