static char help[] = "Tests MatSeq(B)AIJSetColumnIndices().\n\n"; #include /* Generate the following matrix: 1 0 3 1 2 3 0 0 3 */ int main(int argc,char **args) { Mat A; PetscScalar v; PetscErrorCode ierr; PetscInt i,j,rowlens[] = {2,3,1},cols[] = {0,2,0,1,2,2}; PetscBool flg; ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr; CHKERRQ(PetscOptionsHasName(NULL,NULL,"-baij",&flg)); if (flg) { CHKERRQ(MatCreateSeqBAIJ(PETSC_COMM_WORLD,1,3,3,0,rowlens,&A)); CHKERRQ(MatSeqBAIJSetColumnIndices(A,cols)); } else { CHKERRQ(MatCreateSeqAIJ(PETSC_COMM_WORLD,3,3,0,rowlens,&A)); CHKERRQ(MatSeqAIJSetColumnIndices(A,cols)); } i = 0; j = 0; v = 1.0; CHKERRQ(MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES)); i = 0; j = 2; v = 3.0; CHKERRQ(MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES)); i = 1; j = 0; v = 1.0; CHKERRQ(MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES)); i = 1; j = 1; v = 2.0; CHKERRQ(MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES)); i = 1; j = 2; v = 3.0; CHKERRQ(MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES)); i = 2; j = 2; v = 3.0; CHKERRQ(MatSetValues(A,1,&i,1,&j,&v,INSERT_VALUES)); CHKERRQ(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY)); CHKERRQ(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY)); CHKERRQ(MatView(A,PETSC_VIEWER_STDOUT_WORLD)); CHKERRQ(MatDestroy(&A)); ierr = PetscFinalize(); return ierr; } /*TEST test: test: suffix: 2 args: -baij TEST*/