1 2 static char help[] = "Test saving SeqSBAIJ matrix that is missing diagonal entries."; 3 4 #include <petscmat.h> 5 6 int main(int argc,char **args) 7 { 8 Mat A; 9 PetscInt bs=3,m=4,i,j,val = 10,row[2],col[3],rstart; 10 PetscErrorCode ierr; 11 PetscMPIInt size; 12 PetscScalar x[6][9]; 13 14 ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr; 15 CHKERRMPI(MPI_Comm_size(PETSC_COMM_WORLD,&size)); 16 PetscCheckFalse(size > 1,PETSC_COMM_WORLD,PETSC_ERR_SUP,"Test is only for sequential"); 17 CHKERRQ(MatCreateSeqSBAIJ(PETSC_COMM_SELF,bs,m*bs,m*bs,1,NULL,&A)); 18 CHKERRQ(MatSetOption(A,MAT_IGNORE_LOWER_TRIANGULAR,PETSC_TRUE)); 19 rstart = 0; 20 21 row[0] =rstart+0; row[1] =rstart+2; 22 col[0] =rstart+0; col[1] =rstart+1; col[2] =rstart+3; 23 for (i=0; i<6; i++) { 24 for (j =0; j< 9; j++) x[i][j] = (PetscScalar)val++; 25 } 26 CHKERRQ(MatSetValuesBlocked(A,2,row,3,col,&x[0][0],INSERT_VALUES)); 27 CHKERRQ(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY)); 28 CHKERRQ(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY)); 29 CHKERRQ(MatView(A,PETSC_VIEWER_BINARY_WORLD)); 30 31 CHKERRQ(MatDestroy(&A)); 32 ierr = PetscFinalize(); 33 return ierr; 34 } 35