1 static char help[] = "Tests MatConvert from AIJ to MATIS with a block size greater than 1.\n"; 2 3 #include <petscmat.h> 4 int main(int argc, char **args) 5 { 6 Mat A, B; 7 char file[PETSC_MAX_PATH_LEN]; 8 PetscViewer fd; 9 PetscBool flg, equal; 10 11 PetscFunctionBeginUser; 12 PetscCall(PetscInitialize(&argc, &args, NULL, help)); 13 14 /* Load an AIJ matrix */ 15 PetscCall(PetscOptionsGetString(NULL, NULL, "-f", file, sizeof(file), &flg)); 16 PetscCheck(flg, PETSC_COMM_WORLD, PETSC_ERR_USER, "Must indicate binary file with the -f option"); 17 PetscCall(PetscViewerBinaryOpen(PETSC_COMM_WORLD, file, FILE_MODE_READ, &fd)); 18 PetscCall(MatCreate(PETSC_COMM_WORLD, &A)); 19 PetscCall(MatSetFromOptions(A)); 20 PetscCall(MatLoad(A, fd)); 21 22 /* Convert it to MATIS */ 23 PetscCall(MatConvert(A, MATIS, MAT_INITIAL_MATRIX, &B)); 24 25 /* Check they are equal */ 26 PetscCall(MatEqual(A, B, &equal)); 27 PetscCheck(equal, PETSC_COMM_WORLD, PETSC_ERR_PLIB, "A and B are not equal"); 28 29 PetscCall(MatDestroy(&A)); 30 PetscCall(MatDestroy(&B)); 31 PetscCall(PetscViewerDestroy(&fd)); 32 PetscCall(PetscFinalize()); 33 } 34 35 /*TEST 36 test: 37 requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES) 38 args: -mat_type aij -matload_block_size {{1 2}} -f ${DATAFILESPATH}/matrices/smallbs2 39 output_file: output/empty.out 40 41 TEST*/ 42