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 Mat A, B; 6 char file[PETSC_MAX_PATH_LEN]; 7 PetscViewer fd; 8 PetscBool flg, equal; 9 10 PetscFunctionBeginUser; 11 PetscCall(PetscInitialize(&argc, &args, (char *)0, help)); 12 13 /* Load an AIJ matrix */ 14 PetscCall(PetscOptionsGetString(NULL, NULL, "-f", file, sizeof(file), &flg)); 15 PetscCheck(flg, PETSC_COMM_WORLD, PETSC_ERR_USER, "Must indicate binary file with the -f option"); 16 PetscCall(PetscViewerBinaryOpen(PETSC_COMM_WORLD, file, FILE_MODE_READ, &fd)); 17 PetscCall(MatCreate(PETSC_COMM_WORLD, &A)); 18 PetscCall(MatSetFromOptions(A)); 19 PetscCall(MatLoad(A, fd)); 20 21 /* Convert it to MATIS */ 22 PetscCall(MatConvert(A, MATIS, MAT_INITIAL_MATRIX, &B)); 23 24 /* Check they are equal */ 25 PetscCall(MatEqual(A, B, &equal)); 26 PetscCheck(equal, PETSC_COMM_WORLD, PETSC_ERR_PLIB, "A and B are not equal"); 27 28 PetscCall(MatDestroy(&A)); 29 PetscCall(MatDestroy(&B)); 30 PetscCall(PetscViewerDestroy(&fd)); 31 PetscCall(PetscFinalize()); 32 } 33 34 /*TEST 35 test: 36 requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES) 37 args: -mat_type aij -matload_block_size {{1 2}} -f ${DATAFILESPATH}/matrices/smallbs2 38 output_file: output/empty.out 39 40 TEST*/ 41