1 static char help[] = "Test MatMatMatMult\n\ 2 Reads PETSc matrix A B and C, then comput D=A*B*C \n\ 3 Input parameters include\n\ 4 -fA <input_file> -fB <input_file> -fC <input_file> \n\n"; 5 6 #include <petscmat.h> 7 8 int main(int argc, char **args) 9 { 10 Mat A, B, C, D, BC, ABC; 11 PetscViewer fd; 12 char file[3][PETSC_MAX_PATH_LEN]; 13 PetscBool flg; 14 15 PetscFunctionBeginUser; 16 PetscCall(PetscInitialize(&argc, &args, (char *)0, help)); 17 /* read matrices A, B and C */ 18 PetscCall(PetscOptionsGetString(NULL, NULL, "-fA", file[0], sizeof(file[0]), &flg)); 19 PetscCheck(flg, PETSC_COMM_SELF, PETSC_ERR_USER, "Must indicate binary file with the -fA options"); 20 21 PetscCall(PetscOptionsGetString(NULL, NULL, "-fB", file[1], sizeof(file[1]), &flg)); 22 PetscCheck(flg, PETSC_COMM_SELF, PETSC_ERR_USER, "Must indicate binary file with the -fB options"); 23 24 PetscCall(PetscOptionsGetString(NULL, NULL, "-fC", file[2], sizeof(file[2]), &flg)); 25 PetscCheck(flg, PETSC_COMM_SELF, PETSC_ERR_USER, "Must indicate binary file with the -fC options"); 26 27 /* Load matrices */ 28 PetscCall(PetscViewerBinaryOpen(PETSC_COMM_WORLD, file[0], FILE_MODE_READ, &fd)); 29 PetscCall(MatCreate(PETSC_COMM_WORLD, &A)); 30 PetscCall(MatLoad(A, fd)); 31 PetscCall(PetscViewerDestroy(&fd)); 32 33 PetscCall(PetscViewerBinaryOpen(PETSC_COMM_WORLD, file[1], FILE_MODE_READ, &fd)); 34 PetscCall(MatCreate(PETSC_COMM_WORLD, &B)); 35 PetscCall(MatLoad(B, fd)); 36 PetscCall(PetscViewerDestroy(&fd)); 37 38 PetscCall(PetscViewerBinaryOpen(PETSC_COMM_WORLD, file[2], FILE_MODE_READ, &fd)); 39 PetscCall(MatCreate(PETSC_COMM_WORLD, &C)); 40 PetscCall(MatLoad(C, fd)); 41 PetscCall(PetscViewerDestroy(&fd)); 42 43 /* Test MatMatMult() */ 44 PetscCall(MatMatMult(B, C, MAT_INITIAL_MATRIX, PETSC_DEFAULT, &BC)); 45 PetscCall(MatMatMult(A, BC, MAT_INITIAL_MATRIX, PETSC_DEFAULT, &ABC)); 46 47 PetscCall(MatMatMatMult(A, B, C, MAT_INITIAL_MATRIX, PETSC_DEFAULT, &D)); 48 PetscCall(MatMatMatMult(A, B, C, MAT_REUSE_MATRIX, PETSC_DEFAULT, &D)); 49 /* PetscCall(MatView(D,PETSC_VIEWER_STDOUT_WORLD)); */ 50 51 PetscCall(MatEqual(ABC, D, &flg)); 52 PetscCheck(flg, PetscObjectComm((PetscObject)A), PETSC_ERR_ARG_INCOMP, "ABC != D"); 53 54 PetscCall(MatDestroy(&ABC)); 55 PetscCall(MatDestroy(&BC)); 56 PetscCall(MatDestroy(&D)); 57 PetscCall(MatDestroy(&C)); 58 PetscCall(MatDestroy(&B)); 59 PetscCall(MatDestroy(&A)); 60 PetscCall(PetscFinalize()); 61 return 0; 62 } 63 64 /*TEST 65 66 test: 67 requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES) 68 args: -fA ${DATAFILESPATH}/matrices/matmatmatmult/A.bin -fB ${DATAFILESPATH}/matrices/matmatmatmult/B.bin -fC ${DATAFILESPATH}/matrices/matmatmatmult/C.bin 69 output_file: output/ex198.out 70 71 test: 72 suffix: 2 73 nsize: 3 74 requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES) 75 args: -fA ${DATAFILESPATH}/matrices/matmatmatmult/A.bin -fB ${DATAFILESPATH}/matrices/matmatmatmult/B.bin -fC ${DATAFILESPATH}/matrices/matmatmatmult/C.bin 76 output_file: output/ex198.out 77 78 TEST*/ 79