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 PetscErrorCode ierr; 15 16 ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr; 17 /* read matrices A, B and C */ 18 CHKERRQ(PetscOptionsGetString(NULL,NULL,"-fA",file[0],sizeof(file[0]),&flg)); 19 PetscCheckFalse(!flg,PETSC_COMM_SELF,PETSC_ERR_USER,"Must indicate binary file with the -fA options"); 20 21 CHKERRQ(PetscOptionsGetString(NULL,NULL,"-fB",file[1],sizeof(file[1]),&flg)); 22 PetscCheckFalse(!flg,PETSC_COMM_SELF,PETSC_ERR_USER,"Must indicate binary file with the -fB options"); 23 24 CHKERRQ(PetscOptionsGetString(NULL,NULL,"-fC",file[2],sizeof(file[2]),&flg)); 25 PetscCheckFalse(!flg,PETSC_COMM_SELF,PETSC_ERR_USER,"Must indicate binary file with the -fC options"); 26 27 /* Load matrices */ 28 CHKERRQ(PetscViewerBinaryOpen(PETSC_COMM_WORLD,file[0],FILE_MODE_READ,&fd)); 29 CHKERRQ(MatCreate(PETSC_COMM_WORLD,&A)); 30 CHKERRQ(MatLoad(A,fd)); 31 CHKERRQ(PetscViewerDestroy(&fd)); 32 33 CHKERRQ(PetscViewerBinaryOpen(PETSC_COMM_WORLD,file[1],FILE_MODE_READ,&fd)); 34 CHKERRQ(MatCreate(PETSC_COMM_WORLD,&B)); 35 CHKERRQ(MatLoad(B,fd)); 36 CHKERRQ(PetscViewerDestroy(&fd)); 37 38 CHKERRQ(PetscViewerBinaryOpen(PETSC_COMM_WORLD,file[2],FILE_MODE_READ,&fd)); 39 CHKERRQ(MatCreate(PETSC_COMM_WORLD,&C)); 40 CHKERRQ(MatLoad(C,fd)); 41 CHKERRQ(PetscViewerDestroy(&fd)); 42 43 /* Test MatMatMult() */ 44 CHKERRQ(MatMatMult(B,C,MAT_INITIAL_MATRIX,PETSC_DEFAULT,&BC)); 45 CHKERRQ(MatMatMult(A,BC,MAT_INITIAL_MATRIX,PETSC_DEFAULT,&ABC)); 46 47 CHKERRQ(MatMatMatMult(A,B,C,MAT_INITIAL_MATRIX,PETSC_DEFAULT,&D)); 48 CHKERRQ(MatMatMatMult(A,B,C,MAT_REUSE_MATRIX,PETSC_DEFAULT,&D)); 49 /* CHKERRQ(MatView(D,PETSC_VIEWER_STDOUT_WORLD)); */ 50 51 CHKERRQ(MatEqual(ABC,D,&flg)); 52 PetscCheckFalse(!flg,PetscObjectComm((PetscObject)A),PETSC_ERR_ARG_INCOMP,"ABC != D"); 53 54 CHKERRQ(MatDestroy(&ABC)); 55 CHKERRQ(MatDestroy(&BC)); 56 CHKERRQ(MatDestroy(&D)); 57 CHKERRQ(MatDestroy(&C)); 58 CHKERRQ(MatDestroy(&B)); 59 CHKERRQ(MatDestroy(&A)); 60 ierr = PetscFinalize(); 61 return ierr; 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