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 ierr = PetscOptionsGetString(NULL,NULL,"-fA",file[0],PETSC_MAX_PATH_LEN,&flg);CHKERRQ(ierr); 19 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Must indicate binary file with the -fA options"); 20 21 ierr = PetscOptionsGetString(NULL,NULL,"-fB",file[1],PETSC_MAX_PATH_LEN,&flg);CHKERRQ(ierr); 22 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Must indicate binary file with the -fB options"); 23 24 ierr = PetscOptionsGetString(NULL,NULL,"-fC",file[2],PETSC_MAX_PATH_LEN,&flg);CHKERRQ(ierr); 25 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Must indicate binary file with the -fC options"); 26 27 /* Load matrices */ 28 ierr = PetscViewerBinaryOpen(PETSC_COMM_WORLD,file[0],FILE_MODE_READ,&fd);CHKERRQ(ierr); 29 ierr = MatCreate(PETSC_COMM_WORLD,&A);CHKERRQ(ierr); 30 ierr = MatLoad(A,fd);CHKERRQ(ierr); 31 ierr = PetscViewerDestroy(&fd);CHKERRQ(ierr); 32 33 ierr = PetscViewerBinaryOpen(PETSC_COMM_WORLD,file[1],FILE_MODE_READ,&fd);CHKERRQ(ierr); 34 ierr = MatCreate(PETSC_COMM_WORLD,&B);CHKERRQ(ierr); 35 ierr = MatLoad(B,fd);CHKERRQ(ierr); 36 ierr = PetscViewerDestroy(&fd);CHKERRQ(ierr); 37 38 ierr = PetscViewerBinaryOpen(PETSC_COMM_WORLD,file[2],FILE_MODE_READ,&fd);CHKERRQ(ierr); 39 ierr = MatCreate(PETSC_COMM_WORLD,&C);CHKERRQ(ierr); 40 ierr = MatLoad(C,fd);CHKERRQ(ierr); 41 ierr = PetscViewerDestroy(&fd);CHKERRQ(ierr); 42 43 /* Test MatMatMult() */ 44 ierr = MatMatMult(B,C,MAT_INITIAL_MATRIX,PETSC_DEFAULT,&BC);CHKERRQ(ierr); 45 ierr = MatMatMult(A,BC,MAT_INITIAL_MATRIX,PETSC_DEFAULT,&ABC);CHKERRQ(ierr); 46 47 ierr = MatMatMatMult(A,B,C,MAT_INITIAL_MATRIX,PETSC_DEFAULT,&D);CHKERRQ(ierr); 48 ierr = MatMatMatMult(A,B,C,MAT_REUSE_MATRIX,PETSC_DEFAULT,&D);CHKERRQ(ierr); 49 /* ierr = MatView(D,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); */ 50 51 ierr = MatEqual(ABC,D,&flg);CHKERRQ(ierr); 52 if (!flg) SETERRQ(PetscObjectComm((PetscObject)A),PETSC_ERR_ARG_INCOMP,"ABC != D"); 53 54 ierr = MatDestroy(&ABC);CHKERRQ(ierr); 55 ierr = MatDestroy(&BC);CHKERRQ(ierr); 56 ierr = MatDestroy(&D);CHKERRQ(ierr); 57 ierr = MatDestroy(&C);CHKERRQ(ierr); 58 ierr = MatDestroy(&B);CHKERRQ(ierr); 59 ierr = MatDestroy(&A);CHKERRQ(ierr); 60 ierr = PetscFinalize(); 61 return ierr; 62 } 63 64 /*TEST 65 66 test: 67 requires: datafilespath !complex double !define(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 !define(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