1 /* 2 Defines matrix-matrix-matrix product routines for SeqAIJ matrices 3 D = A * B * C 4 */ 5 #include <../src/mat/impls/aij/seq/aij.h> /*I "petscmat.h" I*/ 6 7 #undef __FUNCT__ 8 #define __FUNCT__ "MatDestroy_SeqAIJ_MatMatMatMult" 9 PetscErrorCode MatDestroy_SeqAIJ_MatMatMatMult(Mat A) 10 { 11 Mat_SeqAIJ *a = (Mat_SeqAIJ*)A->data; 12 Mat_MatMatMatMult *matmatmatmult=a->matmatmatmult; 13 PetscErrorCode ierr; 14 15 PetscFunctionBegin; 16 ierr = MatDestroy(&matmatmatmult->BC);CHKERRQ(ierr); 17 ierr = matmatmatmult->destroy(A);CHKERRQ(ierr); 18 ierr = PetscFree(matmatmatmult);CHKERRQ(ierr); 19 PetscFunctionReturn(0); 20 } 21 22 #undef __FUNCT__ 23 #define __FUNCT__ "MatMatMatMult_SeqAIJ_SeqAIJ_SeqAIJ" 24 PetscErrorCode MatMatMatMult_SeqAIJ_SeqAIJ_SeqAIJ(Mat A,Mat B,Mat C,MatReuse scall,PetscReal fill,Mat *D) 25 { 26 PetscErrorCode ierr; 27 28 PetscFunctionBegin; 29 if (scall == MAT_INITIAL_MATRIX) { 30 ierr = PetscLogEventBegin(MAT_MatMatMultSymbolic,A,B,C,0);CHKERRQ(ierr); 31 ierr = MatMatMatMultSymbolic_SeqAIJ_SeqAIJ_SeqAIJ(A,B,C,fill,D);CHKERRQ(ierr); 32 ierr = PetscLogEventEnd(MAT_MatMatMultSymbolic,A,B,C,0);CHKERRQ(ierr); 33 } 34 ierr = PetscLogEventBegin(MAT_MatMatMultNumeric,A,B,C,0);CHKERRQ(ierr); 35 ierr = MatMatMatMultNumeric_SeqAIJ_SeqAIJ_SeqAIJ(A,B,C,*D);CHKERRQ(ierr); 36 ierr = PetscLogEventEnd(MAT_MatMatMultNumeric,A,B,C,0);CHKERRQ(ierr); 37 PetscFunctionReturn(0); 38 } 39 40 #undef __FUNCT__ 41 #define __FUNCT__ "MatMatMatMultSymbolic_SeqAIJ_SeqAIJ_SeqAIJ" 42 PetscErrorCode MatMatMatMultSymbolic_SeqAIJ_SeqAIJ_SeqAIJ(Mat A,Mat B,Mat C,PetscReal fill,Mat *D) 43 { 44 PetscErrorCode ierr; 45 Mat BC; 46 Mat_MatMatMatMult *matmatmatmult; 47 Mat_SeqAIJ *d; 48 PetscBool scalable=PETSC_TRUE; 49 50 PetscFunctionBegin; 51 ierr = PetscObjectOptionsBegin((PetscObject)B);CHKERRQ(ierr); 52 ierr = PetscOptionsBool("-matmatmatmult_scalable","Use a scalable but slower D=A*B*C","",scalable,&scalable,PETSC_NULL);CHKERRQ(ierr); 53 ierr = PetscOptionsEnd();CHKERRQ(ierr); 54 if (scalable) { 55 ierr = MatMatMultSymbolic_SeqAIJ_SeqAIJ_Scalable(B,C,fill,&BC);CHKERRQ(ierr); 56 ierr = MatMatMultSymbolic_SeqAIJ_SeqAIJ_Scalable(A,BC,fill,D);CHKERRQ(ierr); 57 } else { 58 ierr = MatMatMultSymbolic_SeqAIJ_SeqAIJ(B,C,fill,&BC);CHKERRQ(ierr); 59 ierr = MatMatMultSymbolic_SeqAIJ_SeqAIJ(A,BC,fill,D);CHKERRQ(ierr); 60 } 61 62 /* create struct Mat_MatMatMatMult and attached it to *D */ 63 ierr = PetscNew(Mat_MatMatMatMult,&matmatmatmult);CHKERRQ(ierr); 64 matmatmatmult->BC = BC; 65 matmatmatmult->destroy = (*D)->ops->destroy; 66 d = (Mat_SeqAIJ*)(*D)->data; 67 d->matmatmatmult = matmatmatmult; 68 69 (*D)->ops->matmatmultnumeric = MatMatMatMultNumeric_SeqAIJ_SeqAIJ_SeqAIJ; 70 (*D)->ops->destroy = MatDestroy_SeqAIJ_MatMatMatMult; 71 PetscFunctionReturn(0); 72 } 73 74 #undef __FUNCT__ 75 #define __FUNCT__ "MatMatMatMultNumeric_SeqAIJ_SeqAIJ_SeqAIJ" 76 PetscErrorCode MatMatMatMultNumeric_SeqAIJ_SeqAIJ_SeqAIJ(Mat A,Mat B,Mat C,Mat D) 77 { 78 PetscErrorCode ierr; 79 Mat_SeqAIJ *d=(Mat_SeqAIJ*)D->data; 80 Mat_MatMatMatMult *matmatmatmult=d->matmatmatmult; 81 Mat BC= matmatmatmult->BC; 82 83 PetscFunctionBegin; 84 ierr = (BC->ops->matmultnumeric)(B,C,BC);CHKERRQ(ierr); 85 ierr = (D->ops->matmultnumeric)(A,BC,D);CHKERRQ(ierr); 86 PetscFunctionReturn(0); 87 } 88