1: #define PETSCMAT_DLL

  3: #include <../src/mat/impls/baij/mpi/mpibaij.h>
  4: #include <../src/mat/impls/baij/seq/bstream/bstream.h>

  6: extern PetscErrorCode MatMult_SeqBSTRM_4(Mat,Vec,Vec);
  7: extern PetscErrorCode MatMult_SeqBSTRM_5(Mat,Vec,Vec);
  8: extern PetscErrorCode MatMultAdd_SeqBSTRM_4(Mat,Vec,Vec,Vec);
  9: extern PetscErrorCode MatMultAdd_SeqBSTRM_5(Mat,Vec,Vec,Vec);
 10: extern PetscErrorCode MatSOR_SeqBSTRM_4(Mat,Vec,PetscReal,MatSORType,PetscReal,PetscInt,PetscInt,Vec);
 11: extern PetscErrorCode MatSOR_SeqBSTRM_5(Mat,Vec,PetscReal,MatSORType,PetscReal,PetscInt,PetscInt,Vec);


 16: PetscErrorCode MatMPIBSTRM_create_bstrm(Mat A)
 17: {
 18:   Mat_MPIBAIJ *a   = (Mat_MPIBAIJ*)A->data;
 19:   Mat_SeqBAIJ *Aij = (Mat_SeqBAIJ*)(a->A->data), *Bij = (Mat_SeqBAIJ*)(a->B->data);
 20:   /* */
 21:   Mat_SeqBSTRM *bstrmA, *bstrmB;
 22:   PetscInt     MROW = Aij->mbs, bs = a->A->rmap->bs;
 23:   PetscInt     *ai  = Aij->i, *bi = Bij->i;
 24:   PetscInt     i,j,k;
 25:   PetscScalar  *aa = Aij->a,*ba = Bij->a;

 27:   PetscInt       bs2,  rbs, cbs, slen, blen;
 29:   PetscScalar    **asp;
 30:   PetscScalar    **bsp;

 33:   rbs  = cbs = bs;
 34:   bs2  = bs*bs;
 35:   blen = ai[MROW]-ai[0];
 36:   slen = blen*bs;

 38:   PetscNewLog(a->A,&bstrmA);
 39:   a->A->spptr = (void*) bstrmA;
 40:   bstrmA      = (Mat_SeqBSTRM*) a->A->spptr;
 41:   bstrmA->rbs = bstrmA->cbs = bs;
 42:   PetscMalloc1(bs2*blen, &bstrmA->as);

 44:   PetscMalloc1(rbs, &asp);

 46:   for (i=0; i<rbs; i++) asp[i] = bstrmA->as + i*slen;

 48:   for (k=0; k<blen; k++) {
 49:     for (j=0; j<cbs; j++) {
 50:       for (i=0; i<rbs; i++) asp[i][k*cbs+j] = aa[k*bs2+j*rbs+i];
 51:     }
 52:   }

 54:   switch (bs) {
 55:   case 4:
 56:     a->A->ops->mult = MatMult_SeqBSTRM_4;
 57:     a->A->ops->sor  = MatSOR_SeqBSTRM_4;
 58:     break;
 59:   case 5:
 60:     a->A->ops->mult = MatMult_SeqBSTRM_5;
 61:     a->A->ops->sor  = MatSOR_SeqBSTRM_5;
 62:     break;
 63:   default:
 64:     SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_SUP,"not supported for block size %D yet",bs);
 65:   }
 66:   PetscFree(asp);

 68: /*.....*/
 69:   blen = bi[MROW]-bi[0];
 70:   slen = blen*bs;
 71:   PetscNewLog(a->B,&bstrmB);

 73:   a->B->spptr = (void*) bstrmB;
 74:   bstrmB      = (Mat_SeqBSTRM*) a->B->spptr;
 75:   bstrmB->rbs = bstrmB->cbs = bs;

 77:   PetscMalloc1(bs2*blen, &bstrmB->as);
 78:   PetscMalloc1(rbs, &bsp);

 80:   for (i=0; i<rbs; i++) bsp[i] = bstrmB->as + i*slen;

 82:   for (k=0; k<blen; k++) {
 83:     for (j=0; j<cbs; j++) {
 84:       for (i=0; i<rbs; i++) bsp[i][k*cbs+j] = ba[k*bs2+j*rbs+i];
 85:     }
 86:   }

 88:   switch (bs) {
 89:   case 4:
 90:     a->B->ops->multadd = MatMultAdd_SeqBSTRM_4;
 91:     break;
 92:   case 5:
 93:     a->B->ops->multadd = MatMultAdd_SeqBSTRM_5;
 94:     break;
 95:   default:
 96:     SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_SUP,"not supported for block size %D yet",bs);
 97:   }
 98:   PetscFree(bsp);
 99:   return(0);
100: }

102: extern PetscErrorCode MatAssemblyEnd_MPIBAIJ(Mat,MatAssemblyType);

106: PetscErrorCode MatAssemblyEnd_MPIBSTRM(Mat A, MatAssemblyType mode)
107: {

111:   /*
112:     Aij->inode.use = PETSC_FALSE;
113:     Bij->inode.use = PETSC_FALSE;
114:   */
115:   MatAssemblyEnd_MPIBAIJ(A,mode);
116:   if (mode == MAT_FLUSH_ASSEMBLY) return(0);

118:   /* Now calculate the permutation and grouping information. */
119:   MatMPIBSTRM_create_bstrm(A);
120:   return(0);
121: }


126: PetscErrorCode MatCreateMPIBSTRM(MPI_Comm comm,PetscInt bs,PetscInt m,PetscInt n,PetscInt M,PetscInt N,PetscInt d_nz,const PetscInt d_nnz[],PetscInt o_nz,const PetscInt o_nnz[],Mat *A)
127: {
129:   PetscMPIInt    size;

132:   MatCreate(comm,A);
133:   MatSetSizes(*A,m,n,M,N);
134:   MPI_Comm_size(comm,&size);
135:   if (size > 1) {
136:     MatSetType(*A,MATMPIBSTRM);
137:     MatMPIBAIJSetPreallocation(*A,bs,d_nz,d_nnz,o_nz,o_nnz);
138:   } else {
139:     MatSetType(*A,MATSEQBSTRM);
140:     MatSeqBAIJSetPreallocation(*A,bs,d_nz,d_nnz);
141:   }
142:   return(0);
143: }

145: PETSC_INTERN PetscErrorCode MatConvert_SeqBAIJ_SeqBSTRM(Mat,MatType,MatReuse,Mat*);
146: extern PetscErrorCode MatMPIBAIJSetPreallocation_MPIBAIJ(Mat,PetscInt,PetscInt,const PetscInt *,PetscInt,const PetscInt *);

150: PetscErrorCode MatMPIBAIJSetPreallocation_MPIBSTRM(Mat B,PetscInt bs,PetscInt d_nz,const PetscInt d_nnz[],PetscInt o_nz,const PetscInt o_nnz[])
151: {

155:   MatMPIBAIJSetPreallocation_MPIBAIJ(B,bs,d_nz,d_nnz,o_nz,o_nnz);
156:   return(0);
157: }

161: PETSC_INTERN PetscErrorCode MatConvert_MPIBAIJ_MPIBSTRM(Mat A,MatType type,MatReuse reuse,Mat *newmat)
162: {
164:   Mat            B = *newmat;
165:   Mat_SeqBSTRM   *bstrm;

168:   if (reuse == MAT_INITIAL_MATRIX) {
169:     MatDuplicate(A,MAT_COPY_VALUES,&B);
170:   }

172:   PetscNewLog(B,&bstrm);
173:   B->spptr = (void*) bstrm;

175:   /* Set function pointers for methods that we inherit from AIJ but override.
176:      B->ops->duplicate   = MatDuplicate_BSTRM;
177:      B->ops->mult        = MatMult_BSTRM;
178:      B->ops->destroy     = MatDestroy_MPIBSTRM;
179:   */
180:   B->ops->assemblyend = MatAssemblyEnd_MPIBSTRM;

182:   /* If A has already been assembled, compute the permutation. */
183:   if (A->assembled) {
184:     MatMPIBSTRM_create_bstrm(B);
185:   }

187:   PetscObjectChangeTypeName((PetscObject) B, MATMPIBSTRM);
188:   PetscObjectComposeFunction((PetscObject)B,"MatMPIBAIJSetPreallocation_C",MatMPIBAIJSetPreallocation_MPIBSTRM);
189:   *newmat = B;
190:   return(0);
191: }

195: PETSC_EXTERN PetscErrorCode MatCreate_MPIBSTRM(Mat A)
196: {

200:   MatSetType(A,MATMPIBAIJ);
201:   MatConvert_MPIBAIJ_MPIBSTRM(A,MATMPIBSTRM,MAT_INPLACE_MATRIX,&A);
202:   return(0);
203: }

207: PETSC_EXTERN PetscErrorCode MatCreate_BSTRM(Mat A)
208: {
210:   PetscMPIInt    size;

213:   MPI_Comm_size(PetscObjectComm((PetscObject)A),&size);
214:   if (size == 1) {
215:     MatSetType(A,MATSEQBSTRM);
216:   } else {
217:     MatSetType(A,MATMPIBSTRM);
218:   }
219:   return(0);
220: }