1ae8d29abSPierre Jolivet #include <../src/mat/impls/baij/mpi/mpibaij.h> /*I "petscmat.h" I*/ 2ae8d29abSPierre Jolivet #include <../src/mat/impls/aij/mpi/mpiaij.h> 3ae8d29abSPierre Jolivet #include <petsc/private/matimpl.h> 4ae8d29abSPierre Jolivet #include <petscmat.h> 5ae8d29abSPierre Jolivet 6247fa90bSBarry Smith PETSC_INTERN PetscErrorCode MatConvert_SeqAIJ_SeqBAIJ_Preallocate(Mat, PetscInt **); 7247fa90bSBarry Smith 8d71ae5a4SJacob Faibussowitsch PETSC_INTERN PetscErrorCode MatConvert_MPIAIJ_MPIBAIJ(Mat A, MatType newtype, MatReuse reuse, Mat *newmat) 9d71ae5a4SJacob Faibussowitsch { 10ae8d29abSPierre Jolivet Mat M; 11ae8d29abSPierre Jolivet Mat_MPIAIJ *mpimat = (Mat_MPIAIJ *)A->data; 12ae8d29abSPierre Jolivet PetscInt *d_nnz, *o_nnz; 1358b7e2c1SStefano Zampini PetscInt m, n, lm, ln, bs = A->rmap->bs; 14*b91bea6bSPierre Jolivet PetscBool flg = PETSC_FALSE; 15ae8d29abSPierre Jolivet 16ae8d29abSPierre Jolivet PetscFunctionBegin; 17ae8d29abSPierre Jolivet if (reuse != MAT_REUSE_MATRIX) { 18247fa90bSBarry Smith PetscBool3 sym = A->symmetric, hermitian = A->hermitian, structurally_symmetric = A->structurally_symmetric, spd = A->spd; 19eb14dd14SAlex Lindsay PetscCall(MatDisAssemble_MPIAIJ(A, PETSC_FALSE)); 209566063dSJacob Faibussowitsch PetscCall(MatGetSize(A, &m, &n)); 219566063dSJacob Faibussowitsch PetscCall(MatGetLocalSize(A, &lm, &ln)); 22247fa90bSBarry Smith PetscCall(MatConvert_SeqAIJ_SeqBAIJ_Preallocate(mpimat->A, &d_nnz)); 23247fa90bSBarry Smith PetscCall(MatConvert_SeqAIJ_SeqBAIJ_Preallocate(mpimat->B, &o_nnz)); 249566063dSJacob Faibussowitsch PetscCall(MatCreate(PetscObjectComm((PetscObject)A), &M)); 259566063dSJacob Faibussowitsch PetscCall(MatSetSizes(M, lm, ln, m, n)); 269566063dSJacob Faibussowitsch PetscCall(MatSetType(M, MATMPIBAIJ)); 279566063dSJacob Faibussowitsch PetscCall(MatSeqBAIJSetPreallocation(M, bs, 0, d_nnz)); 289566063dSJacob Faibussowitsch PetscCall(MatMPIBAIJSetPreallocation(M, bs, 0, d_nnz, 0, o_nnz)); 29247fa90bSBarry Smith PetscCall(PetscFree(d_nnz)); 30247fa90bSBarry Smith PetscCall(PetscFree(o_nnz)); 31*b91bea6bSPierre Jolivet PetscCall(MatSetOption(A, MAT_NO_OFF_PROC_ENTRIES, PETSC_TRUE)); 32247fa90bSBarry Smith PetscCall(MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY)); 33247fa90bSBarry Smith PetscCall(MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY)); 34*b91bea6bSPierre Jolivet PetscCall(MatSetOption(A, MAT_NO_OFF_PROC_ENTRIES, PETSC_FALSE)); 35247fa90bSBarry Smith A->symmetric = sym; 36247fa90bSBarry Smith A->hermitian = hermitian; 37247fa90bSBarry Smith A->structurally_symmetric = structurally_symmetric; 38247fa90bSBarry Smith A->spd = spd; 39*b91bea6bSPierre Jolivet } else { 40*b91bea6bSPierre Jolivet M = *newmat; 41*b91bea6bSPierre Jolivet PetscCall(MatGetOption(M, MAT_NO_OFF_PROC_ENTRIES, &flg)); 42*b91bea6bSPierre Jolivet } 43ae8d29abSPierre Jolivet 44ae8d29abSPierre Jolivet /* reuse may not be equal to MAT_REUSE_MATRIX, but the basic converter will reallocate or replace newmat if this value is not used */ 45ae8d29abSPierre Jolivet /* if reuse is equal to MAT_INITIAL_MATRIX, it has been appropriately preallocated before */ 46ae8d29abSPierre Jolivet /* MAT_INPLACE_MATRIX, it will be replaced with MatHeaderReplace below */ 47*b91bea6bSPierre Jolivet PetscCall(MatSetOption(M, MAT_NO_OFF_PROC_ENTRIES, PETSC_TRUE)); 489566063dSJacob Faibussowitsch PetscCall(MatConvert_Basic(A, newtype, MAT_REUSE_MATRIX, &M)); 49*b91bea6bSPierre Jolivet PetscCall(MatSetOption(M, MAT_NO_OFF_PROC_ENTRIES, flg)); 50ae8d29abSPierre Jolivet 51ac530a7eSPierre Jolivet if (reuse == MAT_INPLACE_MATRIX) PetscCall(MatHeaderReplace(A, &M)); 52ac530a7eSPierre Jolivet else *newmat = M; 533ba16761SJacob Faibussowitsch PetscFunctionReturn(PETSC_SUCCESS); 54ae8d29abSPierre Jolivet } 55