3744   Mat         M, Mreuse;  in MatCreateSubMatrix_MPIAIJ_nonscalable()  local
3762     PetscCall(PetscObjectQuery((PetscObject)*newmat, "SubMatrix", (PetscObject *)&Mreuse));  in MatCreateSubMatrix_MPIAIJ_nonscalable()
3763 …PetscCheck(Mreuse, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONGSTATE, "Submatrix passed in was not used be…  in MatCreateSubMatrix_MPIAIJ_nonscalable()
3764 …eSubMatrices_MPIAIJ_SingleIS_Local(mat, 1, &isrow, &iscol, MAT_REUSE_MATRIX, allcolumns, &Mreuse));  in MatCreateSubMatrix_MPIAIJ_nonscalable()
3766 …ubMatrices_MPIAIJ_SingleIS_Local(mat, 1, &isrow, &iscol, MAT_INITIAL_MATRIX, allcolumns, &Mreuse));  in MatCreateSubMatrix_MPIAIJ_nonscalable()
3774   PetscCall(MatGetSize(Mreuse, &m, &n));  in MatCreateSubMatrix_MPIAIJ_nonscalable()
3775   PetscCall(MatGetBlockSizes(Mreuse, &bs, &cbs));  in MatCreateSubMatrix_MPIAIJ_nonscalable()
3777     aij = (Mat_SeqAIJ *)Mreuse->data;  in MatCreateSubMatrix_MPIAIJ_nonscalable()
3837   aij = (Mat_SeqAIJ *)Mreuse->data;  in MatCreateSubMatrix_MPIAIJ_nonscalable()
3842   PetscCall(MatSeqAIJGetArrayRead(Mreuse, (const PetscScalar **)&aa));  in MatCreateSubMatrix_MPIAIJ_nonscalable()
3852   PetscCall(MatSeqAIJRestoreArrayRead(Mreuse, (const PetscScalar **)&aa));  in MatCreateSubMatrix_MPIAIJ_nonscalable()
3860     PetscCall(PetscObjectCompose((PetscObject)M, "SubMatrix", (PetscObject)Mreuse));  in MatCreateSubMatrix_MPIAIJ_nonscalable()
3861     PetscCall(MatDestroy(&Mreuse));  in MatCreateSubMatrix_MPIAIJ_nonscalable()