641   PetscBool              flg, ismpiaij, ismpibaij, was_inplace = PETSC_FALSE, cong;  in MatConvert_XAIJ_IS()  local
652   PetscCall(MatHasCongruentLayouts(A, &cong));  in MatConvert_XAIJ_IS()
653   if (reuse != MAT_REUSE_MATRIX && cong && rbs == cbs) {  in MatConvert_XAIJ_IS()
1421     PetscBool              cong;  in MatCreateSubMatrix_IS()  local
1463     PetscCall(MatHasCongruentLayouts(mat, &cong));  in MatCreateSubMatrix_IS()
1464     if (cong && irow == icol && matis->csf == matis->sf) {  in MatCreateSubMatrix_IS()
2666   PetscBool              cong, freem[] = {PETSC_FALSE, PETSC_FALSE};  in MatSetLocalToGlobalMapping_IS()  local
2676   PetscCall(MatHasCongruentLayouts(A, &cong));  in MatSetLocalToGlobalMapping_IS()
2687     if (!cmapping && cong && A->rmap->bs == A->cmap->bs) cmapping = rmapping;  in MatSetLocalToGlobalMapping_IS()
2736   if (is->rmapping != is->cmapping && cong) {  in MatSetLocalToGlobalMapping_IS()
2890     PetscBool cong;  in MatZeroRowsColumns_Private_IS()  local
2892     PetscCall(PetscLayoutCompare(A->rmap, A->cmap, &cong));  in MatZeroRowsColumns_Private_IS()
2893     cong = (PetscBool)(cong && matis->sf == matis->csf);  in MatZeroRowsColumns_Private_IS()
2894 …PetscCheck(cong || !columns, PetscObjectComm((PetscObject)A), PETSC_ERR_SUP, "Columns can be zeroe…  in MatZeroRowsColumns_Private_IS()
2895 …PetscCheck(cong || diag == 0., PetscObjectComm((PetscObject)A), PETSC_ERR_SUP, "Nonzero diagonal v…  in MatZeroRowsColumns_Private_IS()
2896 …PetscCheck(cong || !x || !b, PetscObjectComm((PetscObject)A), PETSC_ERR_SUP, "A->rmap and A->cmap …  in MatZeroRowsColumns_Private_IS()