maybe this will fix ?
*diff --git a/src/ksp/pc/impls/hypre/hypre.c
b/src/ksp/pc/impls/hypre/hypre.c*
*index 28addcf533..6a756d4c57 100644*
*--- a/src/ksp/pc/impls/hypre/hypre.c*
*+++ b/src/ksp/pc/impls/hypre/hypre.c*
@@ -142,8 +142,7 @@ static PetscErrorCode PCSetUp_HYPRE(PC pc)
ierr =
PetscObjectTypeCompare((PetscObject)pc->pmat,MATHYPRE,&ishypre);CHKERRQ(ierr);
if (!ishypre) {
- ierr = MatDestroy(&jac->hpmat);CHKERRQ(ierr);
- ierr =
MatConvert(pc->pmat,MATHYPRE,MAT_INITIAL_MATRIX,&jac->hpmat);CHKERRQ(ierr);
+ ierr = MatConvert(pc->pmat,MATHYPRE,jac->hpmat ? MAT_REUSE_MATRIX :
MAT_INITIAL_MATRIX,&jac->hpmat);CHKERRQ(ierr);
} else {
ierr = PetscObjectReference((PetscObject)pc->pmat);CHKERRQ(ierr);
ierr = MatDestroy(&jac->hpmat);CHKERRQ(ierr);
2018-04-02 23:46 GMT+02:00 Kong, Fande <fande.k...@inl.gov>:
> Hi All,
>
> I am trying to upgrade PETSc from 3.7.6 to 3.8.3 for MOOSE and its
> applications. I have a error message for a standard test:
>
>
>
>
>
>
>
>
>
> *preconditioners/pbp.lots_of_variables: MPI had an
> errorpreconditioners/pbp.lots_of_variables:
> ------------------------------------------------preconditioners/pbp.lots_of_variables:
> Other MPI error, error stack:preconditioners/pbp.lots_of_variables:
> PMPI_Comm_dup(177)..................: MPI_Comm_dup(comm=0x84000001,
> new_comm=0x97d1068) failedpreconditioners/pbp.lots_of_variables:
> PMPI_Comm_dup(162)..................:
> preconditioners/pbp.lots_of_variables:
> MPIR_Comm_dup_impl(57)..............:
> preconditioners/pbp.lots_of_variables:
> MPIR_Comm_copy(739).................:
> preconditioners/pbp.lots_of_variables:
> MPIR_Get_contextid_sparse_group(614): Too many communicators (0/2048 free
> on this process; ignore_id=0)*
>
>
> I did "git bisect', and the following commit introduces this issue:
>
>
>
>
>
>
>
>
> *commit 49a781f5cee36db85e8d5b951eec29f10ac13593Author: Stefano Zampini
> <stefano.zamp...@gmail.com <stefano.zamp...@gmail.com>>Date: Sat Nov 5
> 20:15:19 2016 +0300 PCHYPRE: use internal Mat of type MatHYPRE
> hpmat already stores two HYPRE vectors*
>
> Before I debug line-by-line, anyone has a clue on this?
>
>
> Fande,
>
--
Stefano
