[petsc-users] A bad commit affects MOOSE

[Kong, Fande]

On Mon, Apr 2, 2018 at 4:23 PM, Satish Balay <balay at mcs.anl.gov> wrote:

> Does this 'standard test' use MPI_COMM_WORLD' to crate PETSc objects?
>
> If so - you could try changing to PETSC_COMM_WORLD
>


I do not think we are using PETSC_COMM_WORLD when creating PETSc objects.
Why we can not use MPI_COMM_WORLD?


Fande,


>
> Satish
>
>
> On Mon, 2 Apr 2018, Kong, Fande wrote:
>
> > 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.zampini at gmail.com <stefano.zampini at 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,
> >
>
>
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