[petsc-users] A bad commit affects MOOSE

[Satish Balay]

Does this 'standard test' use MPI_COMM_WORLD' to crate PETSc objects?

If so - you could try changing to PETSC_COMM_WORLD

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,
>