[mvapich-discuss] mvapich2-1.2p1 program hang

[Ting-jen Yen]

Hi, Matt,

  Thanks a lot, it is working now after I added this parameter.

-- Ting-jen

¦b ¤G, 2009-05-26 16:53, Matthew Koop ¼g¹D¡G
> Ting-jen,
> 
> Can you try added MV2_USE_SRQ=0 when running on a single node? If this
> works, then we already have a fix for this issue queued for the next
> release of MVAPICH2.
> 
> Matt
> 
> 
> On Tue, 26 May 2009, Ting-jen Yen wrote:
> 
> >
> > I have some problem when running MPI programs using mvapich2-1.2p1.
> >
> > A program is running fine when it is using more than one nodes.
> > However, if it is using only one node, (that is, 4 cpu cores or 8 cpu
> > cores, for example,) it would sometimes stop at MPI_Finalize(), and hang
> > there forever.  I have tried various programs, even the "hello world"
> > example, with similar results. (This does not always happen. Sometimes,
> > the programs run and finish just fine.)
> >
> > The system is a cluster of more than 80 IBM blade, each with 2 quad
> > core Xeon E5355 (that is, 8 CPU core per node).  The OS is RHEL 4
> > update 4, and the InfiniBand driver used is OFED 1.3.
> >
> > The mvapich2 was compiled using Intel compiler, with no explicit RDMA
> > option, which should mean "gen2" by default.
> >
> > Any idea what could cause this problem?
> >
> > Thanks,
> > Ting-jen
> >
> >
> > _______________________________________________
> > mvapich-discuss mailing list
> > mvapich-discuss at cse.ohio-state.edu
> > http://mail.cse.ohio-state.edu/mailman/listinfo/mvapich-discuss
> >
> 
>