[mvapich-discuss] using MVAPICH2 with other launchers

[Jonathan Perkins]

Jeff:
I believe Jiri nailed it.  As far as launching goes the only
requirements are that the launcher supports PMI1 or PMI2 if you built
using --with-pmi=pmi2.

Affinity is one thing you need to look out for.  If the launcher handles
it itself you'll want to avoid the library trying to set it as well by
setting MV2_ENABLE_AFFINITY to 0.

On Thu, Jan 29, 2015 at 08:55:42AM +0000, Jiri Kraus wrote:
> Hi Jeff,
> 
> I have been using MVAPICH2 successfully with the MPICH compatible launcher from Parastation MPI. Besides avoid conflicting thread/process pinning environment variables from MVAPICH2 and the Parastation MPI, which you want to avoid, launcher there was nothing special. 
> 
> Jiri
> 
> > -----Original Message-----
> > From: mvapich-discuss [mailto:mvapich-discuss-bounces at cse.ohio-state.edu]
> > On Behalf Of Jeff Hammond
> > Sent: Mittwoch, 28. Januar 2015 23:51
> > To: mvapich-discuss
> > Subject: [mvapich-discuss] using MVAPICH2 with other launchers
> > 
> > If I want to launch an MVAPICH2 binary with another launcher from the MPICH
> > family, what environment variables do I need to set manually to make this
> > work?  I know this is outside of the fully supported regime, but I figure it is
> > something that your team will have ideas on how to do.
> > 
> > The reason I ask is that we have tools that are already setup to use another
> > launcher and we'd like to not have to reconfigure them if there is a simple
> > workaround.
> > 
> > Thanks!
> > 
> > Jeff
> > 
> > --
> > Jeff Hammond
> > jeff.science at gmail.com
> > http://jeffhammond.github.io/
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-- 
Jonathan Perkins