[mpich-discuss] Oversubscription with Nemesis

[Pavan Balaji]

Jed,

We are aware of the need for this.  Unfortunately, we are all working 
heads down on MPI-3, and we don't really have the bandwidth to get to 
this before the MPI-3 implementation is out.

  -- Pavan

On 09/11/2012 02:11 PM, Jed Brown wrote:
> I know this has been filed as a ticket, but it seems to be postponed
> quasi-indefinitely at this point.
>
> http://trac.mcs.anl.gov/projects/mpich2/ticket/79
>
> I'd like to emphasize that over-subscription is extremely commonly used
> during initial development and method experimentation (not performance
> studies, obviously) and consequently, PETSc continues to use ch3:sock as
> the default for new installs (via --download-mpich, which is used by a
> large fraction of PETSc users). It appears that you are trying to wean
> the community off of sock in favor of nemesis, but as long as this bug
> is not fixed, you will continue to get thousands of new sock installs.
>
>
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-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji