[mpich-discuss] Hydra launching on CPU+MIC?

[Dave Goodell]

Can't you do something like this?

----8<----
host-hostname:16
mic-hostname:60
----8<----

http://wiki.mpich.org/mpich/index.php/Using_the_Hydra_Process_Manager

-Dave

On Mar 4, 2013, at 10:34 AM CST, Jeff Hammond wrote:

> Hmm, I was hoping to not have to manually create a hostfile that
> contained 16 copies of the host IP and 60 copies of the MIC IP.
> 
> Jeff
> 
> On Mon, Mar 4, 2013 at 10:16 AM, Pavan Balaji <balaji at mcs.anl.gov> wrote:
>> 
>> Just give the IP address of the MIC card as one of the hosts.
>> 
>> -- Pavan
>> 
>> On 03/04/2013 09:06 AM US Central Time, Jeff Hammond wrote:
>>> Is there documentation somewhere for how to launch Nh MPI processes on
>>> the host and Nm MPI processes on the MIC using Hydra?  TACC told me
>>> that Intel MPI's Hydra supports this so I guess MPICH's does as well
>>> but I'm not sure how to do it.
>>> 
>>> I only care about launching on a single box right now, not a cluster,
>>> so interactions with multiple nodes, IB, etc. don't matter to me.
>>> 
>>> And when I run in this mode, I will be using Nemesis shm within the
>>> host and within the MIC while using SCIF between them, right?
>>> 
>>> Thanks,
>>> 
>>> Jeff
>>> 
>> 
>> --
>> Pavan Balaji
>> http://www.mcs.anl.gov/~balaji
> 
> 
> 
> -- 
> Jeff Hammond
> Argonne Leadership Computing Facility
> University of Chicago Computation Institute
> jhammond at alcf.anl.gov / (630) 252-5381
> http://www.linkedin.com/in/jeffhammond
> https://wiki.alcf.anl.gov/parts/index.php/User:Jhammond
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