[mpich-discuss] MPICH with heterogeneous architectures

[Andrew Green]

Hi Dmitry,

Thank you, that works perfectly!

Thanks,
Andrew


> On 18 Sep 2015, at 11:53, Durnov, Dmitry <dmitry.durnov at intel.com> wrote:
> 
> Hi Andrew,
> 
> As a quick solution I would recommend you to try to wrap the proxy (into a shell script) and add architecture recognition/specific logic via something like "uname -m" + check for "k1om" (and execute corresponding binary).
> So hydra would run the script and the script would select an appropriate proxy binary.
> 
> There are several ways but this one should be quick and work fine.
> 
> BR,
> Dmitry
> 
> -----Original Message-----
> From: Andrew Green [mailto:afgreen at cern.ch]
> Sent: Friday, September 18, 2015 12:03 PM
> To: discuss at mpich.org
> Subject: [mpich-discuss] MPICH with heterogeneous architectures
> 
> Hello,
> 
> I've been trying to use MPICH2 with an application on the Intel Xeon Phi. I have two builds of MPICH2: one host-compatible and one MIC-compatible. So far I have only been able to run either only on the host or only on the MIC; I would ideally like to be able to run on both simultaneously.
> 
> I can see what is going wrong: hydra tries to launch a proxy on the MIC which has been compiled for the host and therefore can't be executed. Is there any way to change this default behaviour? I tried changing the launch executable, but it didn't have the effect I wanted.
> 
> Thanks for your help,
> Andrew
> 
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