[mpich-discuss] Support for MIC in mpich2-1.5

Pavan Balaji balaji at mcs.anl.gov
Mon Nov 5 20:37:38 CST 2012


On 11/05/12 13:12, John Fettig wrote:
> I believe I have a working build, I'll append my cross file to the end
> of this email if anybody else wants to try it.

Thanks!

> I have a followup question:  is there any support for launching jobs
> that use both the MIC and the host CPU?

Yes.  Once you have setup MPICH on both the host and MIC, you can launch 
jobs across them.

If you didn't pass any configure option, it'll use TCP/IP, which is very 
slow.  If you configure with --with-device=ch3:nemesis:scif, it'll use 
the SCIF protocol, which is much faster.

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji


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