[maker-devel] Maker-Error when started with OpenMPI

[Rainer Rutka]

Hi Carson!

Thank you VERY MUCH for your hints.

Much appreciated!

I'll test these today and let you know about the results.

Again: THANKS! :-)

BTW: I'm not a scientist. Only a system operator.

:-)

Am 28.01.2017 um 21:53 schrieb Carson Holt:
> Try adding one of the following to your mpiexec command —>
> 1. --mca btl ^openib
> 2. --mca btl vader,tcp,self --mca btl_tcp_if_include ib0
> 3. --mca btl vader,tcp,self --mca btl_tcp_if_include eth0
> One or the other may fix your issue.  The first causes OpenMPI to not use the infiniband communication option (infiniband libraries use registered memory in a way that causes system calls to generate segfaults). It will usually force communication to go over another adapter. The second tries to use the infiband adapter, but uses TCP over infiniband (way to indirectly bypass problem causing libraries). The third specifically forces the use of the ethernet adapter instead of infiniband adapter.
> --Carson

-- 
Rainer Rutka
University of Konstanz
Communication, Information, Media Centre (KIM)
* High-Performance-Computing (HPC)
* KIM-Support and -Base-Services
Room: V511
78457 Konstanz, Germany
+49 7531 88-5413

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