[Pw_forum] running PWSCF on IB-based cluster

[高星]

Dear Paolo,

Thanks a lot for your quick response! We are using intel compiler and openmpi. Actually, someone else configured our cluster, and I had to use mpirun with option "bind-to-core" to run a job over more than one nodes. If I do not use "--bind-to-core" option, the job will be submitted to only one node with np processors. There was no problem to run other program with "--bind-to-core" option except QE, for which I got "processor affinity failure". That's why I posted my question on pw_forum. Thanks again for your reply!

Best,

Xing


> -----原始邮件-----
> 发件人: "Paolo Giannozzi" <paolo.giannozzi at uniud.it>
> 发送时间: 2014年8月29日 星期五
> 收件人: "PWSCF Forum" <pw_forum at pwscf.org>
> 抄送: 
> 主题: Re: [Pw_forum] running PWSCF on IB-based cluster
> 
> QE knows nothing about which processor is on which node.
> It must be related to the MPI libraries ("openmpi" and 
> "intel mpi" are different, by the way, and one should
> be careful not to mix up the two) and to how MPI is
> started on your machine
> 
> P.
> 
> On Fri, 2014-08-29 at 17:53 +0800, 高星 wrote:
> > 
> > Dear QE community,
> > 
> > We have an infini-band based cluster with 8 computing nodes and each
> > nodes contains 16 cores. I compiled QE package on this cluster
> > successfully with compiler mpif90 (openmpi intel compiler) and there
> > was no problem to run  pw.x on one node with 16 processors. However,
> > when I tried to use two nodes (that is, -np 32), I met "processor
> > affinity failure". It says, "an attempt to set processor affinity has
> > failed - please check to ensure that your system supports such
> > functionality. If so, then this is probably something that should be
> > reported to the OMPI developers". Actually, there is no such problem
> > when I run other program. I am wondering if someone else met the
> > similar question before? And please give me any hint which may help me
> > on this problem! Thanks in advance!
> > 
> > Best,
> > 
> > Xing
> > 
> > 
> > 
> > 
> > 
> > 
> > _______________________________________________
> > Pw_forum mailing list
> > Pw_forum at pwscf.org
> > http://pwscf.org/mailman/listinfo/pw_forum
> 
> -- 
>  Paolo Giannozzi, Dept. Chemistry&Physics&Environment, 
>  Univ. Udine, via delle Scienze 208, 33100 Udine, Italy
>  Phone +39-0432-558216, fax +39-0432-558222 
> 
> _______________________________________________
> Pw_forum mailing list
> Pw_forum at pwscf.org
> http://pwscf.org/mailman/listinfo/pw_forum






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