Hi, Terry,
Thank you very much for your help. It worked!
Min
-----Original Message-----
From: users-bounces_at_[hidden] [mailto:users-bounces_at_[hidden]] On Behalf Of Terry Frankcombe
Sent: 16 April 2009 12:07
To: Open MPI Users
Subject: Re: [OMPI users] An mpirun question
Hi Min Zhu
You need to read about hostfiles and bynode/byslot scheduling. See
here:
<http://www.open-mpi.org/faq/?category=running#mpirun-scheduling>
Ciao
On Thu, 2009-04-16 at 10:43 +0100, Min Zhu wrote:
> Dear all,
>
>
>
> I wonder if you could help me with this question.
>
> I have got 3 Linux servers with 8 processors on each server. If I want
> to run a job using mpirun command
>
> and specify the number of processors to be used on each server. Is
> there any way to do this? At the moment,
>
> I find that I can only issue such command “mpirun –np 14 –host
> cfd1,cfd2 ./wrf.exe’ which means the mpirun
>
> Will run the job using 7 processors on each server cfd1 and cfd2. Can
> I specify say using 8 processors on cfd1 and
>
> 6 processors on cfd2? I ask this question because I found that the
> different combination of processors on those
>
> Servers can influence the computation time dramatically. Thank you
> very much in advance,
>
>
>
> Cheers,
>
>
>
> Min Zhu
>
>
>
> CONFIDENTIALITY NOTICE: This e-mail, including any attachments,
> contains information that may be confidential, and is protected by
> copyright. It is directed to the intended recipient(s) only. If you
> have received this e-mail in error please e-mail the sender by
> replying to this message, and then delete the e-mail. Unauthorised
> disclosure, publication, copying or use of this e-mail is prohibited.
> Any communication of a personal nature in this e-mail is not made by
> or on behalf of any RES group company. E-mails sent or received may be
> monitored to ensure compliance with the law, regulation and/or our
> policies.
> _______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users
_______________________________________________
users mailing list
users_at_[hidden]
http://www.open-mpi.org/mailman/listinfo.cgi/users
________________________________________________________________________
This e-mail has been scanned for all viruses by Star. The
service is powered by MessageLabs. For more information on a proactive
anti-virus service working around the clock, around the globe, visit:
http://www.star.net.uk
________________________________________________________________________
CONFIDENTIALITY NOTICE: This e-mail, including any attachments, contains information that may be confidential, and is protected by copyright. It is directed to the intended recipient(s) only. If you have received this e-mail in error please e-mail the sender by replying to this message, and then delete the e-mail. Unauthorised disclosure, publication, copying or use of this e-mail is prohibited. Any communication of a personal nature in this e-mail is not made by or on behalf of any RES group company. E-mails sent or received may be monitored to ensure compliance with the law, regulation and/or our policies.
|
![[Flag]](../../../../../community/mirrors/flag-us.gif){kind=small}