forum@abinit.org

Subject: The ABINIT Users Mailing List ( CLOSED )

List archive

Re: [abinit-forum] K-points splitting among different processors

From: "Anglade Pierre-Matthieu" <anglade@gmail.com>
To: forum@abinit.org
Subject: Re: [abinit-forum] K-points splitting among different processors
Date: Mon, 16 Jul 2007 09:30:07 +0200
Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; b=TDNULLvO5o9KTD+Dksd0NbZXhtC+N+iiYRclp5I7Z4+15SkO5NfLw2SYHjh/HxQ9N+ccYMFND22gTM1wLBt5Aq525sV4PnmR2LXOnyUnw1J78YoHLenwMZAwvPyGmecG1+IMuwE50Ua6aI6frZyA5hAkH3Qht07WeCWntONhDD0=

Hi,

Not so much a fool question. Yet I think that nothing of this kind is already implemented into Abinit.
I think you may feel free to do it however.
On the other side doing parallel calculations over heterogeneous clusters is more of a computer scientis problems. It would, probably, be best solved on the MPI lib side. And it looks like some groups provides implementations/tricks and advices on how to run MPI calculations on heterogeneous systems. You may be interested in checking if any MPI flavor is able to solve your problem without changing anything in Abinit.

Best regards

PMA

On 7/9/07, maurosgroi@yahoo.it <maurosgroi@yahoo.it > wrote:

Dear all,
maybe a fool question: is it possible to manually assign the number of k-points to each processor during a parallel computation?
This could improve the performance of a cluster composed by different CPU with different speeds.
Thanks a lot and best regards,
Mauro.

--
Pierre-Matthieu Anglade

K-points splitting among different processors, maurosgroi, 07/09/2007
- Re: [abinit-forum] K-points splitting among different processors, Anglade Pierre-Matthieu, 07/16/2007
  - Re: [abinit-forum] K-points splitting among different processors, Mauro Sgroi, 07/17/2007