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Re: MPI communicators


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  • From: paul.boulanger@umontreal.ca
  • To: forum@abinit.org
  • Subject: Re: MPI communicators
  • Date: Thu, 18 Oct 2007 17:11:18 +0200

Hi,

We are (group of Michel Côté in Montreal) in the process of testing the
modifications of X. Gonze in version 5.4.4. Are preliminary results shows
that the number of communicators and groups does not grow with the number of
datasets, a clear improvement on the older versions. But, we still need to
specify MPI_GROUP_MAX and MPI_COMM_MAX greater then the number of K-points
(we are using twice the number of K-points for these variables).

We are currently looking to fix this last (hopefully) issue. Maybe someone
more knowledgeable will find a workaround with your platform.

Cheers,

Paul



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