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[abinit-forum] distributing density file info for parallel calculations


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  • From: Derek Stewart <stewart@cnf.cornell.edu>
  • To: forum@abinit.org
  • Subject: [abinit-forum] distributing density file info for parallel calculations
  • Date: Thu, 29 Jan 2009 15:41:10 +0100 (CET)

Hi everyone,

I am currently running a series of large scale parallel abinit calculations
that require reading in either the wavefunction file or the density file from
the previous step. In order to cut down on input-output communication, I have
each node writing to a local hard drive and I have set up prtwf 0 so that the
wavefunction is not written out. The wavefunction files were getting too
large
to handle.

The local directories are not visible on the other nodes. In the past, I was
able to push the wavefunction file from one node to all the others using
localrdwf 0. I would like to read in the density file and push it out to the
other nodes using a similar process. Is this possible with Abinit? If not,
could someone direct me to the best place to implement this in the code?

Thanks,

Derek

################################
Derek Stewart, Ph. D.
Scientific Computation Associate
http://www.people.cornell.edu/pages/das248/
250 Duffield Hall
Cornell Nanoscale Facility (CNF)
Ithaca, NY 14853
stewart (at) cnf.cornell.edu
(607) 255-2856


  • [abinit-forum] distributing density file info for parallel calculations, Derek Stewart, 01/29/2009

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