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Re: [abinit-forum] Gamma point parallelization?


Chronological Thread 
  • From: "Nichols A. Romero" <naromero@gmail.com>
  • To: forum@abinit.org
  • Subject: Re: [abinit-forum] Gamma point parallelization?
  • Date: Fri, 7 Sep 2007 17:25:19 -0400
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Rick,
 
I believe the FFT parallelization was at a beta stage in the 4.x series. I never
had to much success with band parallelization either. The kpoints and spin
polarization are the only parallelization schemes that work effortlessly.
Neither of which are relevant to your problem.

 
On 9/7/07, Rick Muller <rmuller@sandia.gov> wrote:

I'm trying to run a 48 atom job in parallel with abinit. There is
only one k-point, and no spin polarization. I've been through the
abinip tutorial, and have found very little effect using the band
parallelization, despite having 70 bands (I only got something like a
1.4 speedup on 4 processors). I've heard rumors of the FFT
parallelization: is this ready for production use, or should I just
learn to love serial jobs?

Thanks in advance for any help you can offer,

Rick Muller
rmuller@sandia.gov





--
Nichols A. Romero, Ph.D.
DoD User Productivity Enhancement and Technology Transfer (PET) Group
High Performance Technologies, Inc.
Reston, VA
443-567-8328 (C)
410-278-2692 (O)


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