[Pw_forum] scalability of the code

giacsport at libero.it giacsport at libero.it
Tue Feb 7 09:38:38 CET 2012

Dear All,
              I have maybe a silly question. I would like to know which is the 
highest number of processors used  and reported for running PWscf code. Are 
there data or reports on the scalability of the code (well) above 1000 
I know of course that performances change according to the machine used, but 
also a qualitative answer would be sufficient.
I am reading here and there how to improve the scalability of the code for 
example in machine like IBM Blue Gene.

We are indeed interested in installing the code in a massively parallel 
machine, but before doing it we would like to have more information.

Thanks in advance,


Giacomo GIORGI, PhD.

Department of Chemical System Engineering,
School of Engineering, The University of Tokyo
7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
E-mail: giacomo at tcl.t.u-tokyo.ac.jp


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