[Pw_forum] pw.x running but nothing happens

Lorenzo Paulatto paulatto at sissa.it
Mon Sep 7 15:24:32 CEST 2009


In data 07 settembre 2009 alle ore 13:27:31, wangqj1 <wangqj1 at 126.com> ha  
scritto:
>      I don't know why only display 8 CPUs while I use 2 nodes (16 CPUs)

top only displays process on the node it's running.

> Untill now the job only has 2 iterations form 2:00 PM today  ,it is so  
> slowly .  How can I solve this problem ?


Probably the network connection is slow, use k-point parallelisation  
(pools) among different nodes, it is not as efficient as g-space  
parallelization, but it requires much less communication.


regards


-- 
Lorenzo Paulatto
SISSA  &  DEMOCRITOS (Trieste)
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