[Pw_forum] k-points parallelization in pwscf 4.2.1
giannozz at democritos.it
Mon Feb 14 11:34:54 CET 2011
Davide Sangalli wrote:
> What could my problem be?
the only reason I can think of is that k-point parallelization doesn't
(and cannot) distribute memory, so the total memory requirement will
be npools*(size of serial execution). If you run on the same node six
instances of a large executable, memory conflicts may slow down more
than parallelization can speed up.
Paolo Giannozzi, Democritos and University of Udine, Italy
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