[Wien] OMP_NUM_THREAD

Laurence Marks laurence.marks at gmail.com
Wed Jun 5 03:09:43 CEST 2013


Read the mkl documentation, OMP_NUM_THREADS is advisory only.

In addition, read the Wien2k documentation to see how to do k-pt parallel
operation, it is not by this mechanism.

---------------------------
Professor Laurence Marks
Department of Materials Science and Engineering
Northwestern University
www.numis.northwestern.edu 1-847-491-3996
"Research is to see what everybody else has seen, and to think what nobody
else has thought"
Albert Szent-Gyorgi
 On Jun 4, 2013 6:38 PM, "Jose Alfredo Camargo Martinez" <sork8686 at yahoo.es>
wrote:

>  Hi.
>  We install  Wien2k (serial mode) in a server with 64 processors
>  (Workstation AMD Opteron 6328 4X16 ). In  bashrc we defined
> OMP_NUM_THREAD=58.
>  When we run "run_lapw" (Kmax=7 and  N° of k-points=2000), only 33
> processors running.
>
>  Why it doesn't run in 58 processors?
>
>  J. Camargo.
>
>
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