[Wien] Job distribution problem in MPI+k point parallelization
lung Fermin
ferminlung at gmail.com
Tue Jan 27 16:41:28 CET 2015
Dear Wien2k community,
Recently, I am trying to set up a calculation of a system with ~40 atoms
using MPI+k point parallelization. Suppose in one single node, I want to
calculate 2 k points, with each k point using 2 processors to run mpi
parallel. The .machines file I used was
#
1:node1 node1
1:node1 node1
granularity:1
extrafine:1
#
When I ssh into node1, I saw that there were 8 lapw1_mpi running, each with
CPU usage of 50%. Is this natural or have I done something wrong? What I
expect was having 4 lapw1_mpi running each with CPU usage of 100% instead.
I am a newbei to mpi parallelization. Please point me out if I have
misunderstand anything.
Thanks in advance,
Fermin
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://zeus.theochem.tuwien.ac.at/pipermail/wien/attachments/20150127/bdf87785/attachment.html>
More information about the Wien
mailing list