Dear A.Anandaraman, EPW is only parallelized over k-points. You therefore need to run it with -npool. In your case it would be something like:
mpirun -np 4 XXX/epw.x -npool 4 < input_file. Please note that the version 4 of EPW is now available in the QE 5.4.0 package. Best, Samuel On 25 April 2016 at 11:27, Anandaraman Raman <[email protected]> wrote: > Dear Sir, > > I installed espresso 4.0.3 with EPW3.0, When is am running EPW with 4 > cores. I am encountering the following error. > > Can any one suggest me the changes I want to do to run it in parallel? > > > > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% > from setphases_wrap : error # 1 > only one proc per pool > > > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% > > stopping ... > > > > Regards > A.Anandaraman > > -- > "Religion is just a set of symbols. It is being hijacked for political and > monetary gains." > > _______________________________________________ > Pw_forum mailing list > [email protected] > http://pwscf.org/mailman/listinfo/pw_forum > -- ------------------------------------------------------------------------------------------------ Dr. Samuel Poncé Department of Materials University of Oxford Parks Road Oxford OX1 3PH, UK Phone: +44 1865 612789 email: [email protected] <[email protected]> web: http://giustino.materials.ox.ac.uk/index.php/Site/SamuelPonc%e9 ------------------------------------------------------------------------------------------------
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