Hi Luc, try execute yade with the option '-j6', for example './yade -j6 yourfile.py' to run you calculation with 6 cores.
Cheers Klaus On Tue, 19 Apr 2011 12:39:38 pm luc scholtes wrote: > Hi guys, > > sorry to wake up so late, but, I tried to find info concerning the -j/ > --jobs option and could not really sort it all due to my lack of Linux > oriented knowledge... As I understand, YADE now run 1 thread (job?) per > core. Nonetheless, what would be the command to make it run 1 thread over > several/all cores in order to speed up the calculation (if it is the right > thing to do for this purpose)? > > Thanks in advance > > Luc > > 2011/1/30 Anton Gladky <[email protected]> > > > Hi, > > > > In most of my simulations I use 1 thread/core and find it the most > > optimal solution. Also it helps to get completely identical results > > excluding openmp-instability. And only on a very large simulations > > (>10^5 particles) it is reasonable to use 2-3 threads, no more. > > > > So, I personally agree. > > > > Anton > > > > 2011/1/29 Václav Šmilauer <[email protected]>: > > > Hi there, > > > > > > due to numerous performance problems when Yade uses the default number > > > of threads (one thread per core), I think it would be better to make > > > run single-threaded by default, so that unknowledgeable people are not > > > hit. Those who know assign the right number of threads anyway. > > > > > > It would concern both the main program, and also the batch system, > > > which would still use all cores, but 1 core/job. > > > > > > Thoughts? > > > > > > v. > > > > > > _______________________________________________ > > > Mailing list: https://launchpad.net/~yade-dev > > > Post to : [email protected] > > > Unsubscribe : https://launchpad.net/~yade-dev > > > More help : https://help.launchpad.net/ListHelp > > > > _______________________________________________ > > Mailing list: https://launchpad.net/~yade-dev > > Post to : [email protected] > > Unsubscribe : https://launchpad.net/~yade-dev > > More help : https://help.launchpad.net/ListHelp -- Dr. Klaus Thoeni - Centre for Geotechnical and Materials Modelling Civil, Surveying and Environmental Engineering - Engineering Building EA The University of Newcastle, Callaghan, NSW 2308, Australia web: http://www.newcastle.edu.au/research-centre/cgmm phone: +61 (0)2 4921 5118 _______________________________________________ Mailing list: https://launchpad.net/~yade-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-dev More help : https://help.launchpad.net/ListHelp
