Dear prof Giannozzi sorry to disturb you but i want to ask one question. the same work raran QE simulation with 40 atoms with 8 nodes and 12 nodes. the system got relaxed in 2 days 11 hrs with 8 nodes but it could nod relax even in 3 days with 12 nodes. even it got relaxed with 16 nodes in 2 days 11 hrs but not relax in 6 days with 32 nodes.
can u help me out. with regards vicky singh research student Bangalore On Tue, Jul 20, 2010 at 1:17 PM, Paolo Giannozzi <giannozz at democritos.it>wrote: > vicky singh wrote: > > > Can anybody let me know how does the quantum espresso scale with > > increasing the number of nodes or number of processors. > > short answer: it depends. Please read the documentation, in > particular sec.3 of the userguide; sec.5 of J.Phys. Condens. > Matter 21, 395502 (2009); the following slides: > http://www.fisica.uniud.it/~giannozz/QE-Tutorial/tutorial_para.pdf<http://www.fisica.uniud.it/%7Egiannozz/QE-Tutorial/tutorial_para.pdf> > > P. > -- > Paolo Giannozzi, Democritos and University of Udine, Italy > _______________________________________________ > Pw_forum mailing list > Pw_forum at pwscf.org > http://www.democritos.it/mailman/listinfo/pw_forum > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.democritos.it/pipermail/pw_forum/attachments/20100721/2c95330d/attachment.htm
