On Mon, 2 Jul 2012 11:11:08 +0100, Rita Ribeiro <[email protected]> wrote: > Hi, i will buy a computer to program in python using the MEEP software, but > i have several questions about it. Should i bought two computers to do > parallel programming or just one computer with several cpu? > > > R.
Hi Rita, I have used Meep (with the Scheme interface) on a multi-core computer (Corei7, with QuickPath Interconnect (QPI)) and Open MPI as MPI version, and I got at least a 2x speed-up from parallel processing using four cores on a problem with moderate size (memory, let's say, 6 to 8 Gb) I do not have much experience with different configurations, but if I recall correctly I tried MPICH and it did not work as well (perhaps because MPICH works well with many processors but not with multi-core? I do not know), and I tried with an older dual-core processor which does not have the QPI and I also did not obtain a speed gain. If you look around in the internet and in the mailing list archives, there should be more information on the topic. Giovanni ---------------------------------------- Message sent by Cup Webmail (Roundcube) _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
