Re: Parallel processing
- To: mathgroup at smc.vnet.net
- Subject: [mg100267] Re: Parallel processing
- From: Michael Weyrauch <michael.weyrauch at gmx.de>
- Date: Fri, 29 May 2009 21:01:14 -0400 (EDT)
- References: <gvlq9j$isl$1@smc.vnet.net> <gvn71i$ers$1@smc.vnet.net>
- Reply-to: michael.weyrauch at gmx.de
Well, I know (from experience) that linear algebra routines were paralellized already prior to version 7. So, when I used NDSolve to solve large systems of coupled ordinary differential equations, which makes heavy use of such routines, the calculation actually used (magically, because I did not have to do anything for that) parallel processing even in version 5.2 and 6. David Bailey schrieb: > dh wrote: >> Hello, >> >> I am running version 7.01 on a quad core CPU. I am doing some heavy >> calculations but was too lazy to use any special commands for >> parallelization. >> >> However, to my surprise, when I check the performance I see that all 4 >> kernels a busy calculating. >> >> Does anybody have any info about this automatic parallelization of >> Mathematica? >> >> Daniel >> >> >> > Prior to 7.0 there was talk that certain cpu-intensive algorithms would > make use of multiple cores where appropriate - presumable they still do. > Where does your program spend its time? > > David Bailey > http://www.dbaileyconsultancy.co.uk >