Illusory Multicore Support in 5.2?
- To: mathgroup at smc.vnet.net
- Subject: [mg66000] Illusory Multicore Support in 5.2?
- From: "Contrablue" <tetraploidhybrid at hotmail.com>
- Date: Wed, 26 Apr 2006 04:38:10 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Greetings, One of the reasons I upgraded to Mathematica 5.2 was to enjoy the benefits of multicore support. However, despite my running 5.2 on a Windows XP x64 dual Opteron system, I have yet to see evidence that more than one kernel thread runs in parallel (the evidence, on my system, would be to see processor utilization rise above 50% while only the Mathematica kernel was active). This is despite trying quite a few evaluations of code that "should" -- according Wolfram documentation -- initiate parallel execution on my system (numerical dot products, etc.) Please note, my system fully supports true multithreaded execution on two CPUs, as evidenced by 100% CPU utilization on relevant Sandra benchmarks and on the new multithreaded POV-Ray releases for AMD64. Has anyone verified multithreaded kernel operation of Mathematica 5.2 on a dual processor Windows platform? If so, could you post a snippet of your Mathematica expressions here? Thanks much!
- Follow-Ups:
- Re: Illusory Multicore Support in 5.2?
- From: Pratik Desai <pratikd@wolfram.com>
- Re: Illusory Multicore Support in 5.2?