CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

optimum desktop spec?

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   February 22, 2007, 12:52
Default optimum desktop spec?
Roderic Jones
Posts: n/a
I use a Fire Modelling CFD package called SMARTFIRE at work. It can be run in serial or parrallel. Does anyone have any recomendations for the optimum desktop computer spec? considering getting 2x Quad Core Zeons and running in parrallel on the 8 processors. Any comments?
  Reply With Quote

Old   February 23, 2007, 17:36
Default Re: optimum desktop spec?
Posts: n/a
This sort of question has been asked often on this forum, so have a search through the history banks. The short answer is that you HAVE to test YOUR software if you need a definitive answer. Arbitrary benchmarks can be misleading, especially when issues like memory or cache usage and latency become important. There are lots of caveats to consider before blindly believing the SpecFPRate figures ( , look under SpecCPU), but in my experience these at least give you a reasonable idea of how parallel processing is likely to scale on your system. From the SpecFPRate figures I would tend to steer clear of a 2Xquad-core system, it seems to offer surprisingly little performance advantage over a 2Xdual-core. This leads one to suspect that it's severely memory bandwidth limited. If you really need an 8-way system, either consider a small cluster of 2 dual-socket dual-core machines, or, more cost-effectively, 4 single-socket dual-core machines. If there is some reason why you really need to have an 8-way SMP system (as opposed to a distributed memory cluster), the better option seems to be a 4-socket dual-core Opteron setup, which, according to the SPEC figures, has much better parallel scaling.
  Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Recommended PC Spec for STAR-CCM+ Alex CD-adapco 12 November 8, 2013 02:41
Unforeseen problems in scaling up a cluster built with desktop parts? kyle Hardware 22 January 18, 2012 14:46
Any users of remote desktop applications with Ansys? mullenc525 ANSYS 0 January 7, 2011 21:02
Optimum mesh? Ralf Schmidt FLUENT 0 December 23, 2005 05:23
suggestion need desktop configuration for fluent Ravinder Reddy FLUENT 3 September 9, 2005 08:09

All times are GMT -4. The time now is 16:36.