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-   -   Operating Systems and CFX-5 (http://www.cfd-online.com/Forums/cfx/19490-operating-systems-cfx-5-a.html)

cfd guy February 25, 2003 11:21

Operating Systems and CFX-5
 
Hi,
I have two identical machines. One with NT and another with Linux Slackware. Why the machine which contains NT is 40% faster than the Linux one? I was wondering if I change to RedHat. Will I get a speedup?

PS.: Both Pentium IV 2.53GHz and 1Gb RAM. CFX-5.5.1 with the latest patch installed.

Regards, cfd guy

Holidays February 26, 2003 06:47

Re: Operating Systems and CFX-5
 
Generally speaking you should. RedHat is the supported platform anyway and CFX UK may have done some code testing wrt OS.

Jeff March 5, 2003 18:47

Re: Operating Systems and CFX-5
 
My experience shows, for large problems, that CFX-5 running on Windows 2000 Pro is just slightly faster (2% or so) than on RedHat Linux 7.3. Same problem, identical machine configuration, parallel on 2 cpu's. CFX-5 is ONLY omptimized for RedHat Linux 7.x.

Cheers, Jeff


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