[gmx-users] Dual core on Linux

leafyoung81-group at yahoo.com leafyoung81-group at yahoo.com
Sat Oct 8 09:52:19 CEST 2005

"Jim (Rui) Qiao" <ruiqiao at gmail.com> wrote:Dear gmx-users:
I have two somewhat stupid questions regarding the dual-core processor on Linux, could some one shed some light on it?
Question 1: Does the dual core means we effectively have two CPU on one machine? i.e., If run two separate jobs on a dual core machine, does it equivalent to running these two jobs on two separate machines? (assume the memory cost, and disk writing is not an issue). 
Yes. equivalent. But advantage of dual-core is 1) cost (AMD's implementation is excellent.) in terms of motherboard, networking. 2) running parallel jobs. If all your job is single-run, dual core will not be effective in shortening run time (but shortening total run time for more than one job).
Question 2: Does the old RedHat 9.0 support the dual core technique? It appears to me that dual core machine is fairly new thing. If RH9.0 is not good, what Linux distribution should a gromacs user go for?
dual-core shall be recognized as SMP. I think that RH9 gives you the option to use SMP or non-SMP kernel during boot. Choose SMP kernel.
There is no preferred Linux. As gromacs' performance is mainly kernel-independent. If you do md+analysis on the same computer, then you need a comprehensive distribution. Fedora Core 4 or CentOS 4, I recommend. Just install everything.
Thank you very much for your input.
gmx-users mailing list
gmx-users at gromacs.org
Please don't post (un)subscribe requests to the list. Use the 
www interface or send it to gmx-users-request at gromacs.org.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://maillist.sys.kth.se/pipermail/gromacs.org_gmx-users/attachments/20051008/404918ec/attachment.html>

More information about the gromacs.org_gmx-users mailing list