[Beowulf] SuSE 9.3 and dual core Opterons
kinghorn at pqs-chem.com
Mon Jul 11 19:04:35 EDT 2005
I'll start this thread to kill two birds with one stone ... gee that's not a
very nice old saying is it :-)
To answer the question about using SuSE 9.3. -- Yes you can use it in general
and yes, you can use it with dual-core Opterons too.
However, I had to jump through some insane hoops to get it running on a Tyan
S2891 board with dual-dual-core 2.0GHz Opterons, 4GB mem ....
The results were quite satisfying though. We benchmarked our computational
chemistry software (PQS) against a 2 node dual Opteron setup with the same
general configuration. [2x Tyan S2875 and 2.0GHz Opterons 2GB/per board, SuSE
We got better performance for most 4 process parallel (pvm) jobs on the
dual-core system than on the 2 dual-node setup. The only slower jobs were MP2
jobs that did heavy disk i/o but this was expected. ... I have SATA-II drives
on order :-)
The main problem with the SuSE 9.3 install on the dual-core setup was that the
install didn't create the correct initrd to boot the system. I've worked
around it using the SuSE 9.3 Live CD, (which does boot and run fine), by
mounting the installed system and chroot'ing into it and fixing the initrd.
>From now on I'll clone it.
I'll be doing our cluster systems with the new Tyan board and dual-core
Opterons with a configuration running SuSE 9.3 for our next hardware
iteration starting in Sept..
Hope this is helpfull info.
Dr. Donald B. Kinghorn Parallel Quantum Solutions LLC
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