Paul,
 
I've set up IB on OSCAR clusters a few times; if you run into any problems, let 
me know, I may be able to offer some help.
 
--Joe

________________________________

From: [EMAIL PROTECTED] on behalf of Paul Guermonprez
Sent: Fri 3/7/2008 8:16 AM
To: [email protected]
Subject: [Oscar-devel] 5.1b1 on RHEL 5.1 x86_64 results



hello,


the hardware : 10 xeon servers, GEth plus voltaire IB.

soft : rhel 5.1 x86_64 and oscar rhel-5-x86_64-5.1b1,
using PBS and not SGE

result :

1. missing detail in the doc :
the hostname must not be localhost OK
but if you have 2 interfaces you have to use as hostname the cluster
interface name. it is causing PBS configuration errors.
It is also important to have the short domain name / FQDN in the right order
so that the reverse and hostname match (i guess).

2. had to create a rpm for network kernel drivers, and use UYOK
even if the driver was present unused on the server machine.
I would opt for a "choose drivers" step in the setup process to
solve storage and network.
I 've seen details on how to do that with sis, but not with oscar

3. using voltaire infiniband, added openib redhat rpms in the image,
will have to make it work later. will publish a howto.
ofed will be next step.

4. selinux was disabled but the script
/opt/oscar/scripts/system-sanity.d/selinux-check.pl
had a problem, i had to remove /usr/sbin/selinuxenabled to make it work.

5. cpush problem copying /etc/hosts,
causing buggy too long filenames impossible to copy in /tmp like
/tmp/192.168.2.109605192.168.2.108581192.168.2.107539192.168.2.106435192.168.2.105479192.168.2.104420192.168.2.103374192.168.2.102245192.168.2.101201192.168.2.1032688hosts
using "cpush -b" (without rsync) works fine

will update my howto in detail ASAP ... this time with infiniband setup


nice software !
thanks, paul.

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