You might also want to look at the LAM FAQ, in the section entitled
"Typical Setup of LAM" for discussion about this issue.
On Sep 20, 2005, at 5:26 AM, Pangrazio, Robert Thomas ((UMR-Student))
wrote:
> Here at school we ran lam off of a AFS mount, which is similar to your
> NFS system. Not a huge speed decrease, that we noticed.
>
>
> Bob
> -----Original Message-----
> From: Dave Hagedorn [mailto:dave.hagedorn_at_[hidden]]
> Sent: Saturday, September 17, 2005 11:23 AM
> To: lam_at_[hidden]
> Subject: LAM: Running LAM off NFS
>
> Hi everyone,
>
> Just wondering if anyone has noticed any performance differences in
> runnnig lam off of an NFS mount as opposed to running locally.
>
> We've got a 14-node cluster set up where I work. There is also a
> storage server with a RAID array. All of the nodes and storage server
> are connected with gigabit ethernet through a single switch. We've
> stored lam + our program (LS-DYNA) on an NFS mount which all of the
> nodes access. In addition, our home directories are mounted via NFS,
> so all output fies from LS-DYNA gets sent across the netowrk. These
> files typically amount to 2 GB or so, usually written over the course
> of a days or more.
>
> Does anyone think this setup could cmpromise overall performance? We
> haven't tried intstalling anything locally - the NFS setup is really
> convenient.
>
> Thanks in advance,
>
> Dave Hagedorn
>
>
>
> _______________________________________________
> This list is archived at http://www.lam-mpi.org/MailArchives/lam/
>
--
{+} Jeff Squyres
{+} The Open MPI Project
{+} http://www.open-mpi.org/
|
