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From: Pangrazio, Robert Thomas \(UMR-Student\) (rtp6xc_at_[hidden])
Date: 2005-09-19 22:26:23


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