<br><font size=2 face="sans-serif">Hello,</font>
<br>
<br><font size=2 face="sans-serif">I have been using the MYRICOM 10Gb card
in my NFS server (head node) for the Beowulf cluster. And it works
well. I have a inexpensive 3Com switch (3870) with 48 1Gb ports
that has a 10Gb port in it and I connect the NFS server to that port. The
switch does have small fans in it. </font>
<br>
<br><font size=2 face="sans-serif">I had to compile the driver and patch
the Linux kernel (RedHat Enterprise 4U4). There are tuning parameters,
some of which I have tried and some which I have not (Don't break it if
it works well... )</font>
<br>
<br><font size=2 face="sans-serif">It'd been running well for 4 months
now. My internal cluster benchmarks ( parallel Quantum mechanics programs
) improved by about 20% with disk backups improving by 60%. Pretty much
everything that uses MPI runs faster since the NFS server network usage
is a smaller percentage of the network wall clock time.</font>
<br>
<br><font size=2 face="sans-serif">I think the 10Gb link to the NFS server
is a effective upgrade component of a beowulf cluster if one is using 1Gb
ethernet, MPI and NFS.</font>
<br><font size=2 face="sans-serif">------<br>
Sincerely,<br>
<br>
Tom Pierce<br>
</font>
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<td width=40%><font size=1 face="sans-serif"><b>Mark Hahn <hahn@mcmaster.ca></b>
</font>
<br><font size=1 face="sans-serif">Sent by: beowulf-bounces@beowulf.org</font>
<p><font size=1 face="sans-serif">02/20/2007 03:25 PM</font>
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<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td valign=top><font size=1 face="sans-serif">[Beowulf] anyone using 10gbaseT?</font></table>
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<br><font size=2><tt>Hi Beowulfers,<br>
have you had any experience using 10gbaseT yet?<br>
I happened on a media story about how quite a few vendors have <br>
recently intro'd support for it. the only nics mentioned were <br>
the heavyweight encumbered-with-TOE kind - on them at least,<br>
the article mentioned 20-25W dissipation. (which doesn't seem<br>
like a big deal - about a disk and a half, fraction of a cpu,<br>
or a tenth of a GPU :)<br>
<br>
anyway, I'm interested to hear if anyone's played with 10gbaseT<br>
(or 10G clusters in general)...<br>
<br>
thanks, mark hahn.<br>
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