<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7654.12">
<TITLE>Re: [Beowulf] first cluster</TITLE>
</HEAD>
<BODY>
<!-- Converted from text/plain format -->
<P><FONT SIZE=2>-----BEGIN PGP SIGNED MESSAGE-----<BR>
Hash: SHA1<BR>
<BR>
On 13/07/10 05:02, Gus Correa wrote:<BR>
<BR>
> I wonder if swapping over NFS would be efficient for HPC.<BR>
<BR>
There are out of tree patches for swap over NFS (and I've<BR>
seen assertions that SuSE SLES 11 includes it) which has<BR>
been doing the rounds for a few years now (originally by<BR>
Peter Zijlstra but now maintained by Suresh Jayaraman)<BR>
and appears to have last been updated October 2009.<BR>
<BR>
<A HREF="http://www.suse.de/~sjayaraman/patches/swap-over-nfs/">http://www.suse.de/~sjayaraman/patches/swap-over-nfs/</A><BR>
<BR>
The last post (I could find) for it was here, it includes<BR>
a diffstat to show which parts of the kernel are touched:<BR>
<BR>
<A HREF="http://lwn.net/Articles/355350/">http://lwn.net/Articles/355350/</A><BR>
<BR>
This posting of Peter's from 2007 explains a bit more<BR>
about the patches and why it is a hard problem:<BR>
<BR>
<A HREF="http://lwn.net/Articles/256462/">http://lwn.net/Articles/256462/</A><BR>
<BR>
My personal feeling is "here be dragons". ;-)<BR>
<BR>
cheers,<BR>
Chris<BR>
- --<BR>
Christopher Samuel - Senior Systems Administrator<BR>
VLSCI - Victorian Life Sciences Computational Initiative<BR>
Email: samuel@unimelb.edu.au Phone: +61 (0)3 903 55545<BR>
<A HREF="http://www.vlsci.unimelb.edu.au/">http://www.vlsci.unimelb.edu.au/</A><BR>
<BR>
-----BEGIN PGP SIGNATURE-----<BR>
Version: GnuPG v1.4.10 (GNU/Linux)<BR>
Comment: Using GnuPG with Mozilla - <A HREF="http://enigmail.mozdev.org/">http://enigmail.mozdev.org/</A><BR>
<BR>
iEYEARECAAYFAkw7v5YACgkQO2KABBYQAh9J8wCffmBVB8cbBRTCYSAq6XGqBEdB<BR>
ngEAnjWKlxtsA9ok7YJvdtX8cTCGl6FL<BR>
=3XC7<BR>
-----END PGP SIGNATURE-----<BR>
</FONT>
</P>
</BODY>
</HTML>