The ALINKA Linux Clustering Letter,

Thursday, June the 27th. 2002

Dear readers, I am happy to send you this week's edition of clustering@alinka.com

clustering@alinka.com is a free weekly e-mail newsletter on linux clustering. It provides a summary of the weekly activity in mailing-lists relative to linux clustering (such as beowulf, linux virtual server or linux-ha) and general clustering news. For more information about ALINKA, see: http://www.alinka.com

News from the High Performance world, by Dr Laurent Gatineau (lgatineau@alinka.com)
==========================

Tips and tricks from the Beowulf mailing list
========

Jeff Layton [m1] gave some pointers about some PVFS studies, and gave precision about PVFS stability. [m1]
http://www.beowulf.org/pipermail/beowulf/2002-June/003847.html

* Greg Matthews [m1] had some problem with kickstart, Robert G. Brown [m2] explained its dhcp configuration. [m1] http://www.beowulf.org/pipermail/beowulf/2002-June/003851.html [m2] http://www.beowulf.org/pipermail/beowulf/2002-June/003852.html

* Eric Wages [m1] remind us that the new top 500 list is out [1]. [1] http://www.top500.org [m1] http://www.beowulf.org/pipermail/beowulf/2002-June/003903.html

* Velocet [m1] posted some Gromacs benchmarks on quad Xeons. [m1] http://www.beowulf.org/pipermail/beowulf/2002-June/003868.html

* There was a long thread about Athlon vs Xeon. Steffen Persvold [m1] posted interesting streams benchmarks. Ivan Oleynik [m2] gave comparisons between some architectures with the same code. Pointers to some other comparisons were given Athlon vs Xeon [m3], compilers differences [m4]. [m1] http://www.beowulf.org/pipermail/beowulf/2002-June/003892.html [m2] http://www.beowulf.org/pipermail/beowulf/2002-June/003887.html [m3] http://www.beowulf.org/pipermail/beowulf/2002-June/003793.html [m4] http://www.beowulf.org/pipermail/beowulf/2002-June/003795.html

* There was a thread about Myrinet scalability, look at explanations of Chuck Seitz, CEO of Myricom [m1] which answered to Ole W. Saastad [m2] and Serguei Patchkovskii [m3]. [m1] http://www.beowulf.org/pipermail/beowulf/2002-June/003889.html [m2] http://www.beowulf.org/pipermail/beowulf/2002-June/003826.html [m3] http://www.beowulf.org/pipermail/beowulf/2002-June/003831.html

Coda by Ludovic Ishiomin (lishiomin@alinka.com)
========
* Stephen Rickauer noticed a performance problems. Steffen Neumann suggested that the settings used were the cause [1m]. * There was a discussion about the best way to configure a firewall/nat router between coda clients and the server [2m].

[1m] http://www.coda.cs.cmu.edu/maillists/codalist/codalist-2002/4341.html [2m] http://www.coda.cs.cmu.edu/maillists/codalist/codalist-2002/4333.html and the followings

JFS by Ludovic Ishiomin (lishiomin@alinka.com)
========
* Steve Best announced JFS 1.0.20 [1m]

[1m] http://oss.software.ibm.com/pipermail/jfs-discussion/2002-June/001091.html

XFS by Ludovic Ishiomin (lishiomin@alinka.com)
========
* Steve Lord confirmed there could be alignement problems with XFS and software Raid 5 or EVMS or LVM 2 [1m].

[1m] http://oss.sgi.com/projects/xfs/mail_archive/200206/msg00354.html

News on other cluster related topics
=========================

linux-ia64 by Rached Ben Mustapha (rached@alinka.com)
========
* David Mosberger announced [m1] an ia64 kernel patch for 2.4.18 available here [l1]. This update fixes a memory corruption bug, among others.

[m1] https://external-lists.vasoftware.com/archives//linux-ia64/2002-June/003615.html

[l1] ftp://ftp.kernel.org/pub/linux/kernel/ports/ia64/v2.4/linux-2.4.18-ia64-020622.diff.gz

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