Preliminary info on the Scyld Beowulf distribution
becker at scyld.com
Mon Oct 9 22:28:04 EDT 2000
Well, I guess I was scooped by SlashDot.
As many of you have guessed from the hints and list postings, Scyld has been
working on the next-generation Beowulf system.
Our goal was an easy to install and run system that required minimal
sysadmin knowledge for production use. Our new distribution is also easy to
use for developers.
Here are a few features that should help avoid common problems reported on
We use 'BProc' for almost everything. This eliminates the environment and
path problems with 'rsh', and is far faster than either 'rsh' or 'ssh'.
After years of discussions, we finally have a universal booting system.
It uses 'Two Kernel Monte' to replace a minimal initial kernel that knows
only about networking with a full kernel.
Only the front-end "master" node has a full install.
The compute "slave" nodes can run with only 40MB in their filesystem.
Essentially all of the 40MB is cached libraries, with most files in
/etc/*, such as /etc/passwd, not needed.
Executables only need to exist on the front end machine. We don't even
need /bin/sh on the slave nodes.
The system is usable with 64MB. 128MB or larger is preferred for serious
The system is based around a common distribution e.g. RedHat. We replace
the kernel, the C library and a handful of utilities (the last two are for
LFS large file support). We add the cluster control programs, including a
GUI, a custom MPI, etc.
We will showing this distribution later this week in Atlanta at the Linux
Showcase. If you won't be in Atlanta you can order a development preview
CD-ROM distribution for only $2 from LinuxCentral at
Donald Becker becker at scyld.com
Scyld Computing Corporation http://www.scyld.com
410 Severn Ave. Suite 210 Second Generation Beowulf Clusters
Annapolis MD 21403 410-990-9993
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