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Beowulf/Cluster Programs
- xmlsysd
- xmlsysd is a daemon that provides systems statistics to remote
clients for monitoring purposes.
- wulfstat
- wulfstat is a simple ncurses/tty client for xmlsysd that presents a
variety of useful views of a cluster in scrollable tty windows.
- wulflogger
- wulflogger is another xmlsysd client that presents the same views
of a cluster a pure tty/stdout display. This is easy to log or parse in
e.g. a perl script for web or other display.
- wulfweb
- wulfweb is a perl script based on wulflogger that builds a simple
html table of a cluster that automatically refreshes after a selected
delay. It is alpha to early beta -- only the load average view works --
but this view works quite well. With wulfweb anybody with a browser can
monitor cluster status and load.
- yum
- Seth Vidal's yum (yellow dog updater, modified) is a crucially
important tool permitting the near complete automation of package
management on RPM based installations. This tool is valuable in the
context of managing any LAN, very much including NOW/COW type clusters
(clusters built from a custom workstation configuration).
- cpu_rate
- cpu_rate is a microbenchmark shell that encapsulates a number of
useful and interesting benchmarks including (for example) a variant of
stream, the savage benchmark, and some "raw" memory speed benchmarks.
- rshbench
- rshbench is a trivial benchmark of remote shell programs. For most
people this will be pretty useless, as using ssh is (in my opinion) a
no-brainer, given its sub-second overhead.
- memtest
- This is a short paper on memtest, crosslisted with Talks. I wrote
memtest to play with benchmarking memory bandwidth, specifically to be
able to see for myself the "cost" of random access versus streaming
access for memory on various architectures. memtest is being swallowed
whole by cpu_rate above, though, with its superior timing harness. The
graphs on this page, however, are worth preserving so I'm leaving the
page active for the time being.
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