[Beowulf] Supercomputers face growing resilience problems

Hearns, John john.hearns at mclaren.com
Thu Nov 22 02:39:54 PST 2012

"Other researchers have shown that multiple failures are sometimes correlated with each other, because a failure with one technology may affect performance in others, according to Gainaru."

Interesting idea - and of course cluster admins have been doing this all along, only manually.
How often have you run a parallel shell to grep through logs on a buch of nodes to look for a certain string or a certain event?
Automating this is a good concept.

But in the department of No Shit Sherlock!:

 "For instance, when a network card fails, it will soon hobble other system processes that rely on network communication."
Well I never...

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