[Beowulf] Memory limit enforcement

Olli-Pekka Lehto oplehto at csc.fi
Mon Oct 8 08:55:58 PDT 2007


I'm interested in hearing some best practice solutions in fine-grained 
management memory resources on clusters of SMPs. How do you enforce real 
memory usage inside (RHEL-based) cluster nodes running multiple serial 
jobs simultaneously? More specifically, how to do this efficiently when 
some of the jobs map copious amounts of virtual memory but have only a 
fraction of it resident at any given time?

As SMP systems keep getting constantly fatter (and the potential for 
users interfering with each others' jobs increasing) it would be great 
to have something like AIX's WLM (Workload Manager) on Linux to 
effectively manage intra-SMP resources.

Olli-Pekka Lehto, Systems Specialist, Special Computing, CSC
PO Box 405 02101 Espoo, Finland; tel +358 9 457 2215, fax +358 9 4572302
CSC is the Finnish IT Center for Science, www.csc.fi,
e-mail: Olli-Pekka.Lehto at csc.fi

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