[Beowulf] ramdisk with tmpfs

[Paul Van Allsburg]

Hi All,
I want to make a ramdisk available to cluster users and I'm curious what  your experiences/suggestions might be.  I'm adding 40 
machines to a cluster that have 24 gig of ram.  I'd like to offer the option of allowing some users to be able to run a job on a 
machine with 20 gig carved out for a ram disk.

The cluster is running centos 5.5 with torque & maui.

I expect the user will have to request one machine for the job and have the prologue/eplogue scripts mount & unmount the 
ramdisk. Are there any success / horror stories that I might be enlightened by?

Thanks!
Paul

-- 
Paul Van Allsburg
Scientific Computing Specialist
Natural Sciences Division, Hope College
35 E. 12th St.  Holland, Michigan 49423
616-395-7292    vanallsburg at hope.edu
http://www.hope.edu/academic/csm/