[Beowulf] diskless cluster nodes ?

[apseyed at bu.edu]

What type of jobs would be typical of a scenerio where diskless nodes (nodes 
with no hard drives/pxe booting the kernel) would be most optimal. I 
understand that the jobs to be run on our future cluster don't do alot of I/O, 
i.e. once running it does alot of computations for a long period of time, 
therefore after loading into memory not much disk access. However, we have a 
couple users utilizing MPI..

Any thoughts on this appreciated.
-P
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