[Beowulf] Why need of a scheduler??

amjad ali amjad11 at gmail.com
Thu Nov 29 08:14:28 EST 2007


Hello all,

I want to develop and run my parallel code (MPI based) on a Beowulf cluster.
I have no problem as such that many user might log on to the cluster
simultaneously. Suppose that I am free to use cluster dedicatedly for my
single parallel application.

1) Do I really need a cluster scheduler installed on the cluster? Should I
use scheduler?

2) Is there any effect/benefit on the running of a parallel code with or
without cluster job scheduler?

3) How you differentiate between cluster scheduler and cluster resource
manager?

4) If there is any significant difference between a scheduler and manager
then plaese tell me that which of the fall in which category:

OpenPBS, PBS Professional, SGE, Maui, Moab, Torque, Scyld, LSF, SLURM etc.

5) What is maent by  " PBS/SGE/LSF supports integration with the Maui
scheduler?

Precise, easy and brief reply requested. Thanks to all.


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