[Beowulf] Understanding environments and libraries caching on a beowulf cluster

[leo camilo]

# Background

So, I am building this small beowulf cluster for my department. I have it
running on ubuntu servers, a front node and at the moment 7 x 16 core
nodes. I have installed SLURM as the scheduler and I have been
procrastinating to setup environment modules.

In any case, I ran in this particular scenario where I was trying to
schedule a few jobs in slurm, but for some reason slurm would not find this
library (libgsl). But it was in fact installed in the frontnode, I checked
the path with ldd and I even exported the LD_LIBRARY_PATH .

Oddly, if I ran the application directly in the frontnode, it would work
fine.,

Though it occured to me that the computational nodes might not have this
library and surely once I installed this library in the nodes the problem
went away.

# Question:

So here is the question, is there a way to cache the frontnode's libraries
and environment onto the computational nodes when a slurm job is created?

Will environment modules do that? If so, how?

Thanks in advance,

Cheers
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