Hi Leo, A bit more clarification on this cluster setup
You have 1 primary node and then the rest connect to it in a diskless fashion booting off the primary (front) node? Regards, Jonathan ________________________________ From: Beowulf <beowulf-boun...@beowulf.org> on behalf of leo camilo <lhcam...@gmail.com> Sent: 28 June 2022 11:32 To: Beowulf@beowulf.org <Beowulf@beowulf.org> Subject: [Beowulf] Understanding environments and libraries caching on a beowulf cluster # 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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