[slurm-users] FreeMem is not equal to (RealMem - AllocMem)

[Bjørn-Helge Mevik]

Pavel Vashchenkov <vashen at itam.nsc.ru> writes:

> There  is a line "RealMemory=257433 AllocMem=155648 FreeMem=37773
> Sockets=2 Boards=1"
>
>
> My question is: Why there is so few FreeMem (37 GB instead of expected
> 100 GB (RealMem - AllocMem))?

If I recall correctly, RealMem is what you have configured in
slurm.conf, and AllocMem is how much Slurm has allocated to jobs, while
FreeMem is how much ram is unused on the machine.

So RealMem and AllocMem do not necessarily correspond to what "free" or
"top" reports.

-- 
B/H
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