[slurm-users] SelectTypeParameters=CR_Core_Memory

[Antonis Potirakis]

Suppose a slum configuration with
-Number of Nodes=1, number of cores=20, memory=128GB
-SelectType=select/cons_res
-SelectTypeParameters=CR_Core_Memory

1) Is OverSubscribe=NO the default value generally?
2) Does OverSubscribe=NO mean that at each core only one job can be
allocated but at the same node i can have different jobs allocated at
different cores?
3) In sbatch --mem and --mem-per-cpu are mutually exclusive. This means
that each time i can use only one of them? What if i use them both in
sbatch command?
4) Sbatch documentation says that for SelectType=select/cons_res the
--mem-per-cpu parameter should generally be used (instead of --mem that
should be used in SelectType=select/linear). What if --mem parameter is
used in SelectType=select/cons_res? For example, i run a job with sbatch in
one node, with only 1 core (1 task per cpu) and --mem=125GB. How much
memory will it use? (suppose no other job is running)
5) If DefMemPerCPU and MaxMemPerCPU are not set in slurm.conf, then what
are the default values?

Thanx a lot
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