[slurm-users] Slurm Constraints handling

[Götz Waschk]

Hi everyone,

I was wondering how slurm is handling constraints.

I have a setup  with 32 nodes, pax11[00-31]. The first four machines
are for I/O and have 10G network interfaces. I have marked them in the
slurm.conf node configuration with
Feature=10g



Now I'm running test jobs with -N 8 --constraint=10g*1 so in theory,
four of these jobs could run at the same time. Intead, only one is
running at a time, it is assigned to
pax11-[00-07]. Is there a way to convince the scheduler to assign the
nodes like this instead?
pax11-00,pax11-[04-10]
pax11-01,pax11-[11-17]
pax11-02,pax11-[18-24]
pax11-03,pax11-[25-31]

Regards, Götz