[slurm-users] changes in slurm.

[navin srivastava]

Thank you for the answers.

is the RealMemory will be decided on the Total Memory value or total usable
memory value.

i mean if a node having 256GB RAM but free -g will tell about only 251 GB.
deda1x1591:~ # free -g
             total       used       free     shared    buffers     cached
Mem:           251         67        184          6          0         47

so we can add the value is 251*1024 MB  or 256*1024MB.  or is there any
slurm command which will provide me the value to add.

Regards
Navin.



On Thu, Jul 9, 2020 at 8:01 PM Brian Andrus <toomuchit at gmail.com> wrote:

> Navin,
>
> 1. you will need to restart slurmctld when you make changes to the
> physical definition of a node. This can be done without affecting
> running jobs.
>
> 2. You can have a node in more than one partition. That will not hurt
> anything. Jobs are allocated to nodes, not partitions, the partition is
> used to determine which node(s) and filter/order jobs. You should add
> the node to the new partition, but also leave it in the 'test'
> partition. If you are looking to remove the 'test' partition, set it to
> down and once all the running jobs that are in it finish, then remove it.
>
> Brian Andrus
>
> On 7/8/2020 10:57 PM, navin srivastava wrote:
> > Hi Team,
> >
> > i have 2 small query.because of the lack of testing environment i am
> > unable to test the scenario. working on to set up a test environment.
> >
> > 1. In my environment i am unable to pass #SBATCH --mem-2GB option.
> > i found the reason is because there is no RealMemory entry in the node
> > definition of the slurm.
> >
> > NodeName=Node[1-12] NodeHostname=deda1x[1450-1461] NodeAddr=Node[1-12]
> > Sockets=2 CoresPerSocket=10 State=UNKNOWN
> >
> > if i add the RealMemory it should be able to pick. So my query here
> > is, is it possible to add RealMemory in the definition anytime while
> > the jobs are in progres and execute the scontrol reconfigure and
> > reload the daemon on client node?  or do we need to take a
> > downtime?(which i don't think so)
> >
> > 2. Also I would like to know what will happen if some jobs are running
> > in a partition(say test) and I will move the associated node to some
> > other partition(say normal) without draining the node.or if i suspend
> > the job and then change the node partition and will resume the job. I
> > am not deleting the partition here.
> >
> > Regards
> > Navin.
> >
> >
> >
> >
> >
> >
> >
>
>
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