[slurm-users] memory per node default

[Ole Holm Nielsen]

On 1/21/22 10:05, Diego Zuccato wrote:
> Il 21/01/2022 07:51, Ole Holm Nielsen ha scritto:
> 
>> There's a nice command to run on any given node which tells you slurmd's 
>> view of the node:
>> $ slurmd -C
>> NodeName=i004 CPUs=16 Boards=1 SocketsPerBoard=2 CoresPerSocket=8 
>> ThreadsPerCore=1 RealMemory=128691
>> UpTime=36-17:32:44
>> Here's an example that I use:
>> NodeName=i[004-030] Sockets=2 CoresPerSocket=8 ThreadsPerCore=1 
>> RealMemory=128000
> @Hoot: note that the line in slurm.conf uses a lower value for RealMemory. 
> This way you'll avoid having nodes going offline after an upgrade because 
> the new kernel leaves a couple free MBs less than older one (been there, 
> done that... :( ).

@Diego: Thanks for reminding me of this!  I've added this information to 
my Wiki page
https://wiki.fysik.dtu.dk/niflheim/Slurm_configuration#compute-node-configuration

/Ole