[slurm-users] slurm reboot node with spank plugin

Chris Samuel chris at csamuel.org
Wed May 9 05:39:35 MDT 2018

On Wednesday, 9 May 2018 9:16:37 PM AEST Tueur Volvo wrote:

> if i use srun --reboot hostname, how to tell him to update the kernel before
> rebooting ?

Ah, now I understand why you mention a spank plugin, as that would allow you 
to specify a new command line option for sbatch to specify a kernel and then 
somehow talk to your cluster management system to provision a node with that 
configuration, is that right?

The KNL code might provide some ideas there as that needs to reboot nodes to 
change hardware configuration and has to get slurmd to run code on the node 
first to change the BIOS settings for the desired HBM mode. 

The BlueGene/Q code allowed users to select an image to boot, but that relies 
on a heap of IBM code that is designed for their defunct BG/Q systems (sigh).

> if I understand what you mean, I have to use a job-submit plugin ?

That's what I was thinking, but now you've mentioned what you want to do I'm 
not so sure it's a good fit.

All the best,
 Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC

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