[CRIU] New CRIU plugin for Slurm

[Pavel Emelyanov]

On 08/30/2016 03:16 PM, Manuel Rodríguez Pascual wrote:
> Hi all,
> 
> After working together with CRIU developers, my team at CIEMAT has
> developed a CRIU plugin from Slurm workload manager
> (http://slurm.schedmd.com/slurm.html). This way, Slurm can employ this
> checkpoint/restart library to perform these operations.
> 
> It is stored in my personal github account,
> https://github.com/supermanue/slurm/tree/criuPlugin , as a branch of a
> fairly new Slurm version.
> 
> Regarding the code, it is basically a clone of BLCR plugin modified to
> CRIU requirements and functionality. It comprises:
> 
> - the plugin itself, stored in src/plugins/checkpoint/criu
> - a new "--with-criu" compilation flag (plus the related files) so a
> user can specify criu location if it is not the default one
> - a modification in the SPANK behaviour (spank.h and plugstack.c) so a
> spank plugin can get the location of the Slurm checkpoint folder
> calling spank_get_item with "S_CHECKPOINT_DIR"
> - some minor changes in other compilation-related files
> 
> We hope that this can be useful for the Slurm community.  Feel free to
> test and use it :) And of course, any feedback (comment, criticism) is
> welcome.

Awesome! Thanks a lot for this work!

Would you point us to some HOWTO describing the simplest way to check
how Slurm and C/R functionality work together?

-- Pavel