Re: [slurm-users] Slurm configuration, Weight Parameter
On 23/11/19 9:14 am, Chris Samuel wrote: My gut instinct (and I've never tried this) is to make the 3GB nodes be in a separate partition that is guarded by AllowQos=3GB and have a QOS called "3GB" that uses MinTRESPerJob to require jobs to ask for more than 2GB of RAM to be allowed into the QOS. Of course there's nothing to stop a user requesting more memory than they need to get access to these nodes, but that's a social issue not a technical one. :-) -- Chris Samuel : http://www.csamuel.org/ : Berkeley, CA, USA
Re: [slurm-users] Slurm configuration, Weight Parameter
On 21/11/19 7:25 am, Sistemas NLHPC wrote: Currently we have two types of nodes, one with 3GB and another with 2GB of RAM, it is required that in nodes of 3 GB it is not allowed to execute tasks with less than 2GB, to avoid underutilization of resources. My gut instinct (and I've never tried this) is to make the 3GB nodes be in a separate partition that is guarded by AllowQos=3GB and have a QOS called "3GB" that uses MinTRESPerJob to require jobs to ask for more than 2GB of RAM to be allowed into the QOS. All the best, Chris -- Chris Samuel : http://www.csamuel.org/ : Berkeley, CA, USA
Re: [slurm-users] Force a use job to a node with state=drain/maint
On 23/11/19 8:54 am, René Neumaier wrote: In general, is it possible to move a pending job (means forcing as root) to a specific node which is marked as DRAIN for troubleshooting? I don't believe so. Put a reservation on the node first only for this user, add the reservation to the job then resume the node. All the best, Chris -- Chris Samuel : http://www.csamuel.org/ : Berkeley, CA, USA
[slurm-users] Force a use job to a node with state=drain/maint
Hello everyone! In general, is it possible to move a pending job (means forcing as root) to a specific node which is marked as DRAIN for troubleshooting? I know, it's not what "DRAIN" normally means. Maybe the reservation is the way to go. But how can I force/forward a specific user job which is in pending at the same partition? Best regards and thanks a lot, René -- _ René Neumaier Systemadministration LMU München Department für Geo und Umweltwissenschaften, Paläontologie & Geobiologie Richard-Wagner-Str. 10 D-80333 München Tel.: +4989-2180-6625 Fax.: +4989-2180-6601 rene.neuma...@lmu.de r.neuma...@lrz.uni-muenchen.de GPG-Fingerprint: EC0E B6F6 B3FF 6324 B0C8 9452 EF6B 4E3C 2E59 F5AA
Re: [slurm-users] Environment modules
Agreed, I have just been setting up Lmod on a national compute cluster where I am a non-privileged cluster and on an internal cluster where I have full rights. It works very well, and Lmod can read theTcl module files also. The most recent version has some extra features specially for Slurm. An I use EasyBuild, saves hundreds of hours of effort. I do quite often have to hand create simple module files for software with no EasyConfig but I can just copy the structure from module files created by EasyBuild so it has never been a great problem. The best bit of modules is being able to offer multiple conflicting versions of software like Java, Perl, R etc. William On Sat, 23 Nov 2019 at 03:57, Chris Samuel wrote: > On 22/11/19 9:37 am, Mariano.Maluf wrote: > > > The cluster is operational but I need to install and configure > > environment modules. > > If you use Easybuild to install your HPC software then it can take care > of the modules too for you. I'd also echo the recommendation from > others to use Lmod. > > Website: https://easybuilders.github.io/easybuild/ > Documentation: https://easybuild.readthedocs.io/ > > All the best, > Chris > -- > Chris Samuel : http://www.csamuel.org/ : Berkeley, CA, USA > >
