Operational news of the MetaCentrum & CERIT-SC infrastructures

Operational news of the MetaCentrum & CERIT-SC infrastructures

Let us inform you about the following operational news of the MetaCentrum & CERIT-SC infrastructures:

1) Upgrade to Debian9 (@wagap-pro PBS server)
2) New special frontend/node oven.ics.muni.cz dedicated for light jobs (master/resubmitting) (@arien-pro PBS server)


1) Upgrade to Debian9 (CERIT-SC @wagap-pro)

We test new OS Debian9 on some nodes (only zewura7 at the moment) of CERIT-SC Centre. The number of machines with OS Debian9 will gradually increase. For upgrades, we will use all scheduled and unplanned outages.

To list nodes with OS Debian9 use Qsub assembler for PBSPro (set resource :os=debian9) https://metavo.metacentrum.cz/pbsmon2/qsub_pbspro

If you do not set anything, your jobs will be still (temporary) running in the default@wagap-pro queue on machines with OS Debian8. If you want to test the readiness of your scripts for a new operating system, you can use the following options:

  • To submit job on Debian9 machine, please use "os=debian9" in job specification
zuphux$ qsub -l select=1:ncpus=2:mem=1gb:scratch_local=1gb:os=debian9 …
  • Similarly for OS Debian8 use "os=debian8"
zuphux$ qsub -l select=1:ncpus=2:mem=1gb:scratch_local=1gb:os=debian8 …
  • For completeness, to run tasks on a machine with any OS, type "os = ^ any"
zuphux$ qsub -l select=1:ncpus=2:mem=1gb:scratch_local=1gb:os=^any …

If you experience any problem with libraries or applications compatibility, please, report it to meta@cesnet.cz.

Please, note OS of special machines available in special queues may differ, e.g. urga, ungu (uv@wagap-pro) and phi (phi@wagap-pro) are running on CentOS 7.

 

2) New special frontend/node oven.ics.muni.cz dedicated for light jobs (master/resubmitting) (@arien-pro PBS server)

Special node oven.ics.muni.cz with a large number of less powerful virtual CPUs is primarily designed to run performance-less (control/re-submitting) jobs. It is available through a special 'oven' queue, which is available to all MetaCentrum users.

Queue 'oven' settings:

oven.ics.muni.cz node setting

Submit example

   echo "echo hostname | qsub" | qsub -q oven 

https://wiki.metacentrum.cz/wiki/Oven_node

 


Ivana Křenková, Thu Oct 26 15:35:00 CEST 2017