Grid5000

https://www.grid5000.fr/mediawiki/index.php/Grid5000:Home

Tips and Tricks

• Access is provided via access nodes: access.SITE.grid5000.fr. As soon as you are on one of the sites, you can directly ssh frontend node of any other site: frontend.SITE2.
• Jobs are run from the frondend nodes, using a PBS-like system OAR. Basic commands:
  • oarstat - queue status
  • oarsub - job submission
  • oardel - job removal

Interactive job on deployed images:

$ oarsub -I -t deploy -l [/cluster=N/]nodes=N,walltime=HH[:MM[:SS]] [-p 'PROPERTY="VALUE"']

Batch job on installed images:

$ oarsub BATCH_FILE -t allow_classic_ssh -l [/cluster=N/]nodes=N,walltime=HH[:MM[:SS]] [-p 'PROPERTY="VALUE"']

• Each site has a separate NFS, therefore, to run an application on several sites at once, you need to copy it: scp, sftp, rsync.
• There is no access to Internet from computing nodes (external IPs should be registered on proxy), therefore, download/update your stuff at the access nodes.