Moving to AlmaLinux 9

As CentOS 7 has reached its end of life on the 30th June, the Tier-1 computing farm is planning to update the Operating System on all user-interfaces and worker-nodes to AlmaLinux 9 by the end of the year.

To ease the transition to the new OS we prepared a new general-purpose user-interface (ui9-tier1.cr.cnaf.infn.it) where users can test their software and workflows.

Test submission on AlmaLinux 9

As some worker-nodes are already running the new OS users can request to run on those machines by including this line in their submit files:

+SingularityImage = false

Please find below an example of submit file to test the submission on Alma9 machines. 

$ cat submit-alma9.sub
# Unix submit description file
# sleep.sub -- simple sleep job

+SingularityImage = false

batch_name              = Alma9-Sleep
executable              = sleep.sh
arguments               = 60
log                     = $(batch_name).log.$(Cluster).$(Process)
output                  = $(batch_name).out.$(Cluster).$(Process)
error                   = $(batch_name).err.$(Cluster).$(Process)
should_transfer_files   = Yes
when_to_transfer_output = ON_EXIT

queue

Keep executing jobs on CentOS7

To keep submitting jobs on CentOS7 worker nodes users can use the feature described here specifying in the submit file: +SingularityImage="cnaf-el7".

This will allow you to run your job inside a singularity image identical to CentOS7 worker-nodes.