OpenPBS cgroups v2 support

Hi all

We have a need for cgroups v2 functionality on our pbs managed cluster.
We are currently using pbs_version = 19.1.3. However when we disable cgroups v1 with a kernel parameter and run the job it says cgroups is not available.

pbs_python;main: Cgroups disabled or none to manage

I can see in the release notes of OpenPBS v20.0.0 that they “enhanced cgroup functionality”, what do they mean with this?

Kind regards

Hi! “enhanced cgroup functionality” means we’ve added options in the pbs_cgroups hook config file that offers:

  • flexible configuration for heterogeneous clusters
  • control of memory.swappiness
  • support for “cpu” subsystem

as well as replacement of old cpuset MOM on HPE systems.

What @bayucan said is accurate for cgroups v1. Support for cgroups v2 is not currently available.