Hi Bjørn-Helge, I think this was fixed in commit 837c360 [1], which is in 14.11.x versions.
[1] https://github.com/SchedMD/slurm/commit/837c360f671142f36a434235a7c8488631e481de Cheers, -- Kilian On Tue, Mar 17, 2015 at 6:50 AM, Bjørn-Helge Mevik <[email protected]> wrote: > > While testing new Linux kernels on our cluster, we got messages like > this in /var/log/messges: > > Feb 27 11:21:55 compute-15-1 kernel: cgroup: slurmstepd (10089) created > nested cgroup for controller "memory" which has incomplete hierarchy support. > Nested cgroups may change behavior in the future. > Feb 27 11:21:55 compute-15-1 kernel: cgroup: "memory" requires setting > use_hierarchy to 1 on the root. > > > Is this something we should worry about? > > > We run Slurm 14.03.7, and we got the messages with kernel > versions 3.8.13-55.1.5.el6uek.x86_64 and 3.19.1-1.el6.elrepo.x86_64. > > We use cgroups to limit the memory jobs can use. Our cgroup.conf > contains: > > CgroupMountpoint=/dev/cgroup > CgroupAutomount=yes > ConstrainSwapSpace=yes > > and our slurm.conf contains: > > TaskPlugin=task/cgroup > ProctrackType=proctrack/cgroup > SelectType=select/cons_res > SelectTypeParameters=CR_CPU_Memory > > > > -- > Regards, > Bjørn-Helge Mevik, dr. scient, > Department for Research Computing, University of Oslo -- Kilian
