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• Synopsis: cgroup.cpuset.memory_spread_page
• Detail: Allow administrator to override the value of cpuset.memory_spread_page. The RedHat documentation discribes this as:

  cpuset.memory_spread_page

  contains a flag (0 or 1) that specifies whether file system buffers should be spread evenly across the memory nodes allocated to the cpuset. By default (0), no attempt is made to spread memory pages for these buffers evenly, and buffers are placed on the same node on which the process that created them is running.

• Default: False (zero)

• Example:

  Code Block
  title memory_spread_page
  "cpuset" : { "enabled" : true, "memory_spread_page" : false, "exclude_hosts" : ["node004"], "exclude_vntypes" : ["green_node"] },

  
  

Upgrading PBS Pro with cgroup hook:

• Migrating from versions of PBS Pro prior to 18.2 on systems that utilize systemd will leave behind subdirectories that the older cgroups hook had created.
• The presence of these directories is not harmful to newer versions of the cgroups hook.
• These directories will no longer be present after a reboot. The cgroups hook creates new directories when the exechost_startup event is handled.

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