LSF_REPLACE_PIM_WITH_LINUX_CGROUP
Minimizes the impact of PIM daemon processing overhead on parallel jobs.
Syntax
LSF_REPLACE_PIM_WITH_LINUX_CGROUP=y|Y|n|N
Description
PIM collects job processes, the relationship among all processes, the memory usage of each process, and the CPU time of each process periodically. Those actions can influence the execution of parallel jobs (so-called OS jitter). To minimize OS jitter, you can configure the LSF cgroup feature. Linux cgroups function similarly to PIM, but can generates less OS jitter than PIM. The LSF_REPLACE_PIM_WITH_LINUX_CGROUP parameter lets you choose which way you want to generate job process information.
The LSF cgroup feature does not support PAM jobs, so you cannot disable PIM if you run PAM jobs.
- LSF_PROCESS_TRACKING=Y
- LSF_LINUX_CGROUP_ACCT=Y
- LSF_PROCESS_TRACKING=y
- LSB_RESOURCE_ENFORCE=memory
The LSB_RESOURCE_ENFORCE=memory parameter enables memory and cgroup CPU accounting by default.
Default
N