PriorityParameters      = (null)
PriorityDecayHalfLife   = 14-00:00:00
PriorityCalcPeriod      = 00:05:00
PriorityFavorSmall      = No
PriorityFlags           = FAIR_TREE
PriorityMaxAge          = 14-00:00:00
PriorityUsageResetPeriod = NONE
PriorityType            = priority/multifactor
PriorityWeightAge       = 1000
PriorityWeightFairShare = 1000
PriorityWeightJobSize   = 1000
PriorityWeightPartition = 1000
PriorityWeightQOS       = 1000
PriorityWeightTRES      = (null)

scontrol show config |grep -i prio

• takes into account all siblings on the same level.
• better balancing within one account, i.e. users of one account still get a high priority even if their usage is larger than their colleague users within the same account

• shows the shares and usages of accounts and users
• only if multifactor/priority plugin is enabled
• reset the usage for an account:

sacctmgr modify account vsctest set RawUsage=0

• RawShares: This is the set value when creating the account
• RawUsage: Usage of the account user; suspected to the PriorityDecayHalfLife
• Effctv Usage: normalized usage + siblings taken into account
• FairShare: Factor actually used for calculating the new priority

• priority from plugin:

PRIORITY_MF =  AGE + FAIRSHARE + JOBSIZE + PARTITION + QOS + TRES

• only contributions if weight in slurm.conf > 0

• total priority:

PRIORITY = PRIORITY_MF - NICE

• lower negative values means higher priority
• range is +/- 2147483645.
• only privileged users can specify a negative adjustment.

Only for pending jobs:

sprio -l

Set priority explicitly (overrides nice and multifactor):

scontrol update job <job_id> priority=1

Restore multifactor:

• hold job
• release job

• limit number of cores and/or memory