LSF Version 7.3 - Administering Platform LSF

Administering Platform LSF 317
Fairshare Scheduling
Round-robin slot distribution—13 queues and 2 pools
◆ Pool poolA has 3 hosts each with 7 slots for a total of 21 slots to be shared. The
first 3 queues are part of the pool
poolA sharing the CPUs with proportions
50% (11 slots), 30% (7 slots) and 20% (3 remaining slots to total 21 slots).
◆ The other 10 queues belong to pool poolB, which has 3 hosts each with 7 slots
for a total of 21 slots to be shared. Each queue has 10% of the pool (3 slots).
The initial slot distribution looks like this:
bqueues
QUEUE_NAME PRIO STATUS MAX JL/U JL/P JL/H NJOBS PEND RUN SUSP
Roma 50 Open:Active - - - - 15 6 11 0
Verona 48 Open:Active - - - - 25 18 7 0
Genova 47 Open:Active - - - - 460 455 3 0
Pisa 44 Open:Active - - - - 264 261 3 0
Milano 43 Open:Active - - - - 262 259 3 0
Parma 42 Open:Active - - - - 260 257 3 0
Bologna 40 Open:Active - - - - 260 257 3 0
Sora 40 Open:Active - - - - 261 258 3 0
Ferrara 40 Open:Active - - - - 258 255 3 0
Napoli 40 Open:Active - - - - 259 256 3 0
Livorno 40 Open:Active - - - - 258 258 0 0
Palermo 40 Open:Active - - - - 256 256 0 0
Venezia 4 Open:Active - - - - 255 255 0 0
Initially, queues Livorno, Palermo, and Venezia in poolB are not assigned any
slots because the first 7 higher priority queues have used all 21 slots available for
allocation.
As jobs run and each queue accumulates used slots, LSF favors queues that have not
run jobs yet. As jobs finish in the first 7 queues of
poolB, slots are redistributed to
the other queues that originally had no jobs (queues
Livorno, Palermo, and
Venezia). The total slot count remains 21 in all queues in poolB.
bqueues
QUEUE_NAME PRIO STATUS MAX JL/U JL/P JL/H NJOBS PEND RUN SUSP
Roma 50 Open:Active - - - - 15 6 9 0