Three hosts, 4 CPUs each: qat24, qat25, and qat26. Job 11895 uses 4 slots on qat24 (10 hours). Job 11896 uses 4 slots on qat25 (12 hours), and job 11897 uses 2 slots on qat26 (9 hours).
Job 11898 is submitted and requests -n 6 -R "span[ptile=2]".
bjobs -l 11898
Job <11898>, User <user2>, Project <default>, Status <PEND>, Queue <challenge>,
Job Priority <50>, Command <sleep 100000000>
...
RUNLIMIT
840.0 min of hostA
Fri Apr 22 15:18:56 2010: Reserved <2> job slots on host(s) <2*qat26>;
Sat Apr 23 03:28:46 2010: Estimated Job Start Time;
alloc=2*qat25 2*qat24 2*qat26.lsf.platform.com
...Two cpuset hosts, mstatx00 and mstatx01, 8 CPUs per host. Job 3873 uses 4*mstatx00 and will last for 10 hours. Job 3874 uses 4*mstatx01 and will run for 12 hours. Job 3875 uses 2*mstatx02 and 2*mstatx03, and will run for 13 hours.
Job 3876 is submitted and requests -n 4 -ext "cpuset[nodes=2]" -R "rusage[mem=100] span[ptile= 2]".
bjobs -l 3876
Job <3876>, User <user2>, Project <default>, Status <PEND>, Queue <sq32_s>, Command <sleep 33333>
Tue Dec 22 04:56:54: Submitted from host <mstatx00>, CWD <$HOME>, 4 Processors Requested,
Requested Resources <rusage[mem=100] span[ptile= 2]>;
...
RUNLIMIT
60.0 min of mstatx00 Tue Dec 22 06:07:38: Estimated job start time; alloc=2*mstatx01 2*mstatx00 ...Rerun example 1, but this time, use greedy slot reservation instead of time-based reservation:
bjobs -l 3876
Job <12103>, User <user2>, Project <default>, Status <PEND>, Queue <challenge>,
Job Priority <50>, Command <sleep 1000000>
Fri Apr 22 16:17:59 2010: Submitted from host <qat26>, CWD <$HOME>, 6 Processors Req
uested, Requested Resources <span[ptile=2]>;
...
RUNLIMIT
720.0 min of qat26
Fri Apr 22 16:18:09 2010: Reserved <2> job slots on host(s) <2*qat26.lsf.platform.com>;
Sat Apr 23 01:39:13 2010: Job will start no sooner than indicated time stamp;
...