This displays the current load average of each system in the Maths compute cluster and is updated every 60 seconds. For each system, three figures are shown: the first is the load averaged over the previous 60 seconds, the second figure shows the load averaged over the previous 5 minutes and the third the load averaged over the past 15 minutes.
If a system is completely idle, the load average will be zero or close to zero. Where a load average of less than 1.00 is displayed, this means that the system is lightly loaded, has spare CPU time available and is almost certainly not running any compute jobs. A load average of around 8.00 means that the system is runing one user compute job per each of the 8 CPU cores on these systems and is using all the available CPU capacity. Load averages higher than this usually mean that more than 8 jobs are being run, each vying for CPU time on a system that is already 100% fully-loaded; it is difficult to push this figure much beyond 8 unless an operating system or disk read/write fault condition exists, in which case load averages in the hundreds have been known to occur with the system appearing largely unresponsive.
If you want to run a compute job, chose a system with a zero or near zero load average if you want the job to finish quickly!
HP DL160 server cluster (formerly the Fünf Gruppe):
macomp01: 17:05:08 up 25 days, 5:04, 1 user, load average: 2.16, 2.03, 2.01
macomp02: 17:05:17 up 90 days, 7:08, 0 users, load average: 6.05, 6.03, 6.01
macomp03: 17:05:29 up 6 days, 4:52, 0 users, load average: 5.13, 5.60, 4.13
macomp04: 17:05:43 up 38 days, 48 min, 0 users, load average: 4.00, 4.00, 3.96
macomp05: 17:05:53 up 90 days, 17:02, 0 users, load average: 2.17, 2.07, 2.01
macomp06: 17:06:03 up 186 days, 2:32, 0 users, load average: 4.02, 4.02, 4.00
macomp07: 17:06:09 up 186 days, 5:42, 0 users, load average: 0.00, 0.00, 0.00
macomp08: 17:06:16 up 186 days, 5:01, 0 users, load average: 0.00, 0.01, 0.00
HP blade systems:
mablad01: 17:07:08 up 90 days, 17:03, 1 user, load average: 6.00, 6.00, 5.96
mablad02: 17:07:18 up 90 days, 17:03, 0 users, load average: 1.16, 1.05, 1.01
mablad03: 17:07:43 up 90 days, 17:03, 0 users, load average: 1.51, 1.19, 1.07
mablad04: 17:08:11 up 7 days, 7:40, 0 users, load average: 1.95, 1.89, 2.10
mablad05: 17:08:22 up 90 days, 17:04, 1 user, load average: 2.00, 2.00, 2.00
mablad06: 17:08:46 up 90 days, 17:04, 0 users, load average: 1.70, 1.76, 1.91
mablad07: 17:09:17 up 90 days, 17:05, 0 users, load average: 2.14, 1.94, 1.96
mablad08: 17:09:44 up 90 days, 17:05, 0 users, load average: 1.37, 1.68, 1.83
mablad09: 17:10:31 up 90 days, 17:06, 0 users, load average: 2.82, 2.10, 1.93
mablad10: 17:10:42 up 90 days, 17:06, 0 users, load average: 1.00, 1.12, 1.21
Stats Linux cluster:
fallas: 17:09:07 up 114 days, 3:33, 5 users, load average: 0.00, 0.00, 0.06
festival:
festival: 03:24:16 up 5 days, 15:54, 0 users, load average: 0.00, 0.00, 0.00
fete: 17:09:57 up 99 days, 6:09, 0 users, load average: 1.00, 1.02, 1.05
fiesta: 17:10:05 up 109 days, 2:45, 0 users, load average: 0.00, 0.00, 0.00
fira: 17:10:13 up 75 days, 1:56, 0 users, load average: 0.02, 0.02, 0.05
hustler: 17:10:21 up 88 days, 4:32, 2 users, load average: 0.00, 0.00, 0.00