CCMST Weekly News, September 17 2010

Center for Computational Molecular Science and Technology

1. Announcements2. Statistics3. Tip of the Week
ANNOUNCEMENTS

Physical Chemistry Seminar Series
September 21, 2010 4:00 PM – 5:00 PM MS&E 3201AProf. Ralph Jimenez, University of Colorado at BoulderUltrafast spectroscopy and microfluidics-based methods for investigating protein dynamics

STATISTICS

FGATE
Uptime: 37 days/home directory usage: 73% (1.6 TB available)/backups directory usage: 84%
LSF usage for Week 36 (9/6-9/12) (times are in minutes)
GroupJobsTotal CPUAvg CPU Avg WaitAvg Trnr.
Bredas
59
117612
6%
1993
595
4190
Hernandez
1875
477036
25%
254
50
305
Sherrill
183
378039
20%
2066
10502
12573
Other
3
25307
1%
8436
144
8011
Total
2120
997989
52%
471
967
1483
Note: percentages refer to the total CPU time available for the period.
Most productive user of the Week: kennedy 378005.
EGATE
Uptime: 292 days/theoryfs/common directory usage: 36% (428GB available)/theoryfs/ccmst directory usage: 85% (136 GB available)
LSF usage for Week 36 (9/6-9/12) (times are in minutes)
GroupJobsTotal CPUAvg CPUAvg WaitAvg Trnr.
Hernandez
225
60190
4%
268
1
276
Sherrill
960
417861
28%
435
42
436
Other
26
34967
2%
1345
0
1351
Total
1211
513018
34%
424
34
426
Note: percentages refer to the total CPU time available for the period.
Most productive user of the Week: sahan 233638.

TIP OF THE WEEK

By Massimo
Cluster-fork
Cluster-fork is an utility that can be used to execute commands on the compute nodes of a cluster managed by Rocks (i.e. egate and fgate). For example, to list all your processes  on the compute nodes of the cluster type:
cluster-fork ps -U$USER
Cluster-fork uses ssh to launch the chosen task serially on each compute node, ignoring the nodes that are down. By default the job is blocking: cluster-fork will wait for the command on one node to be executed before starting the job on another node. This behavior can be altered with the --bg option. This will start the jobs in the background:
cluster-fork --bg hostname
To select the cluster nodes on which to execute the command, use the --nodes option followed by the list of compute nodes where to run the command. A range of nodes can be specified with a shorhand notation:
Continuous range: --nodes=compute-0-%d:0-2 -->  compute-0-0 compute-0-1 compute-0-2
Discontinuous range: compute-0-%d0,2-3 --> ...

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