Difference between revisions of "Condor"
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slot1@geog-c200.gg WINNT51 INTEL Unclaimed Idle 0.000 1662 0+00:00:04 | slot1@geog-c200.gg WINNT51 INTEL Unclaimed Idle 0.000 1662 0+00:00:04 | ||
slot2@geog-c200.gg WINNT51 INTEL Unclaimed Idle 0.040 1662 0+00:00:00 | slot2@geog-c200.gg WINNT51 INTEL Unclaimed Idle 0.040 1662 0+00:00:00 | ||
| + | ... | ||
... | ... | ||
Total Owner Claimed Unclaimed Matched Preempting Backfill | Total Owner Claimed Unclaimed Matched Preempting Backfill | ||
| Line 26: | Line 27: | ||
Total 191 78 109 4 0 0 0 | Total 191 78 109 4 0 0 0 | ||
</pre> | </pre> | ||
| + | |||
| + | Typically you will get several screen's full of output, so I've chopped out the middle part of the listing, leaving just a few at the top and the final summary, given at the end. | ||
| + | |||
| + | From the listing, you can see that the PC called 'GEOG-B224' has someone logged into it, indicated by the keyword '''Owner''', but it is not working hard, as it is '''Idle'''. In contrast, the PC named 'geog-a105' is marked as '''Claimed''', indicating that it has been grabbed by condor, and it working hard, '''Busy'''. The third possible state is shown for 'geog-c200', which is not logged into or claimed by condor, i.e. '''Unclaimed''', and is--of course---'''Idle'''. | ||
| + | |||
| + | The final summary tells us that at the time of writing, the pool contains 191 PCs, 78 of which has a user logged in, 109 are claimed by condor and 4 remain unclaimed. | ||
=Submitting a simple script job= | =Submitting a simple script job= | ||
Revision as of 13:05, 22 April 2009
Condor: Making best use of the computers in the teaching labs
Introduction
The Condor Project enables us to run batch jobs on the desktop computers around the department, that would otherwise be standing idle. Condor is particularly useful for high 'throughput' computing, such as an ensemble of independent model simulations, used to evaluate explore parameter-space.
Basic commands
Our 'submission host' is condor.ggy.bris.ac.uk. If you login to that machine, you can review the status of all the machines in the 'condor pool' using the command condor_status:
Name OpSys Arch State Activity LoadAv Mem ActvtyTime
slot1@GEOG-B224.gg WINNT51 INTEL Owner Idle 0.000 1661 0+01:30:04
slot2@GEOG-B224.gg WINNT51 INTEL Owner Idle 0.010 1661 0+01:30:05
slot1@geog-a105.gg WINNT51 INTEL Claimed Busy 1.130 1661 0+01:02:57
slot2@geog-a105.gg WINNT51 INTEL Claimed Busy 1.130 1661 0+01:02:58
slot1@geog-c200.gg WINNT51 INTEL Unclaimed Idle 0.000 1662 0+00:00:04
slot2@geog-c200.gg WINNT51 INTEL Unclaimed Idle 0.040 1662 0+00:00:00
...
...
Total Owner Claimed Unclaimed Matched Preempting Backfill
INTEL/WINNT51 191 78 109 4 0 0 0
Total 191 78 109 4 0 0 0
Typically you will get several screen's full of output, so I've chopped out the middle part of the listing, leaving just a few at the top and the final summary, given at the end.
From the listing, you can see that the PC called 'GEOG-B224' has someone logged into it, indicated by the keyword Owner, but it is not working hard, as it is Idle. In contrast, the PC named 'geog-a105' is marked as Claimed, indicating that it has been grabbed by condor, and it working hard, Busy. The third possible state is shown for 'geog-c200', which is not logged into or claimed by condor, i.e. Unclaimed, and is--of course---Idle.
The final summary tells us that at the time of writing, the pool contains 191 PCs, 78 of which has a user logged in, 109 are claimed by condor and 4 remain unclaimed.