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[condor-users] Richer MatchMaking in CondorG
- Date: Mon, 31 May 2004 15:08:00 -0700
- From: Rod Walker <rwalker@xxxxxx>
- Subject: [condor-users] Richer MatchMaking in CondorG
I think the the richer matchmaking functions in the MMS library, such as
lists and RegExp, are not yet in the CondorG package - still correct? On
the Canadian Grid testbed we are at the stage of needing this
functionality to do things like checking the user subject is in the
authorized list, and I was wondering what the schedule for it`s
inclusion in CondorG was.
I think I know the answer will be not imminently, so we have a
workaround - using the external C function trick. I have succesfully
tested this for inclusion in the Rank attribute, but have never got it
to work when the function call is included in the Requirement attribute.
I was told that this should work, but my test function never gets run.
On an unrelated issue, we have a delicate resource (with GPFS shared
files systems, without attributing blame) which struggles when many jobs
are simultaneously submitted through the gatekeeper. I tried to contol
submission with these macros on the scheduler but got suprising results
Only 5 jobs are submitted and the rest wait until 1 finishes, which is
as expected. I thought the 2nd line would limit the simultaneous submits
to 1, but I still see many jobmanagers as if 5 are submitted at once.
Have I misunderstood this macro?
The underlying problem is that a single gatekeeper submission results in
O(100) small files being created in the gass cache, which causes
problems with the shared FS. Anybody's guess why 100's of files are needed!
Rod Walker +1 6042913051
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