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To me that is what the multiple priorities are for. Those jobs that you
are sure will not cause conflict can be submitted with a priority that
allows multiple jobs. Those with questions or with know issues run at a
"max by priority" of 1. For me this allows submission of small transaction
processing jobs that need to run immediately but I don't want to tie up a
tube to run it interactively.

Jim Horn


message: 4
date: Thu, 06 May 2010 13:46:33 -0700
from: "James H. H. Lampert" <jamesl@xxxxxxxxxxxxxxxxx>
subject: Why do people set up their batch submission defaults to run
multiple batch jobs at the same time?

I admit that it can be nice not to have to wait for another user to
notice his or her locked-up compilation job, but what if you've got two
batch-by-design jobs that could get into a fight with each other if
allowed to run concurrently?

For probably the fourth or fifth time, I had to clean up a mess that was
partly caused by two batch jobs (running the same program!) getting into
exactly that sort of fight, for exactly that reason.

Isn't "running jobs sequentially, one at a time" the essence of batch
processing?

Why it took me until now to fix it so that they'd be explicitly run
through a "normal" batch queue instead of the default "abby-normal" one,
I dunno.

--
JHHL


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