[GE users] Array jobs with each job in a separate host?

Borja Sotomayor borja at borjanet.com
Fri Aug 4 01:49:53 BST 2006


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Hi everyone,

I am running into the following problem: I want to submit an array job 
in such a way that each task runs on a separate host. I realize one 
possible solution is to set the number of slots to 1, or use a solution 
along the lines of this:

http://gridengine.info/articles/2005/09/22/allowing-user-jobs-to-take-over-entire-nodes

However, in my case, I still want to allow other array jobs to run at 
the same time. e.g. If I have four nodes {A,B,C,D} and I submit an array 
job with 3 tasks which end up in {A,B,C}, and then submit the same array 
job with 2 tasks, I want to allow one of the tasks to be scheduled in 
those three nodes (instead of having to wait for them to become available).

In other words, I want to guarantee exclusive use of a host *inside* an 
array job, but not across other jobs. Is this possible?

Cheers!
-- 
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Borja Sotomayor, University of Chicago
  Ph.D. Student, Department of Computer Science
  Hinds 016, 5734 South Ellis Avenue, 60637 Chicago, IL
GT4 Tutorial: http://gdp.globus.org/gt4-tutorial/
BorjaNet:  http://www.borjanet.com/   borja at borjanet.com
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          "Dis maschine vill run und run!"
                -- Kurt Gödel (on the Turing Machine)
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