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Difference between JES2 and JES3

 
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MFuser2

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Joined: 04 Mar 2005
Posts: 3
Location: noida

PostPosted: Fri Mar 04, 2005 6:03 pm    Post subject: Difference between JES2 and JES3
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what is the exactly difference between thw jes2 and jes3.
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mcmillan

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Joined: 18 May 2003
Posts: 1203
Location: India

PostPosted: Fri Mar 04, 2005 6:59 pm    Post subject: Re
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JES2:

Code:
If you are in a multiprocessor environment, each processor?s JES2 Subsystem independently controls the job inputs, scheduling and output datasets.

In JES2, allocation of datasets required by a step are done only just before the step executes.


JES3:

Code:
Using a common JOB queue and centralized control over the local processors, JES3 Subsystem distributes the job inputs to them.

JES3 allocates datasets for all the steps before the job is scheduled
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