One solution might be to have the submission process pause a modest
number of seconds before submitting the next job, attempting to insure
that JES has finished converting the current job before it even sees the
next one.

-----Original Message-----
From: Dave Salt 
Sent: Tuesday, February 10, 2009 1:30 PM
To: [email protected]
Subject: JCL job execution order

I'm trying to help someone create a process that will automatically
submit several jobs at a time. For example, it might submit 20 jobs
right after each other, with only a fraction of a second between each
job. It's very important that the jobs execute in the same sequence in
which they were submitted. For example, if the automated process submits
jobs AAA, BBB and CCC, then job AAA must finish executing before job BBB
begins to execute (and so on).
 
I was under the impression that I could force jobs to execute in the
desired sequence by simply using the same job card for each job. For
example, if every job began with this job card:
 
//useridX JOB
 
Then all of the submitted jobs would have the same job letter (i.e.
'X'). As far as I know this means only one of the jobs would execute at
a time. What I'm less sure of is that job AAA would be guaranteed to
start executing before job BBB? For example, if job AAA is submitted a
fraction of a second before job BBB, and both jobs have the jobcard
shown above, is it guaranteed that job AAA will start executing first?
If it's NOT guaranteed, is there some way to force the jobs to execute
in the same sequence as they were submitted?
 
Note that:
 
1) It doesn't matter if job AAA is successful or not. All I want is to
ensure that job BBB doesn't start executing until job AAA has finished.
 
2) It would be difficult to combine the jobs into a single job; i.e. it
is preferable to submit each job separately.
 
3) These are not production jobs; i.e. they are jobs being submitted on
an irregular basis by a user. The user does not have access to any kind
of job scheduler.
 

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