Re: Multi-threading

[Bob Larkin <blarkin@xxxxxx>]

Well Venu, since they solved your "multi-thread" problem, maybe you would like 
to try
triggers. If PF1 only contains records that will cause jobs to be submitted, a
trigger program can be written and attached to the file. When a record is 
added, the
trigger is notified (You can specify before or after the record is writtten). 
The
trigger program could then submit the job.

Might be a good introduction to triggers.
Bob Larkin

Patrick Townsend wrote:

> Instead of submitting the jobs to a job queue, why not write the data to
> a data queue. Then you can have a number of jobs wait on the data queue
> and process the records in the queue. You can have as many jobs as you
> like wait on the data queue and they will process simultaneously. The
> QSNDDTAQ and QRCVDTAQ APIs are easy to use in both CL and RPG.
>
> Patrick
>
> VENU YAMAJALA wrote:
> >
> > Hi All,
> >
> >  I want to know how to implement multi-threaded jobs on AS400. My 
>requirement
> > is as follows :
> >
> > I have a CL program(CL1). It reads records from a physical file PF1. For 
>each
> > record of PF1, I submit a batch job with different parameters. Now the 
>driver
> > CL (CL1) pgm itself runs in batch. So after submitting CL1 in batch, if I 
>look
> > at the JOBQ, it is forking into several batch jobs (number of records in 
>PF1).
> > But each of this batch jobs are running sequentially i.e, one after the 
>other.
> > I am loosing lot of time here. I want to have a mechanism wherein, the CL1 
>pgm
> > when it is forked to several batch jobs, a specified number of the batch 
>jobs
> > run simultaneously (say 10 at a time). This way I can reduce total 
>run-time. If
> > there are 100 jobs, I can reduce the total time by more than 75%. I know 
>that
> > it is possible but missing lot of points. Can anybody guide me in this? 
>Thanx
> > in advance for any help/suggestion.
> >
> > Regards,
> > Venu
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> --
>
> Patrick Townsend                       mailto:townsend@patownsend.com
> Patrick Townsend & Associates, Inc.    http://www.patownsend.com
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