topic Re: Parallel processing validation in Application Development and Automation Discussions

Parallel processing validation

former_member576008 — Tue, 10 Sep 2013 07:00:12 GMT

Hi,

I have developed a report using parallel processing, I was able to get the results if scheduled in back ground mode.

Now I want to know how to validate whether parallel processing is working or not, that is more than one process are being executed.

While debugging I can see my data is sent to RFC in packets and multiple update tasks are created.

But how to know multiple work process are assigned to it.

Please help on this.

Regards,

Neeraj

Re: Parallel processing validation

Former Member — Tue, 10 Sep 2013 07:11:33 GMT

Try checking it in SM51.

Re: Parallel processing validation

Former Member — Tue, 10 Sep 2013 07:19:30 GMT

Hi,

Go to SM51 and check which application server this job is assigned there you can go and debug.

the debug option you can find in

Program?session--->program--->debug.

Thanks,

Dinesh.

Re: Parallel processing validation

Former Member — Tue, 10 Sep 2013 07:30:07 GMT

Hi Neeraj,

You can see the work process in SM50,

Check these links;

http://help.sap.com/saphelp_nw04/helpdata/en/c4/3a5f87505211d189550000e829fbbd/content.htm

http://help.sap.com/saphelp_nw04/helpdata/en/69/c24e104ba111d189750000e8322d00/content.htm

http://www.sap-perf.ca/run-sap-sm50-sm66/

Hope this will help you.

Thanks & Regards

Re: Parallel processing validation

former_member576008 — Tue, 10 Sep 2013 07:32:41 GMT

Hi Dinesh,

I don't want to debug, I want to see number of work process are running for my job.

As suggested by Murugesh, I will check in SM51.

Regards,

Nandha

Re: Parallel processing validation

former_member576008 — Tue, 10 Sep 2013 07:49:33 GMT

Hi Murugesh,

When I scheduled my report in BG and checked in SM50, there are 2 process are running under my name.

first one is type BGD, status is On hold and reason column has ARFC. second process type is DIA status is running and in action its showing sequential read of the table I have used.

But, with the test data, I am getting 28 line items, for which I am sending 10 to RFC, so 3 RFC calls should happen and 3 work process should be started right.

Correct me if I am wrong and share your thoughts.

Regards,

Neeraj

Re: Parallel processing validation

former_member576008 — Tue, 10 Sep 2013 10:27:40 GMT

Any hints on this will be helpful.

Re: Parallel processing validation

Former Member — Tue, 10 Sep 2013 10:42:45 GMT

It is possible that by the time you check SM50, 2 out of 3 tasks have finished.

Perhaps you can write wait 30 seconds statement in remote FM, so that you have enough time to check the tasks in SM50.

Re: Parallel processing validation

Former Member — Tue, 10 Sep 2013 10:46:58 GMT

With this FM TH_SYSTEMWIDE_WPINFO,you can see all the workprocess running just filter it with your program name.

Regrads,

Supratik

Re: Parallel processing validation

former_member576008 — Tue, 10 Sep 2013 11:09:14 GMT

nice, I will try this and get back to you.

Re: Parallel processing validation

former_member576008 — Tue, 10 Sep 2013 11:34:43 GMT

Hi Manish,

even though I add wait for 30 seconds, its showing only one process. any other reason?

Re: Parallel processing validation

Former Member — Tue, 10 Sep 2013 11:55:05 GMT

Go through following link. As Manish said you may miss things in SM51. I would recommend you record the process parameters by generating a simple list output. The link below has a nice example program which will help you understand parallel processing.

http://help.sap.com/saphelp_nw70/helpdata/en/fa/096e92543b11d1898e0000e8322d00/content.htm

Re: Parallel processing validation

RaymondGiuseppi — Tue, 10 Sep 2013 12:31:43 GMT

Did you use a group like parallel_generators in the CALL FUNCTION STARTING NEW TASK syntax. If yes, then execute transaction RZ12 to determine how many processes can be executed simultaneously.

Regards,

Raymond

Re: Parallel processing validation

Former Member — Tue, 10 Sep 2013 12:32:30 GMT

It means either parallel process is not working, or only 1 task is fired for 28 items.

Use write statements to print start of FM call, and also print the records passed to it.

That way you would know whether 1 FM call is taking place or 3.

It would also be helpful if you post full code snippet as zipped attachment.

Re: Parallel processing validation

former_member576008 — Tue, 10 Sep 2013 12:34:10 GMT

Hi Mrugesh,

"record the process parameters by generating a simple list output",

In this do I need to print the process names or update task name, could you please explain this in detail. Thanks

Re: Parallel processing validation

former_member576008 — Tue, 10 Sep 2013 12:46:38 GMT

Hi Raymond & Manish,

I have attached the code snippet, please suggest if I am wrong any where.

In debugging mode it is making 3 RFC calls.

Regards,

Neeraj

Re: Parallel processing validation

Former Member — Tue, 10 Sep 2013 12:58:57 GMT

Code looks ok.

Use write statements to confirm how many FM calls are taking place, and how much data is being passed.

Re: Parallel processing validation

ThomasZloch — Tue, 10 Sep 2013 13:41:05 GMT

How do you determine "gv_jobnum" ? Are you sure its value is not "1" by any chance, meaning only 1 dialog process will be used?

Otherwise I can only repeat what was suggested, write all these global counters out and post the resulting list here.

Thomas

Re: Parallel processing validation

former_member576008 — Tue, 10 Sep 2013 13:53:53 GMT

Hi Raymond,

I have attached the RZ12 screen shot, in that I can see Minimum Number of Free WPs as 1.

Is this the reason, only one WP is being executed, kindly guide on this.

Re: Parallel processing validation

former_member576008 — Tue, 10 Sep 2013 14:17:40 GMT

Hi Thomas,

Yes, there is a mistake in that, I am correcting the logic. Will post when done.

thanks.