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- *************************************
- * *
- * S U B T *
- * ON THE MVS/XA OPERATING SYSTEM *
- * *
- *************************************
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- John S. Ward
- 03/18/93
-
- EJECT
-
- SUBJECT: NEW SUBT MACRO FOR SUBMITTING JCL FROM DATE:02/01/93
- ISPF/PDF EDIT
-
- Due to the new CPU time batch restrictions on the MVS system, a new
- ISREDIT MACRO called SUBT has been written. It works very much like
- the SUB command for submitting a JCL program from the edit panel in
- ISPF/PDF. The purpose of SUBT is to simplify the task of specifying
- a CPU time limit for a job you submit directly out of edit. With the
- new batch time restrictions if time is not specified on the job card
- of a batch job, the system will set time to the maximum value and your
- job will not run until after-hours.
-
- The way SUBT accomplishes this is by building a job card for you and
- temporarily inserting it on top of your code. For this reason your
- job stream can not already contain a job card. Unlike the SUB command
- which checks for the existence of a job card before creating one, SUBT
- will just insert another one. So if you already have a job card on
- your JCL run stream, make sure you have coded the time parameter and
- use the Sub command as usual.
-
- When entered from the command line while in edit mode, SUBT builds
- your job card for you with a default time of 5 CPU seconds. A job with
- a time of 5 seconds or less has the maximum chance of beginning
- execution quickly. See the member BATCHCPU in SYS.MVS.UPDATE for more
- information on coding the time parameter for the batch job time
- control. SUBT will also set the jobname on your job card to your
- userid plus 'X' as the default, but you can override both of these
- defaults if you wish.
-
- The syntax for the SUBT is as follows:
-
- SUBT - A job card will be created with your userid plus
- 'X' and a time value of 5 seconds. (both defaults)
-
- SUBT B - A job card will be created with your userid plus
- 'B' and a time value of 5 seconds. (time default)
-
- SUBT AA,45 - A job card will be created with your userid plus
- 'AA' and a time value of 45 seconds.
-
- After you have entered the SUBT command, you will either be returned
- to the EDIT panel (where you see the contents of your job stream) or
- back to the member selection list in EDIT. The reason for this is that
- when the SUBT command temporarily inserts a job card on top of your
- JCL run stream, the changed dataset bit is set. If you have not made
- any changes to the member before the SUBT command, then you will be
- brought back to the member selection list. In this way you will not
- be rewriting your member every time you use the SUBT command. If you
- have made changes to the member before using the SUBT command, you will
- be returned to the EDIT panel as normal.
-
- NOTE: The Subt command is only supported for interactive use only.
- This command is not to be used in the batch environment.
-
-