The Concurrency Set dialog box contains widgets for instructing xpbs that
the job being submitted is to be part of a set of concurrently executing jobs.
 
The dialog box is composed of a set of radioboxes that respond to mouse button
clicks for setting the number of additional jobs to be executed concurrently
with the current job (synccount), or for adding the current job to an existing
set of jobs that are dependent on each other for execution (syncwith). 

The "synccount" (first button) is for declaring this job being submitted to be
the leader of the group; "syncwith" (second button) is simply for adding
this job to an existing group with an already designated job leader. To 
specify the job leader in the second button, either select the job from the
listbox, which lists all jobs currently known to xpbs from a recent poll,
or to type the job id directly on the accompanying entrybox.

On the listbox, you can also double click a job id to obtain more information
about the job.

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Command Buttons
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Click on "ok" button after you are satisfied with the concurrency dependency
attribute value of the job.  This is also the default action (as indicated by
the sunken look of the button) when the <Return> key is pressed.

Click on "reset to default" if you want to reset the concurrency dependency
attribute values to the default settings.