5.1.2 Understanding the Dispatcher Process
The dispatcher process polls the job metadata waiting for jobs that
            must be run. To control system load, the dispatcher also
            controls the number of jobs that run in parallel.
               
Generally, the dispatcher process should be running continuously, although it is possible to run jobs without a dispatcher.
For each job in the template group, the dispatcher runs a MANTAS process. The
                
                     
               
               dispatcher tracks jobs for status and completion, and reports any
            failure to the dispatch log.
                  Note:
If you observe job failures when running on the AIX operating system, it may be due to resource constraints of the AIX system. In this case, you must try reducing the number of jobs you are attempting to run in parallel or try running the jobs sequentially.Refer to Starting the Dispatcher and Stopping the Dispatcher for more information.