For such applications, the goal is to establish correctness of programs of the form U1 n 1 ∥ . . . ∥Um n m irrespective of {HEAD ~ the program size} as measured by the number ni of threads executing the code for {TAIL ~ driver Ui} 
For such applications , the goal is to establish correctness of programs of the form U1 n 1 ∥ . . . ∥Um n m irrespective of { HEAD ~ the program size } as measured by the number ni of threads executing the code for { TAIL ~ driver Ui }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL