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%T Fine\-grained global control constructs for parallel programming environments
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%A  Marek Tudruj
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%E  Andr\[`e] W. P. Bakkers
%B Proceedings of WoTUG\-20: Parallel Programming and Java
%X Problems of evolved control in fine\-grained parallel
   programs in distributed memory systems are discussed in the
   paper. Global control constructs are proposed which
   logically bind program modules, assign them to worker
   processors and define the involved flow of control.
   Implementation methods are discussed which assume control
   flow processing decoupled from data processing inside
   executive modules. The proposed constructs are extensions of
   the OCCAM 2 language. They can be incorporated into an
   intermediate code generated by a parallel language compiler
   or can be used by a programmer to define control flow
   between fine\-grained program modules assigned to different
   processors. Architectural requirements for efficient
   implementation of the proposed control constructs are
   discussed.