The Alternating Sequential/Parallel (ASP) paradigm of computations is revisited to revive the interest of researchers to this form of distributed data processing.We define the ASP paradigm for a particular but practically interesting case when the transmission media is a shared serially used resource,which is typcial for many LANs.For this case, a performance measure is derived and some aspects of the applicability of the ASP are considered.Using a class of extended Petri nets and a software package based on these nets,a simulation of the ASP system was carried out for an extremum search,which showed a good speedup of the computation.
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