%T BSP Modelling of Two Tiered Architectures
%A  Jeremy M. R. Martin,  Alex V. Tiskin
%E  Barry M. Cook
%B Proceedings of WoTUG\-22: Architectures, Languages and Techniques for Concurrent Systems
%X In recent years there has been a trend towards using
   standard workstation components to construct parallel
   computers, due to the enourmous costs involved in designing
   and manufacturing special\-purpose hardware. In particular
   we can expect to see a large population of SMP clusters
   emerging in the next few years. These are local\-area
   networks of workstations, each containing around four
   parallel processors with a single shared memory.

To use
   such machines effectively will be a major headache for
   programmers and compiler\-writers. Here we consider how
   well\-suited the BSP model might be for these two\-tier
   architectures, and whether it would be useful to extend the
   model to allow for non\-uniform communication behaviour.