Paper Details

%T Programming the CELL\-BE using CSP
%A Kenneth Skovhede, Morten N. Larsen, Brian Vinter
%E Peter H. Welch, Adam T. Sampson, Jan Bækgaard Pedersen, Jon Kerridge, Jan F. Broenink, Frederick R. M. Barnes
%B Communicating Process Architectures 2011
%X The current trend in processor design seems to focus on
   using multiple cores, similar to a cluster\-on\-a\-chip
   model. These processors are generally fast and power
   efficient, but due to their highly parallel nature, they are
   notoriously difficult to program for most scientists. One
   such processor is the CELL broadband engine (CELL\-BE) which
   is known for its high performance, but also for a complex
   programming model which makes it difficult to exploit the
   architecture to its full potential. To address this
   difficulty, this paper proposes to change the
   programming model to use the principles of CSP design, thus
   making it simpler to program the CELL\-BE and avoid
   livelocks, deadlocks and race conditions. The CSP model
   described here comprises a thread library for
   the synergistic processing elements (SPEs) and a simple
   channel based communication interface. To examine the
   scalability of the implementation, experiments are performed
   with both scientific computational cores and synthetic
   workloads. The implemented CSP model has a simple API and is
   shown to scale well for problems with significant
   computational requirements.

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