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Performance tuning scientific codes for dataflow execution

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3 Author(s)
Shaw, A. ; Lab. for Comput. Sci., MIT, Cambridge, MA, USA ; Arvind ; Johnson, R.P.

Performance tuning programs for dataflow execution involves tradeoffs and optimizations which may be significantly different than for execution on conventional machines. We examine some tuning techniques for scientific programs with regular control but irregular geometry. We use as an example the core of an ocean modeling code developed in the implicitly parallel language Id for the Monsoon dataflow machine. Dataflow implementations of loops, in particular, require careful examination by the compiler or programmer to attain high performance because of overheads due to fine-grained synchronization, control, and operand distribution

Published in:

Parallel Architectures and Compilation Techniques, 1996., Proceedings of the 1996 Conference on

Date of Conference:

Oct 1996