SST/macro Manual
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Proceedings - IEEE 27th International Parallel and Distributed Processing Symposium Workshops and PhD Forum, IPDPSW 2013
As the tapering off of Moore's Law produces the need for more parallelism in high-performance applications, the parallel programming model becomes central to achieving and maintaining performance per watt on current and future computer architectures. In order for a programmer to exploit parallelism in a power-efficient way, a close interaction with an abstract machine model is necessary to remain cognizant of important power-performance tradeoffs. This work introduces Asynchronous Circuit Programming (ACP), a way of explicitly identifying application communication as circuits to allow the underlying hardware to better execute code, and for a programmer to pipeline the allocation of communication hardware resources with computation. We provide a case study in using a preliminary C++ implementation of ACP with multiple scientific applications that illustrates how hardware can make use of application knowledge, keeping up to 75% of links in a low-power state. © 2013 IEEE.
Proposed for publication in Journal of Parallel and Distributed Computing.
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