SST/macro Manual
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2013 Optical Interconnects Conference, OI 2013
As high-performance scientific computing continues to advance to higher degrees of parallel computing power, the system interconnect becomes a more critical performance-related resource. Optical links have been used strategically to reduce cost per performance in HPC system interconnects for the past decade. In this paper, we explore the performance implications of optical link performance on scientific applications in leading network designs, placing optical signaling technology in the context of its usefulness to HPC system interconnects. © 2013 IEEE.
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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.
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Proposed for publication in Journal of Parallel and Distributed Computing.
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