Scaling Soft Processor Systems

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Scaling Soft Processor Systems
As FPGA-based systems including soft-processors become increasingly common we are motivated to better understand the best way to scale the performance of such systems. In this paper we explore the organization of processors and caches connected to a single off-chip memory channel, for workloads composed of many independent threads. In particular we design and evaluate real FPGA-based processor, multithreaded processor, and multiprocessor systems on EEMBC benchmarks—investigating different approaches to scaling caches, processors, and thread contexts to maximize throughput while minimizing area. Our main finding is that while a single multithreaded processor offers improved performance over a single-threaded processor, multiprocessors composed of single-threaded processors scale better than those composed of multithreaded processors.
Martin Labrecque, Peter Yiannacouras, J. Gregory S
Added 29 May 2010
Updated 29 May 2010
Type Conference
Year 2008
Where FCCM
Authors Martin Labrecque, Peter Yiannacouras, J. Gregory Steffan
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