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P-GAS: Parallelizing a Cycle-Accurate Event-Driven Many-Core Processor Simulator Using Parallel Discrete Event Simulation

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6 Author(s)
Huiwei Lv ; Key Lab. of Comput. Syst. & Archit., Chinese Acad. of Sci., Beijing, China ; Yuan Cheng ; Lu Bai ; Mingyu Chen
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Multi-core processors are commonly available now, but most traditional computer architectural simulators still use single-thread execution. In this paper we use parallel discrete event simulation (PDES) to speedup a cycle-accurate event-driven many-core processor simulator. Evaluation against the sequential version shows that the parallelized one achieves an average speedup of 10.9x (up to 13.6x) running SPLASH-2 kernel on a 16-core host machine, with cycle counter differences of less than 0.1%. Moreover, super-linear speedups are achieved between running 1 thread and 8 threads due to reduced overhead of insert-event-to-queue time and increased cache size in parallel processing. We conclude that PDES could be an attractive option for achieving fast cycle-accurate many-core processor simulations.

Published in:

Principles of Advanced and Distributed Simulation (PADS), 2010 IEEE Workshop on

Date of Conference:

17-19 May 2010