Multithreaded simulation for synchronous dataflow graphs
Multithreaded simulation for synchronous dataflow graphs
复制标题
同步数据流图的多线程模拟
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
S. Bhattacharyya
中科院分区：
文献类型：
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作者：
Chia;J. Pino;S. Bhattacharyya
同步时钟（SDF）已成功地用于无线通信系统的系统级仿真的设计工具。现代无线通信标准涉及大的复杂度和高多速率行为，并且通常导致长的仿真时间。模拟SDF图的传统方法是计算和执行静态单处理器调度。如今，多核处理器越来越受欢迎，因为它们通过片上线程级并行来提高性能。然而，没有新的调度和模拟技术，明确探索多线程的能力，目前的设计工具只获得最小的性能改进。在本文中，我们提出了一个新的多线程仿真调度，称为MSS，提供仿真运行时的速度为执行SDF图多核处理器。我们已经实现了MSS在先进的设计系统（ADS）从安捷伦科技。在英特尔双核超线程（4个处理单元）处理器上，我们的结果表明，在模拟现代无线通信系统（例如，WCDMA 3G、CDMA 2000、WiMax、EDGE和数字电视）。
Synchronous dataflow (SDF) has been successfully used in design tools for system-level simulation of wireless communication systems. Modern wireless communication standards involve large complexity and highly-multirate behavior, and typically result in long simulation time. The traditional approach for simulating SDF graphs is to compute and execute static single-processor schedules. Nowadays, multi-core processors are increasingly popular for their potential performance improvements through on-chip, thread-level parallelism. However, without novel scheduling and simulation techniques that explicitly explore multithreading capability, current design tools gain only minimal performance improvements. In this paper, we present a new multithreaded simulation scheduler, called MSS, to provide simulation runtime speed-up for executing SDF graphs on multi-core processors. We have implemented MSS in the advanced design system (ADS) from Agilent Technologies. On an Intel dual-core, hyper-threading (4 processing units) processor, our results from this implementation demonstrate up to 3.5 times speed-up in simulating modern wireless communication systems (e.g., WCDMA3G, CDMA 2000, WiMax, EDGE, and Digital TV).