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Fast and scalable lock methods for video coding on many-core architecture

机译:用于多核架构的视频编码的快速,可扩展的锁定方法

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摘要

Many-core processors are good candidates for speeding up video coding because the parallelism of these applications can be exploited more efficiently by the many-core architecture. Lock methods are important for many-core architecture to ensure correct execution of the program and communication between threads on chip. The efficiency of lock method is critical to overall performance of chipped many-core processor. In this paper, we propose two types of hardware locks for on-chip many-core architecture, a centralized lock and a distributed lock. First, we design the architectures of centralized lock and distributed lock to implement the two hardware lock methods. Then, we evaluate the performance of the two hardware locks and a software lock by quantitative evaluation micro-benchmarks on a many-core processor simulator Godson-T. The experimental results show that the locks with dedicated hardware support have higher performance than the software lock, and the distributed hardware lock is more scalable than the centralized hardware lock.
机译:多核处理器是加快视频编码速度的良好候选者,因为多核体系结构可以更有效地利用这些应用程序的并行性。锁定方法对于多核体系结构很重要,以确保程序正确执行以及芯片上线程之间的通信。锁定方法的效率对于芯片多核处理器的整体性能至关重要。在本文中,我们为片上多核体系结构提出了两种类型的硬件锁:集中式锁和分布式锁。首先,我们设计集中式锁和分布式锁的体系结构以实现两种硬件锁方法。然后,我们通过在多核处理器模拟器Godson-T上定量评估微基准来评估两个硬件锁和一个软件锁的性能。实验结果表明,具有专用硬件支持的锁具有比软件锁更高的性能,并且分布式硬件锁比集中式硬件锁具有更高的可伸缩性。

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  • 作者单位

    Institute of Microelectronics, Tsinghua University, Beijing, China,State Key Laboratory of Computer Architecture, Institute of Computing Technology, Chinese Academy of Sciences, Beijing China;

    Key Lab. of Intelligent Information Processing, Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China;

    School of Information Science and Engineering, Shandong Normal University, Jinan, China;

    Institute of Microelectronics, Tsinghua University, Beijing, China;

    Institute of Microelectronics, Tsinghua University, Beijing, China;

    Institute of Microelectronics, Tsinghua University, Beijing, China;

    Department of Computer Science and Technology, Beijing University of Chemical Technology, Beijing, China;

    Institute of Microelectronics, Tsinghua University, Beijing, China;

    Institute of Information Engineering, Chinese Academy of Sciences, National Engineering Laboratory for Information Security Technologies, Beijing, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Many-core; Hardware lock; Centralized lock; Distributed lock; Micro-benchmarks; Godson-T; Software lock; Single-core processor;

    机译:多核;硬件锁;集中锁;分布式锁;微观基准;龙芯T;软件锁;单核处理器;

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