A method for capturing state data on dynamically reconfigurable processors

Vu Manh Tuan, Hideharu Amano

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

In a preemptive multitasking environment, when a task is preempted, necessary state information must be correctly preserved in order for the task to be resumed later. For hardware tasks executing on a coarse-grained dynamically reconfigurable processing array (DRPA), a greate amount of state data are usually distributed on many different storage elements. Besides, DRPAs have different architectures using a variety of development tools. This paper addresses such problems and propose a method for capturing the state data of hardware tasks. Based on resource usage analysis, algorithms for identifying preemption points and inserting preemption states subject to user-specified preemption latency are proposed. Also, the integaration of the proposed steps into the system design flow is discussed. The performance degradation caused by preemption is minimized by allowing preemption only at predefined points where demanded resources are small. The evaluation result using a model based on NEC Electronics DRP-1 shows that the proposed method could allow preemption for a certain task satisfying a given preemption latency with reasonable hardware overhead (from 6% to 15%).

本文言語English
ホスト出版物のタイトルProceedings of the 2008 International Conference on Engineering of Reconfigurable Systems and Algorithms, ERSA 2008
ページ208-214
ページ数7
出版ステータスPublished - 2008
イベント2008 International Conference on Engineering of Reconfigurable Systems and Algorithms, ERSA 2008 - Las Vegas, NV, United States
継続期間: 2008 7月 142008 7月 17

出版物シリーズ

名前Proceedings of the 2008 International Conference on Engineering of Reconfigurable Systems and Algorithms, ERSA 2008

Other

Other2008 International Conference on Engineering of Reconfigurable Systems and Algorithms, ERSA 2008
国/地域United States
CityLas Vegas, NV
Period08/7/1408/7/17

ASJC Scopus subject areas

  • コンピュータ サイエンスの応用
  • ハードウェアとアーキテクチャ
  • ソフトウェア

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