Partitioning and Allocation of Scratch-Pad Memory in Priority-Based Multi-Task Systems

• Item type: Trans(1)
• 公開日: 2009-08-14
• タイトル: Partitioning and Allocation of Scratch-Pad Memory in Priority-Based Multi-Task Systems
• タイトル / 言語: en
• タイトル: Partitioning and Allocation of Scratch-Pad Memory in Priority-Based Multi-Task Systems
• 言語: eng
• キーワード / 主題Scheme: Other
• キーワード / 主題: System-Level Low-Power Design
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_6501
• 資源タイプ: journal article
• 著者所属: Graduate School of Information Science, Nagoya University
• 著者所属: Graduate School of Information Science, Nagoya University
• 著者所属: Graduate School of Information Science, Nagoya University
• 著者所属(英): en
• 著者所属(英): Graduate School of Information Science, Nagoya University
• 著者所属(英): en
• 著者所属(英): Graduate School of Information Science, Nagoya University
• 著者所属(英): en
• 著者所属(英): Graduate School of Information Science, Nagoya University
• 著者名: Hideki, Takase; Hiroyuki, Tomiyama; Hiroaki, Takada
• 著者名(英): Hideki, Takase; Hiroyuki, Tomiyama; Hiroaki, Takada
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: Energy consumption has become one of the major concerns in modern embedded systems. Recently memory subsystems have become consumed large amount of total energy in the embedded processors. This paper proposes partitioning and allocation approaches of scratch-pad memory in non-preemptive fixed-priority multi-task systems. We propose three approaches (i.e., spatial, temporal, and hybrid approaches) which enable energy efficient usage of the scratch-pad region. These approaches can reduce energy consumption of instruction memory. Each approach is formulated as an integer programming problem that simultaneously determines (1) partitioning of the scratch-pad memory space for the tasks, and (2) allocation of functions to the scratchpad memory space for each task. Our formulations pay attention to the task periods for the purpose of energy minimization. The experimental results show up to 47% of energy reduction in the instruction memory subsystems can be achieved by the proposed approaches.
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: Energy consumption has become one of the major concerns in modern embedded systems. Recently memory subsystems have become consumed large amount of total energy in the embedded processors. This paper proposes partitioning and allocation approaches of scratch-pad memory in non-preemptive fixed-priority multi-task systems. We propose three approaches (i.e., spatial, temporal, and hybrid approaches) which enable energy efficient usage of the scratch-pad region. These approaches can reduce energy consumption of instruction memory. Each approach is formulated as an integer programming problem that simultaneously determines (1) partitioning of the scratch-pad memory space for the tasks, and (2) allocation of functions to the scratchpad memory space for each task. Our formulations pay attention to the task periods for the purpose of energy minimization. The experimental results show up to 47% of energy reduction in the instruction memory subsystems can be achieved by the proposed approaches.
• 書誌レコードID / 収録物識別子タイプ: NCID
• 書誌レコードID / 収録物識別子: AA12394951
• 書誌情報: IPSJ Transactions on System LSI Design Methodology （TSLDM）; 巻 2, p. 180-188, 発行日 2009-08-14
• ISSN / 収録物識別子タイプ: ISSN
• ISSN / 収録物識別子: 1882-6687
• 出版者 / 言語: ja
• 出版者: 情報処理学会