講演名 | 2008-01-17 A Method for Saving and Restoring Context Data of Hardware Tasks on the Dynamically Reconfigurable Processor , |
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抄録(英) | Task preemption is a critical mechanism for building an effective multi-tasking environment on dynamically reconfigurable processors. When being preempted, necessary state information in register files and internal memories must be correctly preserved in order for the task to be resumed later. This paper aims at studying an efficient method for extracting and restoring state data of a hardware task with low latency penalty. Specifically, we develop algorithms to insert and refine preemption states subject to user-specified preemption latency and resource overhead constraints. Modification steps are incorporated into the system design flow. Performance degradation 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 generate a list of appropriate preemption points satisfying a given preemption latency with the reasonable hardware overhead (from 6% to 14%). |
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キーワード(英) | Dynamically Reconfigurable Processor / Preemption Latency / Hardware Overhead |
資料番号 | VLD2007-130,CPSY2007-73,RECONF2007-76 |
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研究会情報 | |
研究会 | RECONF |
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開催期間 | 2008/1/10(から1日開催) |
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講演論文情報詳細 | |
申込み研究会 | Reconfigurable Systems (RECONF) |
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本文の言語 | ENG |
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タイトル(英) | A Method for Saving and Restoring Context Data of Hardware Tasks on the Dynamically Reconfigurable Processor |
サブタイトル(和) | |
キーワード(1)(和/英) | / Dynamically Reconfigurable Processor |
第 1 著者 氏名(和/英) | / TUAN Vu MANH |
第 1 著者 所属(和/英) | Graduate School of Science and Technology, Keio University |
発表年月日 | 2008-01-17 |
資料番号 | VLD2007-130,CPSY2007-73,RECONF2007-76 |
巻番号(vol) | vol.107 |
号番号(no) | 419 |
ページ範囲 | pp.- |
ページ数 | 6 |
発行日 |