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題 名 | FDS電腦平行運算效能之探討=Research of Parallel Processing Efficiency in Fire Dynamics Simulator (FDS) |
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作 者 | 郭聰誠; 沈子勝; 黃育祥; | 書刊名 | 中央警察大學災害防救學報 |
卷 期 | 6 民94.12 |
頁 次 | 頁187-203 |
分類號 | 312.13 |
關鍵詞 | 平行運算; 效能; Parallel processing; Efficiency; FDS; |
語 文 | 中文(Chinese) |
中文摘要 | 平行運算在理論上電腦數量愈多,則運算時間愈短,但在運算效率及電腦數量之成本考量上,需取得有效之平衡值,並非一昧增加電腦數就可以有效縮短運算時間,當電腦數超過合理值(如電腦間資料交換量達到網路傳輸量) 或分配給各電腦之資料量與增加之電腦數其運算時間無明顯縮小時,即達到平行運算效率之臨界值,即效率(時間)/成本(電腦數)達成平衡之最佳值。 本研究嘗試以平行運算電腦模擬粗細格點在2、3、4、8臺電腦同時執行單一案例之效能分析,所得之結果可貨後續研究者一項提高運算效能之參考。 |
英文摘要 | In theory as executing Parallel processing, the amount of the computers is great, the time of the computer operation is short. But between operation efficiency and the cost of the quantity of computer need to be considered to make an effective balance value. It can not shorten operation time effectively only by increasing the computer quantity to count, as the computer quantity exceed reasonable value (such as the data quantity exchanged among the computers exceeding the transmitting amount of the network), or the amount of data that distributed into every computer without obviously decreasing the operation time when the computer quantity increasing, namely reach the critical value of parallel processing efficiency, the efficiency (time) /the cost (computer counts) reaching the balance of optimum value. The research try to carry out the efficiency analysis of the single case with the parallel processing under the different situation (2, 3, 4, 8 computers) of large, medium, small sizes of grid, and the simulation result is suitable as a reference of improving operation efficiency for the follow-up researcher. |
本系統中英文摘要資訊取自各篇刊載內容。