查詢結果分析
相關文獻
頁籤選單縮合
題 名 | A New Relaxed Memory Consistency Model for Shared-Memory Multiprocessors with Parallel-Multithreaded Processing Elements |
---|---|
作 者 | 伍朝欽; 陳正; | 書刊名 | Journal of Information Science and Engineering |
卷 期 | 14:4 1998.12[民87.12] |
頁 次 | 頁785-808 |
專 輯 | Special Section on Parallel Processing |
分類號 | 312.1 |
關鍵詞 | Memory consistency model; Multithread; Multiprocessor; Write cache; Synchronization; PSC model; Barrier; Performance evaluation; |
語 文 | 英文(English) |
英文摘要 | The release consistency model is the generally accepted hardware- centric relaxed memory consistency model because of its performance and implementation complexity. By extending the release consistency model, in this paper, we propose ahardware-centric memory consistency model particularly for shared-memory multiprocessor systems with parallel- multithreaded processing elements. The new modeluses a new categorization for memory references and utilizes the feature of parallelmultithreaded processors (PM Ps). We further partition acquire and release references into three sub-categories: one for lock-unlock pairs, one for barrier synchronization, and the last for others. According to the semantic of each synchronization primitive, each sub-category has its own relaxed restrictions. On the other hand, the feature of a PMP is that it is capable of executing more than one thread at the sametime, where all parallel threads share only one cache hierarchy. Under the new model,we can use dual write-caches to reduce write traffic and synchronization time. We have used five benchmarks in the SPLASH suite to evaluate the performance gain for the new model. According to the simulation results, the new model issuperior to the release consistency model at best by about 11%. |
本系統中英文摘要資訊取自各篇刊載內容。