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| 并行仿真中全状态保存技术研究 | |
| 引用本文： | 王学慧,曹璐,张磊.并行仿真中全状态保存技术研究[J].计算机工程与科学,2012,34(9):47-50. |
| 作者姓名： | 王学慧 曹璐 张磊 |
| 作者单位： | 1. 国防科学技术大学高性能计算国家重点实验室,湖南长沙,410073 2. 国防科技大学电子科学与工程学院,湖南长沙,410073 3. 国防科技大学计算机学院,湖南长沙,410073 |
| 基金项目： | 国家自然科学基金资助项目 |
| 摘 要： | 乐观时间同步机制能够显著提高并行仿真的性能,但是在乐观时间推进过程中会出现因果错误,需要根据保存的状态对事件进行回退,因此事件状态保存机制是影响乐观时间推进效率的重要因素。本文首先简要介绍了并行仿真中逻辑进程的执行过程,讨论了乐观时间推进的状态保存与回退机制;然后对全状态保存技术进行了建模和理论分析,并通过实验测试了全状态保存算法的性能,测试结果验证了理论分析的正确性。 |
| 关 键 词： | 并行仿真 回退机制 全状态保存 性能分析 |
Research onCopy State Saving Technique in Parallel Simulation |
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| WANG Xue-hui , CAO Lu , ZHANG Lei.Research onCopy State Saving Technique in Parallel Simulation[J].Computer Engineering & Science,2012,34(9):47-50. | |
| Authors: | WANG Xue-hui CAO Lu ZHANG Lei |
| Affiliation: | 1.State Key Laboratory of High Performance Computing , National University of Defense Technology ; 2.School of Electronic Science and Engineering , National University of Defense Technology , Changsha 410073 ; 3.School of Computer Science , National University of Defense Technology , Changsha 410073 , China ) |
| Abstract: | The optimistic time synchronization mechanism can dramatically improve the parallel simulation performance , but the optimistic time advancement will lead to causality error , which needsthe event rollback according to the saved state , therefore the state saving mechanism is an important factor impactingthe optimistic time advancement performance.In this paper , we first introduce the logic process execution procedure of the parallel simulation and discuss the state saving and event rollback mechanism for the optimistic time advancement ; then we model and theoretically analyze the copy state saving technique , and test its performance through experiment tovalidatethe correctness of our theoretical analysis. |
| Keywords: | parallel simulation rollback mechanism copy state saving performance analysis |
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