中文摘要：

采用数据包级并行分布式仿真工具对典型BitTorrent算法进行大规模仿真,研究大规模P2P下载算法性能,并介绍其建模方法,模拟并行分布式网络仿真器平台下具有可扩展性框架的BitTorrent算法。实验结果表明,该方案能够有效测试多机仿真分层拓扑中典型用户行为的算法性能,且是有效的。

英文摘要：

Large-scale simulation to typical BitTorrent algorithm is conducted by using parallel distributed simulation tool on the packet level, and large-scale P2P downloading algorithm performance is researched, the modeling method of which is introduced. Moreover, BitTorrent algorithm with scalability of the framework on platform of Parallel Distributed Network Simulator（PDNS） is simulated. Experimental results show this scheme can test the algorithm performance with hierarchical topology using multi-computer, and is effective.