工作站网络系统进程迁移机制

裴 丹; 汪东升; 沈美明

引用本文:	裴丹,汪东升,沈美明.工作站网络系统进程迁移机制.软件学报,1999,10(10):1032-1037

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工作站网络系统进程迁移机制
裴丹¹, 汪东升¹, 沈美明¹
清华大学计算机科学与技术系,北京,100084

摘要:

进程迁移是工作站网络系统实现负载平衡、提高系统可用性功能的重要手段.该文提出了一种基于接收/发送方消息记录的进程迁移技术.它在消息传递库PVM(parallel virtual machine)之上实现,具有对用户程序透明、可移植性好、开销小和实现简单等特点.此技术已实际应用于作者自行研制的“并行程序运行回卷恢复与进程迁移系统—ChaRM(checkpointing-based rollback recovery and migration system)”中.

关键词: 进程迁移,工作站网络,PVM,进程状态.

DOI：

分类号:

基金项目:本文研究得到国家863高科技项目基金资助。

Process Migration for the Network of Workstations

PEI Dan,WANG Dong-sheng,SHEN Mei-ming

Abstract:

Process migration is an important tool on NOWs (network of workstations) for load-balancing and high availability. In this paper, the authors present a log-based approach to provide process migration for parallel applications. Because this approach is implemented on top of PVM (parallel virtual machine), it is transparent to users and portable. This approach has been used in the ChaRM (checkpointing-based rollback recovery and process migration system) system. The experiments show that the overhead is low.

Key words: Process migration, network of workstations (NOW), PVM (parallel virtual machine), process state.