基于网格的远程数据复制二级缓存机制

Secondary Buffer Memory Mechanism of the Remote Data Duplicate Based on Grid

在网格计算环境中,分布协同工作的邻近主机需要多次拷贝远程文件,存在着重复操作的问题。针对这一问题该文提出了远程数据复制过程中的二级缓存的策略,并对可能出现的读写一致性问题给出了解决的方案。从而减少了分布协同工作时各主机多次拷贝远程文件和并行计算环境中多进程读取输入文件的通信开销,提高了一次通信的有效性。

In grid computing environment ,remote files need to be multi-times duplicated among the adjacent hosts which cooperate distributedly,and that causes the iterant operation problem.Secondary buffer memory mechanism of the remote data duplicate is presented to resolve the problem mentioned above.A solution is given to solve the consistency problem which may encounter in read/write operation.This reduces the communication cost when remote files are duplicated by the hosts in distributed cooperating system and input files is read by multi-process in parallel computing environment ,and it makes the communication more efficient.