非阻塞点到点通信对局部阻塞点到点通信的模拟  

A Simulation for Locally-Blocking Point-to-Point Communication Using Non-blocking Point-to-Point Communication

作　　者：熊玉庆[1] 

机构地区：[1]上海应用技术学院计算机科学与信息工程系,上海200235

出　　处：《微电子学与计算机》2009年第10期144-146,共3页Microelectronics & Computer

基　　金：上海市教委重点学科建设项目(J51501)

摘　　要：全局阻塞点到点通信易导致死锁,而局部阻塞点到点通信可缓解或避免此问题,但有些消息传递系统不提供局部阻塞点到点通信,需要模拟实现之.文中给出基于MPI的BLACS中用非阻塞点到点通信模拟局部阻塞点到点通信的方法,并作了些改进.Globally-blocking point-to-point communication is prone to cause applications deadlock, but locally-blocking point-to-point communication can relieve or avoid the problem. However, some message passing systems do not support locally-blocking point-to-point communication, and so must simulate the communication. A simulating way and improvement for locally-blocking point-to-point communication using non-blocking point-to-point communication in BLACS based on MPI are presented in this paper.

关 键 词：局部阻塞通信 点到点发送 MPI 并行计算 BLACS 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]