摘要
通过传递消息进行通信的并行程序,由于受进程调度和消息等待时间变化的影响,其执行结果可能是不确定的。这导致调试时相继执行不能再现先前的故障,为此,在并行调试环境中引入了追踪和重演机制。本文详细讨论了一种比较先进的追踪和重演算法及其工程实现。
Executing result of parallel programs which communicate by passing messages,can be nondeterministic due to variations in process scheduling and message latencies.Such nondeterminacy can cause serious problems while debugging:subsequent executions of the program may not reproduce the original bug.Therefore,a tracing and replaying mechanism is introduced into parallel debugging environments.This paper discussed an advanced algorithm for tracing and replaying,and its implementation.
出处
《国防科技大学学报》
EI
CAS
CSCD
1998年第6期33-36,共4页
Journal of National University of Defense Technology