基于PVM的协调检查点设置关键技术

Key Techniques for PVM-Based Coordinated Checkpointing

本文论述了基于 PVM的并行程序运行回卷恢复系统设计和实现过程中的退出再加入 PVM机制、任务号隐式映射机制、任务结束前同步机制、防止 PVM库重入机制、信号与消息协同触发机制、应用任务初始化机制以及作为前述各机制实现基础的函数包裹与换名机制等关键技术 .这些技术已经成功地应用于我们自主开发的 Cha RM系统中 。

The key techniques for PVM based coordinated checkpointing are proposed in the paper. These techniques include: exiting and rejoining PVM, task id implicit mapping, initiation of application tasks, PVM reentrant prohibiting, signal plus message trigging, functions wrapping and renaming etc. These techniques are correct and effective, for it have been used successfully in our ChaRM System.