程序员把问题分解成一个可以相互合作的任务执行序列集，任 务序列被分配到集群计算机上后由系统守护负责创建新的任务以及在各个任务间 进行通信。 -The JPVM library is a software system for explicit message-passing based distributed memory MIMD parallel programming in Java. The library supports an interface similar to