Against the background of Cray X-MP and Conver C Series,we introduce and analyze two parallelizing mechanisms,i. e. ,multitasking and ASAP(Automatic Self Allocate Process)in this paper,and then a brief camparison of the two mechanisms is given.

• 本文以Cray X-MP 和Convex C 系列为背景对二种并行化机制:多任务库和ASAP(Automatic Self Allocate Process)的工作原理、硬软件支持及用户的使用方法作了详细的介绍与分析,并在此基础上对它们作了简要的比较。