VLCC中的DAG并行算法

基于组件的密码学虚拟实验室（VLCC）采用有向无环图（DAG）的拓扑排序机制管理组件。在分析VLCC各组件之间的数据依赖和运行次序关系的基础上，提出一种新的基于Java多线程机制和“唤醒”机制的DAG并行算法。与拓扑排序算法相比，具有低算法时间复杂度的特点。实验结果表明，系统在新算法下较大地缩短了系统运行时间，提高资源使用效率和用户满意度，能更好地完善VLCC。

DAG Parallel Arithmetic in Virtual Laboratory of Cryptology Based on Components

Virtual Laboratory of Cryptology based on Components(VLCC) uses topological sorting in Directed Acyclic Graph(DAG) to manage the data-dependant and execute-order between components. Based on the Java thread and “wake” mechanism, this paper proposes a new DAG parallel arithmetic. Compared with topological sorting, new arithmetic’s time-complexity is highly reduced. Experimental result shows that VLCC works much faster and the usage rate of resource is heightened, and makes user more satisfied. New arithmetic is a better solution for VLCC.