【作者】 李利杰； 雷咏梅；

【Author】 LI Li-jie, LIE Yong-mei (School of Computer Engineering and Science, Shang hai University, Shanghai 200072)

【机构】 上海大学计算机工程与科学学院；

【摘要】 网格的异构性、动态性使得传统的计算模型已经不能适应网格计算环境。文章提出一种面向网格的基于消息通信方式的二级计算模型以求解问题。二级计算模型可简述如下:第一步将任务粗粒度分解成若干子任务并映射到节点;第二步各节点进行全局竞争得到全局最优解并以全局最优解为对象进行细粒度方式协同计算。最后在上海高校网格E网格计算应用平台上实例验证。更多还原

【Abstract】 Heterogeneity, dynamics of grid result in incompatibility between traditional computation model and grid environment. The bi-level parallel computation model is proposed in this paper, which is oriental to the grid computation and based on the message passing. Bi-level parallel can be addressed simply as follows: the task is divided into several sub-tasks which are mapped into the single node in first step. And on achieving the solution of global competence, the computation proceeds further in a fined grain way corporately. The experiments are implemented on the ShangHai University E-Institution Grid Computation Platform.更多还原