面向服务的云工作流模型与调度研究

被引:2
作者
于新征
蒋哲远
机构
[1] 合肥工业大学计算机与信息学院
关键词
面向服务; 云计算; 云工作流; 云工作流调度;
D O I
10.19304/j.cnki.issn1000-7180.2016.07.010
中图分类号
TP393.01 [];
学科分类号
摘要
云工作流环境具有复杂性,针对如何在此背景下有效地响应用户的工作流请求和调度工作流在云中的执行,提出了一种面向服务的云工作流模型,利用云计算环境中的计算、存储等服务完成工作流实例的执行,进而满足用户的请求.基于该模型还设计了一种云工作流调度策略和调度算法,该算法利用DAG(Directed Acyclic Grapg)进行建模,优化资源策略,保证在最晚期限内使整个工作流实例的执行花费尽可能小.实验结果表明该算法能有效提高工作流执行效率,降低成本.
引用
收藏
页码:44 / 48
页数:5
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