作　　者： ; ; ; ;

机构地区： 北京科技大学计算机与通信工程学院计算机科学与技术系

出　　处： 《计算机学报》 2006年第11期2027-2036,共10页

摘　　要： 面向任务的无缝主动迁移问题是普适计算研究中一个难以解决的课题,虽然国内外有人研究了NOMAD等支持平台,但由于缺乏对资源的有效调度,因此都很难满足任务迁移时对无缝主动性的要求.鉴于此,文中提出了构件化无缝主动迁移机制中的资源调度策略,它包括资源描述、映射和仲裁等策略.在资源描述策略中,给出了属性、知识和资源请求原语策略;在资源映射与仲裁调度策略中,提出了分布式协商和集中式决策相结合的策略,设计了调度算法,保证了调度的原子性与并发性.资源管理构件中的资源映射引擎为资源请求匹配合适的资源,资源仲裁引擎保证资源能够被合理地使用.测试示例的比较分析表明了上述策略的正确性与有效性. The task oriented seamless proactive migration is one of difficult problems to be solved. Owing to the weak function in resource scheduling, the software platform, such as NOMAD, can＇t meet the requirement of seamlessness and pro activity during task-oriented migration. Based on previous researches, the authors present the resource scheduling strategy for Corn based seamless proactive migration, which includes description strategy of resource, mapping strategy of resource and arbitration strategy of resource. In the description strategy, the description strategies of attribute, knowledge and request primary have been given. In the mapping and arbitration strategy, fusion strategy based on distributed negotiation and centralized decision has been presented, the resource schedule algorithm has been designed, and its atomic feature and parallel feature are kept. The mapping engine in resource management component can match the optimized resource for agent＇s rcquest and arbitration engine can ensure its reasonable use.By application examples and comparison analysis, the correctness and validity of the strategy has been tested successfully.

关 键 词： 普适计算 无缝主动迁移 构件化 资源调度 智能空间

领　　域： [自动化与计算机技术] [自动化与计算机技术]