Scheduling System Based On The Resources Of The Digital Organisms

Because of fast development of Intemet and computer technologies, distributed system applied widely. When different resources that distributed in different kinds of places constituted a integrate computing platform by distributed system, resource management and load balance tumed into hot spots of research of today and there are some problems that need to be resolved urgently. Some core services, for example discovery, supervise and schedule of resource and select or match between resources and jobs, need to be taken into account. At the same time, reliability, availability and dynamic management of resource need to be paid attention to specially.Resource schedule system that was based on digital organism system (DOS), researched how to schedule efficiently in DOS environment that connected each other in WAN. Firstly, this paper described characters of DOS and brought forward the general design of resource schedule system. Then, the paper described the implement of resource schedule from followed four aspects.1. This paper made a theoretic analysis of resource schedule from point of system view, found an universal model and put forward an universal schedule interface because of extensive schedule requirement and interface manner. The model had abstracted resource schedule and management mechanism. Universal interface provided facility for multi-service on system platform and ensured the transparence to users.2. This paper put forward a method that utilized the service schedule of clients, alleviated the load of server in the system and saved the network bandwidth. Search method combined resource hash with limited flood, brought about rapid route match, reduced response time and promoted high search efficiency. Meanwhile, flood search method brought forward circle destroy algorithm of balance tree which solved circulate search problem and reduced the quantity of messages.3. This paper put forward a local management policy of resource replica which collected access information, stored into the information library and knowledge library as a reference of local management of resource replica when user accessed resource. When system completed replica clone or destroy, the information wound feed back to information library and knowledge library. The policy scheduled replica from distant to local, optimized access speed and improved the efficiency.4. According to market economy principle, this paper put forward an incentive mechanism that promoted resource sharing desire of node. It added up the sharing resource and gained resource, computed the evaluate value which was used to dispatched priority value when several nodes requested the same resource. The mechanism protected the behalf of nodes that had more contribute and encouraged node to share resource.