In order to help manage the complexity, heterogeneity and dynamic inherent in distributed real-time systems, middleware of next generation should deal with changing environments and different client requirements. it i...In order to help manage the complexity, heterogeneity and dynamic inherent in distributed real-time systems, middleware of next generation should deal with changing environments and different client requirements. it is very necessary to resolve interoperability between heterogeneous schedulers. Therefore, this promotes the research of a heterogeneous distributed real-time scheduling system based on reflective middleware. The features of reflection technology and reflective middleware are described in detail first. As a result, proposed reflective middleware is used to resolve interoperability between heterogeneous schedulers in distributed real time system. The high performance,adaptability and feasibility of this middleware platform used to resolve interoperability between heterogeneous schedulers are proved in details by a concrete example. Future trends of research in this field are listed at the end.展开更多
传统的异构分布式实时调度算法基本没有考虑任务的动态特性。提出一种非周期不可抢占式异构分布式的动态容错模型,在该模型上基于不同调度需求给出两种不同容错调度算法:DRFSA(Dynamic and Reliability-driven of hybrid with Fault-tol...传统的异构分布式实时调度算法基本没有考虑任务的动态特性。提出一种非周期不可抢占式异构分布式的动态容错模型,在该模型上基于不同调度需求给出两种不同容错调度算法:DRFSA(Dynamic and Reliability-driven of hybrid with Fault-tolerant Scheduling Algorithm)算法与DSFSA(Dynamic and Schedulability-driven of hybrid with Fault-tolerant Scheduling Algorithm)算法。DRFSA算法以提高可靠性代价为调度目标,通过合理调度提高系统可靠性。DSFSA算法以可调度性为调度目标,通过减少任务执行时间来增加系统可调度性。算法能够在异构系统中调度动态的实时任务,且能够尽可能响应任务需求。展开更多
One way of increasing the computational speed is by using multiple computers operating together on a sin-gle problem. The overall problem is split into parts, each of which is performed by a separate processor in para...One way of increasing the computational speed is by using multiple computers operating together on a sin-gle problem. The overall problem is split into parts, each of which is performed by a separate processor in parallel.Writing programs for this form of computation is known as parallel programming. Equipped by electrical power moni-toring system of Shanghai Hongqiao international airport, this report clarifies the methods of parallel processing.展开更多
文摘In order to help manage the complexity, heterogeneity and dynamic inherent in distributed real-time systems, middleware of next generation should deal with changing environments and different client requirements. it is very necessary to resolve interoperability between heterogeneous schedulers. Therefore, this promotes the research of a heterogeneous distributed real-time scheduling system based on reflective middleware. The features of reflection technology and reflective middleware are described in detail first. As a result, proposed reflective middleware is used to resolve interoperability between heterogeneous schedulers in distributed real time system. The high performance,adaptability and feasibility of this middleware platform used to resolve interoperability between heterogeneous schedulers are proved in details by a concrete example. Future trends of research in this field are listed at the end.
文摘传统的异构分布式实时调度算法基本没有考虑任务的动态特性。提出一种非周期不可抢占式异构分布式的动态容错模型,在该模型上基于不同调度需求给出两种不同容错调度算法:DRFSA(Dynamic and Reliability-driven of hybrid with Fault-tolerant Scheduling Algorithm)算法与DSFSA(Dynamic and Schedulability-driven of hybrid with Fault-tolerant Scheduling Algorithm)算法。DRFSA算法以提高可靠性代价为调度目标,通过合理调度提高系统可靠性。DSFSA算法以可调度性为调度目标,通过减少任务执行时间来增加系统可调度性。算法能够在异构系统中调度动态的实时任务,且能够尽可能响应任务需求。
文摘One way of increasing the computational speed is by using multiple computers operating together on a sin-gle problem. The overall problem is split into parts, each of which is performed by a separate processor in parallel.Writing programs for this form of computation is known as parallel programming. Equipped by electrical power moni-toring system of Shanghai Hongqiao international airport, this report clarifies the methods of parallel processing.
