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A NOVEL APPROACH FOR OFF-LINE MULTIPROCESSOR SCHEDULING IN EMBEDDED HARD REAL-TIME SYSTEMS

机译:嵌入式硬实时系统中离线多处理器调度的新方法

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摘要

There are two general approaches for scheduling tasks in real-time systems: runtime and pre-runtime scheduling. However, there are several situations where the runtime approach does not find a feasible schedule even if such a schedule exists. The proposed approach uses state space exploration for finding a pre-runtime scheduling. The main problem with such methods is the space size, which can grow exponentially. This paper shows how to minimize this problem, and presents a depth-first search method on a timed labeled transition system derived from the time Petri net model.
机译:在实时系统中,有两种通用的任务调度方法:运行时调度和运行前调度。但是,在某些情况下,即使存在这样的时间表,运行时方法也找不到可行的时间表。所提出的方法使用状态空间探索来找到运行前调度。这种方法的主要问题是空间大小,它可以成倍增长。本文展示了如何最小化此问题,并提出了一种基于时间Petri网模型的定时标记过渡系统的深度优先搜索方法。

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