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DHARMA: A Tool for Evaluating Dynamic Scheduling Algorithms for Real-time Multiprocessor Systems

By G. Manimaran, Anand Manikutty and C. Siva Ram Murthy


A majority of today's real-time systems assume a priori knowledge of task characteristics and hence are based on static designs which contribute to their high cost and inflexibility. The next generation hard real-time systems must be designed to be dynamic and flexible. This provides the motivation to study various dynamic scheduling proposals. In this paper, we propose new algorithms for scheduling and resource reclaiming in a dynamic multiprocessor system with fault-tolerant requirements. Resource reclaiming refers to the problem of utilizing resources left unused by a task when its actual computation time is less than its worst case computation time, or when it is deleted in a fault-tolerant schedule. We als

Topics: Tool, Real-time Multiprocessor, Dynamic Scheduling, Fault-tolerance
Year: 1998
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