A fault-tolerant strategy for real-time task scheduling on multiprocessor system

With more and more multiprocessor computers coming to the market and applications, system reliability is becoming a key issue of the multiprocessor systems. As there is an inherent characteristic of redundancy existing in the multiprocessor systems, the way to raise the reliability of the systems is turned to software strategy rather than m hardware redundancy. Aiming at realizing fault tolerance and making better utilization of system resources, this paper presents a fault tolerant strategy to raise the reliability for the multiprocessor systems, which utilizes a common class of operating system algorithm referred to as Self-Scheduling (SS). Simulation results have been analyzed to show the feasibility of the proposed fault tolerant policy