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DISTRIBUTED COMPUTING The Parallel Applications for Distributed Systems Introduction Distributed systems and computational Grids (Foster and Kesselman) involve large system dynamics that it is highly desirable to reconfigure executing applications in response to the change in environments. Since parallel applications execute on large number of shared systems, the performance of the applications will be degraded if there is increase in external load on the resources caused by other applications. Also, it is difficult for users of parallel applications to determine the amount of parallelism for their applications and hence may want to determine the amount of parallelism by means of trial-and-error experiments. Due to the large number of machines involved in the distributed computing systems, the mean single processor failure rate and hence the failure rate of the set of machines where parallel applications are executing are fairly high (Beguelin et al.) Hence, for long running applications involving large number of machines, the...

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