Finding, expressing and managing parallelism in programs executed on clusters of workstations
Computer Communications
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With the move towards parallel processing on Clusters of Workstations (COWs) the ability to fully utilize the computational resources of all workstations through the initial placement and movement of workload is desirable by the user of the system, to improve the overall performance. This is a critical task when many users run their parallel pro grams simultaneously. The ability to have an even spread of load over an entire COW can be achieved through the employment of Global Scheduling. This paper introduces the concept of global scheduling exploiting static allocation and dynamic load balancing along with the implementation of such a facility and support services, remote process creation and process migration, respectively, on the RHODOS distributed operating system. The suitability of the RHO DOS implementation is demonstrated by results obtained from initial test runs of a SPMD parallel application.