BAG Distributed Real-Time Operating System and Task Migration

Authors : Bekir Tevfik AKGÜN

Pages : 123-136

View : 13 | Download : 11

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :BAG is a distributed operating system designed for real-time applications which is run on a distributed real-time system. The heterogeneously distributed BAG system consists of nodes which have VME-bus chassis, different types of processor modules, and an interconnection network. The operating system has three main parts having distributed properties: task migration, load balancing and a distributed file system. Heterogeneous task migration is based on the extended finite state machine insert ignore into journalissuearticles values(EFSM); programming model. The EFMS model has also eased the implementation of the migration mechanism. The load balancing algorithm is centralized in one node. But the overall system will be a multi-centered structure. Another objective of our work is to achieve a fast load balancing mechanism suitable for real-time systems. A file system supporting the task migration mechanism is also designed and developed. Users and processes all have the same view of this file system as a global tree. The file system uses a client/server approach and meets distributed file system requirements with real-time concepts such as priorities and time-out values.
Keywords : Distributed systems, real time systems, operating systems, task migration, load balancing, distributed file system