Abstract
This paper considers a static single facility scheduling problem where jobs are divided into several mutually exclusive classes. The jobs in a given class need not be processed together. In addition to a known processing time for each job, there is a switching time involved which depends on the class of the job immediately preceding a job. A heuristic algorithm is proposed to find a minimum mean flow time schedule. The effectiveness of the proposed heuristic algorithm is empirically evaluated and found to indicate that the solutions obtained from this heuristic algorithm are often close to optimal.
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