We study the classical batch scheduling problem with identical job processing times and identical setups on parallel identical machines. We show that, similar to the single machine case, the solution is given by a closed form, consisting of identical decreasing arithmetic sequences of batch sizes on the different machines. A very close-to-optimal integer solution is obtained in O(m+n) time, where m is the number of machines, and n is the number of jobs.
Bibliographical noteFunding Information:
The second author is the Charles Rosen Professor of Management, The School of Business Administration, The Hebrew University. This paper was supported in part by the Recanati Fund of the School of Business Administration, The Hebrew University, Jerusalem, Israel.
- Batch scheduling
- Parallel identical machines
- Setup times