Job Flow Time (min) 1 2 3 4 5 6 minutes Makespan: Average flow time: minutes In what order would the jobs be processed using the SPT rule? The SPT sequence is -Select- -Select---Select-- -Select- -Select-- -Select- Compute the average flow time after each job is completed. Round your answer to the nearest whole number.
Job Flow Time (min) 1 2 3 4 5 6 minutes Makespan: Average flow time: minutes In what order would the jobs be processed using the SPT rule? The SPT sequence is -Select- -Select---Select-- -Select- -Select-- -Select- Compute the average flow time after each job is completed. Round your answer to the nearest whole number.
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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Transcribed Image Text:The following six jobs are to be scheduled on a single machine:
| Job | 1 | 2 | 3 | 4 | 5 | 6 |
|-----|-----|-----|-----|-----|-----|-----|
| Processing time (min.) | 70 | 160 | 220 | 90 | 130 | 110 |
### a. Processing Jobs in FCFS Order
Suppose the jobs are processed in First-Come, First-Served (FCFS) numerical order. Compute the makespan, flow time for each job, and overall average flow time. Round your answers to the nearest whole number.
| Job | Flow Time (min) |
|-----|-----------------|
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
- **Makespan:** ________ minutes
- **Average flow time:** ________ minutes
### b. Processing Jobs in SPT Order
In what order would the jobs be processed using the Shortest Processing Time (SPT) rule?
The SPT sequence is:
- _________
- _________
- _________
- _________
- _________
- _________
Compute the average flow time after each job is completed. Round your answer to the nearest whole number.
- **Average flow time:** ________ minutes
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