20.4. Scheduling Jobs

Try these first

1. 1.

   Define lateness in the context of job scheduling.

   Hint

   Think about the relationship between job completion time and its deadline.

2. 2.

   What is the goal of the greedy algorithm in job scheduling?

   Hint

   Consider what 'greedy' implies about choices made.

3. 3.

   What is the main goal of the 'Minimizing Lateness' problem?

   • Minimize completion time
   • Minimize maximum lateness
   • Schedule maximum jobs

   Hint

   Reflect on what lateness means in this context.

4. 4.

   True or False: The shortest job first strategy always results in the optimal schedule.

   • True
   • False

   Hint

   Consider when shorter jobs have later deadlines.

5. 5.

   Imagine five jobs with the following durations and deadlines: Job A (2 units, deadline 4), Job B (4 units, deadline 10), Job C (1 unit, deadline 3), Job D (2 units, deadline 2), Job E (5 units, deadline 15). Determine the optimal order of execution and calculate the maximum lateness.

   Hint

   Look at the deadlines and durations to form the best order.

6. 6.

   Propose a real-world scenario involving job scheduling. Describe how you would apply the concepts discussed in this section to optimize outcomes in that scenario.

   Hint

   Think about deadlines and how you would prioritize tasks.