Exam1-last semester.doc - IE580 Exam I –(90min Last Name First Name 1(25 points Build a complete model(with both blocks and elements in either

Exam1-last semester.doc - IE580 Exam I –(90min Last Name...

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IE580 Exam I – 2/22/2017 (90min) Last Name: First Name: 1. (25 points) Build a complete model (with both blocks and elements) in either text-based SIMAN language or graphical Arena format. In either way you have to specify all the parameters needed. Consider a D/M/3/10 with interarrival time = 5min and average service time = 3min. We’d like to measure L, L q , W, W q for 10,000min. 1
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2. (25 points) There are two types of jobs and two queues, and each type of jobs enter a queue designated for that job type. Each of the two queues follows FCFS. A machine serves both types of jobs and it prioritizes jobs in different queues according to a rule below: First Come First Served (FCFS) for first 1,000min and Longer Queue First (LQF) thereafter Job Type Interarrival time Processing time 1 EXPO(1) UNIF(0.5, 2) 2 EXPO(0.5) NORM(0.3, 3) Modify the model provided below according to the priority rule. A(1) = TNOW, A(2) = EXPO(0.5) Assign Queue ID = 1 Queue Server Seize A(2) Delay Server Release 1, TNOW-A(1) Tally Interval = EXPO(1) Create Interval = EXPO(0.5) Create A(1) = TNOW, A(2) = NORM(0.3, 3) Assign Queue ID = 2 Queue Server Seize Dispose 2
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  • Fall '08
  • Bruce,S
  • Das Model, Tally, LQF

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