Solutions to HW 1 IEOR 130 Prof. Leachman 1. Line yield (LY) is the fraction of wafers started that become wafer outs from the wafer fabrication (wafer fab) factory. Die yield (DY) is the fraction of chips (dice) printed on wafers coming out of wafer
Experimenting with Simulation (Due before noon March 15th)
Please work in teams of 2 on this assignment. Submit your answers in power point to bCourses by
12:00pm on the due date give the IDs of both team members.
Scenario: The fin
Demo Phantom Servers and
Maybe Advanced Placement Quiz?
Course ID_
REWORK
~
(S>0)
ENTER
cfw_S=1
cfw_Q=Q+1
~
~
(S>0)
(Q)
(RND<=.7)
~
(Q>0)
ta
RUN
cfw_Q=Q+1
START
ts
cfw_S=0,Q=Q-1
LEAVE
cfw_S=1
1. In the above model, what is the probability that a job will
INTRODUCTION TO
EVENT GRAPH MODELS
Definition - The basic building block.
Model Dynamics
Reading an Event Graph
Event Graph Enrichments
Event Canceling
(i)
A
B
Whenever event A occurs, if condition (i) is true, then
cancel the next scheduled event B, if a
Lecture 7 Start here
Review ERG defn
and continue with parameters
Event Relationship Graph
A
t
(i)
B
Whenever event A occurs, if condition (i) is true, then
event B will be scheduled to occur after a delay of t.
Complete Edge Definition
(i)
~
A
t
k
B
(j)
ERGs are Minimalist
and Turing Complete
Discrete Event Simulations model both
the passage of Time and Uncertainty.
.SIGMA has two basic variables.
CLK Current simulated clock time.
For modeling dynamics.
RND Randomly chosen number,
greater than 0 and le
Event Vertex Parameters
(and Edge Attribute expressions)
REVIEW EVENT
PARAMETERS
Read Chapter 5
Choi and Kang
Should have read Chpt 1-5 in
Sigma reader at least once by now.
Event Parameters
A
k
B
(j)
After executing Event A, the expressions, k, are
evalu
INTRODUCTION TO
EVENT GRAPH MODELS
Definitions - The basic building block.
Model Dynamics
Reading an Event Graph
Event Graph Enrichments
Distinguishing Features of
Simulation Programs
Models Time DYNAMIC
will focus on this aspect during the
modeling sect
Homework Set 2
Post on bSpace website by Friday, Sep 9 before 11:00am
Objecti ve : Understand the event-scheduling modeling paradig m by building event graph models for
simp le queues.
Reading:
Read chapter 2 in the SIGMA reader mo re carefu lly. Take the
Homework Set 3
Post on bSpace website by Friday, Sep 16 before 11:00am
Again, Read chapter 2 in the SIGMA reader more carefully. Take the quick tour of Sigma on the
web site and the sigma tutorials in Chpt 3 and 4. Finally, Read 5.1-5.2 in the SIGMA reade
IEOR 131 Simulation Product Descriptions
Hospital Emergency Rooms
Product Manager: Shunpo
Teams: 2,8,9,11
Emergency rooms are medical treatment facilities, specialising in acute care of patients who arrive without
prior appointment, wherein room allocatio
IEOR 131
HW #4
For ERG questions, submit ONLY .mod file on bspace. Do not submit graphs & tables unless otherwise
specified.
1. In a Call Center, there are different skill levels for the agents (called agent levels or grades). There are
also different cla
Tool Development
Turing Machine
Event Graphs(Sigma)
Power
.
.
Language
Petri Nets
s
.
Queueing
Usability
.
Simulators
Complete Edge Definition
(i)
~
A
t
k
B
(j)
After executing event A, a vector of expressions, k, is
evaluated. If condition (i) is then tr
Homework Set 3 Fall 2012
Due on Monday, September 17 before 11:55PM
Work in your groups for this homework - Be prepared to present your work.
Objective: Understanding Sigma by building event graph models for simple queues.
Exercises: Implement each of the
Solutions to HW 2 IEOR 130 Prof. Leachman 1. First, consider the case of on-time delivery in a single time period. Let D(i) denote the scheduled output quantity of product i. Let P(i) denote the actual output quantity of product i. The fraction of pr
Solutions to HW 4 IEOR 130 Prof. Leachman
1. Computing die yield DY according to Poisson, Murphy and Seeds yield models. Given a die area A and a defect density D per unit area, the models are as follows: Poisson Model: DY = exp { -AD } Murphy Model:
Changing questions to answersone problem at a time.TM
HW 4 Solutions Spring 2009
Does that work? CLICK IT UP!
< <
ta RUN ENTER
CAR = CAR +1
CAR>0
S>0
SERVE GREASE
td
FIN
S= R=RND, S+1 INCAR= 1+4*RND, STIME=(INCAR=1)(25+10*RND)+ ta= 1+2*RND
Homework #2 Solutions
Verbal Event Graphs 131 - Spring08
Problem 1
Ta Initialize Run Customer enters Any server idle? Start Service
Customers Waiting?
Ts
Customer Leaves
1. Three identical servers working on the same queue.
2. Two different kin
IEOR 131: Discrete Event Simulation
Fall 2012
Description: The primary objective is to introduce students to modern techniques for developing computer
simulations of stochastic discrete-event models and experimenting with such models to better design and
IEOR131 Homework 4
Student Code: ITAJ
Partner: CLPL
PART A)
The errors in the event graph are:
1. Tr should be tr=0. If this is not the case then when multiple jobs require
rework at the same time, the value of RW will be update incorrectly.
2. No edge pr
1. Three identical servers working on the same queue of identical jobs.
ta
Initialize
The RUN
(Are customers waiting in queue?)
Q>0
S>0
(Is server idle?)
Customer
Customer ts
ENTERs
STARTs
System
Service
Q=Q+1
ta = time between customer arrivals
ts = time
IEOR 131/231
Spring 2017
Homework 1 Solutions
2.7.5
In the event graph of Figure 2.6, what is the maximum number of events that
might be scheduled on the events list at one time?
The maximum number of events that can be on the events list at one time is 2
IEOR 151 HW 5
Code: ITAJ
Partner: CLPL
Part A)
Model
Verbal Event Graph
Server vs Time Graph
Queue vs Time Graph
Part B)
Model
Verbal Event Graph
LQ vs Time Graph (Low Priority Jobs vs Time)
HQ vs Time Graph (High Priority Jobs vs Time)
Server vs Time Gra
IEOR 131
Spring 2017
Homework Set 3 Spring 2017
Post pdf of ppt graphs on bCourses website by Friday, Feb 10 before noon.
You may work in pairs on this homework - Be prepared to present your work in recitation.
Start Early!
Objective: Understand the time/
Homework Set 2 Spring 2017
Post pdf of ppt event graphs and *.mod files on bCourses website by Friday, Feb 3 before noon.
Give a one-sentence-per-edge verbal descriptions of your event graphs
You are encouraged to work in pairs on this homework - Be prepa
INTRODUCTION TO
EVENT GRAPH MODELS
Definition - The basic building block.
Model Dynamics
Reading an Event Graph
Event Graph Enrichments
If want to Close Doors at tc
Quiz: Why wont this work?
(CLK<tc)
~
~
(Q>0)
ta
RUN
(S)
ENTER
cfw_Q=Q+1
~
(S>0)
START
ts
c