uw.cs.cs457
  Home FAQ Contact Sign in
uw.cs.cs457 only
 
Advanced search
April 2008
motuwethfrsasuw
 123456 14
78910111213 15
14151617181920 16
21222324252627 17
282930     18
2008
 Jan   Feb   Mar   Apr 
 May   Jun   Jul   Aug 
 Sep   Oct   Nov   Dec 
2008 2007    
total
uw.cs.cs457 Profile…
RELATED GROUPS

POPULAR GROUPS

more...

 Up
  Re: CS 457 broken link         


Author: wmcowan
Date: Apr 9, 2008 14:31

From vwhching@student.cs.uwaterloo.ca Wed Apr 09 20:43:29 2008
|
| Hi Professor Cowan,
|
| In the lecture notes for lecture 17, there's a link to a pdf for an
| example of modelling, and when I click it says forbidden, don't have
| access ...
|
| Thanks,
| Victor
|

There was a permission error so that I could see it and your couldn't. It
should be okay now.

Bill

P.S. Does this mean that nobody else ever looked at it?
no comments
  exam preparation tutorial???         


Author: Dietmar Wasem
Date: Apr 9, 2008 12:06

To whom it may concern,

I'm pretty disappointed to read today on the other course's web page:

***** Tutorial *****

* Tuesday, April 8, 2008, 10:30 am to 12:00 noon, MC 4061

*Why wasn't this announced on the newsgroup and/or in class (Cowan)?*

The whole system with two webpages that don't show the same content is
pretty annoying and now I even missed the tutorial because of it.

Dietmar
4 Comments
  Formula Sheet for Final Exam         


Author: David Lee
Date: Apr 7, 2008 07:41

Hi, I was wondering if any formula sheet (such as the one provided for the
midterm) will be provided for the final exam?

Thanks
no comments
  Assignment 4 Problem 7         


Author: Victor Wai Ho Ching
Date: Apr 3, 2008 11:31

The problem states that it is a 2 stage tandem queue system.

Do I assume that on completion of jobs at server 1, that the job goes to
server 2 queue, or that the job leaves the system?

Also for completion of jobs at server 2, the job leaves the system or goes
to the queue for server 1?

Thanks,
Victor
1 Comment
  A4 Q2         


Author: Alexandru Ovesea
Date: Apr 2, 2008 11:56

When determining E[r], which equation do we use?

a) E[r] = E[n]/(lambda prime) or
b) E[r] = N/X - Z

Thanks,

Alex
no comments
  A4Q4 a         


Author: Jinwoo Choi
Date: Mar 30, 2008 14:43

Hello,

Do we need to assume that the arrival rates and service times are
exponentially distributed and use the Product Form solution on this
question?

Thank you.

--
Jin
1 Comment
  A4Q2 b         


Author: Jinwoo Choi
Date: Mar 29, 2008 19:19

Hello,
Are we expected to plug in the expression for P0 into Pn to simplify?

Thank you

--
Jin
1 Comment
  A4Q1. Lower Bound?         


Author: Jinwoo Choi
Date: Mar 29, 2008 16:36

Hello..
I'm a little confused about how to get the lower bound for this model..
Can you give me some hint?

Thank you...

--
Jin
no comments
  Assignment 4 Office Hours         


Author: Joel Reardon
Date: Mar 25, 2008 10:10

Will be Tuesday (including today) 1430 -> 1530
and Wednesday 1400->1500 (However just for tomarow it will start at 1430).
They will be held in DC 3332.

However, please let me know if this overlaps with the SE timetable.

Joel Reardon
no comments
  Quantum Scheduling         


Author: David Bokan
Date: Mar 19, 2008 13:40

I have a question about how to schedule the start_service event. In the
assignment, it says:

"if x ≤ Q, the job will receive x seconds of service and then depart
from the system; the quantum is terminated after the x seconds of service"

So do we begin processing the next quantum immediately (by scheduling a
new start_service event at the current time)? Or do we schedule the
start_service event using the remainder of time left in the quantum
(Q-x, so that each start_service event is Q seconds apart).

Thanks,
David
1 Comment
1 2 3 4 5