COMP 566A   Autumn 2005       Course Announcements

Please check this page once a week.          New items at the top of the page.  

course home page              lecture summaries         project/presentation information

2005.11.9  Assignment 4 posted, due in class Tuesday November 15.

                 Class test Thursday, November 17, in class. No notes or books. See lecture summaries for material covered.

2005.11.2 Assignment 3: Question 1: you can stop after 5 cutting planes
                                       Question 3: x_1 , ... , x_4 >= 0.

Assignment 3 posted. You will need the integer programming handout given in class.


For the class on Oct. 18: Guest lecturer: Antoine Deza. "Combinatorial Optimization:  Problems and Algorithms "

2005.10.3  Assignment 2 posted, due Oct 11.

Teaching Assistant: Conor Meagher
Office: MC232
email: cmeagh1 at
Mon and Wed 10-11 or by appointment

Course software

In the course we make use of the packages maple, lp_solve, cplex and lrs. All are installed on lab
machines in Trottier:,         1<=i<=9 and 1<=j<=30      (Try i=4 or 6 first).

You can connect remotely by ssh:   eg:    ssh
A full list of machine names in labs is here:

If you do not find the software,  try typing: %source /usr/socs/Cshrc
You will need to set the path for some of the software.

cplex     path: /usr/local/bin/cplex 

Instructions for cplex can be found here.

maple        path: /usr/local/bin/maple
A maple session that shows how to solve systems of equations is here.

lp_solve         path: /usr/local/pkgs/lp_solve_4.0/lp_solve
This program can be used to solve linear or integer linear programs.
Usage: lp_solve < input_file
Some examples input and output files are here.
The man page is here.

The full package is available for download from the lp_solve  home page.

A nice help page with DOS executable is available at:

lrs         path: /usr/local/pkgs/lrslib-041/lrs
This program computes all of the extreme points (and extreme rays if any) of the
feasible region of an LP. Home page is:


The SOCS Inside-Out Website is a dynamic student initiative which aims to
reduce frustration and raise the level of computing competency at McGill.
It can be found on the web at

 Some pointers for those looking for projects:

Informs Search of Annual Comprehensive Index Bibliographic Database

ORMS today

Prof. Goffin's home page

Journals to check:
Mathematical Programming, Operations Research, Networks,
INFORS, Interfaces, Management Science