Welcome to the COIN-OR Cut Generator Libray, aka "CGL". CGL is distributed under the Common Public License Version 1.0 and is freely redistributable. All source code and documentation is copyright by International Business Machines Corporation and others. This README may be distributed freely.

CGL is a special type of project. Each cut generator has its own "manager", as listed in the AUTHORS file, as well as a project manager for all coordination. 

The description of the project and its intended use is under construction. 

To obtain support (report bugs, etc.), please post your issue on the coin-discuss mailing list by sending an email to coin-discuss@list.coin-or.org, and please cc' the project manager at the email address listed below. 

For detail question on the copyright of a specific cut generator, please email the corresponding project manager at the email address provided below. 

John Forrest, jjforre@us.ibm.com
- CglAllDifferrent
 - CglCutGenerator 
 - CglDuplicateRow
 - CglGomory & GomoryTest
 - CglMessage
- Cgl MixedIntegerRounding2 
- CglPreProcess 
- CglStored  
- CglOddHole  
- CglProbing & Probing Test 

Laszlo Ladanyi, ladanyi@us.ibm.com
 - CglClique & CliqueHelper

Yan Xu, Yan.Xu@sas.com
- CglFlowCover & FlowCoverTest 

Robin Lougee-Heimer, robinlh@us.ibm.com
- CglKnapsackCover
- CglLiftAndProject 
- CglSimpleRounding

Joao Goncalves, jpgoncal@us.ibm.com
- Cgl MixedIntegerRounding 

Francois Margot, fmargot@andrew.cmu.edu
- CglRedSplit 

Oktay Gunluk, gunluk@us.ibm.com
 - CglTwomir  

........................................
Cut: CglRedSplit
Description:
     Reduce-and-Split cuts are variants of Gomory cuts: Starting from
       the current optimal tableau, linear combinations of the rows of
       the current optimal simplex tableau are used for generating Gomory
       cuts. The choice of the linear combinations is driven by the objective
       of reducing the coefficients of the non basic continuous variables
       in the resulting row.
       Note that this generator might not be able to generate cuts for some
       solutions violating integrality constraints.

Implementation based on the paper by K. Anderson, G. Cornuejols, Yanjun Li,
     "Reduce-and-Split Cuts: Improving the Performance of Mixed Integer
     Gomory Cuts", (2005), to appear in Management Science.

Project Manager: Francois Margot, fmargot@andrew.cmu.edu