[Coin-discuss] Re: initialSolve

[John J Forrest]

Anureet,

LI is now accepted by Coin.  Integer solution of 56155 (minimization)
correct?

John Forrest


                                                                           
             Anureet Saxena                                                
             <anureet at yahoo.co                                             
             m>                                                         To 
             Sent by:                  coin-discuss at list.coin-or.org       
             coin-discuss-boun                                          cc 
             ces at list.coin-or.                                             
             org                                                   Subject 
                                       [Coin-discuss] Re: initialSolve     
                                                                           
             04/19/06 01:42 PM                                             
                                                                           
                                                                           
             Please respond to                                             
             Discussions about                                             
                open source                                                
               software for                                                
                Operations                                                 
                 Research                                                  
             <coin-discuss at lis                                             
              t.coin-or.org>                                               
                                                                           
                                                                           




dear sir,

Thank you very much for your reply. I would have never figured out this
issue myself, so thanks again.

It would be very nice if we can adapt this feature as part of COIN.

regards,
anureet

---------------------
Message: 1
Date: Wed, 19 Apr 2006 07:22:22 -0400
From: John J Forrest <jjforre at us.ibm.com>
Subject: Re: [Coin-discuss] problem with initialsolve
To: Discussions about open source software for Operations Research
<coin-discuss at list.coin-or.org>
Message-ID:
<OF3A583E21.939607D0-ON85257155.003AF954-85257155.003E792E at us.ibm.com>
Content-Type: text/plain; charset=ISO-8859-1

Anureet,

Cplex seems to accept a non standard MPS format bound.  There are LI bounds
which I have never heard of (they obviously allow a lower bound of minus
infinity).  The Mps standard is MI and when I changed them to that then the
problem was feasible.

CoinMpsIo should have given error messages on unrecognized bound types - I
think I have corrected that.

John Forrest


Anureet Saxena
anureet at cmu.edu
anureet at yahoo.com

--This mail was delivered to you on 100% recyclable electrons.


Yahoo! Messenger with Voice. Make PC-to-Phone Calls to the US (and 30+
countries) for 2¢/min or less.
_______________________________________________
Coin-discuss mailing list
Coin-discuss at list.coin-or.org
http://list.coin-or.org/mailman/listinfo/coin-discuss