Re: [Help-glpk] Objective value issue

2014-07-11 Thread Michael Hennebry
On Fri, 11 Jul 2014, Mattia Buccarella wrote: When I use glpsol to solve my model (written in MathProg, with separate data input file), all the variables are configured properly as I expect (I am referring to a "dummy" input I use to verify the correctness of my model). Nevertheless, the value o

Re: [Help-glpk] Objective value issue

2014-07-11 Thread Mattia Buccarella
I just read again the link you provided before and I noticed there is a posting that suggests a workaround to avoid the problem. I will do more trials to see if it works properly. If it will not work, I will provide an example of my model to investigate further. For the moment, I really thank you f

Re: [Help-glpk] Objective value issue

2014-07-11 Thread Heinrich Schuchardt
Hello Mattia, please, provide an example model. Best regards Heinrich Schuchardt http://www.xypron.de Am 11.07.14 um 17:41 schrieb Mattia Buccarella > Thanks for your answer. > > The link you suggested is the one I already saw and discussed in my first > > email. > > My question is about t

Re: [Help-glpk] Objective value issue

2014-07-11 Thread Mattia Buccarella
Thanks for your answer. The link you suggested is the one I already saw and discussed in my first email. My question is about the meaning of "constant", since all the terms in my objective function are functions of variables (i.e.: none of them is actually constant). Also, I would like to know if t

Re: [Help-glpk] Objective value issue

2014-07-11 Thread Heinrich Schuchardt
Hello Mattia, please, read http://en.wikibooks.org/wiki/GLPK/Troubleshooting#Objective_shift_term_ignored_when_exported Best regards Heinrich Schuchardt http://www.xypron.de Am 11.07.14 um 17:20 schrieb Mattia Buccarella > Hello everyone, > > > > my name is Mattia and I am using glpsol in

[Help-glpk] Objective value issue

2014-07-11 Thread Mattia Buccarella
Hello everyone, my name is Mattia and I am using glpsol in the development of my master thesis in computer science. I am writing to you all for something I could not find anywhere so far. When I use glpsol to solve my model (written in MathProg, with separate data input file), all the variables a