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Re: [Help-glpk] Solution Ranking

From: maillst
Subject: Re: [Help-glpk] Solution Ranking
Date: Thu, 26 May 2011 11:10:30 -0400 (EDT)

I would be using the APIs in a C program.

Sorry if I was lacking tact.


-----Original Message-----
From: Robbie Morrison <address@hidden>
To: Terry <address@hidden>
Cc: GLPK help <address@hidden>
Sent: Thu, May 26, 2011 10:02 am
Subject: Re: [Help-glpk] Solution Ranking

Hi Terry

To: address@hidden
Subject: Re: [Help-glpk] Solution Ranking
Message-ID: <address@hidden>
From: Terry <address@hidden>
Date: Wed, 25 May 2011 20:39:00 -0500

> I guess the answer is no:
> That's disappointing. The suggestion is to add a
> constraint to make the optimal solution infeasible
> and run it again. I'm afraid that is too inefficient
> for my application. Imagine it had generated half the
> search tree and then you have to throw that away and
> start over. Bummer.

Point taken.

Are you using MathProg, some generated low level
problem format, or the GLPK APIs? The options change
markedly depending on your relationship to the solver.

> The main GLPK page says I should use this list to
> request an enhancement. Please consider this a
> request.

> I will look into using Symphony:

Some more information about your problem might
also help.

> Any other suggestions?

A little more tact perhaps .. this is an entirely
volunteer project. :)

> Thanks.
> Terry

If you do find anything useful, can you post it back
here for possible inclusion in the wikibook. TIA.

cheers Robbie
Robbie Morrison
PhD student -- policy-oriented energy system simulation
Institute for Energy Engineering (IET)
Technical University of Berlin (TU-Berlin), Germany
University email (redirected) : address@hidden
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