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Re: [Help-glpk] XML Result Output from glpsol
From: |
Andrew Makhorin |
Subject: |
Re: [Help-glpk] XML Result Output from glpsol |
Date: |
Wed, 2 May 2007 19:20:05 +0400 |
> I tried to do something with Ceron's sample
> http://www-128.ibm.com/developerworks/linux/library/l-glpk2/
> This problem comes from Operations Research: Applications and
> Algorithms, 4th Edition, by Wayne L. Winston (Thomson, 2004).
> try:
> glpsol -m diet_problem_xml.mod -y output.xml
In 4.15 you can redirect the output in the printf statement, e.g.
param file, symbolic, := 'foo.txt';
printf ... > file;
printf ... >> file;
see also the example 'graph.mod'.
>> and I am looking for
>> something to parse the result of optimisation from glpsol.
>> It will be easier if the output will by in XML format. Are there any
>> library to parse it ?
In principle, it is quite easy to provide glpk with an api routine
for writing the solution in xml format.
AFAIK, there were attempts to adapt xml for coding lp/mip data; see
the paper "LPFML: A W3C XML Schema for Linear Programming"
http://www.optimization-online.org/DB_HTML/2004/02/817.html
However, I am not sure if there is a similar format for coding lp/mip
solution.
Andrew Makhorin