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[Help-glpk] Changes in solution file format?

From: Mike Steglich
Subject: [Help-glpk] Changes in solution file format?
Date: Fri, 21 Feb 2014 18:24:10 +0100


I'm wondering whether there is an undocumented change in the solution plain 
text format. 

Solving a problem with glpsol v. 4.52 with 7 constraints and 12 variables the 
first line in the solution file (generated with --write) is "8 12". I 
understand it as 8 lines (objective function + 7 constraints) and 12 variables. 
Doing the same thing with glpsol v. 4.53 a first line "7 12" (7 constraints and 
12 variables) occurs.  

In the manual is the behavior of glpsol v.4.52 described (page 86) :
m n 
m is the number of rows (auxiliary variables);
n is the number of columns (structural variables);

Am I right or wrong?



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