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Re: [Help-glpk] solve mps problem

From: Andrew Makhorin
Subject: Re: [Help-glpk] solve mps problem
Date: Thu, 20 Sep 2007 20:26:21 +0400

>   I'm using java to GLPK4.8 interface and I've created by using
> the function "writeMPS" (i.e. routine lpx_write_mps) an mps
> file that represent the problem I want to solve. I'm able to read
> and solve problem in mps format by using other solver (like COIN_OR
> cbc) but I'm not able to solve the problem in MPS format with GLPK
> because I've the following error:

>   lpx_read_mps: reading problem data from
> `info/optimizationFiles/F2cv_ProblemDescription.mps'...
>   lpx_read_mps: problem name not specified
>   lpx_read_mps: 9132 rows, 3740 columns, 299717 non-zeros
>   lpx_read_mps: 3740 integer columns, all of which are binary
>   lpx_read_mps: 168143 cards were read
>   spx_simplex: problem has no rows/columns
>   lpx_integer: problem is not of MIP class
>   What's the problem?

Looks like the problem object has been damaged somewhere between
a call to lpx_read_mps and a call to the solver routines.

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