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[Help-glpk] Help Please


From: Mapocho
Subject: [Help-glpk] Help Please
Date: Sat, 11 Jul 2009 05:47:59 -0700 (PDT)

Hello, i'm trying to solve a LP problem using GLPK LP/MIP Solver 4.38, but
i'm getting a message " Problem has no feasible solution " i solved my
problem using solver for excel without problems (without message Problem
has...) but with GLPK i don't understand why i'm getting that error. I
really appreciate your help.


C:\Glpsol\glpk\w32>glpsol -m bacheo.mod
GLPSOL: GLPK LP/MIP Solver 4.38
Reading model section from bacheo.mod...
Reading data section from bacheo.mod...
134 lines were read
Generating Superficie...
Generating MatrizUnitaria...
Generating LargoTotal...
Generating DependenciaVArs...
Generating DependenciaVArs1...
Generating DependenciaVArs2...
Generating DependenciaVArs3...
Model has been successfully generated
ipp_basic_tech:  1 row(s) and 0 column(s) removed
ipp_reduce_bnds: 1 pass(es) made, 0 bound(s) reduced
ipp_basic_tech:  0 row(s) and 0 column(s) removed
ipp_reduce_coef: 1 pass(es) made, 0 coefficient(s) reduced
glp_intopt: presolved MIP has 10 rows, 500 columns, 2400 non-zeros
glp_intopt: 500 integer columns, all of which are binary
Scaling...
 A: min|aij| = 1.000e+000  max|aij| = 1.000e+001  ratio = 1.000e+001
Problem data seem to be well scaled
Crashing...
Size of triangular part = 5
Solving LP relaxation...
      0: obj =  7.400000000e+001  infeas = 1.100e+001 (5)
      4: obj =  7.400000000e+001  infeas = 1.000e+000 (2)
PROBLEM HAS NO FEASIBLE SOLUTION
Time used:   0.0 secs
Memory used: 0.8 Mb (876498 bytes)

C:\Glpsol\glpk\w32>

Thanks Again.

Patricio Pastenes A. 
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