mercredi 8 avril 2015

Glpk java output


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How can I print all the resolved problem in java-glpk on my console or a file?


Something like this: (this output comes from gusek)



------ ------------ ------------- ------------- -------------
1 x[1] * 1 0 1
2 x[2] * 1 0 1
3 x[3] * 0 0 1
4 x[4] * 1 0 1
5 x[5] * 1 0 1
6 x[6] * 1 0 1


The listeners (GlpkCallback.addListener(this) and GlpkTerminal.addListener(this)) in my java code just return this:



GLPK Integer Optimizer, v4.55
3 rows, 15440 columns, 46320 non-zeros
15440 integer variables, all of which are binary
Preprocessing...
1 row, 15440 columns, 15440 non-zeros
15440 integer variables, all of which are binary
Scaling...
A: min|aij| = 5.718e+001 max|aij| = 2.719e+005 ratio = 4.755e+003
GM: min|aij| = 1.000e+000 max|aij| = 1.000e+000 ratio = 1.000e+000
EQ: min|aij| = 1.000e+000 max|aij| = 1.000e+000 ratio = 1.000e+000
2N: min|aij| = 6.701e-001 max|aij| = 1.330e+000 ratio = 1.985e+000
Constructing initial basis...
Size of triangular part is 1
Solving LP relaxation...
GLPK Simplex Optimizer, v4.55
1 row, 15440 columns, 15440 non-zeros
* 0: obj = 1.584183802e+007 infeas = 0.000e+000 (0)
* 500: obj = 1.190189187e+007 infeas = 0.000e+000 (0)
* 1000: obj = 1.142465659e+007 infeas = 0.000e+000 (0)
* 1500: obj = 1.122247777e+007 infeas = 0.000e+000 (0)
* 1615: obj = 1.121676854e+007 infeas = 0.000e+000 (0)
OPTIMAL LP SOLUTION FOUND
Integer optimization begins...
+ 1615: mip = not found yet >= -inf (1; 0)
+ 1615: >>>>> 1.121676854e+007 >= 1.121676854e+007 0.0% (1; 0)
Better solution found
+ 1615: mip = 1.121676854e+007 >= tree is empty 0.0% (0; 1)
INTEGER OPTIMAL SOLUTION FOUND


Hope someone can help.



asked 1 min ago







Glpk java output

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