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Re: [Help-glpk] Help with GLPK installation


From: Saint Of Me
Subject: Re: [Help-glpk] Help with GLPK installation
Date: Fri, 15 Jan 2010 18:18:30 +0100


2010/1/15 Noli Sicad <address@hidden>
Have you downloaded and installed Xcode? If not probably you just get
glpk binary from Macports.

Then install Wine and Gusek

http://winebottler.kronenberg.org/

This is the easy way.

Noli
I have Xcode installed but now it seems to run in shell.

Finally I found the way to run glpsol. I try a model in examples dir (queens.mod) can you confirm that you have the same result? So I'm sure that all works good. My result is:

examples guess$ ./glpsol -m queens.mod
GLPSOL: GLPK LP/MIP Solver, v4.42
Parameter(s) specified in the command line:
 -m queens.mod
Reading model section from queens.mod...
41 lines were read
Generating a...
Generating b...
Generating c...
Generating d...
Generating obj...
Model has been successfully generated
GLPK Integer Optimizer, v4.42
43 rows, 64 columns, 316 non-zeros
64 integer variables, all of which are binary
Preprocessing...
42 rows, 64 columns, 252 non-zeros
64 integer variables, all of which are binary
Scaling...
 A: min|aij| =  1.000e+00  max|aij| =  1.000e+00  ratio =  1.000e+00
Problem data seem to be well scaled
Constructing initial basis...
Size of triangular part = 42
Solving LP relaxation...
GLPK Simplex Optimizer, v4.42
42 rows, 64 columns, 252 non-zeros
*     0: obj =   0.000000000e+00  infeas =  0.000e+00 (0)
*    30: obj =   8.000000000e+00  infeas =  0.000e+00 (0)
OPTIMAL SOLUTION FOUND
Integer optimization begins...
+    30: mip =     not found yet <=              +inf        (1; 0)
+    88: >>>>>   7.000000000e+00 <=   8.000000000e+00  14.3% (10; 0)
+   140: >>>>>   8.000000000e+00 <=   8.000000000e+00   0.0% (10; 8)
+   140: mip =   8.000000000e+00 <=     tree is empty   0.0% (0; 29)
INTEGER OPTIMAL SOLUTION FOUND
Time used:   0.0 secs
Memory used: 0.2 Mb (225304 bytes)
 . . Q . . . . .
 Q . . . . . . .
 . . . . . . Q .
 . . . . Q . . .
 . . . . . . . Q
 . Q . . . . . .
 . . . Q . . . .
 . . . . . Q . .
Model has been successfully processed

Thanks

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