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javalinear-programmingglpk
Georgios
Georgios

Reputation: 1037

Get LP from a .mod file, solve it with GLPK and get the output in a usable form

I have a .mod file and want to solve the LP within it with GLPK.

I know there is a method by using the cmd (Windows) with glpsol -m name.mod but then I will have to parse the output result which I want to avoid.

Is there a method by using the glpk libraries for Java to get the .mod file solve it and then get the output without the parsing and cmd part?

Upvotes: 0

Views: 405

Answers (1)

Georgios
Georgios

Reputation: 1037

So there is possible way to get the output of glpk without parsing it manually. The following code is from an answer seen from this link: Input/output in GLPK for Java 

static void writeMipSolution(glp_prob lp) {

 String name = GLPK.glp_get_obj_name(lp);
 double val = GLPK.glp_mip_obj_val(lp);

 System.out.println(name + " = " + val);

 int n = GLPK.glp_get_num_cols(lp);

 for (int i = 1; i <= n; i++) {
     name = GLPK.glp_get_col_name(lp, i);
     val = GLPK.glp_mip_col_val(lp, i);
     System.out.println(name + " = " + val);
 }
}

Upvotes: 0

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