Error in setting different LP method

Answered

HengTzu Lee

• May 16, 2022 07:34

Hi

I'm building LP model in the hope to test the speed with different methods.

Therefore, after creating a new model, I set the method attribute using the code below.

GRBnewmodel(LPenv, &LPmodel, "LP", 0, NULL, NULL, NULL, NULL, NULL);
error = GRBsetintattr(LPmodel, "Method", 0);
if (error) printf("Error in setting LP method.\n");

However, it keeps showing the error message.

Can anyone advise me where is the problem?

Thank you!

0

• 

  Jaromił Najman

  Gurobi Staff

  • May 16, 2022 07:56
  • Edited

  Method is a parameter and not an attribute. Thus, you have to use the GRBsetintparam function.

  GRBnewmodel(LPenv, &LPmodel, "LP", 0, NULL, NULL, NULL, NULL, NULL);
  error = GRBsetintparam(GRBgetenv(LPmodel), "Method", 0);
  if (error) printf("Error in setting LP method.\n");

  Best regards, 
  Jaromił

  0

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