[Coin-discuss] Adding constraints to a running problem.

[John J Forrest]

Yossi,

If you are just doing continuous LP then conceptually yes.  Something like:

#include "CoinSignal.hpp"
static OsiSolverInterface * currentModel = NULL;

extern "C" {
   static void signal_handler(int whichSignal)
   {
      if (currentModel!=NULL)
       currentModel->setIntParam(OsiMaxNumIteration,0); // stop at next iteration
      return;
   }
}

Then if you set currentModel to your model before solve then on ctrl-c it would stop on maximum iterations.

Then you can do what you want and restart.

John Forrest


                                                                           
             Yossi Shiloach                                                
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Is it possible to pause a running problem and add new constraints and
bounds from a file (in mps or lp format) and then resume the run from the
paused state?

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