/** solving process initialization method of primal heuristic (called when branch and bound process is about to begin)
*
* This method is called when the presolving was finished and the branch and bound process is about to begin.
* The primal heuristic may use this call to initialize its branch and bound specific data.
*
*/
SCIP_RETCODE Heur2opt::scip_initsol(
SCIP* scip, /**< SCIP data structure */
SCIP_HEUR* heur /**< the primal heuristic itself */
)
{
ProbDataTSP* probdata = dynamic_cast<ProbDataTSP*>(SCIPgetObjProbData(scip));
graph_ = probdata->getGraph();
capture_graph(graph_);
ncalls_ = 0;
sol_ = NULL;
SCIP_CALL( SCIPallocMemoryArray(scip, &tour_, graph_->nnodes) );
return SCIP_OKAY;
}
/** initialization method of primal heuristic (called after problem was transformed) */
SCIP_RETCODE HeurFrats::scip_init(
SCIP* scip, /**< SCIP data structure */
SCIP_HEUR* heur /**< the primal heuristic itself */
)
{
ProbDataTSP* probdata;
/* create heuristic data */
SCIP_CALL( SCIPcreateSol(scip, &sol, heur) );
/* load the problem specific data */
probdata = dynamic_cast<ProbDataTSP*>(SCIPgetObjProbData(scip));
assert(probdata != NULL);
graph = probdata->getGraph();
assert(graph != NULL);
capture_graph(graph);
return SCIP_OKAY;
}
