Andrew; Thanks, does this mean that even if multiple I-F's are found prior to the search tree that I will only be able to recover the last heuristic solution?
Jeff -----Original Message----- From: Andrew Makhorin [mailto:[email protected]] Sent: Tuesday, March 29, 2011 11:59 AM To: Kelly, Jeff (ON0F) Cc: [email protected] Subject: Re: [Help-glpk] Retreiving a callback when integer-feasiblesolutions are found in the feasibility-pump heuristic. > Even though I have setup the GLP_IBINGO callback reason code to > interrupt when an integer-feasible solution is found in the search > tree which works well, it doesn’t message when an integer-feasible > solution is found by the feasibility-pump heuristic either at the > start of the search or during. > Is there another reason code I am missing? Currently primal heuristics do not raise events. You can catch GLP_ICUTGEN; if glp_ios_curr_node returns 1, you are at the point when fp heuristic has just finished on the root node, and if glp_mip_status returns GLP_FEAS, some solution has been found by fp and stored into the problem object.
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