Initializing help system before first use

problem.addInfnodeCallback

Purpose
Declares a user infeasible node callback function, called after the current node has been found to be infeasible during the Branch and Bound search. The callback is also invoked if the current node gets cut off, i.e., if its objective is proven to exceed the current primal bound. This callback function will be called in addition to any callbacks already added by problem.addInfnodeCallback.
Topic areas
Callback, Branch and Bound Search
Synopsis
problem.addInfnodeCallback(infnode, data=None, priority=0)
infnode(cbprob, cbdata)
Arguments
infnode 
The callback function, which takes arguments cbprob and cbdata, and has no return value. This function is called after the current node has been found to be infeasible.
data 
A user-defined data to be passed to the callback function, infnode.
priority 
An integer that determines the order in which multiple user infeasible node callbacks will be invoked. The callback added with a higher priority will be called before a callback with a lower priority. Set to 0 if not required.
cbprob 
The problem passed to the callback function, infnode.
cbdata 
The user-defined data passed as data when setting up the callback.
Further information
Nodes that are cut off while not being the active node, are reported in the nodecutoff callback.
Related topics
problem.removeInfnodeCallback, problem.addOptnodeCallback, problem.addIntsolCallback, problem.addNodecutoffCallback.

Parent Topic Methods of the class problem

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