[SCIP] "meta heuristic" question

[James Cussens]

Dear SCIPers,

I would like to write a primal heuristic which does the following. If any
other heuristic proposes what turns out to be an infeasible solution, it
takes that infeasible solution as input and generates a different
(hopefully) feasible one. Ideally the same process would be invoked if the
LP relaxation was integer (but infeasible).

The rationale is as follows. I have added "symmetry breaking" constraints
to my problem so that only one distinguished representative of a (possibly
large) class of 'equivalent' solutions remains feasible. If a heuristic
proposes one of these now infeasible equivalent solutions I want my "meta"
heuristic to propose the distinguished representative.

Is there a "nice" way to do this?

James

-- 
James Cussens
Dept of Computer Science &
York Centre for Complex Systems Analysis
Room 326, The Hub, Deramore Lane            Tel    +44 (0)1904 325371
University of York                                        Fax  +44 (0)1904
500159
York YO10 5GE, UK                               http://www.cs.york.ac.uk/~jc
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