[Coin-discuss] determining problem type in OSI
Lou Hafer
lou at cs.sfu.ca
Thu Jun 29 13:14:53 EDT 2006
Kish,
This could be implemented in OsiSolverInterface. But a safe default
implementation will boil down to the algorithm you suggest: scan columns
looking for integer type. It would fall to individual OSI maintainers to do
something more efficient. A consequence of variable type being left to the
underlying solver (setInteger is a pure virtual method).
I take it using CbcModel::numberIntegers is not good, for some reason?
Still interested? A default could be installed in OsiSolverInterface
without too much trouble. It would likely take a while for individual OSIs to
incorporate something more efficient.
Lou
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