[Coin-discuss] CbcModel::initialSolve() loses message handler...

[hpwalton at comcast.net]

I've been trying to carefully control output by introducing my own message handler.  It's been a bit tricky with CBC, but for the most part I could work around it.

I'm using Cbc and Clp together.  In order to capture the Clp output, I have to do something like this:
OsiClpSolverInterface *lpSolver = new OsiClpSolverInterface();
lpSolver->passInMessageHandler(logger); 
OsiCbcSolverInterface *ipSolver = new OsiCbcSolverInterface(lpSolver);
ipSolver->getModelPtr()->passInMessageHandler(logger); 
ipSolver->passInMessageHandler(logger); 
This by itself is a bummer because I suspect that in other OsiSolverInterace conditions I can just hook up to the ipSolver....
Now, I've added some additional processing for "prefer round up".  In the sample code there is a call to initialSolve() amongst other things.
The trouble I'm having is that once I call CbcModel::initialSolve(), all messages disappear.  It appears to me as if something internal gets replaced or reset along the way and suddenly all output stops.
Any suggestions?
Philip
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.coin-or.org/pipermail/coin-discuss/attachments/20060602/34b5bcfe/attachment.html>