[Cbc] pb with matrix of constraints

Tue Apr 28 10:44:48 EDT 2009

You will be passing a problem to the underlying solver, presumably OsiClp.
How are you doing that - if with loadProblem it seems odd that the first
row of matrix should appear in objective array?

John Forrest

  From:       ycollet at freesurf.fr                                                                                

  To:         cbc at list.coin-or.org                                                                               

  Date:       04/28/2009 10:19 AM                                                                                

  Subject:    [Cbc] pb with matrix of constraints                                                                

Hello,

I am using the CBC library in a C++ program.
I have a problem with a matrix of constraints.
Cbc think the first line corresponds to the objective function. I don't
wan't such a behavior (I ship the vector of objective function coeff and
the matrix of constraints separately). Is there any options which allows
CBC not to consider the first line of the constraints as the objective
function ?

YC

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