[Clp] Documentation about how to use CLP through CoinMP

[Paul Smith]

On Sat, May 16, 2009 at 1:59 PM, William H. Patton <pattonwh at comcast.net> wrote:
> Paul,
> The examples show that no one wants to really build the column oriented
> sparse matrix structure used by CoinLoadProblem().
> Otherwise the scaffolding is nice. Ints and SOS can be turned on and off
> after reading the problem or between solves.
> A C user should use the CoinReadFile() to pose the problem via MPS or add
> the "LP" type row oriented reader to the case SOLV_FILE_LP: of CoinMP.cpp.
> Then the rest of the stuff allows access to the options settings, post solve
> solution and sensitivity arrays and progress callbacks.
>
> There are no routines exposed for incrementally perturbing the problem after
> a solve and resolving the new problem. I would say it is a base for you to
> change to suit your C access needs.  It will certainly work fine for
> automating the clp or cbc command line usage of
>  READ model, SET solve options, Solve, Print Solution values and
> sensitivities.  In particular it gets the values back to the calling program
> as full precision arrays.

Thanks, William, for your comments. They are very useful.

Paul