[Bonmin] How to enable variable fixing in BONMIN

[Pierre Bonami]

Hi,

I am sorry but I don't know how to do what you are intending to do and
there in no option to enable or output variable fixing status in Bonmin
itself.

Best,
Pierre
Maybe if you give a precise description of where it

On Thu, Sep 20, 2012 at 1:00 PM, 周恺 <kzhou.zju at gmail.com> wrote:

> Hello,
>     I want to output the variable fixing status while bonmin is runing but
> I can't set bonmin to work properly as I intended.
>     It seems to me that CbcNode::analyze should be called to count the
> number of fixed variables. And in CbcNode::analyze object should be
> downcast into CbcSimpleIntegerDynamicPseudoCost, otherwise analyze will not
> work properly. Then I found in CbcModel::branchandbound function
> convertToDynamic has been called but as I am running my problem in default
> options using B-QG algorithm the convertion did not succeed.
>    So is there some more options I need to change? OR how could I enable
> variable fixing in B-QG?
>    Thx for answering!
>
>                                                      Kai Zhou
>
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