[Osi] Is there a way to deactivate solver output?

[Ted Ralphs]

Oops, I realized you are probably using OsiCbc. I will look into it
and get back to you.

Cheers,

Ted

On Sat, Apr 24, 2010 at 11:31 AM, Ted Ralphs <ted at lehigh.edu> wrote:
> For Clp (and also for some of the others), I believe that if you do
>
> osi->setHintParam(OsiDoReducePrint);
> osi->messageHandler()->setLogLevel(0);
>
> this will turn off all messages. At least that's what we do in
> SYMPHONY and we aren't getting any additional messages. If this
> doesn't work, post a follow-up and I'll dig deeper to see if there's
> anything else we're doing.
>
> Ted
>
> On Sat, Apr 24, 2010 at 9:44 AM, Christophe-Marie Duquesne
> <chm.duquesne at gmail.com> wrote:
>> On Sat, Apr 24, 2010 at 3:25 PM, Stefan Vigerske
>> <stefan at math.hu-berlin.de> wrote:
>>> Try set the loglevel of the message handler to 0 (or -1):
>>>  osi->messagehandler()->setLogLevel(0);
>>> Depending on which solver you use, this is better or worse implemented
>>> (should work for clp, cplex, xpress, mosek, glpk, gurobi).
>>>
>>> Stefan
>>>
>>
>> Thank you Stefan,
>>
>> This kind of works, but there are still traces I don't want.
>>
>> I had stuff like :
>> Clp0006I 0  Obj 0 Primal inf 43 (38)
>> Clp0006I 83  Obj 439191 Primal inf 101 (52)
>> Clp0006I 166  Obj 956776 Primal inf 7 (7)
>> Clp0006I 177  Obj 957472
>> Clp0000I Optimal - objective value 957472
>> Coin0511I After Postsolve, objective 957472, infeasibilities - dual 0
>> (0), primal 0 (0)
>> Clp0032I Optimal objective 957472.328 - 177 iterations time 0.012, Presolve 0.00
>> Clp0006I 0  Obj 957472
>> Clp0006I 0  Obj 957472
>> Clp0000I Optimal - objective value 957472
>> Integer solution of 957472 found after 0 iterations and 1 nodes
>> Search took 0 iterations and 1 nodes
>>
>> And now I get:
>> Integer solution of 957472 found after 0 iterations and 1 nodes
>> Search took 0 iterations and 1 nodes
>>
>>
>> --
>> Christophe-Marie Duquesne
>> 06 84 14 26 82 - mobile
>> 04 76 57 48 06 - g-scop
>> 04 97 23 27 33 - amadeus
>>
>>
>> _______________________________________________
>> Osi mailing list
>> Osi at list.coin-or.org
>> http://list.coin-or.org/mailman/listinfo/osi
>>
>
>
>
> --
> Dr. Ted Ralphs
> Associate Professor, Lehigh University
> (610) 628-1280
> ted 'at' lehigh 'dot' edu
> coral.ie.lehigh.edu/~ted
>



-- 
Dr. Ted Ralphs
Associate Professor, Lehigh University
(610) 628-1280
ted 'at' lehigh 'dot' edu
coral.ie.lehigh.edu/~ted