[Coin-symphony] Time limit function not working?

[ZT]

Hello Michael, 

well, i left symphony for about 10 mins, but it didnt
stop solving. the return value of
sym_get_int_param(Problem, "time_limit", &i) is -1,
and of sym_get_dbl_param(Problem, "time_limit", &i)
its 0.

ZT



--- Michael Müller-Bungart
<michael.mueller-bungart at bwl.tu-freiberg.de> wrote:

> ZT wrote:
> > im solving an integer problem and im having
> problems
> > setting the time limit for symphony solver.Im
> using
> > documented function for setting the parameters:
> > sym_set_dbl_param(Problem, "time_limit", 10.0);
> > but solver doesnt stop after the limit is reached.
> According to my experience, SYMPHONY sometimes works
> a little longer 
> than "time_limit". For instance, in some cases I set
> "time_limit" to ten 
> seconds, but SYMPHONY worked as long as 60 seconds
> (then 
> "sym_get_status" indeed returned
> "TM_TIME_LIMIT_EXCEEDED").
> 
> Another hint: I would suggest checking the return
> values of 
> "sym_set_dbl_param", "sym_get_dbl_param",
> "sym_set_int_param", 
> "sym_get_int_param" etc.
> 
> For instance:
>  > sym_get_int_param(Problem, "time_limit", &i)
> should return "FUNCTION_TERMINATED_ABNORMALLY"
> (because there is no 
> *int* param with the name "time_limit").
> 
> Regards,
> Michael
> 
> --
> Dipl.-Wirt.-Inf. Michael Mueller-Bungart
> Lehrstuhl fuer Allgemeine Betriebswirtschaftslehre,
> insbesondere
>     Industriebetriebslehre/Produktionswirtschaft und
> Logistik
> Fakultaet fuer Wirtschaftswissenschaften
> Technical University Bergakademie Freiberg
> Lessingstrasse 45
> 09596 Freiberg
> Germany
> 



	
		
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