[Scip] How to activate/deactivate parallel mode in CPLEX

Ambros Gleixner gleixner at zib.de
Tue Jul 15 17:34:27 CEST 2014


Dear Luciano,

you can use the lp/threads parameter,

    SCIP_CALL( SCIPsetIntParam(scip, "lp/threads", ???) );

Best regards,
Ambros



Am 15.07.2014 17:25, schrieb Luciano Porretta:
> Dear Scip users,
> I have implemented a MIP using cpp wrapper for column generation using
> CPLEX as LP-solver.
> I was wondering if it exists a way to interact with CPLEX options.
> I was looking inside the file: scip-3.1.0/src/lpi/lpi_cpx.c
> and the following functions:
> void* SCIPlpiGetSolverPointer(SCIP_LPI * lpi)
> SCIP_RETCODE SCIPlpiGetIntpar(SCIP_LPI * lpi, SCIP_LPPARAM type,int * ival )
> SCIP_RETCODE SCIPlpiSetIntpar(SCIP_LPI * lpi,SCIP_LPPARAM type, int ival )
> but actually i was wondering if exist a smarter and/or safer way to do it!
> Best regards,
> --
> -------------------------------------------------------------------------------------------------------------
> PORRETTA Luciano, PhD StudentTel : 32-2-650 5027
> Graphes et Optimisation MathématiqueFax : 32-2-650 5970
> Department of Computer Sciencee-mail : luciano.porretta at ulb.ac.be
> Université Libre de Bruxelleshttp://homepages.ulb.ac.be/~lporrett
> Building NO, Campus de la PlaineBoulevard du Triomphe CP 210 / 01
> Office: 2N3 202 B-1050 Brussels, Belgium
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-- 
____________________________________________________________
Ambros M. Gleixner
Zuse Institute Berlin - Matheon - Berlin Mathematical School
http://www.zib.de/gleixner


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