Re: [Help-glpk] MPS file format, OBJSENSE

[Andrew Makhorin]

Hi Heinrich,

> the MPS files in http://plato.asu.edu/ftp/lptestset/network/
> contain keyword OBJSENSE, which can take values MIN and MAX.
> 
> Could you, please, consider adding support for this keyword in GLPK.
> 
> See "Objective Sense and Name in MPS Files" in
> http://cgm.cs.mcgill.ca/~avis/courses/567/cplex/reffileformatscplex.pdf
> 

OBJSENSE is a non-standard feature of MPS format. Please see
http://www.cenapad.unicamp.br/parque/manuais/OSL/oslweb/features/featur11.htm
(IBM OSL can be considered as a relevant reference due to its
compatibility with IBM MPS/360 and MPSX/370.)

Please note that it is always possible to change the objective sense
either with the routine glp_set_obj_dir (on api level) or with options
--min/--max (on using glpsol).

Best regards,

Andrew Makhorin