Re: MPS files for maximization lack OBJSENSE

[Domingo Alvarez Duarte]

Hello Julian !

I did a mistake on implementing the OBJSENSE for freemps format and 
fixed it now the binaries are available here 
https://github.com/mingodad/GLPK/actions/runs/2324392030  and here is 
the generated freemps:

====

* Problem:    simple_max
* Class:      LP
* Rows:       3
* Columns:    2
* Non-zeros:  6
* Format:     Free MPS
*
NAME simple_max
OBJSENSE
 MAX
ROWS
 L Constraint1
 L Constraint2
 N Objective
COLUMNS
 x Constraint1 1 Constraint2 3
 x Objective 1
 y Constraint1 2 Constraint2 1
 y Objective 1
RHS
 RHS1 Constraint1 15 Constraint2 20
ENDATA

====

Cheers !

On 14/5/22 16:13, Domingo Alvarez Duarte wrote:
> Hello Julian !
>
> Meanwhile I implemented read/write OBJSENSE for freemps format on my 
> fork of GLPK with several extensions and here 
> https://github.com/mingodad/GLPK/actions/runs/2324178367 you can find 
> the binaries built with github actions to try.
>
> With your proposed example the solution is the same on both, and here 
> is the generated freemps:
>
> ====
>
> * Problem:    simple_max
> * Class:      LP
> * Rows:       3
> * Columns:    2
> * Non-zeros:  6
> * Format:     Free MPS
> *
> NAME simple_max
> OBJSENSE MAX
> ROWS
>  L Constraint1
>  L Constraint2
>  N Objective
> COLUMNS
>  x Constraint1 1 Constraint2 3
>  x Objective 1
>  y Constraint1 2 Constraint2 1
>  y Objective 1
> RHS
>  RHS1 Constraint1 15 Constraint2 20
> ENDATA
>
> ====
>
> Cheers !