Re: [Help-glpk] Looking for the documentation of GLPKMex

[Nazmul Islam]

Hello Heinrich,

Thanks a lot for your help. That was helpful.

--

Nazmul

On Wed, Jan 15, 2014 at 3:16 PM, Heinrich Schuchardt <address@hidden> wrote:

Hello Nazmul,

please, read the comments on the top of file glpk.m of the glpkmex distribution. Here all parameters available are explained.

http://sourceforge.net/projects/glpkmex/files/glpkmex/2.11/glpkmex-2.11-src.zip/download

Best regards

Heinrich Schuchardt



http://www.xypron.de

Nazmul Islam <address@hidden> schrieb:

Hello,

I am looking for the documentation of GLPKMex. I am using GLPK through Matlab and YALMIP. I am running an MILP program. I want to try different branching options of GLPK (http://en.wikibooks.org/wiki/GLPK/Using_GLPSOL). 

If I were using GNU Math Programming language and running code from cmd, I would have used the following command:

glpsol --first --model example1.mod

But, YALMIP designer, Johan Lofberg, showed me that the YALMIP GLPK option setting looks like the following (one can add more options like --mipgap):

ops = sdpsettings;ops.glpk

    lpsolver: 1

       scale: 1

        dual: 0

       price: 1

       relax: 0.0700

      tolbnd: 1.0000e-07

       toldj: 1.0000e-07

      tolpiv: 1.0000e-09

       round: 0

       objll: -1.0000e+12

       objul: 1.0000e+12

       itlim: 10000

       tmlim: -1

      branch: 2

      btrack: 2

      tolint: 1.0000e-06

      tolobj: 1.0000e-07

      presol: 1

        save: 0

I want to try different values of the branch option but I don't know which particular option (i.e. branching using first/last/most fractional variable) glpk.branch = 2 refers to. It might be related to GLPKMex. Hence, I am looking for the documentation of GLPKMex. Any suggestions?

Thanks,

Nazmul

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