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Re: [Help-glpk] Multithreading/parallelization

From: Harley Mackenzie
Subject: Re: [Help-glpk] Multithreading/parallelization
Date: Wed, 19 Dec 2012 13:55:30 +1100


I reverted to the 2.7 version of CBC:

  svn co coin-Cbc

This version uses 4.45 GLPK and it all worked without issue. I suspect
that the problem with the stable/2.8 version is that it is out of step
with the ThirdParty/GLPK directory which has been upgraded to the 4.47
and the CBC main code has not been updated to reflect the different GLPK
file structure.

Could you pass on this feedback to the maintainers so that others don't
experience this pain?

Apart from the compilation issue it all ran VERY well.

Onto the big model now and thanks for all your help. Would it be OK to
put the compilation and running information into the GLPK wikibook under
"Other solvers" heading?



On Wed, Dec 19, 2012, at 12:04, Noli Sicad wrote:
> Harley,
> > Same result - I downloaded CBC 2.8 and that the get.glpk script is
> > fetching GLPK 4.47 without me changing anything.
> Quick hack on this,  try replacing glpk-4.47 to glpk-4.45 in the
> get.glpk.
> I doubt that Stefan tested build script for glpk-4.47.
> > What version of CBC have you checked out from SVN as I think there is a
> > problem with the build process for GLPK for 2.8 as the header is
> > definitely not in the expected directory?
> Welcome to the CBC MILP Solver
> Version: Trunk (unstable)
> Build Date: Nov 30 2012
> Revision Number: 1822
> Noli

  Dr. Harley Mackenzie
  HARD software

  + 61 3 5222 3435

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