[Symphony] solution export and var names

Michael Hennebry hennebry at web.cs.ndsu.nodak.edu
Fri Feb 3 12:50:39 EST 2012


On Fri, 3 Feb 2012, Joost wrote:

> In my experience a 'higher' condition number makes a problem (much)
> harder to solve, and is a signal to check problem data and formulation.
>
> I will look into CglGomory.cpp and try to compute the condition number
> first for the root node.

Note that a Gomory fractional cut is pretty much
guaranteed to increase the condition number.
Starting with an all-integer basis,
one gets another all-integer basis with a smaller determinant.

-- 
Michael   hennebry at web.cs.ndsu.NoDak.edu
"On Monday, I'm gonna have to tell my kindergarten class,
whom I teach not to run with scissors,
that my fiance ran me through with a broadsword."  --  Lily


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