|Subject:||Re: [Help-glpk] Sizing the problem...|
|Date:||Sun, 3 Feb 2013 11:04:27 -0500|
We are using Linux glpk v4.48.
This may be a school boy question, but I’ll ask and beg indulgence from those on the list.
We have a number of LP/MIP problems that range in size. Most are quite manageable in glpk (yeah!!), while a small subset of others test the limits of glpk to either find a solution or run for days without a solution. Indeed, the annoying bit is that some problems just seem to run for days and days, while CPLEX seems to find an answer in minutes.
Is there a way to determine this limit in advance, i.e. can we look at the problem and say that generates X conditions (or something else) and thus is not suited for glpk in its current state?
Is there a way that we could build this into glpk as a pre-processing option?
Looking for any ideas/help, and may even respond to invective. :)
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