[Coin-symphony] performance

[Martin Mundschenk]

Hi!

I'm testing the performance of a couple of mip-solvers. I use a mps  
file I generated and processed it with cplex, lp_sove, glpsol and  
symphony. I get a 4% solution gap in cplex after about 20 minutes.  
Glpsol achieves a 11% gap after about 1 hour and lp_solve doesn't get  
better than 42%. Symphomy though, doesn't even get an upper bound on  
the same problem, using the same machine, but with *all* four cpus  
(Xeon 3,2 GHz) after eight hours. I can not beleive that symphony  
performs that bad. How can I speed up symphony? I tested all solvers  
with default settings.

Martin
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