[Help-glpk] Re: Feasibility Pump

[Louis Wasserman]

Bump bump bump:

Hello,

I #39;m using glpsol to solve sizable MIP problems (~50,000 binary variables 
after presolving), using the command line options "--tmlim 90 --memlim 400 
--fpump --cuts --bestp --mipgap 0.05".  For problems of a certain size, the 
readout indicates that the "feasibility pump" kicks in relatively quickly, 
after which the problem is solved rapidly.  For problems above a certain point, 
however, it does not seem to kick in.  What can I do to improve matters?

Louis Wasserman
address@hidden
http://profiles.google.com/wasserman.louis



Bump bump bump:

Hello,

I'm using glpsol to solve sizable MIP problems (~50,000 binary variables after presolving), using the command line options "--tmlim 90 --memlim 400 --fpump --cuts --bestp --mipgap 0.05".  For problems of a certain size, the readout indicates that the "feasibility pump" kicks in relatively quickly, after which the problem is solved rapidly.  For problems above a certain point, however, it does not seem to kick in.  What can I do to improve matters?

Louis Wasserman
address@hidden
http://profiles.google.com/wasserman.louis