[Coin-discuss] MPS format change

John J Forrest jjforre at us.ibm.com
Sun Jul 11 04:36:38 EDT 2004




If you use clp in the following way it should give names Rnnnnnn etc which
should be easier to use.

clp -keepnam false -import xxxx.mps -presolve off -export yyyy.mps

John Forrest


                                                                           
             Samik                                                         
             Raychaudhuri                                                  
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Hello,
I wanted to change a MPS free format file to MPS fixed format file (by
possibly make the variable names smaller as that is the only concern in
free format) by using CoinMpsIO class routines. I saw the documentation
for readMps and writeMps but didn't see any option to force the writeMps
method to write in fixed format.
Is there any way to do this?
Just to mention, my reason for doing this is to compare performance of
Clp with other solvers like glpk and lp_solve. The other two doesn't
accept MPS free format files.
Thanks and regards,
-Samik
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