[Clp] Questions about CLP (which I couldn't find in the FAQ, possibly because they're super-outdated)

Andrea Bertoldo andrea.bertoldo at polimi.it
Thu Sep 19 04:20:37 EDT 2013


Hello everyone,

I have been trying out CLP a little bit to see how well it works, and I've got a couple of questions:
- is it possible to work without passing through a MPS file? I'm looking for a library that works with data in memory, and I would like to be able to call it from Fortran, and the documentation for this project is quite vast and if there's a mention about calling CLP by passing matrices instead of reading a MPS, well, I've missed it;
- I've found the notorious afiro problem inside the Data/Samples folder, and I've tried to feed it to the CLP Minimum and CLP TestBarrier projects (inside the Clp solution provided for the users to test), but the results are different from what the real solution should be. Is there a more robust algorithm in your library that is able to solve this problem? CLP Minimum uses a bare ClpSimplex object, whereas CLP TestBarrier switches from an interior to a simplex method.

Thanks in advance for your time and congratulations to all the people involved in COIN-OR for what you have achieved! I was really impressed when I found out how much stuff you have going on :)

Kind regards,

Andrea
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