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coin-or / SYMPHONY

SYMPHONY is an open-source solver, callable library, and development framework for mixed-integer linear programs (MILPs) written in C with a number of unique features
https://github.com/coin-or/SYMPHONY/wiki
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adding multiple columns #82

Open svigerske opened 5 years ago

svigerske commented 5 years ago

Issue created by migration from Trac.

Original creator: sr

Original creation time: 2008-06-09 15:07:50

Assignee: menal

Version:

I use OsiSymSolverInterface to solve an LP, then I add many additional columns in a reformulation of the problem. This works, but I have noticed that, when adding a large number of additional columns, it is quite slow. (The addCols method seems to call addCol in a loop.)

Is there an alternative method for adding a large number of columns which would run faster?

And, thanks-- symphony is a great product and much appreciated.

Sam

svigerske commented 5 years ago

Comment by sr created at 2010-03-17 16:15:15

forget it