[Osi-tickets] [COIN-OR Open Solver Interface] #114: Can't change Clp algorithm

[COIN-OR Open Solver Interface]

#114: Can't change Clp algorithm
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 Reporter:  Rusker          |      Owner:  mjs
     Type:  defect          |     Status:  new
 Priority:  major           |  Milestone:
Component:  Osi Base Class  |    Version:  0.104
 Keywords:                  |
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 Hi, I hope this is the correct way to present my problem.

 In the past I've been able to change the algorithm used by Clp in
 initialSolve in the following way:


 {{{
 OsiClpSolverInterface *osiSlvr = new OsiClpSolverInterface();

 ClpSolve clpSolve;

 clpSolve.setSolveType(ClpSolve::useBarrier);

 osiSlvr->setSolveOptions(clpSolve);

 osiSlvr->initialSolve();

 }}}

 Now I'm working on a more complicated program that has to solve a problem
 more than one time, so I'm using an initialSolve followed by (a certain
 amount of) resolve(). If I use the same code as above, I don't seem to be
 able to switch between Primal, Dual and Barrier. I can use the hints to
 ask for Primal or Dual in solve/resolve, but I'm not sure it's the same
 thing.

 Is there something wrong in the code above? Or is there something
 different I have to do to change the algorithm used in resolve? Any help
 is appreciated.

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Ticket URL: <https://projects.coin-or.org/Osi/ticket/114>
COIN-OR Open Solver Interface <https://projects.coin-or.org/Osi>
An API for a variety of LP and MIP solvers (and more).