[Osi-tickets] [COIN-OR Open Solver Interface] #8: More control over solver behavior requested.

[COIN-OR Open Solver Interface]

#8: More control over solver behavior requested.
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 Reporter:  dan.gordon   |       Owner:  mjs
     Type:  enhancement  |      Status:  new
 Priority:  minor        |   Milestone:     
Component:  OsiXpr       |     Version:     
 Keywords:               |  
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 When using OsiXpr, I need to be able to use the Newton barrier solver.
 It's just that much more efficient with my application.

 The present behaviour is to use automatic solver selection for
 {{{initialSolve()}}} and to use dual simplex for {{{resolve()}}}.

 There is no means of changing this behaviour in OsiSolverInterface or
 OsiXprSolverInterface. There is no access to the {{{XPRSprob}}} member
 {{{_prob}}}. Even if there were, this would not help when calling
 {{{resolve()}}}. Likewise, there are no parameter(s) in OsiSolverInterface
 to give this kind of control over the solver behaviour.

 At present, I'm forced to produce my own version of OsiXprSolverInterface.
 It would be neater to avoid this, say, by having a parameter in
 OsiSolverInterface that allows the selection of a preferred method
 whenever there is a choice available (say interior point/primal
 simplex/dual simplex).

 Thanks, Dan

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Ticket URL: <https://projects.coin-or.org/Osi/ticket/8>
COIN-OR Open Solver Interface <https://projects.coin-or.org/Osi/>
The COIN-OR Open Solver Interface