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support getting objective bound #59

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chriscoey opened this issue Mar 25, 2019 · 2 comments
Closed

support getting objective bound #59

chriscoey opened this issue Mar 25, 2019 · 2 comments

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@chriscoey
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currently thru MOI and LQOI we can get the primal objective value, but it seems not the dual objective value slash objective bound
@odow
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odow commented May 9, 2020

What should we do here? I don't think the C API has a method for querying the dual objective value, so it seems this should be something we don't support.

@mtanneau
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mtanneau commented May 9, 2020

I see two options:

  • don't support MOI.DualObjectiveValue
  • Compute the dual objective by hand from the dual solution, if it exists.

Personally, I prefer to stick to whatever is/isn't in the C API, so I'm in favor of the first one.

@odow odow closed this as completed May 9, 2020
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@odow @mtanneau @chriscoey