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Allow Dichotomy to return solutions on error #142

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Merged
odow merged 1 commit into from
Aug 14, 2025
Merged

Allow Dichotomy to return solutions on error #142

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3 changes: 1 addition & 2 deletions src/algorithms/Dichotomy.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -112,8 +112,7 @@ function optimize_multiobjective!(algorithm::Dichotomy, model::Optimizer)
w = y_d[2] / (y_d[2] - y_d[1])
status, solution = _solve_weighted_sum(model, algorithm, [w, 1.0 - w])
if !_is_scalar_status_optimal(status)
# Exit the solve with some error.
return status, nothing
break # Exit the solve with some error.
elseif solution ≈ solutions[a] || solution ≈ solutions[b]
# We have found an existing solution. We're free to prune (a, b)
# from the search space.
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2 changes: 2 additions & 0 deletions test/algorithms/Dichotomy.jl
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Expand Up @@ -434,6 +434,8 @@ function test_solve_failures()
end
MOI.optimize!(model)
@test MOI.get(model, MOI.TerminationStatus()) == MOI.NUMERICAL_ERROR
@test MOI.get(model, MOI.ResultCount()) ==
(fail_after < 2 ? 0 : fail_after)
end
return
end
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