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Allow Chalmet to return solutions on error #143

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

Allow Chalmet to return solutions on error #143

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8 changes: 4 additions & 4 deletions src/algorithms/Chalmet.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -57,7 +57,7 @@ function minimize_multiobjective!(algorithm::Chalmet, model::Optimizer)
optimize_inner!(model)
status = MOI.get(model.inner, MOI.TerminationStatus())
if !_is_scalar_status_optimal(status)
return status, nothing
return status, solutions
end
_, y1[2] = _compute_point(model, variables, f2)
MOI.set(model.inner, MOI.ObjectiveFunction{typeof(f1)}(), f1)
Expand All @@ -69,7 +69,7 @@ function minimize_multiobjective!(algorithm::Chalmet, model::Optimizer)
optimize_inner!(model)
status = MOI.get(model.inner, MOI.TerminationStatus())
if !_is_scalar_status_optimal(status)
return status, nothing
return status, solutions
end
x1, y1[1] = _compute_point(model, variables, f1)
MOI.delete(model.inner, y1_constraint)
Expand All @@ -78,7 +78,7 @@ function minimize_multiobjective!(algorithm::Chalmet, model::Optimizer)
optimize_inner!(model)
status = MOI.get(model.inner, MOI.TerminationStatus())
if !_is_scalar_status_optimal(status)
return status, nothing
return status, solutions
end
_, y2[1] = _compute_point(model, variables, f1)
if y2[1] ≈ solutions[1].y[1]
Expand All @@ -93,7 +93,7 @@ function minimize_multiobjective!(algorithm::Chalmet, model::Optimizer)
optimize_inner!(model)
status = MOI.get(model.inner, MOI.TerminationStatus())
if !_is_scalar_status_optimal(status)
return status, nothing
return status, solutions
end
x2, y2[2] = _compute_point(model, variables, f2)
MOI.delete(model.inner, y2_constraint)
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1 change: 1 addition & 0 deletions test/algorithms/Chalmet.jl
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Expand Up @@ -280,6 +280,7 @@ 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 <= 1 ? 0 : 1)
end
return
end
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