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Skip modifying constraints that are zero-dimensional #460

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Merged
odow merged 1 commit into from
Jul 8, 2026
+14 −11
Merged

Skip modifying constraints that are zero-dimensional #460

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25 changes: 14 additions & 11 deletions src/models.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -206,21 +206,24 @@ function modify_subproblem(int_sol::Vector{Int}, opt::Optimizer)
# TODO maybe also modify the objective constant using dot(opt.c_int, int_sol), could be nonzero
moi_model = JuMP.backend(opt.subp_model)

new_b = opt.b_cont - opt.A_int * int_sol
MOI.modify(
moi_model,
JuMP.index(opt.subp_eq),
MOI.VectorConstantChange(new_b),
)

new_h = opt.h - opt.G_int * int_sol
for (cr, idxs) in zip(opt.subp_cones, opt.subp_cone_idxs)
if length(opt.b_cont) > 0
new_b = opt.b_cont - opt.A_int * int_sol
MOI.modify(
moi_model,
JuMP.index(cr),
MOI.VectorConstantChange(new_h[idxs]),
JuMP.index(opt.subp_eq),
MOI.VectorConstantChange(new_b),
)
end
new_h = opt.h - opt.G_int * int_sol
for (cr, idxs) in zip(opt.subp_cones, opt.subp_cone_idxs)
if length(idxs) > 0
MOI.modify(
moi_model,
JuMP.index(cr),
MOI.VectorConstantChange(new_h[idxs]),
)
end
end
return
end

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