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Possibility to run ColumnGeneration as the top algorithm #1132

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Possibility to run ColumnGeneration as the top algorithm #1132

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29 changes: 29 additions & 0 deletions src/Algorithm/colgen.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -255,6 +255,7 @@ function _colgen_optstate_output(result, master)
return optstate
end

# run!() function to be called from the ColGenConquer algorithm
function run!(algo::ColumnGeneration, env::Env, reform::Reformulation, input::AbstractConquerInput)
# We build
C = _colgen_context(algo)
Expand All @@ -264,3 +265,31 @@ function run!(algo::ColumnGeneration, env::Env, reform::Reformulation, input::Ab
master = getmaster(reform)
return _colgen_optstate_output(result, master)
end

# run!() function to be called from optimize!(), i.e. when ColumnGeneration is the top Coluna algorithm
function run!(
algo::ColumnGeneration, env::Env, reform::Reformulation, input_state::OptimizationState
)
C = _colgen_context(algo)
ctx = _new_context(C, reform, algo)
result = ColGen.run!(
ctx, env, GlobalPrimalBoundHandler(
reform;
ip_primal_bound = get_ip_primal_bound(input_state)
)
)

master = getmaster(reform)
output_state = _colgen_optstate_output(result, master)

# if !isnothing(get_global_primal_sol(space.inc_primal_manager))
# add_ip_primal_sol!(space.optstate, get_global_primal_sol(space.inc_primal_manager))
# end

if ip_gap_closed(output_state, rtol = algo.opt_rtol, atol = algo.opt_atol)
setterminationstatus!(output_state, OPTIMAL)
else
setterminationstatus!(output_state, OTHER_LIMIT)
end
return output_state
end