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Simplify _cache_primal_status to use XPRS_SOLSTATUS #249

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Mar 21, 2024
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Simplify _cache_primal_status to use XPRS_SOLSTATUS #249

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53 changes: 13 additions & 40 deletions src/MOI/MOI_wrapper.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -3096,48 +3096,21 @@ function _has_primal_ray(model::Optimizer)
return has_Ray[] != 0
end

const _SOLSTATUS_MAP = Dict(
Lib.XPRS_SOLSTATUS_NOTFOUND => MOI.NO_SOLUTION,
Lib.XPRS_SOLSTATUS_OPTIMAL => MOI.FEASIBLE_POINT,
Lib.XPRS_SOLSTATUS_FEASIBLE => MOI.FEASIBLE_POINT,
Lib.XPRS_SOLSTATUS_INFEASIBLE => MOI.NO_SOLUTION,
Lib.XPRS_SOLSTATUS_UNBOUNDED => MOI.NO_SOLUTION,
)

function _cache_primal_status(model)
term_stat = MOI.get(model, MOI.TerminationStatus())
if term_stat == MOI.OPTIMAL || term_stat == MOI.LOCALLY_SOLVED
return MOI.FEASIBLE_POINT
elseif term_stat == MOI.LOCALLY_INFEASIBLE
return MOI.INFEASIBLE_POINT
elseif term_stat == MOI.DUAL_INFEASIBLE
if _has_primal_ray(model)
return MOI.INFEASIBILITY_CERTIFICATE
end
elseif is_mip(model)
stat = @_invoke Lib.XPRSgetintattrib(
model.inner,
Lib.XPRS_MIPSTATUS,
_,
)::Int
if stat == Lib.XPRS_MIP_NOT_LOADED
return MOI.NO_SOLUTION
elseif stat == Lib.XPRS_MIP_LP_NOT_OPTIMAL # - is a STOP
return MOI.NO_SOLUTION
elseif stat == Lib.XPRS_MIP_LP_OPTIMAL # - is a STOP
return MOI.INFEASIBLE_POINT
elseif stat == Lib.XPRS_MIP_NO_SOL_FOUND # - is a STOP
return MOI.NO_SOLUTION
elseif stat == Lib.XPRS_MIP_SOLUTION # - is a STOP
return MOI.FEASIBLE_POINT
elseif stat == Lib.XPRS_MIP_INFEAS
return MOI.INFEASIBLE_POINT
elseif stat == Lib.XPRS_MIP_OPTIMAL
return MOI.FEASIBLE_POINT
elseif stat == Lib.XPRS_MIP_UNBOUNDED
return MOI.NO_SOLUTION #? DUAL_INFEASIBLE?
end
stat =
@_invoke Lib.XPRSgetintattrib(model.inner, Lib.XPRS_SOLSTATUS, _)::Int
if stat == Lib.XPRS_SOLSTATUS_UNBOUNDED && _has_primal_ray(model)
return MOI.INFEASIBILITY_CERTIFICATE
end
if is_mip(model)
mip_sols =
@_invoke Lib.XPRSgetintattrib(model.inner, Lib.XPRS_MIPSOLS, _)::Int
if mip_sols > 0
return MOI.FEASIBLE_POINT
end
end
return MOI.NO_SOLUTION
return _SOLSTATUS_MAP[stat]
end

function MOI.get(model::Optimizer, attr::MOI.PrimalStatus)
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