Hello,
I am trying to use SCIP.jl with a custom branch of SCIP (exact-rational branch). I managed to compile this branch and to pass the install dir to SCIP.jl in my ENV[“SCIPOPTDIR”]. As indicated on the Readme of the branch (see GitHub - scipopt/scip at exact-rational), it is required to set the parameter exact/exact_enabled
.
However, when I try to set the parameter with set_attribute(model, "exact/exact_enabled", "TRUE")
I obtain:
ERROR: LoadError: Unrecognized parameter: exact/exact_enabled
Stacktrace:
[1] error(s::String)
@ Base ./error.jl:35
[2] set_parameter(scipd::SCIP.SCIPData, name::String, value::String)
@ SCIP ~/.julia/packages/SCIP/S9mBb/src/scip_data.jl:123
[3] set
@ ~/.julia/packages/SCIP/S9mBb/src/MOI_wrapper.jl:179 [inlined]
[4] set
@ ~/.julia/packages/MathOptInterface/gBojA/src/Bridges/bridge_optimizer.jl:955 [inlined]
[5] set(model::MathOptInterface.Utilities.CachingOptimizer{MathOptInterface.Bridges.LazyBridgeOptimizer{SCIP.Optimizer}, MathOptInterface.Utilities.UniversalFallback{MathOptInterface.Utilities.Model{Float64}}}, attr::MathOptInterface.RawOptimizerAttribute, value::String)
@ MathOptInterface.Utilities ~/.julia/packages/MathOptInterface/gBojA/src/Utilities/cachingoptimizer.jl:1059
[6] set(m::Model, attr::MathOptInterface.RawOptimizerAttribute, value::String)
@ JuMP ~/.julia/packages/JuMP/as6Ji/src/optimizer_interface.jl:794
[7] set_attribute
@ ~/.julia/packages/JuMP/as6Ji/src/optimizer_interface.jl:1023 [inlined]
[8] set_attribute
@ ~/.julia/packages/JuMP/as6Ji/src/optimizer_interface.jl:1032 [inlined]
[9] iabtree_throughput(G::MetaDiGraph{Int64, Float64}, json_comm::Vector{Any}, gap::Float64, continuous_ue_links::Bool, maxtime::Float64, scaling_caps::Int64)
@ Main /home/IABEnergySavingJournal/solver/model.jl:70
[10] macro expansion
@ ./timing.jl:279 [inlined]
[11] main(method::String, data::Dict{String, Any}, result_name::String)
@ Main /home/IABEnergySavingJournal/solver/test_json.jl:75
[12] top-level scope
@ /home/IABEnergySavingJournal/solver/test_json.jl:107
in expression starting at /home/IABEnergySavingJournal/solver/test_json.jl:107
I also tried set_attribute(model, "exact/exact_enabled", true)
and set_attribute(model, "exact/exact_enabled", 1)
with the same outcome. I suspect I need to implement something regarding this parameter within SCIP.jl but am unsure what to change.