You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
68 lines
2.4 KiB
68 lines
2.4 KiB
# MIPLearn: Extensible Framework for Learning-Enhanced Mixed-Integer Optimization
|
|
# Copyright (C) 2020-2021, UChicago Argonne, LLC. All rights reserved.
|
|
# Released under the modified BSD license. See COPYING.md for more details.
|
|
|
|
import Base: flush
|
|
|
|
mutable struct FileInstance <: Instance
|
|
py::Union{Nothing,PyCall.PyObject}
|
|
loaded::Union{Nothing, JuMPInstance}
|
|
filename::AbstractString
|
|
|
|
function FileInstance(filename::String)::FileInstance
|
|
instance = new(nothing, nothing, filename)
|
|
instance.py = PyFileInstance(instance)
|
|
return instance
|
|
end
|
|
end
|
|
|
|
to_model(instance::FileInstance) = to_model(instance.loaded)
|
|
get_instance_features(instance::FileInstance) = get_instance_features(instance.loaded)
|
|
get_variable_features(instance::FileInstance) = get_variable_features(instance.loaded)
|
|
get_variable_categories(instance::FileInstance) = get_variable_categories(instance.loaded)
|
|
get_constraint_features(instance::FileInstance) = get_constraint_features(instance.loaded)
|
|
get_samples(instance::FileInstance) = get_samples(instance.loaded)
|
|
push_sample!(instance::FileInstance, sample::PyCall.PyObject) = push_sample!(instance.loaded, sample)
|
|
|
|
function get_constraint_categories(instance::FileInstance)
|
|
return get_constraint_categories(instance.loaded)
|
|
end
|
|
|
|
function load(instance::FileInstance)
|
|
if instance.loaded === nothing
|
|
instance.loaded = load_instance(instance.filename)
|
|
end
|
|
end
|
|
|
|
function free(instance::FileInstance)
|
|
instance.loaded.samples = []
|
|
instance.loaded = nothing
|
|
GC.gc()
|
|
end
|
|
|
|
function flush(instance::FileInstance)
|
|
save(instance.filename, instance.loaded)
|
|
end
|
|
|
|
function __init_PyFileInstance__()
|
|
@pydef mutable struct Class <: miplearn.Instance
|
|
function __init__(self, jl)
|
|
self.jl = jl
|
|
end
|
|
to_model(self) = to_model(self.jl)
|
|
get_instance_features(self) = get_instance_features(self.jl)
|
|
get_variable_features(self) = get_variable_features(self.jl)
|
|
get_variable_categories(self) = get_variable_categories(self.jl)
|
|
get_constraint_features(self) = get_constraint_features(self.jl)
|
|
get_constraint_categories(self) = get_constraint_categories(self.jl)
|
|
get_samples(self) = get_samples(self.jl)
|
|
push_sample(self, sample) = push_sample!(self.jl, sample)
|
|
load(self) = load(self.jl)
|
|
free(self) = free(self.jl)
|
|
flush(self) = flush(self.jl)
|
|
end
|
|
copy!(PyFileInstance, Class)
|
|
end
|
|
|
|
export FileInstance
|