Replace Cbc/Clp by HiGHS

src/model/build.jl

@@ -2,7 +2,7 @@
 # Copyright (C) 2020, UChicago Argonne, LLC. All rights reserved.
 # Released under the modified BSD license. See COPYING.md for more details.
 
-using JuMP, LinearAlgebra, Geodesy, Cbc, Clp, ProgressBars, Printf, DataStructures
+using JuMP, LinearAlgebra, Geodesy, ProgressBars, Printf, DataStructures
 
 function build_model(instance::Instance, graph::Graph, optimizer)::JuMP.Model
     model = Model(optimizer)

src/model/getsol.jl

@@ -2,7 +2,7 @@
 # Copyright (C) 2020, UChicago Argonne, LLC. All rights reserved.
 # Released under the modified BSD license. See COPYING.md for more details.
 
-using JuMP, LinearAlgebra, Geodesy, Cbc, Clp, ProgressBars, Printf, DataStructures
+using JuMP, LinearAlgebra, Geodesy, ProgressBars, Printf, DataStructures
 
 function get_solution(model::JuMP.Model; marginal_costs = true)
     graph, instance = model[:graph], model[:instance]

src/model/solve.jl

@@ -2,14 +2,14 @@
 # Copyright (C) 2020, UChicago Argonne, LLC. All rights reserved.
 # Released under the modified BSD license. See COPYING.md for more details.
 
-using JuMP, LinearAlgebra, Geodesy, Cbc, Clp, ProgressBars, Printf, DataStructures
+using JuMP, LinearAlgebra, Geodesy, ProgressBars, Printf, DataStructures, HiGHS
 
 function _get_default_milp_optimizer()
-    return optimizer_with_attributes(Cbc.Optimizer, "logLevel" => 0)
+    return optimizer_with_attributes(HiGHS.Optimizer)
 end
 
 function _get_default_lp_optimizer()
-    return optimizer_with_attributes(Clp.Optimizer, "LogLevel" => 0)
+    return optimizer_with_attributes(HiGHS.Optimizer)
 end
 
 
@@ -98,7 +98,13 @@ function solve(filename::AbstractString; heuristic = false, kwargs...)
     if heuristic && instance.time > 1
         @info "Solving single-period version..."
         compressed = _compress(instance)
-        csol = solve(compressed; output = nothing, marginal_costs = false, kwargs...)
+        csol, _ = solve(
+            compressed;
+            return_model = true,
+            output = nothing,
+            marginal_costs = false,
+            kwargs...
+        )
         @info "Filtering candidate locations..."
         selected_pairs = []
         for (plant_name, plant_dict) in csol["Plants"]

src/sysimage.jl

@@ -1,15 +0,0 @@
-using PackageCompiler
-
-using Cbc
-using Clp
-using Geodesy
-using JSON
-using JSONSchema
-using JuMP
-using MathOptInterface
-using ProgressBars
-
-pkg = [:Cbc, :Clp, :Geodesy, :JSON, :JSONSchema, :JuMP, :MathOptInterface, :ProgressBars]
-
-@info "Building system image..."
-create_sysimage(pkg, sysimage_path = "build/sysimage.so")

src/web/run.jl

@@ -1,22 +1,22 @@
 println("Initializing...")
 
 using Logging
-using Cbc
-using Clp
 using JSON
 using JuMP
+using HiGHS
 using RELOG
 
 function solve(root, filename)
     ref_file = "$root/$filename"
     optimizer = optimizer_with_attributes(
-        Cbc.Optimizer,
-        "seconds" => parse(Int, ENV["RELOG_TIME_LIMIT_SEC"]),
+        HiGHS.Optimizer,
+        "time_limit" => parse(Float64, ENV["RELOG_TIME_LIMIT_SEC"]),
     )
     ref_solution, ref_model = RELOG.solve(
         ref_file,
+        heuristic=true,
         optimizer=optimizer,
-        lp_optimizer=Clp.Optimizer,
+        lp_optimizer=HiGHS.Optimizer,
         return_model=true,
         marginal_costs=true,
     )
@@ -61,7 +61,7 @@ function solve(root, filename)
             ref_model,
             scenario,
             optimizer=optimizer,
-            lp_optimizer=Clp.Optimizer,
+            lp_optimizer=HiGHS.Optimizer,
         )
         if length(sc_solution) == 0
             return