Implement randomization method from XavQiuAhm2021

2025-12-06 00:08:52 -06:00 · 2021-07-29 11:14:12 -05:00
20 changed files with 233 additions and 488 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -18,4 +18,3 @@ TODO.md
 docs/_build
 .vscode
 Manifest.toml
-*/Manifest.toml
--- a/23
+++ b/23
@@ -2,22 +2,31 @@
 # Copyright (C) 2020, UChicago Argonne, LLC. All rights reserved.
 # Released under the modified BSD license. See COPYING.md for more details.

+JULIA := julia --color=yes --project=@.
 VERSION := 0.2

+build/sysimage.so: src/utils/sysimage.jl Project.toml Manifest.toml
+	mkdir -p build
+	mkdir -p benchmark/results/test
+	cd benchmark; $(JULIA) --trace-compile=../build/precompile.jl benchmark.jl test/case14
+	$(JULIA) src/utils/sysimage.jl
+
 clean:
-	rm -rfv build
+	rm -rf build/*

 docs:
 	cd docs; make clean; make dirhtml
 	rsync -avP --delete-after docs/_build/dirhtml/ ../docs/$(VERSION)/
 	
+test: build/sysimage.so
+	@echo Running tests...
+	$(JULIA) --sysimage build/sysimage.so -e 'using Pkg; Pkg.test("UnitCommitment")' | tee build/test.log
+
+
 format:
-	cd deps/formatter; ../../juliaw format.jl
+	julia -e 'using JuliaFormatter; format(["src", "test", "benchmark"], verbose=true);'

-test: test/Manifest.toml
-	./juliaw test/runtests.jl
-
-test/Manifest.toml: test/Project.toml
-	julia --project=test -e "using Pkg; Pkg.instantiate()"
+install-deps:
+	julia -e 'using Pkg; Pkg.add(PackageSpec(name="JuliaFormatter", version="0.14.4"))'

 .PHONY: docs test format install-deps
--- a/Project.toml
+++ b/Project.toml
@@ -6,7 +6,6 @@ version = "0.2.2"

 [deps]
 DataStructures = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
-Distributed = "8ba89e20-285c-5b6f-9357-94700520ee1b"
 Distributions = "31c24e10-a181-5473-b8eb-7969acd0382f"
 GZip = "92fee26a-97fe-5a0c-ad85-20a5f3185b63"
 JSON = "682c06a0-de6a-54ab-a142-c8b1cf79cde6"
@@ -20,6 +19,7 @@ Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"

 [compat]
+Cbc = "0.7"
 DataStructures = "0.18"
 Distributions = "0.25"
 GZip = "0.5"
@@ -28,3 +28,11 @@ JuMP = "0.21"
 MathOptInterface = "0.9"
 PackageCompiler = "1"
 julia = "1"
+
+[extras]
+Cbc = "9961bab8-2fa3-5c5a-9d89-47fab24efd76"
+Gurobi = "2e9cd046-0924-5485-92f1-d5272153d98b"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+
+[targets]
+test = ["Cbc", "Test", "Gurobi"]
--- a/benchmark/Project.toml
+++ b/benchmark/Project.toml
@@ -1,5 +1,4 @@
 [deps]
-DocOpt = "968ba79b-81e4-546f-ab3a-2eecfa62a9db"
 Gurobi = "2e9cd046-0924-5485-92f1-d5272153d98b"
 JSON = "682c06a0-de6a-54ab-a142-c8b1cf79cde6"
 JuMP = "4076af6c-e467-56ae-b986-b466b2749572"
--- a/benchmark/benchmark.jl
+++ b/benchmark/benchmark.jl
@@ -0,0 +1,158 @@
+# UnitCommitment.jl: Optimization Package for Security-Constrained Unit Commitment
+# Copyright (C) 2020, UChicago Argonne, LLC. All rights reserved.
+# Released under the modified BSD license. See COPYING.md for more details.
+
+using Distributed
+using Pkg
+Pkg.activate(".")
+
+@everywhere using Pkg
+@everywhere Pkg.activate(".")
+
+@everywhere using UnitCommitment
+@everywhere using JuMP
+@everywhere using Gurobi
+@everywhere using JSON
+@everywhere using Logging
+@everywhere using Printf
+@everywhere using LinearAlgebra
+@everywhere using Random
+
+@everywhere import UnitCommitment:
+    ArrCon2000,
+    CarArr2006,
+    DamKucRajAta2016,
+    Formulation,
+    Gar1962,
+    KnuOstWat2018,
+    MorLatRam2013,
+    PanGua2016,
+    XavQiuWanThi2019
+
+@everywhere UnitCommitment._setup_logger()
+
+function main()
+    cases = [
+        "pglib-uc/ca/2014-09-01_reserves_0",
+        "pglib-uc/ca/2014-09-01_reserves_1",
+        "pglib-uc/ca/2015-03-01_reserves_0",
+        "pglib-uc/ca/2015-06-01_reserves_0",
+        "pglib-uc/ca/Scenario400_reserves_1",
+        "pglib-uc/ferc/2015-01-01_lw",
+        "pglib-uc/ferc/2015-05-01_lw",
+        "pglib-uc/ferc/2015-07-01_hw",
+        "pglib-uc/ferc/2015-10-01_lw",
+        "pglib-uc/ferc/2015-12-01_lw",
+        "pglib-uc/rts_gmlc/2020-04-03",
+        "pglib-uc/rts_gmlc/2020-09-20",
+        "pglib-uc/rts_gmlc/2020-10-27",
+        "pglib-uc/rts_gmlc/2020-11-25",
+        "pglib-uc/rts_gmlc/2020-12-23",
+        "or-lib/20_0_1_w",
+        "or-lib/20_0_5_w",
+        "or-lib/50_0_2_w",
+        "or-lib/75_0_2_w",
+        "or-lib/100_0_1_w",
+        "or-lib/100_0_4_w",
+        "or-lib/100_0_5_w",
+        "or-lib/200_0_3_w",
+        "or-lib/200_0_7_w",
+        "or-lib/200_0_9_w",
+        "tejada19/UC_24h_290g",
+        "tejada19/UC_24h_623g",
+        "tejada19/UC_24h_959g",
+        "tejada19/UC_24h_1577g",
+        "tejada19/UC_24h_1888g",
+        "tejada19/UC_168h_72g",
+        "tejada19/UC_168h_86g",
+        "tejada19/UC_168h_130g",
+        "tejada19/UC_168h_131g",
+        "tejada19/UC_168h_199g",
+    ]
+    formulations = Dict(
+        "Default" => Formulation(),
+        "ArrCon2000" => Formulation(ramping = ArrCon2000.Ramping()),
+        "CarArr2006" => Formulation(pwl_costs = CarArr2006.PwlCosts()),
+        "DamKucRajAta2016" =>
+            Formulation(ramping = DamKucRajAta2016.Ramping()),
+        "Gar1962" => Formulation(pwl_costs = Gar1962.PwlCosts()),
+        "KnuOstWat2018" =>
+            Formulation(pwl_costs = KnuOstWat2018.PwlCosts()),
+        "MorLatRam2013" => Formulation(ramping = MorLatRam2013.Ramping()),
+        "PanGua2016" => Formulation(ramping = PanGua2016.Ramping()),
+    )
+    trials = [i for i in 1:5]
+    combinations = [
+        (c, f.first, f.second, t) for c in cases for f in formulations for
+        t in trials
+    ]
+    shuffle!(combinations)
+    @sync @distributed for c in combinations
+        _run_combination(c...)
+    end
+end
+
+@everywhere function _run_combination(
+    case,
+    formulation_name,
+    formulation,
+    trial,
+)
+    name = "$formulation_name/$case"
+    dirname = "results/$name"
+    mkpath(dirname)
+    if isfile("$dirname/$trial.json")
+        @info @sprintf("%-4s %-16s %s", "skip", formulation_name, case)
+        return
+    end
+    @info @sprintf("%-4s %-16s %s", "run", formulation_name, case)
+    open("$dirname/$trial.log", "w") do file
+        redirect_stdout(file) do
+            redirect_stderr(file) do
+                return _run_sample(case, formulation, "$dirname/$trial")
+            end
+        end
+    end
+    @info @sprintf("%-4s %-16s %s", "done", formulation_name, case)
+end
+
+@everywhere function _run_sample(case, formulation, prefix)
+    total_time = @elapsed begin
+        @info "Reading: $case"
+        time_read = @elapsed begin
+            instance = UnitCommitment.read_benchmark(case)
+        end
+        @info @sprintf("Read problem in %.2f seconds", time_read)
+        BLAS.set_num_threads(4)
+        model = UnitCommitment.build_model(
+            instance = instance,
+            formulation = formulation,
+            optimizer = optimizer_with_attributes(
+                Gurobi.Optimizer,
+                "Threads" => 4,
+                "Seed" => rand(1:1000),
+            ),
+            variable_names = true,
+        )
+        @info "Optimizing..."
+        BLAS.set_num_threads(1)
+        UnitCommitment.optimize!(
+            model,
+            XavQiuWanThi2019.Method(time_limit = 3600.0, gap_limit = 1e-4),
+        )
+    end
+    @info @sprintf("Total time was %.2f seconds", total_time)
+    @info "Writing solution: $prefix.json"
+    solution = UnitCommitment.solution(model)
+    UnitCommitment.write("$prefix.json", solution)
+    @info "Verifying solution..."
+    return UnitCommitment.validate(instance, solution)
+    # @info "Exporting model..."
+    # return JuMP.write_to_file(model, model_filename)
+end
+
+if length(ARGS) > 0
+    _run_sample(ARGS[1], UnitCommitment.Formulation(), "tmp")
+else
+    main()
+end
--- a/benchmark/run.jl
+++ b/benchmark/run.jl
@@ -1,207 +0,0 @@
-# UnitCommitment.jl: Optimization Package for Security-Constrained Unit Commitment
-# Copyright (C) 2020, UChicago Argonne, LLC. All rights reserved.
-# Released under the modified BSD license. See COPYING.md for more details.
-
-doc = """UnitCommitment.jl Benchmark Runner
-
-Usage:
-  run.jl [-s ARG]... [-m ARG]... [-c ARG]... [-f ARG]... [options]
-
-Examples:
-
-    1. Benchmark all solvers, methods and formulations:
-
-        julia run.jl
-
-    2. Benchmark formulations "default" and "ArrCon200" using Gurobi:
-
-        julia run.jl -s gurobi -f default -f ArrCon2000
-
-    3. Benchmark a few test cases, using all solvers, methods and formulations:
-
-        julia run.jl -c or-lib/20_0_1_w -c matpower/case1888rte/2017-02-01
-
-    4. Solve 4 test cases in parallel, with 2 threads available per worker:
-
-        JULIA_NUM_THREADS=2 julia --procs 4 run.jl
-
-Options:
-  -h --help             Show this screen.
-  -s --solver=ARG       Mixed-integer linear solver (e.g. gurobi)
-  -c --case=ARG         Unit commitment test case (e.g. or-lib/20_0_1_w)
-  -m --method=ARG       Solution method (e.g. default)
-  -f --formulation=ARG  Formulation (e.g. ArrCon2000)
-  --time-limit=ARG      Time limit in seconds [default: 3600]
-  --gap=ARG             Relative MIP gap tolerance [default: 0.001]
-  --trials=ARG          Number of trials [default: 5]
-"""
-
-using Distributed
-using Pkg
-Pkg.activate(".")
-@everywhere using Pkg
-@everywhere Pkg.activate(".")
-
-using DocOpt
-args = docopt(doc)
-
-@everywhere using UnitCommitment
-@everywhere UnitCommitment._setup_logger()
-
-using UnitCommitment
-using Gurobi
-using Logging
-using JuMP
-
-import UnitCommitment:
-    ArrCon2000,
-    CarArr2006,
-    DamKucRajAta2016,
-    Formulation,
-    Gar1962,
-    KnuOstWat2018,
-    MorLatRam2013,
-    PanGua2016,
-    XavQiuWanThi2019
-
-# Benchmark test cases
-# -----------------------------------------------------------------------------
-cases = [
-    "pglib-uc/ca/2014-09-01_reserves_0",
-    "pglib-uc/ca/2014-09-01_reserves_1",
-    "pglib-uc/ca/2015-03-01_reserves_0",
-    "pglib-uc/ca/2015-06-01_reserves_0",
-    "pglib-uc/ca/Scenario400_reserves_1",
-    "pglib-uc/ferc/2015-01-01_lw",
-    "pglib-uc/ferc/2015-05-01_lw",
-    "pglib-uc/ferc/2015-07-01_hw",
-    "pglib-uc/ferc/2015-10-01_lw",
-    "pglib-uc/ferc/2015-12-01_lw",
-    "pglib-uc/rts_gmlc/2020-04-03",
-    "pglib-uc/rts_gmlc/2020-09-20",
-    "pglib-uc/rts_gmlc/2020-10-27",
-    "pglib-uc/rts_gmlc/2020-11-25",
-    "pglib-uc/rts_gmlc/2020-12-23",
-    "or-lib/20_0_1_w",
-    "or-lib/20_0_5_w",
-    "or-lib/50_0_2_w",
-    "or-lib/75_0_2_w",
-    "or-lib/100_0_1_w",
-    "or-lib/100_0_4_w",
-    "or-lib/100_0_5_w",
-    "or-lib/200_0_3_w",
-    "or-lib/200_0_7_w",
-    "or-lib/200_0_9_w",
-    "tejada19/UC_24h_290g",
-    "tejada19/UC_24h_623g",
-    "tejada19/UC_24h_959g",
-    "tejada19/UC_24h_1577g",
-    "tejada19/UC_24h_1888g",
-    "tejada19/UC_168h_72g",
-    "tejada19/UC_168h_86g",
-    "tejada19/UC_168h_130g",
-    "tejada19/UC_168h_131g",
-    "tejada19/UC_168h_199g",
-    "matpower/case1888rte/2017-02-01",
-    "matpower/case1951rte/2017-02-01",
-    "matpower/case2848rte/2017-02-01",
-    "matpower/case3012wp/2017-02-01",
-    "matpower/case3375wp/2017-02-01",
-    "matpower/case6468rte/2017-02-01",
-    "matpower/case6515rte/2017-02-01",
-]
-
-# Formulations
-# -----------------------------------------------------------------------------
-formulations = Dict(
-    "default" => Formulation(),
-    "ArrCon2000" => Formulation(ramping = ArrCon2000.Ramping()),
-    "CarArr2006" => Formulation(pwl_costs = CarArr2006.PwlCosts()),
-    "DamKucRajAta2016" => Formulation(ramping = DamKucRajAta2016.Ramping()),
-    "Gar1962" => Formulation(pwl_costs = Gar1962.PwlCosts()),
-    "KnuOstWat2018" => Formulation(pwl_costs = KnuOstWat2018.PwlCosts()),
-    "MorLatRam2013" => Formulation(ramping = MorLatRam2013.Ramping()),
-    "PanGua2016" => Formulation(ramping = PanGua2016.Ramping()),
-)
-
-# Solution methods
-# -----------------------------------------------------------------------------
-methods = Dict(
-    "default" =>
-        XavQiuWanThi2019.Method(time_limit = 3600.0, gap_limit = 1e-4),
-)
-
-# MIP solvers
-# -----------------------------------------------------------------------------
-optimizers = Dict(
-    "gurobi" => optimizer_with_attributes(
-        Gurobi.Optimizer,
-        "Threads" => Threads.nthreads(),
-    ),
-)
-
-# Parse command line arguments
-# -----------------------------------------------------------------------------
-if !isempty(args["--case"])
-    cases = args["--case"]
-end
-if !isempty(args["--formulation"])
-    formulations = filter(p -> p.first in args["--formulation"], formulations)
-end
-if !isempty(args["--method"])
-    methods = filter(p -> p.first in args["--method"], methods)
-end
-if !isempty(args["--solver"])
-    optimizers = filter(p -> p.first in args["--solver"], optimizers)
-end
-const time_limit = parse(Float64, args["--time-limit"])
-const gap_limit = parse(Float64, args["--gap"])
-const ntrials = parse(Int, args["--trials"])
-
-# Print benchmark settings
-# -----------------------------------------------------------------------------
-function printlist(d::Dict)
-    for key in keys(d)
-        @info "  - $key"
-    end
-end
-
-function printlist(d::Vector)
-    for key in d
-        @info "  - $key"
-    end
-end
-
-@info "Computational environment:"
-@info "  - CPU: $(Sys.cpu_info()[1].model)"
-@info "  - Logical CPU cores: $(length(Sys.cpu_info()))"
-@info "  - System memory: $(round(Sys.total_memory() / 2^30, digits=2)) GiB"
-@info "  - Available workers: $(nworkers())"
-@info "  - Available threads per worker: $(Threads.nthreads())"
-
-@info "Parameters:"
-@info "  - Number of trials: $ntrials"
-@info "  - Time limit (s): $time_limit"
-@info "  - Relative MIP gap tolerance: $gap_limit"
-
-@info "Solvers:"
-printlist(optimizers)
-
-@info "Methods:"
-printlist(methods)
-
-@info "Formulations:"
-printlist(formulations)
-
-@info "Cases:"
-printlist(cases)
-
-# Run benchmarks
-# -----------------------------------------------------------------------------
-UnitCommitment._run_benchmarks(
-    cases = cases,
-    formulations = formulations,
-    methods = methods,
-    optimizers = optimizers,
-    trials = 1:ntrials,
-)
--- a/deps/formatter/Project.toml
+++ b/deps/formatter/Project.toml
@@ -1,5 +0,0 @@
-[deps]
-JuliaFormatter = "98e50ef6-434e-11e9-1051-2b60c6c9e899"
-
-[compat]
-JuliaFormatter = "0.14.4"
--- a/deps/formatter/format.jl
+++ b/deps/formatter/format.jl
@@ -1,9 +0,0 @@
-using JuliaFormatter
-format(
-    [
-        "../../src", 
-        "../../test",
-        "../../benchmark/run.jl",
-    ],
-    verbose=true,
-)
--- a/68
+++ b/68
@@ -1,68 +0,0 @@
-#!/bin/bash
-# UnitCommitment.jl: Optimization Package for Security-Constrained Unit Commitment
-# Copyright (C) 2020-2021, UChicago Argonne, LLC. All rights reserved.
-# Released under the modified BSD license. See COPYING.md for more details.
-
-if [ ! -e Project.toml ]; then
-    echo "juliaw: Project.toml not found"
-    exit 1
-fi
-
-if [ ! -e Manifest.toml ]; then
-    julia --project=. -e 'using Pkg; Pkg.instantiate()' || exit 1
-fi
-
-if [ ! -e build/sysimage.so -o Project.toml -nt build/sysimage.so ]; then
-    echo "juliaw: rebuilding system image..."
-
-    # Generate temporary project folder
-    rm -rf $HOME/.juliaw
-    mkdir -p $HOME/.juliaw/src
-    cp Project.toml Manifest.toml $HOME/.juliaw
-    NAME=$(julia -e 'using TOML; toml = TOML.parsefile("Project.toml"); "name" in keys(toml) && print(toml["name"])')
-    if [ ! -z $NAME ]; then
-        cat > $HOME/.juliaw/src/$NAME.jl << EOF
-module $NAME
-end
-EOF
-    fi
-
-    # Add PackageCompiler dependencies to temporary project
-    julia --project=$HOME/.juliaw -e 'using Pkg; Pkg.add(["PackageCompiler", "TOML", "Logging"])'
-
-    # Generate system image scripts
-    cat > $HOME/.juliaw/sysimage.jl << EOF
-using PackageCompiler
-using TOML
-using Logging
-
-Logging.disable_logging(Logging.Info)
-mkpath("$PWD/build")
-
-println("juliaw: generating precompilation statements...")
-run(\`julia --project="$PWD" --trace-compile="$PWD"/build/precompile.jl \$(ARGS)\`)
-
-println("juliaw: finding dependencies...")
-project = TOML.parsefile("Project.toml")
-manifest = TOML.parsefile("Manifest.toml")
-deps = Symbol[]
-for dep in keys(project["deps"])
-    if "path" in keys(manifest[dep][1])
-        println("  - \$(dep) [skip]")
-    else
-        println("  - \$(dep)")
-        push!(deps, Symbol(dep))
-    end
-end
-
-println("juliaw: building system image...")
-create_sysimage(
-    deps,
-    precompile_statements_file = "$PWD/build/precompile.jl",
-    sysimage_path = "$PWD/build/sysimage.so",
-)
-EOF
-    julia --project=$HOME/.juliaw $HOME/.juliaw/sysimage.jl $* 
-else
-    julia --project=. --sysimage build/sysimage.so $*
-fi
--- a/src/UnitCommitment.jl
+++ b/src/UnitCommitment.jl
@@ -50,7 +50,6 @@ include("transform/initcond.jl")
 include("transform/slice.jl")
 include("transform/randomize/XavQiuAhm2021.jl")
 include("utils/log.jl")
-include("utils/benchmark.jl")
 include("validation/repair.jl")
 include("validation/validate.jl")

--- a/src/instance/read.jl
+++ b/src/instance/read.jl
@@ -266,20 +266,15 @@ function _from_json(json; repair = true)
    end

    instance = UnitCommitmentInstance(
-        buses_by_name = Dict(b.name => b for b in buses),
-        buses = buses,
-        contingencies_by_name = Dict(c.name => c for c in contingencies),
-        contingencies = contingencies,
-        lines_by_name = Dict(l.name => l for l in lines),
-        lines = lines,
-        power_balance_penalty = power_balance_penalty,
-        price_sensitive_loads_by_name = Dict(ps.name => ps for ps in loads),
-        price_sensitive_loads = loads,
-        reserves = reserves,
-        shortfall_penalty = shortfall_penalty,
-        time = T,
-        units_by_name = Dict(g.name => g for g in units),
-        units = units,
+        T,
+        power_balance_penalty,
+        shortfall_penalty,
+        units,
+        buses,
+        lines,
+        reserves,
+        contingencies,
+        loads,
    )
    if repair
        UnitCommitment.repair!(instance)
--- a/src/instance/structs.jl
+++ b/src/instance/structs.jl
@@ -69,21 +69,17 @@ mutable struct PriceSensitiveLoad
    revenue::Vector{Float64}
 end

-Base.@kwdef mutable struct UnitCommitmentInstance
-    buses_by_name::Dict{AbstractString,Bus}
-    buses::Vector{Bus}
-    contingencies_by_name::Dict{AbstractString,Contingency}
-    contingencies::Vector{Contingency}
-    lines_by_name::Dict{AbstractString,TransmissionLine}
-    lines::Vector{TransmissionLine}
-    power_balance_penalty::Vector{Float64}
-    price_sensitive_loads_by_name::Dict{AbstractString,PriceSensitiveLoad}
-    price_sensitive_loads::Vector{PriceSensitiveLoad}
-    reserves::Reserves
-    shortfall_penalty::Vector{Float64}
+mutable struct UnitCommitmentInstance
    time::Int
-    units_by_name::Dict{AbstractString,Unit}
+    power_balance_penalty::Vector{Float64}
+    "Penalty for failing to meet reserve requirement."
+    shortfall_penalty::Vector{Float64}
    units::Vector{Unit}
+    buses::Vector{Bus}
+    lines::Vector{TransmissionLine}
+    reserves::Reserves
+    contingencies::Vector{Contingency}
+    price_sensitive_loads::Vector{PriceSensitiveLoad}
 end

 function Base.show(io::IO, instance::UnitCommitmentInstance)
--- a/src/utils/benchmark.jl
+++ b/src/utils/benchmark.jl
@@ -1,116 +0,0 @@
-# UnitCommitment.jl: Optimization Package for Security-Constrained Unit Commitment
-# Copyright (C) 2020, UChicago Argonne, LLC. All rights reserved.
-# Released under the modified BSD license. See COPYING.md for more details.
-
-using Distributed
-using Random
-
-function _run_benchmark_sample(;
-    case::String,
-    method::SolutionMethod,
-    formulation::Formulation,
-    solution_filename::String,
-    optimizer,
-)::Nothing
-    total_time = @elapsed begin
-        @info "Reading: $case"
-        time_read = @elapsed begin
-            instance = read_benchmark(case)
-        end
-        @info @sprintf("Read problem in %.2f seconds", time_read)
-        BLAS.set_num_threads(Threads.nthreads())
-        model = build_model(
-            instance = instance,
-            formulation = formulation,
-            optimizer = optimizer,
-            variable_names = true,
-        )
-        @info "Optimizing..."
-        BLAS.set_num_threads(1)
-        optimize!(model, method)
-    end
-    @info @sprintf("Total time was %.2f seconds", total_time)
-
-    @info "Writing solution: $solution_filename"
-    solution = UnitCommitment.solution(model)
-    write("$solution_filename", solution)
-
-    @info "Verifying solution..."
-    validate(instance, solution)
-    return
-end
-
-function _run_benchmark_combination(
-    case::String,
-    optimizer_name::String,
-    optimizer,
-    method_name::String,
-    method::SolutionMethod,
-    formulation_name::String,
-    formulation::Formulation,
-    trial,
-)
-    dirname = "results/$optimizer_name/$method_name/$formulation_name/$case"
-    function info(msg)
-        @info @sprintf(
-            "%-8s %-16s %-16s %-16s %-8s %s",
-            msg,
-            optimizer_name,
-            method_name,
-            formulation_name,
-            trial,
-            case
-        )
-    end
-    mkpath(dirname)
-    trial_filename = @sprintf("%s/%03d.json", dirname, trial)
-    if isfile(trial_filename)
-        info("skip")
-        return
-    end
-    info("run")
-    open("$trial_filename.log", "w") do file
-        redirect_stdout(file) do
-            redirect_stderr(file) do
-                return _run_benchmark_sample(
-                    case = case,
-                    method = method,
-                    formulation = formulation,
-                    solution_filename = trial_filename,
-                    optimizer = optimizer,
-                )
-            end
-        end
-    end
-    return info("done")
-end
-
-function _run_benchmarks(;
-    cases::Vector{String},
-    optimizers::Dict,
-    formulations::Dict,
-    methods::Dict,
-    trials,
-)
-    combinations = [
-        (c, s.first, s.second, m.first, m.second, f.first, f.second, t) for
-        c in cases for s in optimizers for f in formulations for
-        m in methods for t in trials
-    ]
-    shuffle!(combinations)
-    if nworkers() > 1
-        @printf("%24s", "")
-    end
-    @info @sprintf(
-        "%-8s %-16s %-16s %-16s %-8s %s",
-        "STATUS",
-        "SOLVER",
-        "METHOD",
-        "FORMULATION",
-        "TRIAL",
-        "CASE"
-    )
-    @sync @distributed for c in combinations
-        _run_benchmark_combination(c...)
-    end
-end
--- a/src/utils/sysimage.jl
+++ b/src/utils/sysimage.jl
@@ -0,0 +1,28 @@
+# UnitCommitment.jl: Optimization Package for Security-Constrained Unit Commitment
+# Copyright (C) 2020, UChicago Argonne, LLC. All rights reserved.
+# Released under the modified BSD license. See COPYING.md for more details.
+
+using PackageCompiler
+
+using DataStructures
+using Distributions
+using JSON
+using JuMP
+using MathOptInterface
+using SparseArrays
+
+pkg = [
+    :DataStructures,
+    :Distributions,
+    :JSON,
+    :JuMP,
+    :MathOptInterface,
+    :SparseArrays,
+]
+
+@info "Building system image..."
+create_sysimage(
+    pkg,
+    precompile_statements_file = "build/precompile.jl",
+    sysimage_path = "build/sysimage.so",
+)
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -1,26 +0,0 @@
-[deps]
-Cbc = "9961bab8-2fa3-5c5a-9d89-47fab24efd76"
-DataStructures = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
-Distributions = "31c24e10-a181-5473-b8eb-7969acd0382f"
-GZip = "92fee26a-97fe-5a0c-ad85-20a5f3185b63"
-Gurobi = "2e9cd046-0924-5485-92f1-d5272153d98b"
-JSON = "682c06a0-de6a-54ab-a142-c8b1cf79cde6"
-JuMP = "4076af6c-e467-56ae-b986-b466b2749572"
-LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
-Logging = "56ddb016-857b-54e1-b83d-db4d58db5568"
-MathOptInterface = "b8f27783-ece8-5eb3-8dc8-9495eed66fee"
-PackageCompiler = "9b87118b-4619-50d2-8e1e-99f35a4d4d9d"
-Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
-Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
-SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
-Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
-
-[compat]
-DataStructures = "0.18"
-Distributions = "0.25"
-GZip = "0.5"
-JSON = "0.21"
-JuMP = "0.21"
-MathOptInterface = "0.9"
-PackageCompiler = "1"
-julia = "1"
--- a/test/import/egret_test.jl
+++ b/test/import/egret_test.jl
@@ -4,12 +4,9 @@

 using UnitCommitment

-basedir = @__DIR__
-
@testset "read_egret_solution" begin
-    solution = UnitCommitment.read_egret_solution(
-        "$basedir/../fixtures/egret_output.json.gz",
-    )
+    solution =
+        UnitCommitment.read_egret_solution("fixtures/egret_output.json.gz")
    for attr in ["Is on", "Production (MW)", "Production cost (\$)"]
        @test attr in keys(solution)
        @test "115_STEAM_1" in keys(solution[attr])
--- a/test/instance/read_test.jl
+++ b/test/instance/read_test.jl
@@ -22,7 +22,6 @@ using UnitCommitment, LinearAlgebra, Cbc, JuMP, JSON, GZip
    @test instance.lines[5].normal_flow_limit == [1e8 for t in 1:4]
    @test instance.lines[5].emergency_flow_limit == [1e8 for t in 1:4]
    @test instance.lines[5].flow_limit_penalty == [5e3 for t in 1:4]
-    @test instance.lines_by_name["l5"].name == "l5"

    @test instance.lines[1].name == "l1"
    @test instance.lines[1].source.name == "b1"
@@ -35,7 +34,6 @@ using UnitCommitment, LinearAlgebra, Cbc, JuMP, JSON, GZip

    @test instance.buses[9].name == "b9"
    @test instance.buses[9].load == [35.36638, 33.25495, 31.67138, 31.14353]
-    @test instance.buses_by_name["b9"].name == "b9"

    unit = instance.units[1]
    @test unit.name == "g1"
@@ -64,7 +62,6 @@ using UnitCommitment, LinearAlgebra, Cbc, JuMP, JSON, GZip
    @test unit.startup_categories[1].cost == 1000.0
    @test unit.startup_categories[2].cost == 1500.0
    @test unit.startup_categories[3].cost == 2000.0
-    @test instance.units_by_name["g1"].name == "g1"

    unit = instance.units[2]
    @test unit.name == "g2"
@@ -95,15 +92,12 @@ using UnitCommitment, LinearAlgebra, Cbc, JuMP, JSON, GZip

    @test instance.contingencies[1].lines == [instance.lines[1]]
    @test instance.contingencies[1].units == []
-    @test instance.contingencies[1].name == "c1"
-    @test instance.contingencies_by_name["c1"].name == "c1"

    load = instance.price_sensitive_loads[1]
    @test load.name == "ps1"
    @test load.bus.name == "b3"
    @test load.revenue == [100.0 for t in 1:4]
    @test load.demand == [50.0 for t in 1:4]
-    @test instance.price_sensitive_loads_by_name["ps1"].name == "ps1"
 end

@testset "read_benchmark sub-hourly" begin
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -5,7 +5,6 @@
 using Test
 using UnitCommitment

-push!(Base.LOAD_PATH, @__DIR__)
 UnitCommitment._setup_logger()

 const ENABLE_LARGE_TESTS = ("UCJL_LARGE_TESTS" in keys(ENV))
--- a/test/transform/initcond_test.jl
+++ b/test/transform/initcond_test.jl
@@ -4,12 +4,9 @@

 using UnitCommitment, Cbc, JuMP

-basedir = @__DIR__
-
@testset "generate_initial_conditions!" begin
    # Load instance
-    instance =
-        UnitCommitment.read("$basedir/../fixtures/case118-initcond.json.gz")
+    instance = UnitCommitment.read("$(pwd())/fixtures/case118-initcond.json.gz")
    optimizer = optimizer_with_attributes(Cbc.Optimizer, "logLevel" => 0)

    # All units should have unknown initial conditions
--- a/test/validation/repair_test.jl
+++ b/test/validation/repair_test.jl
@@ -4,11 +4,9 @@

 using UnitCommitment, JSON, GZip, DataStructures

-basedir = @__DIR__
-
 function parse_case14()
    return JSON.parse(
-        GZip.gzopen("$basedir/../../instances/test/case14.json.gz"),
+        GZip.gzopen("../instances/test/case14.json.gz"),
        dicttype = () -> DefaultOrderedDict(nothing),
    )
 end