ENACT Replication Package

This repository contains the code, processed inputs, experiment outputs, and analysis artifacts for:

Energy-Aware Test Prioritization for High-Performance Computing: A Multi-Objective Approach

ENACT uses NSGA-II to select and order LAMMPS tests while optimizing four objectives:

• maximize modified-statement coverage
• minimize energy consumption
• minimize execution time
• minimize selected test count

Main implementation

The primary ENACT implementation is:

nsga2_runs/scripts/nsga2_final.py

Related baseline and preprocessing scripts are under:

nsga2_runs/scripts/

Important scripts include:

• baselines.py
• build_line_index.py
• nsga2_all_prs.py
• nsga2_with_order.py
• nsga_calculate_en.py

Experiment configuration

The paper configuration uses:

Population size: 80
Generations: 120

The included result set contains:

• 1,257 retained changes
• 613 tests
• full-suite energy of 188,600.30 J
• full-suite execution time of 5,812.09 s

Repository structure

Path	Contents
nsga2_runs/scripts/	ENACT, baseline, and preprocessing scripts
nsga2_runs/out/	Runtime inputs, Pareto fronts, summaries, tables, and figures
Workflow_runs/	GitHub Actions workflow metadata
Workflow_Energy_Consumption/	Per-test energy summaries and utilities
energy_results/	Energy measurement results
coverage_results/	Coverage collection results
unittest_linux_bigbig_coverage/	Test lists and processed coverage artifacts

Setup

Create a Python environment and install the required packages:

python3 -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt

View the available command-line options:

python nsga2_runs/scripts/nsga2_final.py --help

Runtime inputs

The optimizer uses the compact line-to-test index:

nsga2_runs/out/line_index.npz
nsga2_runs/out/line_index_tests.txt
nsga2_runs/out/line_index_lines.txt

These files are sufficient to run ENACT and the included baselines.

Results

The canonical result directory is:

nsga2_runs/out/nsga2_canonB/

Per-change Pareto fronts are available under:

nsga2_runs/out/nsga2_canonB/pareto/

The aggregate summary is:

nsga2_runs/out/nsga2_canonB/summary.csv

Additional tables, figures, baseline outputs, and analysis files are under:

nsga2_runs/out/

Raw data archive

The large raw coverage and energy artifacts are available on Zenodo:

https://doi.org/10.5281/zenodo.21266181

The archive contains:

• raw per-test coverage files
• coverage matrices
• the line-to-test mapping
• coverage logs
• energy measurement artifacts
• SHA-256 checksums

License

The source code is released under the MIT License.

Citation

Citation metadata is available in CITATION.cff.