Nathan Hanford
Computer Scientist at Lawrence Livermore National Laboratory
Livermore, California, United States
Summary
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Top SchoolNathan Hanford is a computer scientist at Lawrence Livermore National Laboratory with 11 years of experience specializing in portability and ABI-level interoperability for parallel applications. He designs and verifies development environments, advances MPI support, and leads system-wide accelerator-aware interconnect benchmarking to inform codesign and system acceptance decisions. Nathan contributes to the Spack BUILD Strategic Initiative—improving core package-manager functionality and build-cache handling—and collaborates internationally on Wi4MPI to dynamically bridge ABI-incompatible MPI at runtime. His background in high-performance networking, including work on NIC offloads and congestion avoidance during a long-running ESnet internship, gives him a systems-level perspective on end-to-end performance. He pairs deep research credentials (PhD, UC Davis) with practical DevOps and back-end engineering, regularly working with vendor partners to increase middleware portability across heterogeneous clusters. Colleagues rely on him for pragmatic designs that translate complex HPC research into deployable, portable solutions.
10 years of coding experience
11 years of employment as a software developer
Doctor of Philosophy (PhD), Computer Science, 3.96, Doctor of Philosophy (PhD), Computer Science, 3.96 at University of California, DavisBSE, Computer Science and Engineering, 3.7, BSE, Computer Science and Engineering, 3.7 at The University of Connecticut
Stackoverflow
11reputation
2kreached
1answer
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Github Skills (12)
release-management10
build-tools10
build-system10
python10
package-management10
scientific-computing10
package-manager9
hpc9
package-manager-tool9
linux6
networking6
tcp6
Programming languages (4)
Github contributions (5)
spack/spack
Jan 2021 - Apr 2022
A flexible package manager that supports multiple versions, configurations, platforms, and compilers.
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:69 reviews, 7 commits, 9 PRs in 1 year 2 months
Contributions summary:Nathan primarily focused on refactoring and optimizing core functionality within the Spack package manager. Their contributions included parallelizing test replacement logic in the `relocate.py` module and introducing a new `splice` method in the `Spec` class. They also worked on migrating the spec format to `spec.json` and implementing rewiring capabilities for spliced specs. These changes involved modifying file relocation processes, updating build cache management, and ensuring compatibility with the new format.
compilerspythonradiussplatformslinux
chapmanmp/NetworkControl
Feb 2017 - Jun 2018
Contributions:157 pushes in 1 year 4 months
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