Sam White

Sam graduated with a PhD in Computer Science in 2022. He joined PPL in 2014 after receiving a BA in Computer Science from Swarthmore College. His research focused on dynamic runtime support for legacy MPI applications and communication optimizations for MPI programs in a virtualized, multithreaded execution model.

Research Areas

Papers / Talks

22-10

2022
Phd Thesis
Runtime Techniques for Efficient Execution of Virtualized, Migratable MPI Ranks
- Sam White
22-08

2022
Paper
Improving Communication Asynchrony and Concurrency for Adaptive MPI Endpoints
- Sam White
- Laxmikant Vasudeo Kale
22-07

2022
Paper
Runtime Techniques for Automatic Process Virtualization
- Evan Ramos
- Sam White
- Aditya Bhosale
- Laxmikant Vasudeo Kale
22-03

2022
Paper
Optimizing Non-Commutative Allreduce over Virtualized, Migratable MPI Ranks
- Sam White
- Laxmikant Vasudeo Kale
22-02

2022
Paper
Accelerating Messages by Avoiding Copies in an Asynchronous Task-based Programming Model
- Nitin Bhat
- Sam White
- Laxmikant Vasudeo Kale
22-01

2022
Paper
Enabling Support for Zero Copy Semantics in an Asynchronous Task-Based Programming Model
- Nitin Bhat
- Sam White
- Laxmikant Vasudeo Kale
21-01

2021
Paper
GPU-aware Communication with UCX in Parallel Programming Models: Charm++, MPI, and Python
- Jaemin Choi
- Zane Fink
- Sam White
- Nitin Bhat
- David F. Richards
- Laxmikant Vasudeo Kale
18-02

2018
Paper
Multi-level Load Balancing with an Integrated Runtime Approach
- Seonmyeong Bak
- Harshitha Menon
- Sam White
- Matthias Diener
- Laxmikant Vasudeo Kale
18-01

2018
Talk
Optimizing Point-to-Point Communication between Adaptive MPI Endpoints in Shared Memory
- Sam White
17-10

2017
Paper
Optimizing Point-to-Point Communication between Adaptive MPI Endpoints in Shared Memory
- Sam White
- Laxmikant Vasudeo Kale
17-08

2017
Paper
Integrating OpenMP into the Charm++ Programming Model
- Seonmyeong Bak
- Harshitha Menon
- Sam White
- Matthias Diener
- Laxmikant Vasudeo Kale
17-07

2017
Paper
Visualizing, measuring, and tuning Adaptive MPI parameters
- Matthias Diener
- Sam White
- Laxmikant Vasudeo Kale
17-06

2017
Poster
Adaptive MPI: Dynamic Runtime Support for MPI Applications
- Sam White
- Laxmikant Vasudeo Kale
17-05

2017
Paper
Improving the memory access locality of hybrid MPI applications
- Matthias Diener
- Sam White
- Laxmikant Vasudeo Kale
- Michael Campbell
- Dan Bodony
- Jon Freund
16-19

2016
Paper
Handling Transient and Persistent Imbalance Together in Distributed and Shared Memory
- Harshitha Menon
- Seonmyeong Bak
- Phil Miller
- Sam White
- Nitin Bhat
- Laxmikant Vasudeo Kale
16-11

2016
Paper
Evaluating HPC Networks via Simulation of Parallel Workloads
- Nikhil Jain
- Abhinav Bhatele
- Sam White
- Todd Gamblin
- Laxmikant Vasudeo Kale
16-09

2016
Talk
Adaptive MPI: Overview & Recent Work
- Sam White
16-07

2016
Talk
Introducing Over-decomposition to Existing Applications: A Case Study with PlasComCM and Adaptive MPI
- Sam White
16-06

2016
Talk
Charm++ and AMPI
- Sam White