Alan Gray

Alan Gray is a Principal Developer Technology Engineer at NVIDIA where he specializes in application optimization, particularly on large-scale GPU-accelerated architectures. Previously, he worked at Edinburgh Parallel Computing Centre (EPCC) at The University of Edinburgh, where he was involved in a wide variety of projects covering many scientific, engineering, and industrial areas, with a particular interest in multi-GPU programming. His career began in the area of particle physics, using Lattice QCD techniques to simulate fundamental particle states and interactions. He received a Ph.D. from the University of Glasgow for which his thesis was awarded the UK-wide Ogden Prize in particle physics phenomenology, and he also spent two years furthering this research under a fellowship at The Ohio State University before moving to EPCC.
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Posts by Alan Gray

Data Center / Cloud

Spotlight: University of Tokyo Uses NVIDIA Grace Hopper for Groundbreaking Energy-Efficient Seismic Research

Supercomputers are the engines of groundbreaking discoveries. From predicting extreme weather to advancing disease research and designing safer, more efficient... 6 MIN READ
Generative AI

Optimizing llama.cpp AI Inference with CUDA Graphs

The open-source llama.cpp code base was originally released in 2023 as a lightweight but efficient framework for performing inference on Meta Llama models.... 8 MIN READ
Biomolecule
Simulation / Modeling / Design

A Guide to CUDA Graphs in GROMACS 2023

GPUs continue to get faster with each new generation, and it is often the case that each activity on the GPU (such as a kernel or memory copy) completes very... 13 MIN READ
Simulation / Modeling / Design

Massively Improved Multi-node NVIDIA GPU Scalability with GROMACS

GROMACS, a scientific software package widely used for simulating biomolecular systems, plays a crucial role in comprehending important biological processes... 8 MIN READ
Logo for GROMACS
Simulation / Modeling / Design

Maximizing GROMACS Throughput with Multiple Simulations per GPU Using MPS and MIG

GROMACS, a simulation package for biomolecular systems, is one of the most highly used scientific software applications worldwide, and a key tool in... 19 MIN READ
Simulation / Modeling / Design

Creating Faster Molecular Dynamics Simulations with GROMACS 2020

GROMACS—one of the most widely used HPC applications— has received a major upgrade with the release of GROMACS 2020. The new version includes exciting new... 13 MIN READ