Jason Sewall

Jason Sewall is a principal software architect at NVIDIA, where he works on AI infrastructure, which includes performance tuning, failure diagnostics, and software stack improvements. Jason has a PhD and a master’s degree in Computer Science from the University of North Carolina, as well as bachelor’s degrees in Computer Science and Mathematics from the University of Maine. Jason has been at NVIDIA since 2022 after a long career at Intel. He lives in coastal Maine.
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Posts by Jason Sewall

Data Center / Cloud Nov 02, 2026

Diagnose Distributed AI Workload Failures with NVIDIA Attribution

In distributed AI workloads, a single error can produce a cascade of symptoms. A GPU or fabric event may surface as NCCL errors on other ranks, scheduler state... 10 MIN READ
Networking / Communications Dec 10, 2025

Enhancing Communication Observability of AI Workloads with NCCL Inspector

When using the NVIDIA Collective Communication Library (NCCL) to run a deep learning training or inference workload that uses collective operations (such as... 6 MIN READ