This document is relevant for: Inf1, Inf2, Trn1, Trn2, Trn3

Neuron Explorer Replaces Neuron Profiler, Starting with Neuron 2.29#

Starting with Neuron 2.29, Neuron Profiler and Profiler 2.0 (UI and CLI) will reach end of support and be replaced by Neuron Explorer. If you are currently using the Neuron Profiler, migrate to Neuron Explorer before the Neuron 2.29 release.

For migration guidance, see the Migration Guide from Neuron Profiler to Neuron Explorer.

What is Neuron Explorer?#

Neuron Explorer is the next-generation suite of tools, guiding developers through their development journey on Trainium. It enables ML performance engineers to:

  • Trace execution end-to-end — from source code down to hardware operations.

  • Analyze model behavior at every layer of the stack — with detailed breakdowns per operation, per core, and per device.

  • Profile distributed workloads — with native support for multi-node and multi-worker analysis at scale.

For more details, see Neuron Explorer.

How does this impact current Neuron Profiler users?#

Important

Neuron strongly recommends migrating to Neuron Explorer before the Neuron 2.29 release.

There are two things to be aware of when migrating:

  • Existing NTFF profile files are supported, but must be reprocessed before they can be viewed in the Neuron Explorer UI.

  • New features require new profiles. To access the full set of Neuron Explorer capabilities, you must recapture your profiles using the updated tooling.

For detailed migration steps, see the Migration Guide from Neuron Profiler to Neuron Explorer and the Neuron Explorer FAQ.

What happens to Neuron Profiler after Neuron 2.29?#

After Neuron 2.29, Neuron Profiler will:

  • No longer receive bug fixes, feature updates, or technical support.

  • No longer be distributed as part of the Neuron SDK.

If you need to continue using Neuron Profiler temporarily, you must pin your environment to Neuron 2.28 or earlier. This is not recommended, as you will not receive any SDK updates or security fixes.

This document is relevant for: Inf1, Inf2, Trn1, Trn2, Trn3