This document is relevant for: Inf1, Trn1

Neuron Driver Release Notes#

Known issues#

Updated : 04/29/2022

  • In rare cases of multi-process applications running under heavy stress a model load failure my occur. This may require reloading of the Neuron Driver as a workaround.

Neuron Driver release [2.6.26.0]#

Date: 11/07/2022

New in this release#

  • Minor bug fixes and improvements.

Neuron Driver release [2.5.38.0]#

Neuron Driver now supports INF1 and TRN1 EC2 instance types. Name of the driver package changed from aws-neuron-dkms to aws-neuronx-dkms. Please remove the older driver package before installing the newest one.

Date: 10/10/2022

New in this release#

  • Support added for EC2 Trn1 instance types and ML training workloads.

  • Added missing GPL2 LICENSE file.

  • Changed package name to aws-neuronx-dkms (was previously minus the ‘x’).

  • Security Update – blocked user space access to control registers and DMA control queues intended to be used by the Neuron Driver only.

  • Added support for DMA Aborts to avoid hangs.

  • Added support for TPB Reset.

  • Added sysfs entries for triggering resets and reading core counts.

  • Added write combining on BAR4.

  • Added PCI Device ID update as part of install.

  • Added handling for known duplicate device id error.

Bug Fixes#

  • Fixed a null pointer free scenario.

  • Fixed installation issue related to install without internet connectivity.

Neuron Driver release [2.3.26.0]#

Date: 08/02/2022

Bug Fixes#

  • Security Update: Blocked user space access to control registers and DMA control queues intended to be used by the Neuron Driver only. Recommending upgrade to all customers.

Neuron Driver release [2.3.11.0]#

Date: 05/27/2022

New in this release#

  • This driver is required to support future releases of the Neuron Runtime. Included in the release is both a bug fix to avoid a kernel crash scenario and an increased compatibility range to ensure compatibility with future versions of Neuron Runtime.

Bug Fixes#

  • Correction to huge aligned memory allocation/freeing logic that was previously susceptible to crashes in the kernel. The crash would bring down the OS. Recommending upgrade to all customers.

Neuron Driver release [2.3.3.0]#

Date: 04/29/2022

New in this release#

  • Minor performance improvements on inference and loading of models.

Bug Fixes#

  • Reduced Host CPU usage when reading hw_counters metric from neuron-monitor

  • Minor bug fixes.

Neuron Driver release [2.2.14.0]#

Date: 03/25/2022

New in this release#

  • Minor updates

Neuron Driver release [2.2.13.0]#

Date: 01/20/2022

New in this release#

  • Minor updates

Neuron Driver release [2.2.6.0]#

Date: 10/27/2021

New in this release#

  • Memory improvements made to ensure all allocations are made with 4K alignments.

Resolved issues#

  • No longer delays 1s per NeuronDevice when closing Neuron Tools applications.

  • Fixes a Ubuntu 20 build issue

Neuron Driver release [2.1]#

  • Support is added for Neuron Runtime 2.x (libnrt.so).

  • Support for previous releases of Neuron Runtime 1.x is continued with Driver 2.x releases.

This document is relevant for: Inf1, Trn1