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Neuron Driver 2.x 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 [2.3.26.0]

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.