× We want your feedback about Neuron SDK! Let us know by taking the Neuron survey

Neuron Tools 2.x Release Notes

This documents lists the release notes for AWS Neuron tools. Neuron tools are used for debugging, profiling and gathering inferentia system information.

Neuron Tools release []

Date: 04/29/2022

  • Minor updates

Neuron Tools release [2.0.790.0]

Date: 03/25/2022

  • neuron-monitor: fixed a floating point error when calculating CPU utilization.

Neuron Tools release [2.0.623.0]

Date: 01/20/2022

New in the release

  • neuron-top - Added “all” tab that aggregates all aggregate all running Neuron processes into a single view.

  • neuron-top - Improved startup time to approximately 1.5 seconds in most cases.

  • neuron-ls - Removed header message about updating tools from neuron-ls output

Bug fixes

  • neuron-top - Reduced single CPU core usage down to 0.7% from 80% on inf1.xlarge when running neuron-top by switching to an event-driven approach for screen updates.

Neuron Tools release [2.0.494.0]

Date: 12/27/2021

  • Security related updates related to log4j vulnerabilities.

Neuron Tools release [2.0.327.0]

Date: 11/05/2021

  • Updated Neuron Runtime (which is integrated within this package) to libnrt to fix a container issue that was preventing the use of containers when /dev/neuron0 was not present. See details here Neuron Runtime 2.x Release Notes.

Neuron Tools release []

Date: 10/27/2021

New in this release

  • Tools now support applications built with Neuron Runtime 2.x (libnrt.so).


  • Updates have been made to neuron-ls and neuron-top to significantly improve the interface and utility of information provided.

  • Expands neuron-monitor to include additional information when used to monitor latest Frameworks released with Neuron 1.16.0.

    neuron_hardware_info Contains basic information about the Neuron hardware.

    "neuron_hardware_info": {
       "neuron_device_count": 16,
       "neuroncore_per_device_count": 4,
       "error": ""
    • neuron_device_count : number of available Neuron Devices

    • neuroncore_per_device_count : number of NeuronCores present on each Neuron Device

    • error : will contain an error string if any occurred when getting this information (usually due to the Neuron Driver not being installed or not running).

  • neuron-cli entering maintenance mode as it’s use is no longer relevant when using ML Frameworks with an integrated Neuron Runtime (libnrt.so). see 10/27/2021 - Neuron support for Apache MXNet 1.5 enters maintenance mode for more information.

  • For more information visit Neuron Tools