We are pleased to announce the release of NxSDK 0.9.8. The installation files are located at /nfs/ncl/releases. Installation steps stay the same as of 0.9.0. Please refer to getting started guides within Startup Materials [also available in nxsdk-apps-0.9.8.tar.gz/docs]

The release is available for all participants who have signed the INRC participation agreement and have access to the INRC Cloud.

New Features/Improvements

General

• NxSDK Support for Pohoiki Springs

• Power Telemetry measurement for Pohoiki Springs

• When using energy probes on Pohoiki Springs, LMT option platform-args must be set to specify the column to probe. This can be set through the command line arguments via LMTOPTIONS=[--platform-args="<relative_column>/<total_columns>/<absolute_column>"] or through board.options. For example LMTOPTIONS=[--platform-args="0/1/0"] , LMTOPTIONS=[--platform-args="0/1/1"], and LMTOPTIONS=[--platform-args="0/1/2"] will probe the leftmost column, middle column and rightmost column, respectively.

• Added support for all python versions by removing the pyc precompilation step during pip packaging

NxNet

• enableDelay attributed in Connection and ConnectionPrototype has been replaced by disableDelay. If disableDelay is set to True, then delay is not used as a synaptic delay but a general purpose variable for learning only.

• Added compiler support for synaptic tag variables to allow specification of initial tag values.

NxSDK Modules

• Spike Input Generator module has been released for the Composable Framework (can be found in the Github repo)

• Spike Input Streamer provides a means to inject spikes into a model at deterministic times while the model is running on Loihi.

NxCore

• A new snip phase EMBEDDED_REMOTE_MGMT allows code to be remotely triggered by pre-emption.

• Upper limit of user channels which can be created has been increased to 1024

Known Issues

• Energy probes for Pohoiki Springs will not be recording temperature. This feature will be removed across all hardware in future as it adds no meaningful insight.

• Static power measuement across Pohoiki Springs boards should be ignored for now.

Major bug fixes for release

• DVS module's addSpikes() function now correctly configures x86 cores to receive spikes from the host instead of expecting a live hardware interface from DAVIS240C.