FAQ

Q & A

Q: How do I install a specific version of the AidLite inference SDK for QNN?

A: AidLite SDK provides multiple versions for different QNN releases. Developers can install a specific version using the following commands (taking QNN 2.16 as an example):

sudo aid-pkg update
# Install AidLite QNN2.16 version
sudo aid-pkg install aidlite-qnn216

Q: Which version of QNN is installed with the command aid-pkg install aidlite?

A: Running the command aid-pkg install aidlite will install the latest version of QNN by default.

Q: Can multiple versions of AidLite coexist? How can I check which versions are installed?

A: Yes, AidLite supports multiple versions to coexist.

• You can install multiple versions of AidLite using the command aid-pkg install aidlite-{QNN-Version}
• You can list all installed versions of AidLite using the command aid-pkg -l

Q: Does a QNN model downloaded from Model Farm require the exact matching version of AidLite for inference?

A: In general, QNN versions are backward compatible. For example, you can use AidLite-QNN2.31 to run inference on a model built for QNN2.16. However, if inference issues occur, it is recommended to use the matching version for compatibility.

Q: After installing multiple versions of the AidLite SDK for QNN, how can I specify which QNN version to use for inference?

A: You can specify the QNN version through the AidLite SDK interface. Below is an example using the Python API:

Specifying QNN2.16 version

config.framework_type = aidlite.FrameworkType.TYPE_QNN216

No version specified

# This means the latest installed version will be used for inference
config.framework_type = aidlite.FrameworkType.TYPE_QNN

For more details, please refer to:

• Python API
• C++ API