Do I need 2 hailo devices if I use 2 hef models?

Hi there! I’m wondering if it means that I need two hailo devices if I use the yolo hef and the reid hef.

Hi @js12459743,
You can execute multiple models with a single Hailo-8/8L device. The model switching operation can be performed in a manual or automatic way, using HailoRT scheduler.
Please give a look at the HailoRT documentation for further details.

HailoRT C++ tutorials are available for this purpose.

A few Gstreamer applications from TAPPAS (for Hailo-8) are based on pipelines running multiple models multiple models:

More examples are available in the Hailo Application Code Examples repository

@js12459743
We prepared two guides on this topic when using DeGirum PySDK.
Running multiple models independently
Face Detection + Gender Classification: Pipelining two models on Hailo devices
Please check if you find them useful. If you have a different use case, please let us know and we can prepare a code example.