gpu_device_id

int32_t k4abt_tracker_configuration_t::gpu_device_id

Specify the GPU device ID to run the tracker.

The setting is not effective if the processing_mode setting is set to K4ABT_TRACKER_PROCESSING_MODE_CPU.

For K4ABT_TRACKER_PROCESSING_MODE_GPU_CUDA and K4ABT_TRACKER_PROCESSING_MODE_GPU_TENSORRT modes, ID of the graphic card can be retrieved using the CUDA API.

In case when processing_mode is K4ABT_TRACKER_PROCESSING_MODE_GPU_DIRECTML, the device ID corresponds to the enumeration order of hardware adapters as given by IDXGIFactory::EnumAdapters.

A device_id of 0 always corresponds to the default adapter, which is typically the primary display GPU installed on the system.

More information can be found in the ONNX Runtime Documentation.