How can I use multi chip using python code

General
1

I am trying to run the super resolution code using python code

From the example code of SR
devices = Device.scan()
with VDevice(device_ids=selected_devices) as target:

Target has default value, using only one hailo chip

Should I have to chage the pyhailort.py
class VDevice: create_params() part?

2

Hey @hwan136

Welcome to the Hailo Community!

The key is using Hailo’s Virtual Device (VDevice) API to work with multiple physical chips without modifying pyhailort.py. Here’s how to implement it:

Main Steps:

  1. Scan for available Hailo devices using Device.scan()
  2. Configure VDevice with multiple device IDs
  3. Use VDevice.create_params() for advanced control (optional)

Example Implementation:

from hailo_platform import Device, VDevice, ConfigureParams, HailoStreamInterface

# Scan and select devices
devices = Device.scan()
selected_devices = [devices[0], devices[1]]  # Use first two devices

# Create virtual device and run inference
with VDevice(device_ids=selected_devices) as target:
    hef = HEF("your_model.hef")
    configure_params = ConfigureParams.create_from_hef(hef, interface=HailoStreamInterface.PCIe)
    network_group = target.configure(hef, configure_params)[0]
    
    with network_group.activate():
        # Your inference code here

This approach allows for efficient workload distribution across multiple Hailo chips while maintaining a simple interface for inference operations.

3

Thank you for your help, but I cannot solve this problem

from pyhailort.py

class VDevice
@staticmethod
def create_params():
with ExceptionWrapper():
return _pyhailort.VDeviceParams.default()

how can I chage VDevice into non static mode?