edgetpu: Failed to load delegate from libedgetpu.so.1 M.2 Accelerator with Dual Edge TPU

Issue Type

Support

Operating System

Linux

Coral Device

M.2 Accelerator with dual Edge TPU

Other Devices

No response

Programming Language

Python 3.9

Relevant Log Output

user@nvr:~/coral/pycoral$ python3 examples/classify_image.py --model test_data/mobilenet_v2_1.0_224_inat_bird_quant_edgetpu.tflite --labels test_data/inat_bird_labels.txt --input test_data/parrot.jpg
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/tflite_runtime/interpreter.py", line 160, in load_delegate
    delegate = Delegate(library, options)
  File "/usr/lib/python3/dist-packages/tflite_runtime/interpreter.py", line 119, in __init__
    raise ValueError(capture.message)
ValueError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/user/coral/pycoral/examples/classify_image.py", line 121, in <module>
    main()
  File "/home/user/coral/pycoral/examples/classify_image.py", line 71, in main
    interpreter = make_interpreter(*args.model.split('@'))
  File "/usr/lib/python3/dist-packages/pycoral/utils/edgetpu.py", line 87, in make_interpreter
    delegates = [load_edgetpu_delegate({'device': device} if device else {})]
  File "/usr/lib/python3/dist-packages/pycoral/utils/edgetpu.py", line 52, in load_edgetpu_delegate
    return tflite.load_delegate(_EDGETPU_SHARED_LIB, options or {})
  File "/usr/lib/python3/dist-packages/tflite_runtime/interpreter.py", line 162, in load_delegate
    raise ValueError('Failed to load delegate from {}\n{}'.format(
ValueError: Failed to load delegate from libedgetpu.so.1

user@nvr:~/coral/pycoral$ ls /dev/apex_0
/dev/apex_0

user@nvr:/root$ lspci -nn | grep 089a
01:00.0 System peripheral [0880]: Global Unichip Corp. Coral Edge TPU [1ac1:089a]

root@nvr:~# dmesg | grep apex
[    3.313709] apex 0000:01:00.0: enabling device (0100 -> 0102)
[    3.314038] apex 0000:01:00.0: Couldn't initialize interrupts: -22
[    8.471106] apex 0000:01:00.0: Apex performance not throttled due to temperature

root@nvr:~# dmesg | grep 089a
[    0.315384] pci 0000:01:00.0: [1ac1:089a] type 00 class 0x0000ff

root@nvr:~# id user
uid=1000(user) gid=1000(user) groups=1000(user),24(cdrom),25(floppy),27(sudo),29(audio),30(dip),44(video),46(plugdev),107(render),109(netdev),1001(apex)

root@nvr:~# ls -l /dev/apex_0 
crw-rw---- 1 root apex 120, 0 Jun 13 19:28 /dev/apex_0