Ok. I did a clean build now with CUDA 11.3, cuDNN 8.2.0 and /lib/x86_64-linux-gnu/libnccl.so.
The build succeeds, and I have uploaded the output of python setup.py develop here 2 since it’s too large for one or two forum posts. But running test/run_test.sh I get fails immediately:
Running test_import_time ... [2021-05-11 20:29:24.795319]
Executing ['/home//miniconda3/envs/torchdev/bin/python', 'test_import_time.py'] ... [2021-05-11 20:29:24.795436]
..
----------------------------------------------------------------------
Ran 2 tests in 1.114s

OK
Running test_public_bindings ... [2021-05-11 20:29:26.483024]
Executing ['/home//miniconda3/envs/torchdev/bin/python', 'test_public_bindings.py'] ... [2021-05-11 20:29:26.483127]
.
----------------------------------------------------------------------
Ran 1 test in 0.000s

OK
Running test_type_hints ... [2021-05-11 20:29:27.053734]
Executing ['/home//miniconda3/envs/torchdev/bin/python', 'test_type_hints.py'] ... [2021-05-11 20:29:27.053839]
s
----------------------------------------------------------------------
Ran 1 test in 0.000s

OK (skipped=1)
Running test_autograd ... [2021-05-11 20:29:27.612298]
Executing ['/home//miniconda3/envs/torchdev/bin/python', 'test_autograd.py'] ... [2021-05-11 20:29:27.612348]
*** stack smashing detected ***: terminated
Traceback (most recent call last):
  File "test/run_test.py", line 1169, in <module>
    main()
  File "test/run_test.py", line 1148, in main
    raise RuntimeError(err_message)
RuntimeError: test_autograd failed! Received signal: SIGIOT