tensorflow-gpu conda 环境不适用于 ubuntu-20.04

Question

我按照使用 conda 在 ubuntu 20.04 上安装 tensorflow 的说明进行操作：Installing Tensorflow using Anaconda

conda create --name tf tensorflow-gpu

conda 环境已成功创建。但是 tensorflow 和 gpu 不起作用：

 !18
python3 image_classification_efficientnet_fine_tuning.py
2021-04-25 13:08:58.235320: W tensorflow/stream_executor/platform/default/dso_loader.cc:60] Could not load dynamic library 'libcudart.so.11.0'; dlerror: libcudart.so.11.0: cannot open shared object file: No such file or directory
2021-04-25 13:08:58.235341: I tensorflow/stream_executor/cuda/cudart_stub.cc:29] Ignore above cudart dlerror if you do not have a GPU set up on your machine.
Traceback (most recent call last):
  File "image_classification_efficientnet_fine_tuning.py", line 137, in <module>
    import tensorflow as tf
  File "/home/steve/.local/lib/python3.8/site-packages/tensorflow/__init__.py", line 436, in <module>
    _ll.load_library(_main_dir)
  File "/home/steve/.local/lib/python3.8/site-packages/tensorflow/python/framework/load_library.py", line 153, in load_library
    py_tf.TF_LoadLibrary(lib)
tensorflow.python.framework.errors_impl.NotFoundError: /home/steve/anaconda3/envs/tf/lib/python3.8/site-packages/tensorflow/core/kernels/libtfkernel_sobol_op.so: undefined symbol: _ZNK10tensorflow8OpKernel11TraceStringB5cxx11ERKNS_15OpKernelContextEb

使用 cuda 在 ubuntu-20.04 上安装 Tensorflow 非常困难。