可以将tf.Session()更改为：tf.compat.v1.Session()
AttributeError: module 'tensorflow' has no attribute 'global_variables_initialize
tf.compat.v1.global_variables_initializer
raise RuntimeError('The Session graph is empty. Add operations to the '
RuntimeError: The Session graph is empty. Add operations to the graph before calling run().
问题产生的原因：无法执行sess.run()的原因是tensorflow版本不同导致的，tensorflow版本2.0无法兼容版本1.0.
解决办法：
tf.compat.v1.disable_eager_execution()
2022-02-22 21:01:53.340663: I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:1017] ARM64 does not support NUMA - returning NUMA node zero
2022-02-22 21:01:53.999918: I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:1017] ARM64 does not support NUMA - returning NUMA node zero
2022-02-22 21:01:54.000336: I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:1017] ARM64 does not support NUMA - returning NUMA node zero
2022-02-22 21:01:59.419527: I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:1017] ARM64 does not support NUMA - returning NUMA node zero
2022-02-22 21:01:59.420159: I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:1017] ARM64 does not support NUMA - returning NUMA node zero
2022-02-22 21:01:59.420582: I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:1017] ARM64 does not support NUMA - returning NUMA node zero
2022-02-22 21:01:59.420955: I tensorflow/core/common_runtime/gpu/gpu_device.cc:1510] Created device /job:localhost/replica:0/task:0/device:GPU:0 with 38 MB memory: -> device: 0, name: NVIDIA Teg1, pci bus id: 0000:00:00.0, compute capability: 5.3
2022-02-22 21:01:59.487169: I tensorflow/core/common_runtime/direct_session.cc:361] Device mapping:
/job:localhost/replica:0/task:0/device:GPU:0 -> device: 0, name: NVIDIA Tegra X1, pci bus id: 0000:00:00.0, compute capability: 5.3
add: (AddV2): /job:localhost/replica:0/task:0/device:GPU:0
2022-02-22 21:01:59.536583: I tensorflow/core/common_runtime/placer.cc:114] add: (AddV2): /job:localhost/replica:0/task:0/device:GPU:0
init: (NoOp): /job:localhost/replica:0/task:0/device:GPU:0
2022-02-22 21:01:59.537008: I tensorflow/core/common_runtime/placer.cc:114] init: (NoOp): /job:localhost/replica:0/task:0/device:GPU:0
a: (Const): /job:localhost/replica:0/task:0/device:CPU:0
2022-02-22 21:01:59.537326: I tensorflow/core/common_runtime/placer.cc:114] a: (Const): /job:localhost/replica:0/task:0/device:CPU:0
b: (Const): /job:localhost/replica:0/task:0/device:CPU:0
2022-02-22 21:01:59.537616: I tensorflow/core/common_runtime/placer.cc:114] b: (Const): /job:localhost/replica:0/task:0/device:CPU:0
[2. 4. 6.]
