我只是简单地输入了 tf.Tensor Tensorflow 2.0 中给出的代码,这是我的代码:
import tensorflow as tf
print(tf.__version__)
# Build a dataflow graph.
c = tf.constant([[1.0, 2.0], [3.0, 4.0]])
d = tf.constant([[1.0, 1.0], [0.0, 1.0]])
e = tf.matmul(c, d)
# Construct a `Session` to execute the graph.
sess = tf.compat.v1.Session()
# Execute the graph and store the value that `e` represents in `result`.
result = sess.run(e)
但它引发了一个错误:
2.0.0-beta1
2019-07-25 17:06:35.972372: I tensorflow/core/platform/cpu_feature_guard.cc:142] Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2 FMA
Traceback (most recent call last):
File "/Users/yupng/Documents/Dissertation/kmnist/kminst_v1.0.py", line 14, in <module>
result = sess.run(e)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 950, in run
run_metadata_ptr)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1098, in _run
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().
Process finished with exit code 1
我能做些什么来修复这个错误?
最佳答案
TF 2.0 支持急切执行,这意味着您不必显式创建 session 并在其中运行代码。所以最简单的解决方案是:
import tensorflow as tf
print(tf.__version__)
# Build a dataflow graph.
c = tf.constant([[1.0, 2.0], [3.0, 4.0]])
d = tf.constant([[1.0, 1.0], [0.0, 1.0]])
e = tf.matmul(c, d)
print(e)
哪个输出
2.0.0-beta1
tf.Tensor(
[[1. 3.]
[3. 7.]], shape=(2, 2), dtype=float32)
但是,如果您愿意,您可以使用 session :
import tensorflow as tf
print(tf.__version__)
# Construct a `Session` to execute the graph.
with tf.compat.v1.Session() as sess:
# Build a dataflow graph.
c = tf.constant([[1.0, 2.0], [3.0, 4.0]])
d = tf.constant([[1.0, 1.0], [0.0, 1.0]])
e = tf.matmul(c, d)
# Execute the graph and store the value that `e` represents in `result`.
result = sess.run(e)
print(result)
这使
2.0.0-beta1
[[1. 3.]
[3. 7.]]
关于python-3.x - 如何修复 ‘RuntimeError: The Session graph is empty. Add operations to the graph before calling run().”,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/57206247/