tensorflow.python.framework.errors_impl.NotFoundError: Could not find valid device for node.

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0. Preface

Test code error, small note

1. Text

Test the following code,

import os

os.environ['TF_CPP_MIN_LOG_LEVEL'] = '2'

import tensorflow as tf
import numpy as np

tensor = tf.constant(np.arange(12).reshape((3, 4,1))) 
print(tensor)

temp = tf.sigmoid(tensor)
print(temp)

Error:

tensorflow.python.framework.errors_impl.NotFoundError: Could not find valid device for node.

Reason: tensor is a floating-point type to perform tf.sigmoid operations

---

after fixing:

import os

os.environ['TF_CPP_MIN_LOG_LEVEL'] = '2'

import tensorflow as tf
import numpy as np

tensor = tf.constant(np.arange(12).reshape((3, 4, 1)), dtype=tf.float32)
print(tensor)

temp = tf.sigmoid(tensor)
print(temp)

references

no