Python – tensorflow.DeviceSpec.from_string()

TensorFlow是谷歌设计的开源Python库，用于开发机器学习模型和深度学习神经网络。

from_string用于从字符串生成DeviceSpec。

语法: tensorflow.DeviceSpec.from_string( spec )

参数:

• spec :它是一个形式为/job:/replica:/task:/device:CPU: 或/job:/replica:/task:/device:GPU的字符串，所有条目都是可选的。

返回：它返回一个由字符串生成的DeviceSpec对象。

示例 1:

# Importing the library
import tensorflow as tf
  
# Formatting the string
spec = '/job:gfg / replica:1 / task:2'
  
# Initializing Device Specification
device_spec = tf.DeviceSpec.from_string(spec)
  
# Printing the DeviceSpec object
print('Device Spec: ', device_spec)

输出:

Device Spec:  <tensorflow.python.framework.device_spec.DeviceSpecV2 object at 0x7fadb9428168>

示例 2:

# Importing the library
import tensorflow as tf
  
# Formatting the string
spec = '/job:gfg / replica:2 / task:3'
  
# Initializing Device Specification
device_spec = tf.DeviceSpec.from_string(spec)
  
# Printing the DeviceSpec object
print('Device Spec: ', device_spec)

输出:

Device Spec:  <tensorflow.python.framework.device_spec.DeviceSpecV2 object at 0x7fadb9428228>