import os
from tensorflow.python.client import device_lib
os.environ["TF_CPP_MIN_LOG_LEVEL"]="99"if __name__ =="__main__":print(device_lib.list_local_devices())
2.指定CPU或GPU进行计算
#使用CPU进行计算with tf.device("/cpu:0"):
a = tf.constant([1.0,2.0,3.0,4.0,5.0,6.0],shape=[2,3])
b = tf.constant([1.0,2.0,3.0,4.0,5.0,6.0],shape=[3,2])
c = tf.matmul(a,b)#查看计算时硬件的使用情况
sess = tf.Session(config=tf.ConfigProto(log_device_placement=True))print(sess.run(c))