python tensorflow-gpu的session中config参数设置

import tensorflow as tf
gpu_device_name = tf.test.gpu_device_name()
print(gpu_device_name)
gpu_options = tf.GPUOptions()
gpu_options.allow_growth = True
config_photo = tf.ConfigProto(allow_soft_placement=True, gpu_options = gpu_options)

with tf.device('/gpu:0'):
    a = tf.constant('10',tf.string,name='a_const')
    b = tf.string_to_number(a,out_type=tf.float64,name='str_2')
    c = tf.to_double(5.0,name='to_double')
    d = tf.add(b, c,name='add')
    sess = tf.InteractiveSession(config=config_photo) #config就是前面配好的config_photo
    print(d.eval())