Answers for "test gpu on tensorflow 1.15"

tensorflow gpu test

# As it's written in Tensorflow documentatoin: 

import tensorflow as tf
print("Num GPUs Available: ", len(tf.config.experimental.list_physical_devices('GPU')))

tensorflow gpu test

tf.test.is_gpu_available(
  cuda_only=False, min_cuda_compute_capability=None
)

check gpu in tensorflow

# For tensorflow 2:
print("Num GPUs Available: ", len(tf.config.list_physical_devices('GPU')))

# For tensorflow 1:
sess = tf.Session(config=tf.ConfigProto(log_device_placement=True))