How to set specific gpu in tensorflow?

Question

I want to specify the gpu to run my process. And I set it as follows:

import tensorflow as tf
with tf.device(\'/gpu:0\'):
    a = tf.constant(3.0)
with tf.Se         


        

Answer 1

I believe that you need to set CUDA_VISIBLE_DEVICES=1. Or which ever GPU you want to use. If you make only one GPU visible, you will refer to it as /gpu:0 in tensorflow regardless of what you set the environment variable to.

More info on that environment variable: https://devblogs.nvidia.com/cuda-pro-tip-control-gpu-visibility-cuda_visible_devices/