title: Does TensorFlow view all CPUs of one machine as ONE device?
body: <p>From the experiments I run, it seems like TensorFlow uses automatically all CPUs on one machine. Furthermore, it seems like TensorFlow refers to all CPUs as /cpu:0. </p>
  
  <p>Am I right, that only the different GPUs of one machine get indexed and viewed as separate devices, but all the CPUs on one machine get viewed as a single device? </p>
  
  <p>Is there any way that a machine can have multiple CPUs viewing it from TensorFlows perspective? </p>