title: How to "reset" tensorboard data after killing tensorflow instance
body: <p>I'm testing different hyperparameters for a cnn model I built, but I'm having a small annoyance when viewing the summaries in Tensorboard. The problem seems to be that the data is just "added" in consecutive runs, so the functions result in a weird superposition unless I see the information as "relative" instead of "by step". See here:</p>
  
  <p><a href="https://i.stack.imgur.com/hZDiS.png" rel="noreferrer"><img src="https://i.stack.imgur.com/hZDiS.png" alt="X Type: Step"></a></p>
  
  <p><a href="https://i.stack.imgur.com/kef2k.png" rel="noreferrer"><img src="https://i.stack.imgur.com/kef2k.png" alt="X Type: Relative"></a></p>
  
  <p>I've tried killing tensorboard's process and erasing the log files, but it seems it is not enough.</p>
  
  <p><strong>So the question is, how do I reset this information?</strong></p>
  
  <p>Thanks!!</p>