How do you know when warmup is finished?<p>Warmup&#x27;s a tricky issue, see this brand new paper:
<a href="http:&#x2F;&#x2F;arxiv.org&#x2F;abs&#x2F;1602.00602" rel="nofollow">http:&#x2F;&#x2F;arxiv.org&#x2F;abs&#x2F;1602.00602</a>