Increase mimimum number of warmup runs to 2 (#58801)
Summary:
The JIT will typically need two warmup runs to do profiling and optimization.
This is not the perfect solution but it will substantially reduce the number of surprised people when the docs say torch.utils.benchmark.Timer takes care of warmup.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/58801
Reviewed By: desertfire
Differential Revision: D28644244
Pulled By: robieta
fbshipit-source-id: cc54ed019e882a379d6e4a0c6a01fd5873dd41c3
