pytorch

5757d031 - Add logging for _MinimizerBase

Add logging for _MinimizerBase Summary: Add logging so we know which nodes are currently being visited Test Plan: lint & SC tests Reviewed By: 842974287 Differential Revision: D30509865 fbshipit-source-id: 09e77e44c97c825242e0b24f90463b50f3ca19c6