Improve warning message on mismatched variables (#901)

README.md

@@ -13,6 +13,7 @@ It's Yet Another TF high-level API, with __speed__, __readability__ and __flexib
 1. Focus on __training speed__.
 	+ Speed comes for free with Tensorpack -- it uses TensorFlow in the __efficient way__ with no extra overhead.
 	  On common CNNs, it runs training [1.2~5x faster](https://github.com/tensorpack/benchmarks/tree/master/other-wrappers) than the equivalent Keras code.
+		Your training can probably gets faster if written with Tensorpack.
 
 	+ Data-parallel multi-GPU/distributed training strategy is off-the-shelf to use.
       It scales as well as Google's [official benchmark](https://www.tensorflow.org/performance/benchmarks).

tensorpack/tfutils/sessinit.py

@@ -140,9 +140,9 @@ class SaverRestore(SessionInit):
                     func(reader, name, v)
                     chkpt_vars_used.add(name)
                 else:
-                    vname = v.op.name
-                    if not is_training_name(vname):
-                        mismatch.add(vname)
+                    # use tensor name (instead of op name) for logging, to be consistent with the reverse case
+                    if not is_training_name(v.name):
+                        mismatch.add(v.name)
         mismatch.log()
         mismatch = MismatchLogger('checkpoint', 'graph')
         if len(chkpt_vars_used) < len(chkpt_vars):