comaniac commented on a change in pull request #7975:
URL: https://github.com/apache/tvm/pull/7975#discussion_r626970274



##########
File path: python/tvm/relay/backend/compile_engine.py
##########
@@ -253,7 +255,16 @@ def select_implementation(op, attrs, inputs, out_type, 
target, use_autotvm=True)
             and msg not in autotvm.task.DispatchContext.warning_messages
         ):
             autotvm.task.DispatchContext.warning_messages.add(msg)
-            autotvm_logger.warning(msg)
+            if autotvm_logger.level == logging.DEBUG:  # only print if in 
debug mode
+                autotvm_logger.warning(msg)

Review comment:
       Can this just be `autotvm_logger.debug(msg)` so that we can simplify 
this logic to
   ```
   if _first_warning:
     # print the first time warning.
   autotvm_logger.debug(msg)
   ```
   I believe it's fine to have the first time warning in both cases. Advance 
developers won't be mad to see one more warning.

##########
File path: python/tvm/relay/backend/compile_engine.py
##########
@@ -253,7 +255,16 @@ def select_implementation(op, attrs, inputs, out_type, 
target, use_autotvm=True)
             and msg not in autotvm.task.DispatchContext.warning_messages
         ):
             autotvm.task.DispatchContext.warning_messages.add(msg)
-            autotvm_logger.warning(msg)
+            if autotvm_logger.level == logging.DEBUG:  # only print if in 
debug mode
+                autotvm_logger.warning(msg)
+            else:
+                global _first_warning
+                if _first_warning == True:

Review comment:
       ```suggestion
                   if _first_warning:
   ```




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