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				@@ -255,11 +255,14 @@ class Main(object): 
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				     def dataset_train_loop(self, epoch): 
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				         logger.info("Epoch: {}, Running Dataset Begin.".format(epoch)) 
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				+         
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				         fetch_info = [ 
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				             "Epoch {} Var {}".format(epoch, var_name) 
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				             for var_name in self.metrics 
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				         ] 
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				+        logger.info("Metrics keys: {}".format(self.metrics.keys())) 
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				         fetch_vars = [var for _, var in self.metrics.items()] 
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				+        logger.info("Fetch vars: {}".format(fetch_vars)) 
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				         print_step = int(config.get("runner.print_interval")) 
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				         debug = config.get("runner.dataset_debug", False) 
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				@@ -272,7 +275,7 @@ class Main(object): 
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				                 "dump_fields": config.get("runner.dump_fields") 
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				             }) 
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				         logger.info(paddle.static.default_main_program()._fleet_opt) 
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				-        logger.info("Epoch: {}, debug debug debug debug.".format(epoch)) 
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				+         
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				         self.exe.train_from_dataset( 
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				             program=paddle.static.default_main_program(), 
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				             dataset=self.reader, 
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				@@ -280,7 +283,7 @@ class Main(object): 
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				             fetch_info=fetch_info, 
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				             print_period=print_step, 
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				             debug=debug) 
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				-        logger.info("Epoch: {}, debug1 debug1 debug1 debug1.".format(epoch)) 
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				+         
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				     def heter_train_loop(self, epoch): 
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				         logger.info( 
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