Checkpoint adding "version_" at the start of the logger name
To reproduce :
logger = pl.loggers.TensorBoardLogger(
                save_dir='.',
                version='my_name'
                name='lightning_logs'
            )

trainer = pl.Trainer(logger=logger, log_gpu_memory='all', max_epochs=10)
Giving as a result:

/lightning_logs/my_name: Where is saved the logs
/lightning_logs/version_my_name : Where is saved the checkpoints

Possible Explanation:
It seems like the checkpoint saving add "version_" to the start of the name even if the name have been given as a parameter :

  
    
      pytorch-lightning/pytorch_lightning/trainer/callback_config.py
    
    
        Lines 52 to 57
      in
      3e8f2d9
    
  
  
    

        
          
           ckpt_path = os.path.join( 
        

        
          
               save_dir, 
        

        
          
               self.logger.name, 
        

        
          
               f'version_{self.logger.version}', 
        

        
          
               "checkpoints" 
        

        
          
           ) 
        
    
  


Even if in the Tensorboard Logger if the name is provided there is no "version_" prefix :

  
    
      pytorch-lightning/pytorch_lightning/loggers/tensorboard.py
    
    
         Line 81
      in
      8b82ce0
    
  
  
    

        
          
           version = self.version if isinstance(self.version, str) else f"version_{self.version}"