[pl]: update to pl 1.3+

Author: ruotianluo

captioning/utils/misc.py

@@ -157,7 +157,7 @@ def length_average(length, logprobs, alpha=0.):
     return logprobs / length
 
 
-class NoamOpt(object):
+class NoamOpt(torch.optim.Optimizer):
     "Optim wrapper that implements rate."
     def __init__(self, model_size, factor, warmup, optimizer):
         self.optimizer = optimizer
@@ -167,14 +167,14 @@ def __init__(self, model_size, factor, warmup, optimizer):
         self.model_size = model_size
         self._rate = 0
 
-    def step(self):
+    def step(self, *args, **kwargs):
         "Update parameters and rate"
         self._step += 1
         rate = self.rate()
         for p in self.optimizer.param_groups:
             p['lr'] = rate
         self._rate = rate
-        self.optimizer.step()
+        self.optimizer.step(*args, **kwargs)
 
     def rate(self, step = None):
         "Implement `lrate` above"
@@ -198,16 +198,16 @@ def load_state_dict(self, state_dict):
             del state_dict['_step']
         self.optimizer.load_state_dict(state_dict)
 
-class ReduceLROnPlateau(object):
+class ReduceLROnPlateau(torch.optim.Optimizer):
     "Optim wrapper that implements rate."
     def __init__(self, optimizer, mode='min', factor=0.1, patience=10, verbose=False, threshold=0.0001, threshold_mode='rel', cooldown=0, min_lr=0, eps=1e-08):
         self.scheduler = optim.lr_scheduler.ReduceLROnPlateau(optimizer, mode, factor, patience, verbose, threshold, threshold_mode, cooldown, min_lr, eps)
         self.optimizer = optimizer
         self.current_lr = get_lr(optimizer)
 
-    def step(self):
+    def step(self, *args, **kwargs):
         "Update parameters and rate"
-        self.optimizer.step()
+        self.optimizer.step(*args, **kwargs)
 
     def scheduler_step(self, val):
         self.scheduler.step(val)

tools/train_pl.py

@@ -104,6 +104,7 @@ def training_step(self, data, batch_idx):
             loss = model_out.pop('loss')
             loss = torch.topk(loss, k=int(loss.shape[0] * (1-self.opt.drop_worst_rate)), largest=False)[0].mean()
 
+        # Prepare for logging info
         data_time = self.trainer.profiler.recorded_durations["get_train_batch"][-1]
         data_time = torch.tensor(data_time)
 
@@ -117,13 +118,11 @@ def training_step(self, data, batch_idx):
         logger_logs['training_loss'] = loss
         logger_logs['data_time'] = data_time
 
-        output = {
-            'loss': loss,
-            'log': logger_logs,
-            'progress_bar': {'data_time': data_time}
-        }
+        for k, v in logger_logs.items():
+            self.log(k, v, on_epoch=(k=='training_loss'), prog_bar=(k=='data_time'))
+        # logged
 
-        return output
+        return loss
 
     def validation_step(self, data, batch_idx):
         model = self.model
@@ -202,7 +201,7 @@ def validation_step(self, data, batch_idx):
                                     fc_feats, att_feats, att_masks, data], eval_kwargs)
 
         output = {
-            'val_loss': loss,
+            'loss': loss,
             'predictions': predictions,
             'n_predictions': n_predictions,
         }
@@ -211,15 +210,15 @@ def validation_step(self, data, batch_idx):
     def test_step(self, *args, **kwargs):
         return self.validation_step(*args, **kwargs)
 
-    def validation_epoch_end(self, outputs, split='val'):
+    def split_epoch_end(self, outputs, split='val'):
         outputs = d2comm.gather(outputs)
         # master node
         if d2comm.is_main_process():
             assert self.trainer.node_rank == 0 and self.trainer.local_rank == 0
             outputs = sum(outputs, [])
 
             opt = self.opt
-            val_loss_mean = sum([_['val_loss']
+            loss_mean = sum([_['loss'].item()
                                  for _ in outputs]) / len(outputs)
 
             predictions = sum([_['predictions'] for _ in outputs], [])
@@ -247,13 +246,13 @@ def validation_epoch_end(self, outputs, split='val'):
                 if 'CIDEr' in lang_stats:
                     optimizer.scheduler_step(-lang_stats['CIDEr'])
                 else:
-                    optimizer.scheduler_step(val_loss_mean)
+                    optimizer.scheduler_step(loss_mean)
 
             out = {
-                'val_loss': val_loss_mean
+                'loss': loss_mean
             }
             out.update(lang_stats)
-            out['to_monitor'] = lang_stats['CIDEr'] if lang_stats is not None else -val_loss_mean
+            out['to_monitor'] = lang_stats['CIDEr'] if lang_stats is not None else -loss_mean
         else:
             out = {}
 
@@ -263,23 +262,25 @@ def validation_epoch_end(self, outputs, split='val'):
         # must all be tensors
         out = {k: torch.tensor(v) if not torch.is_tensor(
             v) else v for k, v in out.items()}
-        return {
-            'progress_bar': {'val_loss': out['val_loss']},
-            'log': out,
-        }
+
+        return out
+
+    def validation_epoch_end(self, outputs):
+        out = self.split_epoch_end(outputs, 'val')
+        out['val_loss'] = out.pop('loss')
+        for k,v in out.items():
+            self.log(k, v)
+        return out
 
     def test_epoch_end(self, outputs):
-        out = self.validation_epoch_end(outputs, 'test')
-        out['progress_bar'] = {
-            'test_loss': out['progress_bar']['val_loss']
-        }
-        out['log']['test_loss'] = out['log']['val_loss']
-        del out['log']['val_loss']
-        del out['log']['to_monitor']
-        out['log'] = {'test_'+k if 'test' not in k else k:v \
-                      for k,v in out['log'].items()}
+        out = self.split_epoch_end(outputs, 'test')
+        out['test_loss'] = out.pop('loss')
+        out = {'test_'+k if 'test' not in k else k: v
+               for k, v in out.items()}
+        for k,v in out.items():
+            self.log(k, v)
         return out
-        
+ 
     def configure_optimizers(self):
         opt = self.opt
         model = self.model
@@ -309,11 +310,11 @@ def optimizer_step(self, epoch, batch_idx, optimizer,
         super().optimizer_step(epoch, batch_idx, optimizer,
                                optimizer_idx, *args, **kwargs)
 
-    def state_dict(self):
+    def state_dict(self, *args, **kwargs):
         """
         Save the model state dict as well as opt and vocab
         """
-        state_dict = self.model.state_dict()
+        state_dict = self.model.state_dict(*args, **kwargs)
         device = next(iter(state_dict.values())).device
         assert '_vocab' not in state_dict and '_opt' not in state_dict, 'Just in case'
         state_dict.update({
@@ -345,10 +346,16 @@ def load_state_dict(self, state_dict=None, strict=True):
             raise KeyError
         self.model.load_state_dict(state_dict, strict)
 
+    def get_progress_bar_dict(self):
+        # don't show the version number
+        items = super().get_progress_bar_dict()
+        items.pop("v_num", None)
+        return items
+
 
 class OnEpochStartCallback(pl.Callback):
 
-    def on_epoch_start(self, trainer, pl_module):
+    def on_train_epoch_start(self, trainer, pl_module):
         # Update lr/training stage/scheduled sampling prob etc.
         opt = pl_module.opt
         model = pl_module.model
@@ -402,21 +409,32 @@ class ModelCheckpoint(pl.callbacks.ModelCheckpoint):
 
     def on_keyboard_interrupt(self, trainer, pl_module):
         # Save model when keyboard interrupt
-        filepath = os.path.join(self.dirpath, self.prefix + 'interrupt.ckpt')
-        self._save_model(filepath)
+        filepath = os.path.join(self.dirpath, pl_module.opt.id+'_interrupt.ckpt')
+        self._save_model(trainer, filepath=filepath)
 
 
 opt = opts.parse_opt()
 
 checkpoint_callback = ModelCheckpoint(
-    filepath=opt.checkpoint_path,
+    dirpath=opt.checkpoint_path,
+    filename=opt.id+'_{epoch}-{step}',
     save_last=True,
     save_top_k=1,
     verbose=True,
     monitor='to_monitor',
     mode='max',
-    prefix=opt.id+'_',
 )
+checkpoint_callback.CHECKPOINT_NAME_LAST = opt.id+"_last"
+
+
+tb_logger = pl.loggers.TensorBoardLogger(opt.checkpoint_path +
+                                         '/lightning_logs/',
+                                         name='',
+                                         version=0)
+wandb_logger = pl.loggers.WandbLogger(name=opt.id,
+                                      id=opt.id,
+                                      project='captioning',
+                                      log_model=True)
 
 print("""
 val_image_use,
@@ -438,29 +456,32 @@ def on_keyboard_interrupt(self, trainer, pl_module):
 lit = LitModel(opt)
 # warning grad_clip_mode is ignored.
 trainer = pl.Trainer(
+    logger=[tb_logger, wandb_logger],
     callbacks=[
         OnEpochStartCallback(),
-        pl.callbacks.lr_logger.LearningRateLogger()
+        pl.callbacks.LearningRateMonitor(),
+        checkpoint_callback,
     ],
     default_root_dir=opt.checkpoint_path,
     resume_from_checkpoint=resume_from,
-    distributed_backend='ddp',
+    accelerator='ddp',
     check_val_every_n_epoch=1,
     max_epochs=opt.max_epochs,
+    gradient_clip_algorithm=opt.grad_clip_mode,
     gradient_clip_val=opt.grad_clip_value,
     gpus=torch.cuda.device_count(),
-    checkpoint_callback=checkpoint_callback,
     log_gpu_memory='min_max',
-    log_save_interval=opt.losses_log_every,
-    profiler=True,
-    row_log_interval=10,  # what is it?
+    log_every_n_steps=opt.losses_log_every,
+    profiler='simple',
     num_sanity_val_steps=0,
-    # limit_train_batches=500,
+    # limit_train_batches=100,
     # progress_bar_refresh_rate=0,
     # fast_dev_run=True,
 )
 
 if os.getenv('EVALUATE', '0') == '1':
+    lit.load_state_dict(
+        torch.load(resume_from, map_location='cpu')['state_dict'], strict=False)
     trainer.test(lit)
 else:
     trainer.fit(lit)