Changed from torch.cuda.amp.autocast to torch.amp.autocast

torch.cuda.amp.autocast to be deprecated

references/detection/engine.py

@@ -27,7 +27,7 @@ def train_one_epoch(model, optimizer, data_loader, device, epoch, print_freq, sc
     for images, targets in metric_logger.log_every(data_loader, print_freq, header):
         images = list(image.to(device) for image in images)
         targets = [{k: v.to(device) if isinstance(v, torch.Tensor) else v for k, v in t.items()} for t in targets]
-        with torch.cuda.amp.autocast(enabled=scaler is not None):
+        with torch.amp.autocast("cuda" if torch.cuda.is_available() else "cpu", enabled=scaler is not None):
             loss_dict = model(images, targets)
             losses = sum(loss for loss in loss_dict.values())