rm codes for compatibility with old version

ppcls/data/__init__.py

@@ -221,15 +221,6 @@ class DataIterator(object):
 
 
 def build_dataloader(config, mode):
-    if "class_num" in config["Global"]:
-        global_class_num = config["Global"]["class_num"]
-        if "class_num" not in config["Arch"]:
-            config["Arch"]["class_num"] = global_class_num
-            msg = f"The Global.class_num will be deprecated. Please use Arch.class_num instead. Arch.class_num has been set to {global_class_num}."
-        else:
-            msg = "The Global.class_num will be deprecated. Please use Arch.class_num instead. The Global.class_num has been ignored."
-        logger.warning(msg)
-
     class_num = config["Arch"].get("class_num", None)
     config["DataLoader"].update({"class_num": class_num})
     config["DataLoader"].update({"epochs": config["Global"]["epochs"]})

ppcls/engine/engine.py

@@ -412,28 +412,13 @@ class Engine(object):
                 self.config["AMP"]["use_fp16_test"] = True
                 self.amp_eval = True
 
-            # TODO(gaotingquan): to compatible with different versions of Paddle
             paddle_version = paddle.__version__[:3]
             # paddle version < 2.3.0 and not develop
-            if paddle_version not in ["2.3", "0.0"]:
-                if self.mode == "train":
-                    self.model, self.optimizer = paddle.amp.decorate(
-                        models=self.model,
-                        optimizers=self.optimizer,
-                        level=self.amp_level,
-                        save_dtype='float32')
-                elif self.amp_eval:
-                    if self.amp_level == "O2":
-                        msg = "The PaddlePaddle that installed not support FP16 evaluation in AMP O2. Please use PaddlePaddle version >= 2.3.0. Use FP32 evaluation instead and please notice the Eval Dataset output_fp16 should be 'False'."
-                        logger.warning(msg)
-                        self.amp_eval = False
-                    else:
-                        self.model, self.optimizer = paddle.amp.decorate(
-                            models=self.model,
-                            level=self.amp_level,
-                            save_dtype='float32')
-            # paddle version >= 2.3.0 or develop
-            else:
+            if paddle_version not in ["2.3", "2.4", "0.0"]:
+                msg = "When using AMP, PaddleClas release/2.6 and later version only support PaddlePaddle version >= 2.3.0."
+                logger.error(msg)
+                raise Exception(msg)
+
             if self.mode == "train" or self.amp_eval:
                 self.model = paddle.amp.decorate(
                     models=self.model,

ppcls/loss/__init__.py

@@ -4,7 +4,7 @@ import paddle
 import paddle.nn as nn
 from ppcls.utils import logger
 
-from .celoss import CELoss, MixCELoss
+from .celoss import CELoss
 from .googlenetloss import GoogLeNetLoss
 from .centerloss import CenterLoss
 from .contrasiveloss import ContrastiveLoss

ppcls/loss/celoss.py

@@ -66,10 +66,3 @@ class CELoss(nn.Layer):
                 soft_label=soft_label,
                 reduction=self.reduction)
         return {"CELoss": loss}
-
-
-class MixCELoss(object):
-    def __init__(self, *args, **kwargs):
-        msg = "\"MixCELos\" is deprecated, please use \"CELoss\" instead."
-        logger.error(DeprecationWarning(msg))
-        raise DeprecationWarning(msg)