fix fp16 config for dyg (#1052)

ppcls/configs/ImageNet/ResNet/ResNet50_fp16.yaml

@@ -27,6 +27,7 @@ AMP:
 Arch:
   name: ResNet50
   class_num: 1000
+  input_image_channel: *image_channel
  
 # loss function config for traing/eval process
 Loss:

ppcls/configs/ImageNet/SENet/SE_ResNeXt101_32x4d_fp16.yaml

@@ -19,6 +19,7 @@ Global:
 Arch:
   name: SE_ResNeXt101_32x4d
   class_num: 1000
+  input_image_channel: *image_channel
  
 # loss function config for traing/eval process
 Loss:

ppcls/static/program.py

@@ -264,11 +264,6 @@ def build(config,
             # data_format should be assigned in arch-dict
             input_image_channel = config["Global"]["image_shape"][
                 0]  # default as [3, 224, 224]
-            if input_image_channel != 3:
-                logger.warning(
-                    "Input image channel is changed to {}, maybe for better speed-up".
-                    format(input_image_channel))
-                config["Arch"]["input_image_channel"] = input_image_channel
             model = build_model(config["Arch"])
             out = model(feeds["data"])
             # end of build model