!8957 delete redundant param ccl in config.py

From: @zhao_ting_v
Reviewed-by: @liangchenghui,@linqingke
Signed-off-by: @liangchenghui

model_zoo/official/cv/mobilenetv2/src/config.py

@@ -63,7 +63,6 @@ def set_config(args):
         "keep_checkpoint_max": 200,
         "save_checkpoint_path": "./",
         "platform": args.platform,
-        "ccl": "nccl",
         "run_distribute": args.run_distribute,
         "activation": "Softmax",
         "export_format": "MINDIR",
@@ -88,7 +87,6 @@ def set_config(args):
         "keep_checkpoint_max": 200,
         "save_checkpoint_path": "./",
         "platform": args.platform,
-        "ccl": "hccl",
         "device_id": int(os.getenv('DEVICE_ID', '0')),
         "rank_id": int(os.getenv('RANK_ID', '0')),
         "rank_size": int(os.getenv('RANK_SIZE', '1')),

model_zoo/official/cv/mobilenetv2/src/utils.py

@@ -38,7 +38,7 @@ def context_device_init(config):
     elif config.platform == "GPU":
         context.set_context(mode=context.GRAPH_MODE, device_target=config.platform, save_graphs=False)
         if config.run_distribute:
-            init("nccl")
+            init()
             context.set_auto_parallel_context(device_num=get_group_size(),
                                               parallel_mode=ParallelMode.DATA_PARALLEL,
                                               gradients_mean=True)