make xception can get device id from environment in standalone mode, and

modify requirements.txt

model_zoo/official/cv/xception/train.py

@@ -38,7 +38,7 @@ set_seed(1)
 if __name__ == '__main__':
     parser = argparse.ArgumentParser(description='image classification training')
     parser.add_argument('--is_distributed', action='store_true', default=False, help='distributed training')
-    parser.add_argument('--device_target', type=str, default='Ascend', choices=['Ascend', 'GPU'], 
+    parser.add_argument('--device_target', type=str, default='Ascend', choices=['Ascend', 'GPU'],
                         help='run platform, (Default: Ascend)')
     parser.add_argument('--dataset_path', type=str, default=None, help='dataset path')
     parser.add_argument("--is_fp32", action='store_true', default=False, help='fp32 training, add --is_fp32')
@@ -64,9 +64,8 @@ if __name__ == '__main__':
     else:
         rank = 0
         group_size = 1
-        context.set_context(device_id=0)
-        #     if os.getenv('DEVICE_ID', "not_set").isdigit():
-        #         context.set_context(device_id=int(os.getenv('DEVICE_ID')))
+        device_id = int(os.getenv('DEVICE_ID', '0'))
+        context.set_context(device_id=device_id)
 
     context.set_context(mode=context.GRAPH_MODE, device_target=args_opt.device_target, save_graphs=False)
     # define network

requirements.txt

@@ -15,7 +15,7 @@ sklearn >= 0.0              # for st test
 pandas >= 1.0.2             # for ut test
 astunparse >= 1.6.3
 packaging >= 20.0
-pycocotools >= 2.0.0        # for st test
+pycocotools >= 2.0.2        # for st test
 tables >= 3.6.1             # for st test
 psutil >= 5.6.1
 subword-nmt>=0.3.7          # for st test