Merge pull request #217 from wooway777/issue/216

issue/216 - Fixed Enum Camparison in util.py 

test/infiniop/libinfiniop/utils.py

@@ -478,7 +478,7 @@ def get_sync_func(device):
     import torch
     device_str = infiniDeviceEnum_str_map[device]
     
-    if device_str == "cpu":
+    if device == InfiniDeviceEnum.CPU:
         sync = None
     else:
         sync = getattr(torch, device_str).synchronize