add regex

Author: wwwjn

codalab/worker/docker_utils.py

@@ -165,10 +165,14 @@ def get_nvidia_devices(self, use_docker=True):
                 remove=True,
             )
             gpu_info = output.decode()
-            if gpu_info.find("==========") != -1:  # need to remove header
-                gpus = gpu_info.split("\n")[15:-1]
-            else:
-                gpus = gpu_info.split("\n")[:-1]
+            GPU_REGEX = r"(\d+), (?:GPU-)?([a-fA-F0-9-]+)"
+            gpus = {}
+            for line in gpu_info.splitlines():
+                match = re.match(GPU_REGEX, line)
+                if match:
+                    idx = match.group(1)
+                    uuid = match.group(2)
+                    gpus[idx] = uuid
 
         else:
             # use the singularity runtime to run nvidia-smi
@@ -177,10 +181,10 @@ def get_nvidia_devices(self, use_docker=True):
             # if output['return_code'] != 0:
             #     raise SingularityError
             # gpus = output['message']
-            gpus = []
+            gpus = {}
         # Get newline delimited gpu-index, gpu-uuid list
         logger.info("GPUs: " + str(gpus))
-        return {gpu.split(',')[0].strip(): gpu.split(',')[1].strip() for gpu in gpus}
+        return gpus
 
     @wrap_exception('Unable to fetch Docker container ip')
     def get_container_ip(self, network_name: str, container_id: str):