telegraf parse of nvidia

nvidia.conf

[[inputs.logparser]]
   files = ["/opt/nvidia/nvidia_log.csv"]
   from_beginning = true
   [inputs.logparser.grok]
      patterns = ["%{GPU}",'''%{TIMESTAMP_ISO8601:timestamp:ts-"2006/01/02 15:04:05.000"}''']
      measurement = "gpu"
      custom_patterns = '''
       GPU %{DATA:timestamp:ts-"2006/01/02 15:04:05.000"}, %{DATA:gpu_name:tag}, %{DATA:slot:tag}, %{NUMBER:driver:float}, P%{NUMBER:pstate:int}, %{NUMBER:temperature:int}, %{NUMBER:gpu_utilization:int} %, %{NUMBER:memory_utilization:int} %, %{NUMBER:memory_total:int} MiB, %{NUMBER:memory_free:int} MiB, %{NUMBER:memory_used:int} MiB, %{NUMBER:fan_speed:int} %, %{NUMBER:power_draw:float} W, %{NUMBER:sm_clock:int} MHz, %{NUMBER:memory_clock:int} MHz, %{NUMBER:graphics_clock:int} MHz
      '''