Did PAPI nvml component support K20c for getting power usage?
Because I nvml API "nvmlDeviceGetPowerUsage" is available on K20c, but when I use "papi_native_avail" to show available events, Power usage event does not contain in the list, only contain 5 event showing below

Does there any feature or configuration should I set?
Here is the system environment
OS: Ubuntu 12.04.2 LTS (64bit Server)
Kernel: 3.8.0-33-generic
CPU: Intel(R) Xeon(R) CPU E5-2620 2.00GHz (6C12T)*2
Mem: DDR3 1333 8G*2 (16G)
PAPI version: 5.2.0.0
GCC version: 4.4.7
CUDA version: 5.5
NVIDIA driver: 331.20
NVML version: 331.20
Thanks,
Po-Ting