Using hashcat v3.10-542, I am having a warning "nvmlDeviceSetPowerManagementLimit()"  for each hash or method or wathever.

hashcat (v3.10-542-ge1010ff) starting...

OpenCL Platform #1: NVIDIA Corporation
* Device #1: GeForce GTX 1080, 2048/8192 MB allocatable, 20MCU

nvmlDeviceSetPowerManagementLimit(): Insufficient Permissions

Why ?

Thanks for your help!
You need root privileges to do that. If you don't want to run hashcat as root, simply ignore it, it doesn't harm.
Ok thanks Smile