internal DeviceMonitorNVIDIA(NvapiNvmlInfo info)
{
UUID = info.UUID;
BusID = info.BusID;
_nvHandle = info.nvHandle;
_nvmlDevice = info.nvmlHandle;
try
{
var powerInfo = new NvGPUPowerInfo
{
Version = NVAPI.GPU_POWER_INFO_VER,
Entries = new NvGPUPowerInfoEntry[4]
};
var ret = NVAPI.NvAPI_DLL_ClientPowerPoliciesGetInfo(_nvHandle, ref powerInfo);
if (ret != NvStatus.OK)
{
throw new Exception(ret.ToString());
}
Debug.Assert(powerInfo.Entries.Length == 4);
if (powerInfo.Entries[0].MinPower == 0 || powerInfo.Entries[0].MaxPower == 0)
{
throw new Exception("Power control not available!");
}
_minPowerLimit = powerInfo.Entries[0].MinPower;
_maxPowerLimit = powerInfo.Entries[0].MaxPower;
_defaultPowerLimit = powerInfo.Entries[0].DefPower;
PowerLimitsEnabled = true;
// set to high by default
var defaultLevel = PowerLevel.High;
if (!DeviceMonitorManager.DisableDevicePowerModeSettings)
{
var success = SetPowerTarget(defaultLevel);
if (!success)
{
Logger.Info("NVML", $"Cannot set power target ({defaultLevel.ToString()}) for device with BusID={BusID}");
}
}
else
{
PowerLevel = PowerLevel.Disabled;
}
}
catch (Exception e)
{
Logger.Error("NVML", $"Getting power info failed with message \"{e.Message}\", disabling power setting");
PowerLimitsEnabled = false;
}
}
public void ResetHandles(NvapiNvmlInfo info)
{
_nvHandle = info.nvHandle;
_nvmlDevice = info.nvmlHandle;
try
{
var powerInfo = new NvGPUPowerInfo
{
Version = NVAPI.GPU_POWER_INFO_VER,
Entries = new NvGPUPowerInfoEntry[4]
};
var ret = NVAPI.NvAPI_DLL_ClientPowerPoliciesGetInfo(_nvHandle, ref powerInfo);
if (ret != NvStatus.OK)
{
throw new Exception(ret.ToString());
}
Debug.Assert(powerInfo.Entries.Length == 4);
if (powerInfo.Entries[0].MinPower == 0 || powerInfo.Entries[0].MaxPower == 0)
{
throw new Exception("Power control not available!");
}
_minPowerLimit = powerInfo.Entries[0].MinPower;
_maxPowerLimit = powerInfo.Entries[0].MaxPower;
_defaultPowerLimit = powerInfo.Entries[0].DefPower;
}
catch (Exception e)
{
Logger.Error("NVML", $"Getting power info failed with message \"{e.Message}\", disabling power setting");
PowerLimitsEnabled = false;
}
}
