public void Close()
{
foreach (Hardware gpu in hardware)
{
gpu.Close();
}
if (NVML.IsInitialized)
{
NVML.NvmlShutdown();
}
}
public NvidiaGPU(int adapterIndex, NvPhysicalGpuHandle handle,
NvDisplayHandle?displayHandle, ISettings settings)
: base(GetName(handle), new Identifier("nvidiagpu",
adapterIndex.ToString(CultureInfo.InvariantCulture)), settings)
{
this.adapterIndex = adapterIndex;
this.handle = handle;
this.displayHandle = displayHandle;
NvGPUThermalSettings thermalSettings = GetThermalSettings();
temperatures = new Sensor[thermalSettings.Count];
for (int i = 0; i < temperatures.Length; i++)
{
NvSensor sensor = thermalSettings.Sensor[i];
string name;
switch (sensor.Target)
{
case NvThermalTarget.BOARD: name = "GPU Board"; break;
case NvThermalTarget.GPU: name = "GPU Core"; break;
case NvThermalTarget.MEMORY: name = "GPU Memory"; break;
case NvThermalTarget.POWER_SUPPLY: name = "GPU Power Supply"; break;
case NvThermalTarget.UNKNOWN: name = "GPU Unknown"; break;
default: name = "GPU"; break;
}
temperatures[i] = new Sensor(name, i, SensorType.Temperature, this,
new ParameterDescription[0], settings);
ActivateSensor(temperatures[i]);
}
fan = new Sensor("GPU", 0, SensorType.Fan, this, settings);
clocks = new Sensor[3];
clocks[0] = new Sensor("GPU Core", 0, SensorType.Clock, this, settings);
clocks[1] = new Sensor("GPU Memory", 1, SensorType.Clock, this, settings);
clocks[2] = new Sensor("GPU Shader", 2, SensorType.Clock, this, settings);
for (int i = 0; i < clocks.Length; i++)
{
ActivateSensor(clocks[i]);
}
loads = new Sensor[4];
loads[0] = new Sensor("GPU Core", 0, SensorType.Load, this, settings);
loads[1] = new Sensor("GPU Frame Buffer", 1, SensorType.Load, this, settings);
loads[2] = new Sensor("GPU Video Engine", 2, SensorType.Load, this, settings);
loads[3] = new Sensor("GPU Bus Interface", 3, SensorType.Load, this, settings);
memoryLoad = new Sensor("GPU Memory", 4, SensorType.Load, this, settings);
memoryFree = new Sensor("GPU Memory Free", 1, SensorType.SmallData, this, settings);
memoryUsed = new Sensor("GPU Memory Used", 2, SensorType.SmallData, this, settings);
memoryAvail = new Sensor("GPU Memory Total", 3, SensorType.SmallData, this, settings);
control = new Sensor("GPU Fan", 0, SensorType.Control, this, settings);
NvGPUCoolerSettings coolerSettings = GetCoolerSettings();
if (coolerSettings.Count > 0)
{
fanControl = new Control(control, settings,
coolerSettings.Cooler[0].DefaultMin,
coolerSettings.Cooler[0].DefaultMax);
fanControl.ControlModeChanged += ControlModeChanged;
fanControl.SoftwareControlValueChanged += SoftwareControlValueChanged;
ControlModeChanged(fanControl);
control.Control = fanControl;
}
if (NVML.IsInitialized)
{
if (NVAPI.NvAPI_GPU_GetBusId != null &&
NVAPI.NvAPI_GPU_GetBusId(handle, out uint busId) == NvStatus.OK)
{
if (NVML.NvmlDeviceGetHandleByPciBusId != null &&
NVML.NvmlDeviceGetHandleByPciBusId(
"0000:" + busId.ToString("X2") + ":00.0", out var result)
== NVML.NvmlReturn.Success)
{
device = result;
power = new Sensor("GPU Power", 0, SensorType.Power, this, settings);
pcieThroughputRx = new Sensor("GPU PCIE Rx", 0,
SensorType.Throughput, this, settings);
pcieThroughputTx = new Sensor("GPU PCIE Tx", 1,
SensorType.Throughput, this, settings);
}
}
}
Update();
}
public override void Update()
{
NvGPUThermalSettings settings = GetThermalSettings();
foreach (Sensor sensor in temperatures)
{
sensor.Value = settings.Sensor[sensor.Index].CurrentTemp;
}
bool tachReadingOk = false;
if (NVAPI.NvAPI_GPU_GetTachReading != null &&
NVAPI.NvAPI_GPU_GetTachReading(handle, out int fanValue) == NvStatus.OK)
{
fan.Value = fanValue;
ActivateSensor(fan);
tachReadingOk = true;
}
uint[] values = GetClocks();
if (values != null)
{
clocks[1].Value = 0.001f * values[8];
if (values[30] != 0)
{
clocks[0].Value = 0.0005f * values[30];
clocks[2].Value = 0.001f * values[30];
}
else
{
clocks[0].Value = 0.001f * values[0];
clocks[2].Value = 0.001f * values[14];
}
}
var infoEx = new NvDynamicPstatesInfoEx();
infoEx.Version = NVAPI.GPU_DYNAMIC_PSTATES_INFO_EX_VER;
infoEx.UtilizationDomains =
new NvUtilizationDomainEx[NVAPI.NVAPI_MAX_GPU_UTILIZATIONS];
if (NVAPI.NvAPI_GPU_GetDynamicPstatesInfoEx != null &&
NVAPI.NvAPI_GPU_GetDynamicPstatesInfoEx(handle, ref infoEx) == NvStatus.OK)
{
for (int i = 0; i < loads.Length; i++)
{
if (infoEx.UtilizationDomains[i].Present)
{
loads[i].Value = infoEx.UtilizationDomains[i].Percentage;
ActivateSensor(loads[i]);
}
}
}
else
{
var info = new NvDynamicPstatesInfo();
info.Version = NVAPI.GPU_DYNAMIC_PSTATES_INFO_VER;
info.UtilizationDomains =
new NvUtilizationDomain[NVAPI.NVAPI_MAX_GPU_UTILIZATIONS];
if (NVAPI.NvAPI_GPU_GetDynamicPstatesInfo != null &&
NVAPI.NvAPI_GPU_GetDynamicPstatesInfo(handle, ref info) == NvStatus.OK)
{
for (int i = 0; i < loads.Length; i++)
{
if (info.UtilizationDomains[i].Present)
{
loads[i].Value = info.UtilizationDomains[i].Percentage;
ActivateSensor(loads[i]);
}
}
}
}
var coolerSettings = GetCoolerSettings();
var coolerSettingsOk = false;
if (coolerSettings.Count > 0)
{
control.Value = coolerSettings.Cooler[0].CurrentLevel;
ActivateSensor(control);
coolerSettingsOk = true;
}
if (!tachReadingOk || !coolerSettingsOk)
{
var coolersStatus = GetFanCoolersStatus();
if (coolersStatus.Count > 0)
{
if (!coolerSettingsOk)
{
control.Value = coolersStatus.Items[0].CurrentLevel;
ActivateSensor(control);
coolerSettingsOk = true;
}
if (!tachReadingOk)
{
fan.Value = coolersStatus.Items[0].CurrentRpm;
ActivateSensor(fan);
tachReadingOk = true;
}
}
}
NvDisplayDriverMemoryInfo memoryInfo = new NvDisplayDriverMemoryInfo();
memoryInfo.Version = NVAPI.DISPLAY_DRIVER_MEMORY_INFO_VER;
memoryInfo.Values = new uint[NVAPI.MAX_MEMORY_VALUES_PER_GPU];
if (NVAPI.NvAPI_GetDisplayDriverMemoryInfo != null && displayHandle.HasValue &&
NVAPI.NvAPI_GetDisplayDriverMemoryInfo(displayHandle.Value, ref memoryInfo) ==
NvStatus.OK)
{
uint totalMemory = memoryInfo.Values[0];
uint freeMemory = memoryInfo.Values[4];
float usedMemory = Math.Max(totalMemory - freeMemory, 0);
memoryFree.Value = (float)freeMemory / 1024;
memoryAvail.Value = (float)totalMemory / 1024;
memoryUsed.Value = usedMemory / 1024;
memoryLoad.Value = 100f * usedMemory / totalMemory;
ActivateSensor(memoryAvail);
ActivateSensor(memoryUsed);
ActivateSensor(memoryFree);
ActivateSensor(memoryLoad);
}
if (power != null)
{
if (NVML.NvmlDeviceGetPowerUsage(device.Value, out int powerValue)
== NVML.NvmlReturn.Success)
{
power.Value = powerValue * 0.001f;
ActivateSensor(power);
}
}
if (pcieThroughputRx != null)
{
if (NVML.NvmlDeviceGetPcieThroughput(device.Value,
NVML.NvmlPcieUtilCounter.RxBytes, out uint value)
== NVML.NvmlReturn.Success)
{
pcieThroughputRx.Value = value * (1.0f / 0x400);
ActivateSensor(pcieThroughputRx);
}
}
if (pcieThroughputTx != null)
{
if (NVML.NvmlDeviceGetPcieThroughput(device.Value,
NVML.NvmlPcieUtilCounter.TxBytes, out uint value)
== NVML.NvmlReturn.Success)
{
pcieThroughputTx.Value = value * (1.0f / 0x400);
ActivateSensor(pcieThroughputTx);
}
}
}
public NvidiaGroup(ISettings settings)
{
if (!NVAPI.IsAvailable)
{
return;
}
report.AppendLine("NVAPI");
report.AppendLine();
string version;
if (NVAPI.NvAPI_GetInterfaceVersionString(out version) == NvStatus.OK)
{
report.Append(" Version: ");
report.AppendLine(version);
}
NvPhysicalGpuHandle[] handles =
new NvPhysicalGpuHandle[NVAPI.MAX_PHYSICAL_GPUS];
int count;
if (NVAPI.NvAPI_EnumPhysicalGPUs == null)
{
report.AppendLine(" Error: NvAPI_EnumPhysicalGPUs not available");
report.AppendLine();
return;
}
else
{
NvStatus status = NVAPI.NvAPI_EnumPhysicalGPUs(handles, out count);
if (status != NvStatus.OK)
{
report.AppendLine(" Status: " + status);
report.AppendLine();
return;
}
}
var result = NVML.NvmlInit();
report.AppendLine();
report.AppendLine("NVML");
report.AppendLine();
report.AppendLine(" Status: " + result);
report.AppendLine();
IDictionary <NvPhysicalGpuHandle, NvDisplayHandle> displayHandles =
new Dictionary <NvPhysicalGpuHandle, NvDisplayHandle>();
if (NVAPI.NvAPI_EnumNvidiaDisplayHandle != null &&
NVAPI.NvAPI_GetPhysicalGPUsFromDisplay != null)
{
NvStatus status = NvStatus.OK;
int i = 0;
while (status == NvStatus.OK)
{
NvDisplayHandle displayHandle = new NvDisplayHandle();
status = NVAPI.NvAPI_EnumNvidiaDisplayHandle(i, ref displayHandle);
i++;
if (status == NvStatus.OK)
{
NvPhysicalGpuHandle[] handlesFromDisplay =
new NvPhysicalGpuHandle[NVAPI.MAX_PHYSICAL_GPUS];
uint countFromDisplay;
if (NVAPI.NvAPI_GetPhysicalGPUsFromDisplay(displayHandle,
handlesFromDisplay, out countFromDisplay) == NvStatus.OK)
{
for (int j = 0; j < countFromDisplay; j++)
{
if (!displayHandles.ContainsKey(handlesFromDisplay[j]))
{
displayHandles.Add(handlesFromDisplay[j], displayHandle);
}
}
}
}
}
}
report.Append("Number of GPUs: ");
report.AppendLine(count.ToString(CultureInfo.InvariantCulture));
for (int i = 0; i < count; i++)
{
NvDisplayHandle displayHandle;
displayHandles.TryGetValue(handles[i], out displayHandle);
hardware.Add(new NvidiaGPU(i, handles[i], displayHandle, settings));
}
report.AppendLine();
}