public void Close()
{
foreach (Hardware gpu in _hardware)
{
gpu.Close();
}
NvidiaML.Close();
}
public NvidiaGpu(int adapterIndex, NvApi.NvPhysicalGpuHandle handle, NvApi.NvDisplayHandle?displayHandle, ISettings settings)
: base(GetName(handle), new Identifier("gpu", adapterIndex.ToString(CultureInfo.InvariantCulture)), settings)
{
_adapterIndex = adapterIndex;
_handle = handle;
_displayHandle = displayHandle;
bool hasPciBusId = NvApi.NvAPI_GPU_GetBusId(handle, out uint busId) == NvApi.NvStatus.OK;
NvApi.NvGPUThermalSettings thermalSettings = GetThermalSettings();
_temperatures = new Sensor[thermalSettings.Count];
for (int i = 0; i < _temperatures.Length; i++)
{
NvApi.NvSensor sensor = thermalSettings.Sensor[i];
string name;
switch (sensor.Target)
{
case NvApi.NvThermalTarget.BOARD:
name = "GPU Board";
break;
case NvApi.NvThermalTarget.GPU:
name = "GPU Core";
break;
case NvApi.NvThermalTarget.MEMORY:
name = "GPU Memory";
break;
case NvApi.NvThermalTarget.POWER_SUPPLY:
name = "GPU Power Supply";
break;
case NvApi.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]);
}
if (NvApi.NvAPI_GPU_GetTachReading != null && NvApi.NvAPI_GPU_GetTachReading(handle, out _) == NvApi.NvStatus.OK)
{
_fan = new Sensor("GPU", 0, SensorType.Fan, this, settings);
}
else if (NvApi.NvAPI_GPU_ClientFanCoolersGetStatus != null && GetCoolerSettings().Count > 0)
{
_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 Memory Controller", 1, SensorType.Load, this, settings);
_loads[2] = new Sensor("GPU Video Engine", 2, SensorType.Load, this, settings);
_loads[3] = new Sensor("GPU Bus", 4, SensorType.Load, this, settings);
_memoryLoad = new Sensor("GPU Memory", 3, 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);
NvApi.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 (NvidiaML.IsAvailable)
{
if (hasPciBusId)
{
_nvmlDevice = NvidiaML.NvmlDeviceGetHandleByPciBusId($" 0000:{busId:X2}:00.0") ?? NvidiaML.NvmlDeviceGetHandleByIndex(_adapterIndex);
}
else
{
_nvmlDevice = NvidiaML.NvmlDeviceGetHandleByIndex(_adapterIndex);
}
if (_nvmlDevice.HasValue)
{
_powerUsage = new Sensor("GPU Package", 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()
{
NvApi.NvGPUThermalSettings settings = GetThermalSettings();
foreach (Sensor sensor in _temperatures)
{
sensor.Value = settings.Sensor[sensor.Index].CurrentTemp;
}
bool readTach = false;
if (_fan != null)
{
if (NvApi.NvAPI_GPU_GetTachReading(_handle, out int value) == NvApi.NvStatus.OK)
{
_fan.Value = value;
ActivateSensor(_fan);
readTach = 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];
}
}
NvApi.NvPStates states = new NvApi.NvPStates {
Version = NvApi.GPU_PSTATES_VER, PStates = new NvApi.NvPState[NvApi.MAX_PSTATES_PER_GPU]
};
if (NvApi.NvAPI_GPU_GetPStates != null && NvApi.NvAPI_GPU_GetPStates(_handle, ref states) == NvApi.NvStatus.OK)
{
for (int i = 0; i < _loads.Length; i++)
{
if (states.PStates[i].Present)
{
_loads[i].Value = states.PStates[i].Percentage;
ActivateSensor(_loads[i]);
}
}
}
else
{
NvApi.NvUsages usages = new NvApi.NvUsages {
Version = NvApi.GPU_USAGES_VER, Usage = new uint[NvApi.MAX_USAGES_PER_GPU]
};
if (NvApi.NvAPI_GPU_GetUsages != null && NvApi.NvAPI_GPU_GetUsages(_handle, ref usages) == NvApi.NvStatus.OK)
{
_loads[0].Value = usages.Usage[2];
_loads[1].Value = usages.Usage[6];
_loads[2].Value = usages.Usage[10];
for (int i = 0; i < 3; i++)
{
ActivateSensor(_loads[i]);
}
}
}
bool readCoolerSettings = false;
NvApi.NvGPUCoolerSettings coolerSettings = GetCoolerSettings();
if (coolerSettings.Count > 0)
{
_control.Value = coolerSettings.Cooler[0].CurrentLevel;
ActivateSensor(_control);
readCoolerSettings = true;
}
if (!readTach || !readCoolerSettings)
{
NvApi.NvFanCoolersStatus coolersStatus = GetFanCoolersStatus();
if (coolersStatus.Count > 0)
{
if (!readCoolerSettings)
{
_control.Value = coolersStatus.Items[0].CurrentLevel;
ActivateSensor(_control);
}
if (!readTach && _fan != null)
{
_fan.Value = coolersStatus.Items[0].CurrentRpm;
ActivateSensor(_fan);
}
}
}
NvApi.NvMemoryInfo memoryInfo = new NvApi.NvMemoryInfo {
Version = NvApi.GPU_MEMORY_INFO_VER, Values = new uint[NvApi.MAX_MEMORY_VALUES_PER_GPU]
};
if (NvApi.NvAPI_GPU_GetMemoryInfo != null && _displayHandle.HasValue && NvApi.NvAPI_GPU_GetMemoryInfo(_displayHandle.Value, ref memoryInfo) == NvApi.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 (NvidiaML.IsAvailable && _nvmlDevice.HasValue)
{
int?result = NvidiaML.NvmlDeviceGetPowerUsage(_nvmlDevice.Value);
if (result.HasValue)
{
_powerUsage.Value = (float)result.Value / 1000;
ActivateSensor(_powerUsage);
}
// In MB/s, throughput sensors are passed as in KB/s.
uint?rx = NvidiaML.NvmlDeviceGetPcieThroughput(_nvmlDevice.Value, NvidiaML.NvmlPcieUtilCounter.RxBytes);
if (rx.HasValue)
{
_pcieThroughputRx.Value = rx * 1024;
ActivateSensor(_pcieThroughputRx);
}
uint?tx = NvidiaML.NvmlDeviceGetPcieThroughput(_nvmlDevice.Value, NvidiaML.NvmlPcieUtilCounter.TxBytes);
if (tx.HasValue)
{
_pcieThroughputTx.Value = tx * 1024;
ActivateSensor(_pcieThroughputTx);
}
}
}
public override void Update()
{
NvApi.NvGPUThermalSettings settings = GetThermalSettings();
foreach (Sensor sensor in _temperatures)
{
sensor.Value = settings.Sensor[sensor.Index].CurrentTemp;
}
if (_fan != null)
{
NvApi.NvAPI_GPU_GetTachReading(_handle, out int value);
_fan.Value = value;
}
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];
}
}
NvApi.NvPStates states = new NvApi.NvPStates {
Version = NvApi.GPU_PSTATES_VER, PStates = new NvApi.NvPState[NvApi.MAX_PSTATES_PER_GPU]
};
if (NvApi.NvAPI_GPU_GetPStates != null && NvApi.NvAPI_GPU_GetPStates(_handle, ref states) == NvApi.NvStatus.OK)
{
for (int i = 0; i < 3; i++)
{
if (states.PStates[i].Present)
{
_loads[i].Value = states.PStates[i].Percentage;
ActivateSensor(_loads[i]);
}
}
}
else
{
NvApi.NvUsages usages = new NvApi.NvUsages {
Version = NvApi.GPU_USAGES_VER, Usage = new uint[NvApi.MAX_USAGES_PER_GPU]
};
if (NvApi.NvAPI_GPU_GetUsages != null && NvApi.NvAPI_GPU_GetUsages(_handle, ref usages) == NvApi.NvStatus.OK)
{
_loads[0].Value = usages.Usage[2];
_loads[1].Value = usages.Usage[6];
_loads[2].Value = usages.Usage[10];
for (int i = 0; i < 3; i++)
{
ActivateSensor(_loads[i]);
}
}
}
NvApi.NvGPUCoolerSettings coolerSettings = GetCoolerSettings();
if (coolerSettings.Count > 0)
{
_control.Value = coolerSettings.Cooler[0].CurrentLevel;
ActivateSensor(_control);
}
NvApi.NvMemoryInfo memoryInfo = new NvApi.NvMemoryInfo {
Version = NvApi.GPU_MEMORY_INFO_VER, Values = new uint[NvApi.MAX_MEMORY_VALUES_PER_GPU]
};
if (NvApi.NvAPI_GPU_GetMemoryInfo != null && _displayHandle.HasValue && NvApi.NvAPI_GPU_GetMemoryInfo(_displayHandle.Value, ref memoryInfo) == NvApi.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 (NvidiaML.IsAvailable && _nvmlDevice.HasValue)
{
var result = NvidiaML.NvmlDeviceGetPowerUsage(_nvmlDevice.Value);
if (result.HasValue)
{
_powerUsage.Value = (float)result.Value / 1000;
ActivateSensor(_powerUsage);
}
}
}
public NvidiaGpu(int adapterIndex, PhysicalGPU physicalGpu, ISettings settings)
: base(GetName(physicalGpu),
new Identifier("gpu-nvidia", adapterIndex.ToString(CultureInfo.InvariantCulture)),
settings)
{
_adapterIndex = adapterIndex;
_physicalGpu = physicalGpu;
int busId = -1;
try
{
busId = physicalGpu.BusInformation.BusId;
}
catch (Exception e) when(e is NVIDIAApiException or NVIDIANotSupportedException)
{
}
try
{
GPUThermalSensor[] thermalSensors = physicalGpu.ThermalInformation.ThermalSensors.ToArray();
_temperatures = new Sensor[thermalSensors.Length];
for (int i = 0; i < thermalSensors.Length; i++)
{
GPUThermalSensor sensor = thermalSensors[i];
string name = sensor.Target switch
{
ThermalSettingsTarget.GPU => "GPU Core",
ThermalSettingsTarget.Memory => "GPU Memory",
ThermalSettingsTarget.PowerSupply => "GPU Power Supply",
ThermalSettingsTarget.Board => "GPU Board",
ThermalSettingsTarget.VisualComputingBoard => "GPU Visual Computing Board",
ThermalSettingsTarget.VisualComputingInlet => "GPU Visual Computing Inlet",
ThermalSettingsTarget.VisualComputingOutlet => "GPU Visual Computing Outlet",
_ => "GPU"
};
_temperatures[i] = new Sensor(name, i, SensorType.Temperature, this, new ParameterDescription[0], settings);
ActivateSensor(_temperatures[i]);
}
}
catch (Exception e) when(e is NVIDIAApiException or NVIDIANotSupportedException)
{
}
try
{
KeyValuePair <PublicClockDomain, ClockDomainInfo>[] clocks = physicalGpu.CurrentClockFrequencies.Clocks.OrderBy(x => x.Key).ToArray();
_clocks = new Sensor[clocks.Length];
for (int i = 0; i < clocks.Length; i++)
{
KeyValuePair <PublicClockDomain, ClockDomainInfo> clock = clocks[i];
string name = clock.Key switch
{
PublicClockDomain.Graphics => "GPU Core",
PublicClockDomain.Memory => "GPU Memory",
PublicClockDomain.Processor => "GPU Shader",
PublicClockDomain.Video => "GPU Video",
_ => null
};
_clocks[i] = new Sensor(name, i, SensorType.Clock, this, settings);
ActivateSensor(_clocks[i]);
}
}
catch (Exception e) when(e is NVIDIAApiException or NVIDIANotSupportedException)
{
}
try
{
GPUUsageDomainStatus[] usages = physicalGpu.UsageInformation.UtilizationDomainsStatus.ToArray();
_loads = new Sensor[usages.Length + 1];
for (int i = 0; i < usages.Length; i++)
{
string name = usages[i].Domain switch
{
UtilizationDomain.GPU => "GPU Core",
UtilizationDomain.FrameBuffer => "GPU Memory Controller",
UtilizationDomain.VideoEngine => "GPU Video Engine",
UtilizationDomain.BusInterface => "GPU Bus",
_ => null
};
_loads[i] = new Sensor(name, i, SensorType.Load, this, settings);
ActivateSensor(_loads[i]);
}
_loads[_loads.Length - 1] = new Sensor("GPU Memory", _loads.Length - 1, SensorType.Load, this, settings);
ActivateSensor(_loads[_loads.Length - 1]);
}
catch (Exception e) when(e is NVIDIAApiException or NVIDIANotSupportedException)
{
}
try
{
GPUCooler[] coolers = physicalGpu.CoolerInformation.Coolers.ToArray();
if (coolers.Length > 0)
{
_controls = new Sensor[coolers.Length];
_fanControls = new Control[coolers.Length];
_fans = new Sensor[coolers.Length];
for (int i = 0; i < coolers.Length; i++)
{
GPUCooler cooler = coolers[i];
string name = "GPU Fan" + (coolers.Length > 1 ? " " + (cooler.CoolerId) : string.Empty);
_fans[i] = new Sensor(name, i, SensorType.Fan, this, settings);
ActivateSensor(_fans[i]);
_controls[i] = new Sensor(name, i, SensorType.Control, this, settings);
ActivateSensor(_controls[i]);
_fanControls[i] = new Control(_controls[i], settings, cooler.DefaultMinimumLevel, cooler.DefaultMaximumLevel);
_fanControls[i].ControlModeChanged += ControlModeChanged;
_fanControls[i].SoftwareControlValueChanged += SoftwareControlValueChanged;
_controls[i].Control = _fanControls[i];
ControlModeChanged(_fanControls[i]);
}
}
}
catch (Exception e) when(e is NVIDIAApiException or NVIDIANotSupportedException)
{
}
try
{
GPUPowerTopologyStatus[] powerTopologies = physicalGpu.PowerTopologyInformation.PowerTopologyEntries.ToArray();
if (powerTopologies.Length > 0)
{
_powers = new Sensor[powerTopologies.Length];
for (int i = 0; i < powerTopologies.Length; i++)
{
GPUPowerTopologyStatus powerTopology = powerTopologies[i];
string name = powerTopology.Domain switch
{
PowerTopologyDomain.GPU => "GPU Power",
PowerTopologyDomain.Board => "GPU Board Power",
_ => null
};
_powers[i] = new Sensor(name, i + (_loads?.Length ?? 0), SensorType.Load, this, settings);
ActivateSensor(_powers[i]);
}
}
}
catch (Exception e) when(e is NVIDIAApiException or NVIDIANotSupportedException)
{
}
if (NvidiaML.IsAvailable || NvidiaML.Initialize())
{
if (busId != -1)
{
_nvmlDevice = NvidiaML.NvmlDeviceGetHandleByPciBusId($" 0000:{busId:X2}:00.0") ?? NvidiaML.NvmlDeviceGetHandleByIndex(_adapterIndex);
}
else
{
_nvmlDevice = NvidiaML.NvmlDeviceGetHandleByIndex(_adapterIndex);
}
if (_nvmlDevice.HasValue)
{
_powerUsage = new Sensor("GPU Package", 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);
if (!Software.OperatingSystem.IsUnix)
{
NvidiaML.NvmlPciInfo?pciInfo = NvidiaML.NvmlDeviceGetPciInfo(_nvmlDevice.Value);
if (pciInfo is { } pci)
{
string[] deviceIds = D3DDisplayDevice.GetDeviceIdentifiers();
if (deviceIds != null)
{
foreach (string deviceId in deviceIds)
{
if (deviceId.IndexOf("VEN_" + pci.pciVendorId.ToString("X"), StringComparison.OrdinalIgnoreCase) != -1 &&
deviceId.IndexOf("DEV_" + pci.pciDeviceId.ToString("X"), StringComparison.OrdinalIgnoreCase) != -1 &&
deviceId.IndexOf("SUBSYS_" + pci.pciSubSystemId.ToString("X"), StringComparison.OrdinalIgnoreCase) != -1)
{
bool isMatch = false;
string actualDeviceId = D3DDisplayDevice.GetActualDeviceIdentifier(deviceId);
try
{
if (Registry.GetValue(@"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nvlddmkm\Enum", adapterIndex.ToString(), null) is string adapterPnpId)
{
if (actualDeviceId.IndexOf(adapterPnpId, StringComparison.OrdinalIgnoreCase) != -1 ||
adapterPnpId.IndexOf(actualDeviceId, StringComparison.OrdinalIgnoreCase) != -1)
{
isMatch = true;
}
}
}
catch
{
// Ignored.
}
if (!isMatch)
{
try
{
string path = actualDeviceId;
path = @"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\" + path;
if (Registry.GetValue(path, "LocationInformation", null) is string locationInformation)
{
// For example:
// @System32\drivers\pci.sys,#65536;PCI bus %1, device %2, function %3;(38,0,0)
int index = locationInformation.IndexOf('(');
if (index != -1)
{
index++;
int secondIndex = locationInformation.IndexOf(',', index);
if (secondIndex != -1)
{
string bus = locationInformation.Substring(index, secondIndex - index);
if (pci.bus.ToString() == bus)
{
isMatch = true;
}
}
}
}
}
catch
{
// Ignored.
}
}
if (isMatch && D3DDisplayDevice.GetDeviceInfoByIdentifier(deviceId, out D3DDisplayDevice.D3DDeviceInfo deviceInfo))
{
int nodeSensorIndex = (_loads?.Length ?? 0) + (_powers?.Length ?? 0);
int memorySensorIndex = 3; // There are three normal GPU memory sensors.
_d3dDeviceId = deviceId;
_gpuDedicatedMemoryUsage = new Sensor("D3D Dedicated Memory Used", memorySensorIndex++, SensorType.SmallData, this, settings);
_gpuSharedMemoryUsage = new Sensor("D3D Shared Memory Used", memorySensorIndex, SensorType.SmallData, this, settings);
_gpuNodeUsage = new Sensor[deviceInfo.Nodes.Length];
_gpuNodeUsagePrevValue = new long[deviceInfo.Nodes.Length];
_gpuNodeUsagePrevTick = new DateTime[deviceInfo.Nodes.Length];
foreach (D3DDisplayDevice.D3DDeviceNodeInfo node in deviceInfo.Nodes.OrderBy(x => x.Name))
{
_gpuNodeUsage[node.Id] = new Sensor(node.Name, nodeSensorIndex++, SensorType.Load, this, settings);
_gpuNodeUsagePrevValue[node.Id] = node.RunningTime;
_gpuNodeUsagePrevTick[node.Id] = node.QueryTime;
}
}
}
}
}
}
}
}
}
_memoryFree = new Sensor("GPU Memory Free", 0, SensorType.SmallData, this, settings);
_memoryUsed = new Sensor("GPU Memory Used", 1, SensorType.SmallData, this, settings);
_memoryTotal = new Sensor("GPU Memory Total", 2, SensorType.SmallData, this, settings);
Update();
}
public NvidiaGpu(int adapterIndex, NvApi.NvPhysicalGpuHandle handle, NvApi.NvDisplayHandle?displayHandle, ISettings settings)
: base(GetName(handle), new Identifier("gpu-nvidia", adapterIndex.ToString(CultureInfo.InvariantCulture)), settings)
{
_adapterIndex = adapterIndex;
_handle = handle;
_displayHandle = displayHandle;
bool hasPciBusId = NvApi.NvAPI_GPU_GetBusId(handle, out uint busId) == NvApi.NvStatus.OK;
NvApi.NvGPUThermalSettings thermalSettings = GetThermalSettings();
_temperatures = new Sensor[thermalSettings.Count];
for (int i = 0; i < _temperatures.Length; i++)
{
NvApi.NvSensor sensor = thermalSettings.Sensor[i];
string name;
switch (sensor.Target)
{
case NvApi.NvThermalTarget.BOARD:
name = "GPU Board";
break;
case NvApi.NvThermalTarget.GPU:
name = "GPU Core";
break;
case NvApi.NvThermalTarget.MEMORY:
name = "GPU Memory";
break;
case NvApi.NvThermalTarget.POWER_SUPPLY:
name = "GPU Power Supply";
break;
case NvApi.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]);
}
if (NvApi.NvAPI_GPU_GetTachReading != null && NvApi.NvAPI_GPU_GetTachReading(handle, out _) == NvApi.NvStatus.OK)
{
_fan = new Sensor("GPU", 0, SensorType.Fan, this, settings);
}
else if (NvApi.NvAPI_GPU_ClientFanCoolersGetStatus != null && GetCoolerSettings().Count > 0)
{
_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 Memory Controller", 1, SensorType.Load, this, settings);
_loads[2] = new Sensor("GPU Video Engine", 2, SensorType.Load, this, settings);
_loads[3] = new Sensor("GPU Bus", 4, SensorType.Load, this, settings);
_memoryLoad = new Sensor("GPU Memory", 3, 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);
NvApi.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 (NvidiaML.IsAvailable || NvidiaML.Initialize())
{
if (hasPciBusId)
{
_nvmlDevice = NvidiaML.NvmlDeviceGetHandleByPciBusId($" 0000:{busId:X2}:00.0") ?? NvidiaML.NvmlDeviceGetHandleByIndex(_adapterIndex);
}
else
{
_nvmlDevice = NvidiaML.NvmlDeviceGetHandleByIndex(_adapterIndex);
}
if (_nvmlDevice.HasValue)
{
_powerUsage = new Sensor("GPU Package", 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);
if (!Software.OperatingSystem.IsUnix)
{
NvidiaML.NvmlPciInfo?pciInfo = NvidiaML.NvmlDeviceGetPciInfo(_nvmlDevice.Value);
if (pciInfo is { } pci)
{
string[] deviceIdentifiers = D3DDisplayDevice.GetDeviceIdentifiers();
if (deviceIdentifiers != null)
{
foreach (string deviceIdentifier in deviceIdentifiers)
{
if (deviceIdentifier.IndexOf("VEN_" + pci.pciVendorId.ToString("X"), StringComparison.OrdinalIgnoreCase) != -1 &&
deviceIdentifier.IndexOf("DEV_" + pci.pciDeviceId.ToString("X"), StringComparison.OrdinalIgnoreCase) != -1 &&
deviceIdentifier.IndexOf("SUBSYS_" + pci.pciSubSystemId.ToString("X"), StringComparison.OrdinalIgnoreCase) != -1)
{
bool isMatch = false;
try
{
if (Registry.GetValue(@"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nvlddmkm\Enum", adapterIndex.ToString(), null) is string adapterPnpId)
{
if (deviceIdentifier.IndexOf(adapterPnpId.Replace('\\', '#'), StringComparison.OrdinalIgnoreCase) != -1)
{
isMatch = true;
}
}
}
catch
{
// Ignored.
}
if (!isMatch)
{
try
{
string path = deviceIdentifier;
if (path.StartsWith(@"\\?\"))
{
path = path.Substring(4);
}
path = path.Replace('#', '\\');
int index = path.IndexOf('{');
if (index != -1)
{
path = path.Substring(0, index);
}
path = @"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\" + path;
if (Registry.GetValue(path, "LocationInformation", null) is string locationInformation)
{
// For example:
// @System32\drivers\pci.sys,#65536;PCI bus %1, device %2, function %3;(38,0,0)
index = locationInformation.IndexOf('(');
if (index != -1)
{
index++;
int secondIndex = locationInformation.IndexOf(',', index);
if (secondIndex != -1)
{
string bus = locationInformation.Substring(index, secondIndex - index);
if (pci.bus.ToString() == bus)
{
isMatch = true;
}
}
}
}
}
catch
{
// Ignored.
}
}
if (isMatch && D3DDisplayDevice.GetDeviceInfoByIdentifier(deviceIdentifier, out D3DDisplayDevice.D3DDeviceInfo deviceInfo))
{
_windowsDeviceName = deviceIdentifier;
_gpuDedicatedMemoryUsage = new Sensor("D3D Dedicated Memory Used", _memorySensorIndex++, SensorType.SmallData, this, settings);
_gpuSharedMemoryUsage = new Sensor("D3D Shared Memory Used", _memorySensorIndex++, SensorType.SmallData, this, settings);
_gpuNodeUsage = new Sensor[deviceInfo.Nodes.Length];
_gpuNodeUsagePrevValue = new long[deviceInfo.Nodes.Length];
_gpuNodeUsagePrevTick = new DateTime[deviceInfo.Nodes.Length];
foreach (D3DDisplayDevice.D3DDeviceNodeInfo node in deviceInfo.Nodes)
{
_gpuNodeUsage[node.Id] = new Sensor(node.Name, _nodeSensorIndex++, SensorType.Load, this, settings);
_gpuNodeUsagePrevValue[node.Id] = node.RunningTime;
_gpuNodeUsagePrevTick[node.Id] = node.QueryTime;
}
}
}
}
}
}
}
}
}
Update();
}
public override void Update()
{
if (_windowsDeviceName != null && D3DDisplayDevice.GetDeviceInfoByIdentifier(_windowsDeviceName, out D3DDisplayDevice.D3DDeviceInfo deviceInfo))
{
_gpuDedicatedMemoryUsage.Value = 1f * deviceInfo.GpuDedicatedUsed / 1024 / 1024;
_gpuSharedMemoryUsage.Value = 1f * deviceInfo.GpuSharedUsed / 1024 / 1024;
ActivateSensor(_gpuDedicatedMemoryUsage);
ActivateSensor(_gpuSharedMemoryUsage);
foreach (D3DDisplayDevice.D3DDeviceNodeInfo node in deviceInfo.Nodes)
{
long runningTimeDiff = node.RunningTime - _gpuNodeUsagePrevValue[node.Id];
long timeDiff = node.QueryTime.Ticks - _gpuNodeUsagePrevTick[node.Id].Ticks;
_gpuNodeUsage[node.Id].Value = 100f * runningTimeDiff / timeDiff;
_gpuNodeUsagePrevValue[node.Id] = node.RunningTime;
_gpuNodeUsagePrevTick[node.Id] = node.QueryTime;
ActivateSensor(_gpuNodeUsage[node.Id]);
}
}
NvApi.NvGPUThermalSettings settings = GetThermalSettings();
// settings.Count is 0 when no valid data available, this happens when you try to read out this value with a high polling interval.
if (settings.Count > 0)
{
foreach (Sensor sensor in _temperatures)
{
sensor.Value = settings.Sensor[sensor.Index].CurrentTemp;
}
}
bool readTach = false;
if (_fan != null)
{
if (NvApi.NvAPI_GPU_GetTachReading(_handle, out int value) == NvApi.NvStatus.OK)
{
_fan.Value = value;
ActivateSensor(_fan);
readTach = 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];
}
}
NvApi.NvPStates states = new() { Version = NvApi.GPU_PSTATES_VER, PStates = new NvApi.NvPState[NvApi.MAX_PSTATES_PER_GPU] };
if (NvApi.NvAPI_GPU_GetPStates != null && NvApi.NvAPI_GPU_GetPStates(_handle, ref states) == NvApi.NvStatus.OK)
{
for (int i = 0; i < _loads.Length; i++)
{
if (states.PStates[i].Present)
{
_loads[i].Value = states.PStates[i].Percentage;
ActivateSensor(_loads[i]);
}
}
}
else
{
NvApi.NvUsages usages = new() { Version = NvApi.GPU_USAGES_VER, Usage = new uint[NvApi.MAX_USAGES_PER_GPU] };
if (NvApi.NvAPI_GPU_GetUsages != null && NvApi.NvAPI_GPU_GetUsages(_handle, ref usages) == NvApi.NvStatus.OK)
{
_loads[0].Value = usages.Usage[2];
_loads[1].Value = usages.Usage[6];
_loads[2].Value = usages.Usage[10];
for (int i = 0; i < 3; i++)
{
ActivateSensor(_loads[i]);
}
}
}
bool readCoolerSettings = false;
NvApi.NvGPUCoolerSettings coolerSettings = GetCoolerSettings();
if (coolerSettings.Count > 0)
{
_control.Value = coolerSettings.Cooler[0].CurrentLevel;
ActivateSensor(_control);
readCoolerSettings = true;
}
if (!readTach || !readCoolerSettings)
{
NvApi.NvFanCoolersStatus coolersStatus = GetFanCoolersStatus();
if (coolersStatus.Count > 0)
{
if (!readCoolerSettings)
{
_control.Value = coolersStatus.Items[0].CurrentLevel;
ActivateSensor(_control);
}
if (!readTach && _fan != null)
{
_fan.Value = coolersStatus.Items[0].CurrentRpm;
ActivateSensor(_fan);
}
}
}
NvApi.NvMemoryInfo memoryInfo = new() { Version = NvApi.GPU_MEMORY_INFO_VER, Values = new uint[NvApi.MAX_MEMORY_VALUES_PER_GPU] };
if (NvApi.NvAPI_GPU_GetMemoryInfo != null && _displayHandle.HasValue && NvApi.NvAPI_GPU_GetMemoryInfo(_displayHandle.Value, ref memoryInfo) == NvApi.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 (NvidiaML.IsAvailable && _nvmlDevice.HasValue)
{
int?result = NvidiaML.NvmlDeviceGetPowerUsage(_nvmlDevice.Value);
if (result.HasValue)
{
_powerUsage.Value = (float)result.Value / 1000;
ActivateSensor(_powerUsage);
}
// In MB/s, throughput sensors are passed as in KB/s.
uint?rx = NvidiaML.NvmlDeviceGetPcieThroughput(_nvmlDevice.Value, NvidiaML.NvmlPcieUtilCounter.RxBytes);
if (rx.HasValue)
{
_pcieThroughputRx.Value = rx * 1024;
ActivateSensor(_pcieThroughputRx);
}
uint?tx = NvidiaML.NvmlDeviceGetPcieThroughput(_nvmlDevice.Value, NvidiaML.NvmlPcieUtilCounter.TxBytes);
if (tx.HasValue)
{
_pcieThroughputTx.Value = tx * 1024;
ActivateSensor(_pcieThroughputTx);
}
}
}
public override string GetReport()
