private static string GetName(NvApi.NvPhysicalGpuHandle handle)
{
if (NvApi.NvAPI_GPU_GetFullName(handle, out string gpuName) == NvApi.NvStatus.OK)
{
return("NVIDIA " + gpuName.Trim());
}
return("NVIDIA");
}
private static string GetName(NvApi.NvPhysicalGpuHandle handle)
{
if (NvApi.NvAPI_GPU_GetFullName(handle, out string gpuName) == NvApi.NvStatus.OK)
{
gpuName = gpuName.Trim();
if (gpuName.StartsWith("NVIDIA", StringComparison.OrdinalIgnoreCase))
{
return(gpuName);
}
return("NVIDIA " + gpuName.Trim());
}
return("NVIDIA");
}
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 NvidiaGroup(ISettings settings)
{
if (!NvApi.IsAvailable)
{
return;
}
_report.AppendLine("NvApi");
_report.AppendLine();
if (NvApi.NvAPI_GetInterfaceVersionString(out string version) == NvApi.NvStatus.OK)
{
_report.Append("Version: ");
_report.AppendLine(version);
}
NvApi.NvPhysicalGpuHandle[] handles = new NvApi.NvPhysicalGpuHandle[NvApi.MAX_PHYSICAL_GPUS];
if (NvApi.NvAPI_EnumPhysicalGPUs == null)
{
_report.AppendLine("Error: NvAPI_EnumPhysicalGPUs not available");
_report.AppendLine();
return;
}
NvApi.NvStatus status = NvApi.NvAPI_EnumPhysicalGPUs(handles, out int count);
if (status != NvApi.NvStatus.OK)
{
_report.AppendLine("Status: " + status);
_report.AppendLine();
return;
}
IDictionary <NvApi.NvPhysicalGpuHandle, NvApi.NvDisplayHandle> displayHandles = new Dictionary <NvApi.NvPhysicalGpuHandle, NvApi.NvDisplayHandle>();
if (NvApi.NvAPI_EnumNvidiaDisplayHandle != null && NvApi.NvAPI_GetPhysicalGPUsFromDisplay != null)
{
status = NvApi.NvStatus.OK;
int i = 0;
while (status == NvApi.NvStatus.OK)
{
NvApi.NvDisplayHandle displayHandle = new NvApi.NvDisplayHandle();
status = NvApi.NvAPI_EnumNvidiaDisplayHandle(i, ref displayHandle);
i++;
if (status == NvApi.NvStatus.OK)
{
NvApi.NvPhysicalGpuHandle[] handlesFromDisplay = new NvApi.NvPhysicalGpuHandle[NvApi.MAX_PHYSICAL_GPUS];
if (NvApi.NvAPI_GetPhysicalGPUsFromDisplay(displayHandle, handlesFromDisplay, out uint countFromDisplay) == NvApi.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++)
{
displayHandles.TryGetValue(handles[i], out NvApi.NvDisplayHandle displayHandle);
_hardware.Add(new NvidiaGpu(i, handles[i], displayHandle, settings));
}
_report.AppendLine();
}
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();
}
