/// <summary>
/// Gets all physical GPUs
/// </summary>
/// <returns>An array of physical GPUs</returns>
public static PhysicalGPU[] GetPhysicalGPUs()
{
return(GPUApi.EnumPhysicalGPUs().Select(handle => new PhysicalGPU(handle)).ToArray());
}
public NvidiaGroup(ISettings settings)
{
if (!NVAPI.IsAvailable)
{
return;
}
report.AppendLine("NVAPI");
report.AppendLine();
if (NVAPI.NvAPI_GetInterfaceVersionString(out string 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));
// API wrapper calls
PhysicalGPUHandle[] physicalGPUHandles = null;
try
{
physicalGPUHandles = GPUApi.EnumPhysicalGPUs();
}
catch { }
for (int i = 0; i < count; i++)
{
displayHandles.TryGetValue(handles[i], out NvDisplayHandle displayHandle);
if (physicalGPUHandles == null || !physicalGPUHandles.Any())
{
hardware.Add(new NvidiaGPU(i, handles[i], displayHandle, settings));
}
else
{
hardware.Add(new NvidiaGPU(i, handles[i], displayHandle, settings,
new NvAPIWrapper.GPU.PhysicalGPU(physicalGPUHandles[i])));
}
}
report.AppendLine();
}