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();
}