static void Main(string[] args)
{
var gpus = NvidiaGPU.EnumGPUs();
if (gpus == null || gpus.Count == 0)
{
Console.WriteLine("Nvidia gpu is not found.");
return;
}
Console.WriteLine("gpumap v{0} by emminer, inspired by leenoox's gpumap in nvOC.", GetVersion());
Console.WriteLine("gpumap will help you physically map your GPU's by spinning single GPU fan(s) only, one at a time.");
Console.WriteLine("It will also show some info about the GPU. Please follow prompts.");
Console.WriteLine("gpumap has detected {0} GPU's.", gpus.Count);
Console.WriteLine("To continue make sure you've stoped all mining processes.");
Console.WriteLine("Continue(y / n) ? ");
var key = Console.ReadKey();
Console.WriteLine();
if (key.KeyChar == 'y')
{
var cuda_drvice_order_env = Environment.GetEnvironmentVariable("CUDA_DEVICE_ORDER");
if (!"PCI_BUS_ID".Equals(cuda_drvice_order_env, StringComparison.Ordinal))
{
Console.WriteLine("Fixing the CUDA_DEVICE_ORDER=PCI_BUS_ID in order to properly map GPU's.");
Console.WriteLine("Please reboot for the changes to take effect.");
Environment.SetEnvironmentVariable("CUDA_DEVICE_ORDER", "PCI_BUS_ID", EnvironmentVariableTarget.User);
}
else
{
Run(gpus);
}
}
}
public static List <NvidiaGPU> EnumGPUs()
{
NvStatus status;
var gpus = new List <NvidiaGPU>();
if (!NVAPI.IsAvailable)
{
return(gpus);
}
var gpuHandles = new NvPhysicalGpuHandle[NVAPI.MAX_PHYSICAL_GPUS];
status = NVAPI.NvAPI_EnumPhysicalGPUs(gpuHandles, out int count);
if (status != NvStatus.OK)
{
return(gpus);
}
for (int i = 0; i < count; i++)
{
var handle = gpuHandles[i];
var sb = new StringBuilder(NVAPI.SHORT_STRING_MAX);
status = NVAPI.NvAPI_GPU_GetFullName(handle, sb);
if (status != NvStatus.OK)
{
continue;
}
NvGPUCoolerSettings settings = new NvGPUCoolerSettings
{
Version = NVAPI.GPU_COOLER_SETTINGS_VER,
Count = 1,
Coolers = new NvCooler[NVAPI.MAX_COOLER_PER_GPU]
};
status = NVAPI.NvAPI_GPU_GetCoolerSettings(handle, 0, ref settings);
if (status != NvStatus.OK)
{
continue;
}
status = NVAPI.NvAPI_GPU_GetPCIIdentifiers(handle, out uint deviceId, out uint subSystemId, out uint revisionId, out uint extDeviceId);
if (status != NvStatus.OK)
{
continue;
}
status = NVAPI.NvAPI_GPU_GetBusId(handle, out uint busId);
if (status != NvStatus.OK)
{
continue;
}
var gpu = new NvidiaGPU(handle, settings)
{
BusId = busId, Name = sb.ToString(), Index = i, SubDeviceId = subSystemId
};
gpus.Add(gpu);
}
return(gpus);
}
