public NvidiaGroup(ISettings settings) { if (!NVAPI.IsAvailable) { return; } report.AppendLine("NVAPI"); report.AppendLine(); string version; if (NVAPI.NvAPI_GetInterfaceVersionString(out 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; } } 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)); for (int i = 0; i < count; i++) { NvDisplayHandle displayHandle; displayHandles.TryGetValue(handles[i], out displayHandle); hardware.Add(new NvidiaGPU(i, handles[i], displayHandle, settings)); } report.AppendLine(); }