SyncGPUTuning

Navigation: Programming with ADLX → ADLX Samples → C++ Samples → Receiving Events Notifications

Demonstrates how to receive notifications of changes in GPU tuning using ADLX.

To receive the event, another application must be used to change these settings, such as the

GPUAutoTuning.

Sample Path

/Samples/CPP/ReceivingEventsNotifications/SyncGPUTuning

C++

Code

C++

//
// Copyright Advanced Micro Devices, Inc. All rights reserved.
//
//-------------------------------------------------------------------------------------------------

/// \file mainSyncGPUTuning.cpp
/// \brief Demonstrates how to receive notifications of changes in GPU tuning settings using ADLX. To receive the event, another application (such as GPUAutoTuning) must be used to change these settings.

#include "SDK/ADLXHelper/Windows/Cpp/ADLXHelper.h"
#include "SDK/Include/IGPUTuning1.h"
#include <iostream>
#include <string>

// Use ADLX namespace
using namespace adlx;

// ADLXHelper instance
// No outstanding interfaces from ADLX must exist when ADLX is destroyed.
// Use global variables to ensure validity of the interface.
static ADLXHelper g_ADLXHelp;

// Block event to verify call back
HANDLE blockEvent = nullptr;

// Get the GPU unique name
void GPUUniqueName(IADLXGPUPtr gpu, char* uniqueName);

// Call back to handle changed events
class CallBackGPUTuningChanged : public IADLXGPUTuningChangedListener
{
public:
    adlx_bool ADLX_STD_CALL OnGPUTuningChanged(IADLXGPUTuningChangedEvent* pGPUTuningChangedEvent) override
    {
        IADLXGPUTuningChangedEvent1* pGPUTuningChangedEvent1 = nullptr;
        pGPUTuningChangedEvent->QueryInterface(L"IADLXGPUTuningChangedEvent1", reinterpret_cast<void**>(&pGPUTuningChangedEvent1));
        ADLX_SYNC_ORIGIN origin = pGPUTuningChangedEvent->GetOrigin();
        if (origin == SYNC_ORIGIN_EXTERNAL)
        {
            // Get GPU
            IADLXGPUPtr gpu;
            pGPUTuningChangedEvent->GetGPU(&gpu);
            char uniqueName[128] = "Unknown";
            GPUUniqueName(gpu, uniqueName);
            std::cout << "GPU: " << uniqueName << "Get sync event, update required" << std::endl;

            if (pGPUTuningChangedEvent->IsAutomaticTuningChanged())
            {
                std::cout << "\tAutomaticTuningChanged" << std::endl;
            }
            else if (pGPUTuningChangedEvent->IsPresetTuningChanged())
            {
                std::cout << "\tPresetTuningChanged" << std::endl;
            }
            else if (pGPUTuningChangedEvent->IsManualGPUCLKTuningChanged())
            {
                std::cout << "\tManualGPUCLKTuningChanged" << std::endl;
            }
            else if (pGPUTuningChangedEvent->IsManualVRAMTuningChanged())
            {
                std::cout << "\tManualVRAMTuningChanged" << std::endl;
            }
            else if (pGPUTuningChangedEvent->IsManualFanTuningChanged())
            {
                std::cout << "\tManualFanTuningChanged" << std::endl;
            }
            else if (pGPUTuningChangedEvent->IsManualPowerTuningChanged())
            {
                std::cout << "\tManualPowerTuningChanged" << std::endl;
            }
            else if (pGPUTuningChangedEvent1->IsSmartAccessMemoryChanged())
            {
                std::cout << "\tSmartAccessMemoryChanged" << std::endl;
            }
        }
        SetEvent(blockEvent);

        // Return true for ADLX to continue notifying the next listener, or false to stop notification.
        return true;
    }
};

int main()
{
    // Define return code
    ADLX_RESULT res = ADLX_FAIL;

    // Initialize ADLX
    res = g_ADLXHelp.Initialize();
    if (ADLX_SUCCEEDED(res))
    {
        // Create block event
        blockEvent = CreateEvent(NULL, TRUE, FALSE, NULL);

        // Get GPUTuning service
        IADLXGPUTuningServicesPtr gpuTuningSrv;
        res = g_ADLXHelp.GetSystemServices()->GetGPUTuningServices(&gpuTuningSrv);

        if (ADLX_SUCCEEDED(res))
        {
            // Get Change handle
            IADLXGPUTuningChangedHandlingPtr changeHandle;
            res = gpuTuningSrv->GetGPUTuningChangedHandling(&changeHandle);
            if (ADLX_SUCCEEDED(res))
            {
                // Create call back
                IADLXGPUTuningChangedListener* call = new CallBackGPUTuningChanged;

                // Add call back
                changeHandle->AddGPUTuningEventListener(call);

                // Waits for GPUTuning sync with a timeout of 60s
                while (true)
                {
                    std::cout << "\nWaiting for GPUTuning change event (60s)...\n";
                    DWORD waitRet = WaitForSingleObject(blockEvent, 60000);
                    if (waitRet == WAIT_TIMEOUT)
                    {
                        std::cout << "=== Wait timeout(60s), ready to quit ===\n";
                        break;
                    }
                    ResetEvent(blockEvent);
                }

                // Remove call back
                changeHandle->RemoveGPUTuningEventListener(call);

                // Delete call back
                delete call;
                call = nullptr;
            }
        }
        else
        {
            std::cout << "Failed to get GPUTuning Services" << std::endl;
        }
    }
    else
    {
        std::cout << "Failed to init ADLX" << std::endl;
        return 0;
    }

    // Destroy ADLX
    res = g_ADLXHelp.Terminate();
    std::cout << "Destroy ADLX res: " << res << std::endl;

    // Close event
    if (blockEvent)
        CloseHandle(blockEvent);

    // Pause for user see the print out
    system("pause");

    return 0;
}

void GPUUniqueName(IADLXGPUPtr gpu, char* uniqueName)
{
    if (nullptr != gpu && nullptr != uniqueName)
    {
        const char* gpuName = nullptr;
        gpu->Name(&gpuName);
        adlx_int id;
        gpu->UniqueId(&id);
        sprintf_s(uniqueName, 128, "name:%s, id:%d", gpuName, id);
    }
}