SmartShiftEco
Demonstrates how to control AMD SmartShift Eco when programming with ADLX.
Command Prompts
| Command Prompt | Description |
|---|---|
| 1 | Display AMD SmartShift Eco support. |
| 2 | Display AMD SmartShift Eco enabled state. |
| 3 | Set AMD SmartShift Eco enabled state. |
| 4 | Display AMD SmartShift Eco inactive state. |
| 5 | Display AMD GPU connect support. |
| 6 | Display GPU power state. |
| 7 | Power on a GPU. |
| 8 | Power off a GPU. |
| 9 | Abort power off a GPU. |
| A | Display get application list support. |
| B | Get application list. |
| M/m | Show this menu. |
| Q/q | Quit. |
Sample Path
/Samples/C/PowerTuning/SmartShiftEco
Code
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//
// Copyright (c) 2023 Advanced Micro Devices, Inc. All rights reserved.
//
//-------------------------------------------------------------------------------------------------
#include "SDK/ADLXHelper/Windows/C/ADLXHelper.h"
#include "SDK/Include/IPowerTuning1.h"
#include "SDK/Include/IApplications.h"
#include "SDK/Include/ISystem2.h"
#include "SDK/Include/IApplications.h"
// Main menu
void MainMenu();
// Menu action control
void MenuControl(IADLXPowerTuningServices1* powerTuningServices, IADLXSmartShiftEco* smartShiftEco);
// Wait for exit with error message
int WaitAndExit(const char* msg, const int retCode);
// Display AMD SmartShift Eco support
void ShowSmartShiftEcoSupport(IADLXSmartShiftEco* smartShiftEco);
// Display AMD SmartShift Eco enabled state
void ShowSmartShiftEcoEnabledState(IADLXSmartShiftEco* smartShiftEco);
// Set AMD SmartShift Eco enabled state
void SetSmartShiftEcoEnabledState(IADLXSmartShiftEco* smartShiftEco);
// Display AMD SmartShift Eco inactive state
void ShowSmartShiftEcoInactiveState(IADLXSmartShiftEco* smartShiftEco);
// Display AMD GPU connect support
void ShowGPUConnectSupport(IADLXPowerTuningServices1* powerTuningService);
// Use functions of GPU connect
void UseGPUConnectFunctions(IADLXPowerTuningServices1* powerTuningService, char num);
// Display GPU power state
void ShowGPUPowerState(IADLXGPU2* gpu);
// Power on a GPU
void PowerOnGPU(IADLXGPU2* gpu);
// Power off a GPU
void PowerOffGPU(IADLXGPU2* gpu);
// Abort power off a GPU
void AbortPowerOffGPU(IADLXGPU2* gpu);
// Set power control to default
void SetPowerControlToDefault(IADLXSmartShiftEco* smartShiftEco);
// Display get application list support
void ShowGetApplicationListSupport(IADLXGPU2* gpu);
// Get application list
void GetApplicationList(IADLXGPU2* gpu);
adlx_bool ADLX_STD_CALL OnGPUAppsListChanged(IADLXGPUAppsListEventListener* pThis, IADLXGPU2* pGPU, IADLXApplicationList* pApplications)
{
// Using pGPU ...
// Using pApplications ...
return true;
}
static const IADLXGPUAppsListEventListenerVtbl gpuAppsListChangedCallBackVtbl = { &OnGPUAppsListChanged };
static IADLXGPUAppsListEventListener gpuAppsListChangedCallBack = { &gpuAppsListChangedCallBackVtbl };
HANDLE smartShiftEcoChangedBlockEvent = NULL;
adlx_bool ADLX_STD_CALL OnPowerTuningChanged(IADLXPowerTuningChangedListener* pThis, IADLXPowerTuningChangedEvent* pPowerTuningChangedEvent)
{
IADLXPowerTuningChangedEvent1* pPowerTuningChangedEvent1 = NULL;
pPowerTuningChangedEvent->pVtbl->QueryInterface(pPowerTuningChangedEvent, IID_IADLXPowerTuningChangedEvent1(), (void**)(&pPowerTuningChangedEvent1));
if (pPowerTuningChangedEvent1->pVtbl->IsSmartShiftEcoChanged(pPowerTuningChangedEvent1))
{
printf("\\tSmartShiftEcoChanged\\n");
}
pPowerTuningChangedEvent1->pVtbl->Release(pPowerTuningChangedEvent1);
SetEvent(smartShiftEcoChangedBlockEvent);
return true;
}
static const IADLXPowerTuningChangedListenerVtbl smartShiftecochangedcallbackVtbl = { &OnPowerTuningChanged };
static IADLXPowerTuningChangedListener smartShiftEcoChangedCallBack = { &smartShiftecochangedcallbackVtbl };
int main()
{
ADLX_RESULT res = ADLX_FAIL ;
// Initialize ADLX
res = ADLXHelper_Initialize();
if (ADLX_SUCCEEDED (res))
{
// Get system services
IADLXSystem* sys = ADLXHelper_GetSystemServices();
// Get IADLXSystem1 interface via IADLXSystem::QueryInterface
IADLXSystem2* system2 = NULL;
res = sys->pVtbl->QueryInterface(sys, IID_IADLXSystem2(), (void**)(&system2));
if (ADLX_SUCCEEDED (res))
{
smartShiftEcoChangedBlockEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
// Add GPU applications list event listener
IADLXGPUAppsListChangedHandling* appsListHandle = NULL;
res = system2->pVtbl->GetGPUAppsListChangedHandling(system2, &appsListHandle);
ADLX_RESULT addListenerResult1 = ADLX_FAIL ;
if (ADLX_SUCCEEDED (res))
addListenerResult1 = appsListHandle->pVtbl->AddGPUAppsListEventListener(appsListHandle, &gpuAppsListChangedCallBack);
// Get power tuning service
IADLXPowerTuningServices* powerTuningService = NULL;
res = system2->pVtbl->GetPowerTuningServices(system2, &powerTuningService);
if (ADLX_SUCCEEDED (res))
{
// Get power tuning service 1
IADLXPowerTuningServices1* powerTuningService1 = NULL;
res = powerTuningService->pVtbl->QueryInterface(powerTuningService, IID_IADLXPowerTuningServices1(), (void**)(&powerTuningService1));
if (ADLX_SUCCEEDED (res))
{
// Add power tuning changed listener
IADLXPowerTuningChangedHandling* powerTuningChangedHandle = NULL;
res = powerTuningService1->pVtbl->GetPowerTuningChangedHandling(powerTuningService1, &powerTuningChangedHandle);
auto addListenerResult2 = ADLX_FAIL ;
if (ADLX_SUCCEEDED (res))
addListenerResult2 = powerTuningChangedHandle->pVtbl->AddPowerTuningEventListener(powerTuningChangedHandle, &smartShiftEcoChangedCallBack);
// Get AMD SmartShift Eco interface
IADLXSmartShiftEco* smartShiftEco = NULL;
res = powerTuningService1->pVtbl->GetSmartShiftEco(powerTuningService1, &smartShiftEco);
if (ADLX_SUCCEEDED (res))
{
// Display main menu options
MainMenu();
// Get and execute the choice
MenuControl(powerTuningService1, smartShiftEco);
}
else
printf("Failed to get AMD SmartShift Eco interface\\n");
// Remove power tuning changed listener
if (ADLX_SUCCEEDED (addListenerResult2))
powerTuningChangedHandle->pVtbl->RemovePowerTuningEventListener(powerTuningChangedHandle, &smartShiftEcoChangedCallBack);
if (smartShiftEco != NULL)
{
smartShiftEco->pVtbl->Release(smartShiftEco);
smartShiftEco= NULL;
}
if (powerTuningChangedHandle != NULL)
{
powerTuningChangedHandle->pVtbl->Release(powerTuningChangedHandle);
powerTuningChangedHandle= NULL;
}
}
else
printf("Failed to get power tuning service 1\\n");
if (powerTuningService1 != NULL)
{
powerTuningService1->pVtbl->Release(powerTuningService1);
powerTuningService1= NULL;
}
}
else
printf("Failed to get power tuning service\\n");
// Remove GPU applications list event listener
if (ADLX_SUCCEEDED (addListenerResult1))
appsListHandle->pVtbl->RemoveGPUAppsListEventListener(appsListHandle, &gpuAppsListChangedCallBack);
if (powerTuningService != NULL)
{
powerTuningService->pVtbl->Release(powerTuningService);
powerTuningService = NULL;
}
if (appsListHandle != NULL)
{
appsListHandle->pVtbl->Release(appsListHandle);
appsListHandle = NULL;
}
}
else
printf("Failed to get IADLXSystem2\\n");
if (system2 != NULL)
{
system2->pVtbl->Release(system2);
system2 = NULL;
}
}
else
return WaitAndExit("\\tg_ADLXHelp initialize failed", 0);
// Destroy ADLX
res = ADLXHelper_Terminate();
printf("Destroy ADLX res: %d\\n", res);
// Pause to see the print out
system("pause");
return 0;
}
void MainMenu()
{
printf("\\tChoose from the following options:\\n");
printf("\\t->Press 1 to display AMD SmartShift Eco support\\n");
printf("\\t->Press 2 to display AMD SmartShift Eco enabled state\\n");
printf("\\t->Press 3 to set AMD SmartShift Eco enabled state\\n");
printf("\\t->Press 4 to display AMD SmartShift Eco inactive state\\n");
printf("\\t->Press 5 to display AMD GPU connect support\\n");
printf("\\t->Press 6 to display GPU power state\\n");
printf("\\t->Press 7 to power on a GPU\\n");
printf("\\t->Press 8 to power off a GPU\\n");
printf("\\t->Press 9 to abort power off a GPU\\n");
printf("\\t->Press A to set power control to defaul\\n");
printf("\\t->Press B to display get application list support\\n");
printf("\\t->Press C to get application list\\n");
printf("\\t->Press Q/q to terminate the application\\n");
printf("\\t->Press M/m to display main menu options\\n");
}
void MenuControl(IADLXPowerTuningServices1* powerTuningServices, IADLXSmartShiftEco* smartShiftEco)
{
int num = 0;
while ((num = getchar()) != 'q' && num != 'Q')
{
switch (num)
{
case '1': // Display AMD SmartShift Eco support
ShowSmartShiftEcoSupport(smartShiftEco);
break;
case '2': // Display AMD SmartShift Eco enabled state
ShowSmartShiftEcoEnabledState(smartShiftEco);
break;
case '3': // Set AMD SmartShift Eco enabled state
SetSmartShiftEcoEnabledState(smartShiftEco);
break;
case '4': // Display AMD SmartShift Eco inactive state
ShowSmartShiftEcoInactiveState(smartShiftEco);
break;
case '5': // Display AMD GPU connect support
ShowGPUConnectSupport(powerTuningServices);
break;
case 'A': // Set power control to default
SetPowerControlToDefault(smartShiftEco);
break;
case '6':
case '7':
case '8':
case '9':
case 'B':
case 'C':
UseGPUConnectFunctions(powerTuningServices, num);
break;
case 'm': // Display menu options
case 'M':
MainMenu();
break;
default:
break;
}
}
}
int WaitAndExit(const char* msg, const int retCode)
{
// Printout the message and pause to see it before returning the desired code
if (NULL != msg)
printf("%s\\n", msg);
system("pause");
return retCode;
}
// Display AMD SmartShift Eco support
void ShowSmartShiftEcoSupport(IADLXSmartShiftEco* smartShiftEco)
{
adlx_bool supported = false;
ADLX_RESULT res = smartShiftEco->pVtbl->IsSupported(smartShiftEco, &supported);
if (ADLX_SUCCEEDED (res))
printf("\\tIs AMD SmartShift Eco supported: %d\\n", supported);
}
// Display AMD SmartShift Eco enabled state
void ShowSmartShiftEcoEnabledState(IADLXSmartShiftEco* smartShiftEco)
{
adlx_bool supported = false;
ADLX_RESULT res = smartShiftEco->pVtbl->IsSupported(smartShiftEco, &supported);
if (ADLX_SUCCEEDED (res) && supported)
{
adlx_bool enabled = false;
ADLX_RESULT res = smartShiftEco->pVtbl->IsEnabled(smartShiftEco, &enabled);
if (ADLX_SUCCEEDED (res))
printf("\\tIs AMD SmartShift Eco enabled: %d\\n", enabled);
}
}
// Set AMD SmartShift Eco enabled state
void SetSmartShiftEcoEnabledState(IADLXSmartShiftEco* smartShiftEco)
{
adlx_bool supported = false;
ADLX_RESULT res = smartShiftEco->pVtbl->IsSupported(smartShiftEco, &supported);
if (ADLX_SUCCEEDED (res) && supported)
{
adlx_bool enabled = false;
ADLX_RESULT res = smartShiftEco->pVtbl->IsEnabled(smartShiftEco, &enabled);
if (ADLX_SUCCEEDED (res))
printf("\\tCurrent AMD SmartShift Eco enable state is: %d\\n", enabled);
res = smartShiftEco->pVtbl->SetEnabled(smartShiftEco, !enabled);
if (ADLX_SUCCEEDED (res))
{
WaitForSingleObject(smartShiftEcoChangedBlockEvent, 5000);
ResetEvent(smartShiftEcoChangedBlockEvent);
printf("\\tSet AMD SmartShift Eco enabled state to: %d\\n", !enabled);
}
res = smartShiftEco->pVtbl->IsEnabled(smartShiftEco, &enabled);
if (ADLX_SUCCEEDED (res))
printf("\\tAfter set, the AMD SmartShift Eco enable state is: %d\\n", enabled);
}
}
// Display AMD SmartShift Eco inactive state
void ShowSmartShiftEcoInactiveState(IADLXSmartShiftEco* smartShiftEco)
{
adlx_bool supported = false;
ADLX_RESULT res = smartShiftEco->pVtbl->IsSupported(smartShiftEco, &supported);
if (ADLX_SUCCEEDED (res) && supported)
{
adlx_bool enabled = false;
ADLX_RESULT res = smartShiftEco->pVtbl->IsEnabled(smartShiftEco, &enabled);
if (ADLX_SUCCEEDED (res) && enabled)
{
adlx_bool inactive = false;
ADLX_RESULT res = smartShiftEco->pVtbl->IsInactive(smartShiftEco, &inactive);
printf("\\tIs AMD SmartShift Eco inactive: %d\\n", inactive);
if (inactive)
{
ADLX_SMARTSHIFT_ECO_INACTIVE_REASON reason = INACTIVE_REASON_UNKNOWN ;
ADLX_RESULT res = smartShiftEco->pVtbl->GetInactiveReason(smartShiftEco, &reason);
printf("\\tIs AMD SmartShift Eco inactive reason: %d\\n", reason);
}
}
}
}
// Display AMD GPU connect support
void ShowGPUConnectSupport(IADLXPowerTuningServices1* powerTuningService)
{
adlx_bool supported = false;
ADLX_RESULT res = powerTuningService->pVtbl->IsGPUConnectSupported(powerTuningService, &supported);
if (ADLX_SUCCEEDED (res))
printf("\\tIs GPU connect supported: %d\\n", supported);
}
// Use functions of GPU connect
void UseGPUConnectFunctions(IADLXPowerTuningServices1* powerTuningService, char num)
{
adlx_bool supported = false;
ADLX_RESULT res = powerTuningService->pVtbl->IsGPUConnectSupported(powerTuningService, &supported);
if (ADLX_SUCCEEDED (res) && supported)
{
IADLXGPU2List* gpuList = NULL;
res = powerTuningService->pVtbl->GetGPUConnectGPUs(powerTuningService, &gpuList);
if (ADLX_SUCCEEDED (res) && !gpuList->pVtbl->Empty(gpuList))
{
// Use the first GPU
IADLXGPU2* gpu = NULL;
res = gpuList->pVtbl->At_GPU2List(gpuList, gpuList->pVtbl->Begin(gpuList), &gpu);
if (ADLX_SUCCEEDED (res))
{
switch (num)
{
case '6': // Display GPU power state
ShowGPUPowerState(gpu);
break;
case '7': // Power on a GPU
PowerOnGPU(gpu);
break;
case '8': // Power off a GPU
PowerOffGPU(gpu);
break;
case '9': // Abort power off a GPU
AbortPowerOffGPU(gpu);
break;
case 'B': // Display get application list support
ShowGetApplicationListSupport(gpu);
break;
case 'C': // Get application list
GetApplicationList(gpu);
break;
default:
break;
}
}
if (gpu != NULL)
{
gpu->pVtbl->Release(gpu);
gpu = NULL;
}
}
else
printf("\\tNot found GPU support GPU connect\\n");
if (gpuList != NULL)
{
gpuList->pVtbl->Release(gpuList);
gpuList = NULL;
}
}
else
printf("\\tGPU connect is not supported\\n");
}
// Display GPU power state
void ShowGPUPowerState(IADLXGPU2* gpu)
{
adlx_bool state = false;
ADLX_RESULT res = gpu->pVtbl->IsPowerOff(gpu, &state);
if (ADLX_SUCCEEDED (res))
printf("\\tIs GPU power off: %d\\n", state);
}
// Power on a GPU
void PowerOnGPU(IADLXGPU2* gpu)
{
adlx_bool state = false;
ADLX_RESULT res = gpu->pVtbl->IsPowerOff(gpu, &state);
if (ADLX_SUCCEEDED (res))
printf("\\tCurrent the GPU power state is: %s\\n", (state ? "OFF" : "ON"));
res = gpu->pVtbl->PowerOn(gpu);
if (ADLX_SUCCEEDED (res))
printf("\\tPower on the GPU\\n");
res = gpu->pVtbl->IsPowerOff(gpu, &state);
if (ADLX_SUCCEEDED (res))
printf("\\tAfter set, the GPU power state is: %s\\n", (state ? "OFF" : "ON"));
}
adlx_bool ADLX_STD_CALL OnGPUConnectChanged(IADLXGPUConnectChangedListener* pThis, IADLXGPUConnectChangedEvent* pGPUConnectChangedEvent)
{
if (pGPUConnectChangedEvent->pVtbl->IsGPUPowerChanged(pGPUConnectChangedEvent))
printf("\\tGPU power changed\\n");
if (pGPUConnectChangedEvent->pVtbl->IsGPUAppsListChanged(pGPUConnectChangedEvent))
{
printf("\\tGPU applications list changed\\n");
IADLXGPU2* gpu = NULL;
ADLX_RESULT res = pGPUConnectChangedEvent->pVtbl->GetGPU(pGPUConnectChangedEvent, &gpu);
if (ADLX_SUCCEEDED (res))
{
IADLXApplicationList* appList = NULL;
res = gpu->pVtbl->GetApplications(gpu, &appList);
if (ADLX_SUCCEEDED (res))
{
for (adlx_uint it = appList->pVtbl->Begin(appList); it != appList->pVtbl->End(appList); ++it)
{
IADLXApplication* app = NULL;
res = appList->pVtbl->At_ApplicationList(appList, it, &app);
if (ADLX_SUCCEEDED (res))
{
adlx_ulong pid = 0;
res = app->pVtbl->ProcessID(app, &pid);
if (ADLX_SUCCEEDED (res))
printf("\\tThe process ID of the process running on the GPU is: %d\\n", pid);
const wchar_t* name = NULL;
res = app->pVtbl->Name(app, &name);
if (ADLX_SUCCEEDED (res))
printf("\\tThe name of the process running on the GPU is: %ls\\n", name);
const wchar_t* fullPath = NULL;
res = app->pVtbl->Name(app, &fullPath);
if (ADLX_SUCCEEDED (res))
printf("\\tThe full path of the process running on the GPU is: %ls\\n", fullPath);
ADLX_APP_GPU_DEPENDENCY type = APP_GPU_UNKNOWN ;
res = app->pVtbl->GPUDependencyType(app, &type);
if (ADLX_SUCCEEDED (res))
{
if (type == APP_GPU_BOUND )
printf("\\tThe GPU dependency type of the process running on the GPU is: APP_GPU_BOUND\\n");
else if (type == APP_GPU_NOT_BOUND )
printf("\\tThe GPU dependency type of the process running on the GPU is: APP_GPU_NOT_BOUND\\n");
else
printf("\\tThe GPU dependency type of the process running on the GPU is: APP_GPU_UNKNOWN\\n");
}
}
if (app != NULL)
{
app->pVtbl->Release(app);
app = NULL;
}
}
}
if (appList != NULL)
{
appList->pVtbl->Release(appList);
appList = NULL;
}
}
if (gpu != NULL)
{
gpu->pVtbl->Release(gpu);
gpu = NULL;
}
}
ADLX_RESULT res = ADLX_FAIL ;
if (pGPUConnectChangedEvent->pVtbl->IsGPUPowerChangeError(pGPUConnectChangedEvent, &res))
{
if (res == ADLX_TIMEOUT_OPERATION )
printf("\\tGPU power change error, timeout operation\\n");
else
printf("\\tGPU power change error, result is: %d\\n", res);
}
return true;
}
static const IADLXGPUConnectChangedListenerVtbl gpuConnectChangedListenerVtbl = { &OnGPUConnectChanged };
static IADLXGPUConnectChangedListener gpuConnectChangedListener = { &gpuConnectChangedListenerVtbl };
// Power off a GPU
void PowerOffGPU(IADLXGPU2* gpu)
{
adlx_bool state = false;
ADLX_RESULT res = gpu->pVtbl->IsPowerOff(gpu , &state);
if (ADLX_SUCCEEDED (res))
printf("\\tCurrent the GPU power state is: %s\\n", (state ? "OFF" : "ON"));
res = gpu->pVtbl->StartPowerOff(gpu, &gpuConnectChangedListener, 10000);
if (ADLX_SUCCEEDED (res))
printf("\\tPower off the GPU\\n");
else if (res == ADLX_GPU_IN_USE )
{
printf("\\tStart power off the GPU, but GPU is in use, wait for 10 seconds\\n");
printf("\\tPress 9 can abort power off GPU during this time\\n");
}
}
// Abort power off a GPU
void AbortPowerOffGPU(IADLXGPU2* gpu)
{
ADLX_RESULT res = gpu->pVtbl->AbortPowerOff(gpu);
if (ADLX_SUCCEEDED (res))
printf("\\tAbort power off GPU successfully\\n");
}
// Set power control to default
void SetPowerControlToDefault(IADLXSmartShiftEco* smartShiftEco)
{
// The default power control policy is to enable AMD SmartShift Eco
ADLX_RESULT res = smartShiftEco->pVtbl->SetEnabled(smartShiftEco, true);
if (ADLX_SUCCEEDED (res))
printf("\\tSet Power control to default\\n");
}
// Display get application list support
void ShowGetApplicationListSupport(IADLXGPU2* gpu)
{
adlx_bool supported = false;
ADLX_RESULT res = gpu->pVtbl->IsSupportedApplicationList(gpu, &supported);
if (ADLX_SUCCEEDED (res))
printf("\\tIs application list Supported: %d\\n", supported);
}
// Get application list
void GetApplicationList(IADLXGPU2* gpu)
{
adlx_bool supported = false;
ADLX_RESULT res = gpu->pVtbl->IsSupportedApplicationList(gpu, &supported);
if (ADLX_SUCCEEDED (res) && supported)
{
IADLXApplicationList* appList = NULL;
res = gpu->pVtbl->GetApplications(gpu, &appList);
if (ADLX_SUCCEEDED (res))
{
for (adlx_uint it = appList->pVtbl->Begin(appList); it != appList->pVtbl->End(appList); ++it)
{
IADLXApplication* app = NULL;
res = appList->pVtbl->At_ApplicationList(appList, it, &app);
if (ADLX_SUCCEEDED (res))
{
adlx_ulong pid = 0;
res = app->pVtbl->ProcessID(app, &pid);
if (ADLX_SUCCEEDED (res))
printf("\\tThe process ID of the process running on the GPU is: %d\\n", pid);
const wchar_t* name = NULL;
res = app->pVtbl->Name(app, &name);
if (ADLX_SUCCEEDED (res))
printf("\\tThe name of the process running on the GPU is: %ls\\n", name);
const wchar_t* fullPath = NULL;
res = app->pVtbl->Name(app, &fullPath);
if (ADLX_SUCCEEDED (res))
printf("\\tThe full path of the process running on the GPU is: %ls\\n", fullPath);
ADLX_APP_GPU_DEPENDENCY type = APP_GPU_UNKNOWN ;
res = app->pVtbl->GPUDependencyType(app, &type);
if (ADLX_SUCCEEDED (res))
{
if (type == APP_GPU_BOUND )
printf("\\tThe GPU dependency type of the process running on the GPU is: APP_GPU_BOUND\\n");
else if (type == APP_GPU_NOT_BOUND )
printf("\\tThe GPU dependency type of the process running on the GPU is: APP_GPU_NOT_BOUND\\n");
else
printf("\\tThe GPU dependency type of the process running on the GPU is: APP_GPU_UNKNOWN\\n");
}
}
if (app != NULL)
{
app->pVtbl->Release(app);
app = NULL;
}
}
}
if (appList != NULL)
{
appList->pVtbl->Release(appList);
appList = NULL;
}
}
}
