Failed to import semaphore from Vulkan to Cuda

Accelerated Computing CUDA CUDA Programming and Performance
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1

Hi,
Im trying to import a Vulkan semaphore for using by CUDA on windows platform, but always get cudaErrorInvalidValue error.

Considering I have already a HANDLE for the Vulkan semaphore object, the Cuda side is at DLL1 as follows:

 void test_createCudaImportSemaphor(HANDLE handle)
{
	cudaExternalSemaphoreHandleDesc externalSemaphoreHandleDesc;
	externalSemaphoreHandleDesc.flags = 0;
	externalSemaphoreHandleDesc.type = cudaExternalSemaphoreHandleTypeOpaqueWin32;
	externalSemaphoreHandleDesc.handle.win32.handle = handle;

	cudaExternalSemaphore_t cudaExternalSemaphore;
	cudaError_t err = cudaImportExternalSemaphore(&cudaExternalSemaphore, &externalSemaphoreHandleDesc);
	////////////////////////////////////////////////
    // err= 1 (cudaErrorInvalidValue )    why ????
    ////////////////////////////////////////////////

	// destory
	err = cudaDestroyExternalSemaphore(cudaExternalSemaphore);
}

The Vulkan side that creates the semaphore exist in DLL2 as follows:

void test_exportVulkanSemphoreToCuda(vk::Device device)
{
	// create semaphore that can be exported (windows platform)
	vk::ExportSemaphoreWin32HandleInfoKHR exportSemaphoreWin32HandleInfoKHR;
	WindowsSecurityAttributes cWinSecurityAttributes; // taken from cuda samples 02_graphics
	exportSemaphoreWin32HandleInfoKHR.pAttributes = &cWinSecurityAttributes;
	exportSemaphoreWin32HandleInfoKHR.dwAccess = DXGI_SHARED_RESOURCE_READ | DXGI_SHARED_RESOURCE_WRITE;

	vk::ExportSemaphoreCreateInfo exportSemaphoreCreateInfo;
	exportSemaphoreCreateInfo.pNext = &exportSemaphoreWin32HandleInfoKHR;
	exportSemaphoreCreateInfo.handleTypes = vk::ExternalSemaphoreHandleTypeFlagBits::eOpaqueWin32;

	vk::SemaphoreCreateInfo semaphoreCreateInfo;
	semaphoreCreateInfo.pNext = &exportSemaphoreCreateInfo;
	vk::UniqueSemaphore upSemaphore = device.createSemaphoreUnique(semaphoreCreateInfo);

	// get semaphore windows handle 
	vk::SemaphoreGetWin32HandleInfoKHR semaphoreGetWin32HandleInfoKHR = {};
	semaphoreGetWin32HandleInfoKHR.semaphore = upSemaphore.get();
	semaphoreGetWin32HandleInfoKHR.handleType = vk::ExternalSemaphoreHandleTypeFlagBits::eOpaqueWin32;
	HANDLE handle = device.getSemaphoreWin32HandleKHR(semaphoreGetWin32HandleInfoKHR);

	test_createCudaImportSemaphor(handle);

	CloseHandle(handle);
}

I can’t figure out what is the problem
Thanks