cuda新手求问，用VS编译的一个小问题

[DSQ_17]

	cublasHandle_t cnpHandle;
	cublasStatus_t status;
	float Sigma_W[d*d];

	for (int iters = 0; iters <numIter; iters ++)
	{
		if (iters/50 == 0)
		{
			cout<< iters <<endl;
		}

		status = cublasCreate(&cnpHandle);
		if (status != CUBLAS_STATUS_SUCCESS)
		{
			//*returnValue = status;
			cout<<"1"<<endl;
			return false;
		}

		memset(Sigma_W,0,d*d*sizeof(float));
		int k = 0;
		for (int i = 0; i<d; i++)
		{
			for( int j=0; j<d; j++)
			{
				if (i==j)
				{
					Sigma_W[k] = Zd[i];
				}
				k++;
			}
		}
		float b = 1;
		status = cublasSgemm(cnpHandle, CUBLAS_OP_N, CUBLAS_OP_T, d, d, N, &E_v, X,d , X,d,&b,Sigma_W,d);
		cublasDestroy(cnpHandle);
		cudaThreadSynchronize();

		status = cublasCreate(&cnpHandle);
		if (status != CUBLAS_STATUS_SUCCESS)
		{
			cout<<"2"<<endl;
			return false;
		}
		float *Sigma_W_inv = (float*)malloc(d*d);
		int info;
		const float *Sigma_Ws[] = {Sigma_W};
		float *Sigma_W_invs[] = {Sigma_W_inv};
		status = cublasSmatinvBatched(cnpHandle, 
			d, 
			Sigma_Ws, 
			d, 
			Sigma_W_invs, 
			d, 
			&info,
			1
			);
		cublasDestroy(cnpHandle);
		cudaThreadSynchronize();

		status = cublasCreate(&cnpHandle);
		if (status != CUBLAS_STATUS_SUCCESS)
		{
			//*returnValue = status;
			cout<<"3"<<endl;
			return false;
		}
		status = cublasScopy(cnpHandle, d*d, Sigma_W_inv,1,Sigma_W,1);
		cublasDestroy(cnpHandle);
		cudaThreadSynchronize();

		float *E_W_before = (float*)malloc(d*sizeof(float));
		status = cublasCreate(&cnpHandle);
		if (status != CUBLAS_STATUS_SUCCESS)
		{
			cout<<"4"<<endl;
			//*returnValue = status;
			return false;
		}
		status = cublasScopy(cnpHandle, d, W, 1, E_W_before, 1);
		if (status != CUBLAS_STATUS_SUCCESS)
		{
			cout<<"6"<<endl;
			//*returnValue = status;
			return false;
		}
		cublasDestroy(cnpHandle);
		cudaThreadSynchronize();

		status = cublasCreate(&cnpHandle);
		if (status != CUBLAS_STATUS_SUCCESS)
		{
			cout<<"5"<<endl;
			//*returnValue = status;
			return false;
		}
		cublasDestroy(cnpHandle);
		cudaThreadSynchronize();

麻烦帮忙看一下。。之前没用CudaThreadSynchronize(),结果一会儿出4一会儿出5.什么问题啊，为什么状态是不成功啊。。谢谢！！