问为什么CUDA内核没有在VS 2013中推出CUDA 9.0

EN

#include <stdio.h>
#include "cuda_runtime.h"
#include "device_launch_parameters.h"

__global__ void square(float * d_out, float * d_in)
{
    int idx = threadIdx.x;
    float f = d_in[idx];
    d_out[idx] = 50;
}

int main(int argc, char ** argv)
{
    const int ARRAY_SIZE = 64;
    const int ARRAY_BYTES = ARRAY_SIZE * sizeof(float);

    // generate the input array on the host
    float h_in[ARRAY_SIZE];
    for (int i = 0; i < ARRAY_SIZE; i++)
    {
        h_in[i] = float(i);
    }
    float h_out[ARRAY_SIZE];

    // declare GPU memory pointers
    float * d_in;
    float * d_out;

    // allocate GPU memory
    cudaMalloc((void **) &d_in, ARRAY_BYTES);
    cudaMalloc((void **) &d_out, ARRAY_BYTES);

    // transfer the array to the GPU
   cudaMemcpy(d_in, h_in, ARRAY_BYTES, cudaMemcpyHostToDevice);

    // launch the Kernel
    square << <1, ARRAY_SIZE >> >(d_out, d_in);

    // copy back the result array to the GPU
    cudaMemcpy(h_out, d_out, ARRAY_BYTES, cudaMemcpyDeviceToHost);

    // print out the resulting array
    for (int i = 0; i < ARRAY_SIZE; i++)
    {
        printf("%f", h_out[i]);
        printf(((i % 4) != 3) ? "\t" : "\n");
    }

    // free GPU memory allocation
    cudaFree(d_in);
    cudaFree(d_out);

    getchar();
    return 0;
}