0
當我嘗試使用可重定位設備代碼啓用(-rdc = true)來編譯CUDA時,我遇到錯誤。我使用Visual Studio 2013作爲CUDA 7.5的編譯器。下面是一個顯示錯誤的小例子。爲了澄清,當-rdc = false時,下面的代碼運行良好,但是當設置爲true時,錯誤顯示出來。使用CUDA獨立編譯導致推力錯誤
錯誤簡單地說:CUDA錯誤11 [\ CUDA \詳細\幼獸\設備\調度/ device_radix_sort_dispatch.cuh,687]:無效參數
然後我發現this,它說:
When invoked with primitive data types, thrust::sort, thrust::sort_by_key,thrust::stable_sort, thrust::stable_sort_by_key may fail to link in some cases with nvcc -rdc=true.
是否有一些解決方法允許單獨編譯?
main.cpp中:
#include <stdio.h>
#include <vector>
#include "cuda_runtime.h"
#include "RadixSort.h"
typedef unsigned int uint;
typedef unsigned __int64 uint64;
int main()
{
RadixSort sorter;
uint n = 10;
std::vector<uint64> test(n);
for (uint i = 0; i < n; i++)
test[i] = i + 1;
uint64 * d_array;
uint64 size = n * sizeof(uint64);
cudaMalloc(&d_array, size);
cudaMemcpy(d_array, test.data(), size, cudaMemcpyHostToDevice);
try
{
sorter.Sort(d_array, n);
}
catch (const std::exception & ex)
{
printf("%s\n", ex.what());
}
}
RadixSort.h:
#pragma once
typedef unsigned int uint;
typedef unsigned __int64 uint64;
class RadixSort
{
public:
RadixSort() {}
~RadixSort() {}
void Sort(uint64 * input, const uint n);
};
RadixSort.cu:
#include "RadixSort.h"
#include <thrust/device_vector.h>
#include <thrust/device_ptr.h>
#include <thrust/sort.h>
void RadixSort::Sort(uint64 * input, const uint n)
{
thrust::device_ptr<uint64> d_input = thrust::device_pointer_cast(input);
thrust::stable_sort(d_input, d_input + n);
cudaDeviceSynchronize();
}
關於此問題:「是否有一些解決方法可以單獨編譯?您正在運行哪個GPU? –
目前的GTX 760. – RobbinMarcus
嘗試編譯架構設置爲匹配您的GTX 760,我相信應該是cc3.0。 –