VISUAL STUDIO 2013：错误 LNK2019：未解析的外部符号 - cuRAND - 随机数生成器

Question

我研究了几个小时，

1. MSDN Microsoft - Linker Tools Error LNK2019
2. How to solve the error LNK2019: unresolved external symbol - function?
3. What is an undefined reference/unresolved external symbol error and how do I fix it?
4. Error LNK2019: unresolved external symbol _wWinMain@16 referenced in function ___tmainCRTStartup

5. How to get rid of this error: "MSVCRTD.lib(crtexe.obj) : error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup"

   但还没有找到解决以下错误的方法，

Error	1	error LNK2019: unresolved external symbol _curandCreateGenerator@8 referenced in function _GPU_RNG	F:\New\Eks\Visual Studio 2013\PEOPLE PROJECTS\RNGTests\CURANDRNGLib\CURANDRNG.cu.obj	CURANDRNGLib
Error	2	error LNK2019: unresolved external symbol _curandCreateGeneratorHost@8 referenced in function _CPU_RNG	F:\New\Eks\Visual Studio 2013\PEOPLE PROJECTS\RNGTests\CURANDRNGLib\CURANDRNG.cu.obj	CURANDRNGLib
Error	3	error LNK2019: unresolved external symbol _curandDestroyGenerator@4 referenced in function _GPU_RNG	F:\New\Eks\Visual Studio 2013\PEOPLE PROJECTS\RNGTests\CURANDRNGLib\CURANDRNG.cu.obj	CURANDRNGLib
Error	4	error LNK2019: unresolved external symbol _curandSetPseudoRandomGeneratorSeed@12 referenced in function _GPU_RNG	F:\New\Eks\Visual Studio 2013\PEOPLE PROJECTS\RNGTests\CURANDRNGLib\CURANDRNG.cu.obj	CURANDRNGLib
Error	5	error LNK2019: unresolved external symbol _curandGenerateUniform@12 referenced in function _GPU_RNG	F:\New\Eks\Visual Studio 2013\PEOPLE PROJECTS\RNGTests\CURANDRNGLib\CURANDRNG.cu.obj	CURANDRNGLib

CURANDRNGLib.cu

#include <cuda.h>
#include <cuda_runtime.h>
#include <curand.h>
#include <curand_kernel.h>

using namespace std;
extern "C" __declspec(dllexport) void __cdecl GPU_RNG(float* , unsigned int , unsigned int);
extern "C" __declspec(dllexport) void __cdecl CPU_RNG(float* , unsigned int , unsigned int);


extern void GPU_RNG(float * h_randomData, unsigned int dataCount, unsigned int mainSeed)
{
	float * d_randomData = 0;

	//allocate device memory
	size_t randomDataSize = dataCount * sizeof(float);
	cudaMalloc((void**)&d_randomData, randomDataSize);

	curandGenerator_t m_prng;
	//Create a new generator
	curandCreateGenerator(&m_prng, CURAND_RNG_PSEUDO_DEFAULT);
	//Set the generator options
	curandSetPseudoRandomGeneratorSeed(m_prng, (unsigned long) mainSeed);
	//Generate random numbers
	curandGenerateUniform(m_prng, d_randomData, dataCount);
	//Copy memory back to the device
	cudaMemcpy(h_randomData, d_randomData, randomDataSize, cudaMemcpyDeviceToHost);
	//Clean
	curandDestroyGenerator(m_prng);
	//free device memory
	cudaFree(d_randomData);
}

extern void CPU_RNG(float * h_randomData, unsigned int dataCount, unsigned int mainSeed)
{
	curandGenerator_t m_prng;
	//Create a new generator
	curandCreateGeneratorHost(&m_prng,CURAND_RNG_PSEUDO_DEFAULT);
	//Set the generator options
	curandSetPseudoRandomGeneratorSeed(m_prng, (unsigned long) mainSeed);
	//Generate random numbers
	curandGenerateUniform(m_prng, h_randomData, dataCount);
	//Clean
	curandDestroyGenerator(m_prng);
}

我应该添加#include 吗？ （我英语不太好）

Answer 1

我猜你可能已经在 Win32 平台上开发了你的代码。 Win32 上只有基本的 CUDA API 支持，但没有 CURAND 库支持。您可以尝试切换到开发 64 位版本。 （项目 -> 属性 -> 更改顶部的平台选项）

Answer 2

您应该链接 curand.lib - 将其添加到链接器 -> 输入 -> 附加依赖项下的属性表中。

这是您打开详细链接器输出的方式：