相关疑难解决方法(0)

我正在关注这里的教程:http://opencl.codeplex.com/wikipage？title = OpenCL%20Tutorials%20-%201

他们列出的内核是这个,它计算两个数字的总和并将其存储在输出变量中:

__kernel void vector_add_gpu (__global const float* src_a,
                     __global const float* src_b,
                     __global float* res,
           const int num)
{
   /* get_global_id(0) returns the ID of the thread in execution.
   As many threads are launched at the same time, executing the same kernel,
   each one will receive a different ID, and consequently perform a different computation.*/
   const int idx = get_global_id(0);

   /* Now each work-item asks itself: "is my ID inside the vector's range?"
   If …

我正在开发一个在Fermi卡上运行的CUDA 4.0应用程序.根据规范,Fermi具有Compute Capability 2.0,因此应该支持非内联函数调用.

我在一个不同的obj文件中用nvcc 4.0编译我的每个类.然后,我用g ++ - 4.4将它们全部链接起来.

请考虑以下代码:

[文件A.cuh]

#include <cuda_runtime.h>

struct A
{
    __device__ __host__ void functionA();
};

[文件B.cuh]

#include <cuda_runtime.h>

struct B
{
    __device__ __host__ void functionB();
};

[File A.cu]

#include "A.cuh"
#include "B.cuh"

void A::functionA()
{
    B b;
    b.functionB();
}

试图编译A.cu与nvcc -o A.o -c A.cu -arch=sm_20输出Error: External calls are not supported (found non-inlined call to _ZN1B9functionBEv).

我一定做错了什么,但是什么？