小编mar*_*cus的帖子

我想将一个字符串传递给我的GPU并从GPU中取回来打印它.这是为了理解目的 - 我知道,这个想法听起来毫无意义.

我试过了:

OpenCL的:

__kernel void same_in_same_out_char(__global uchar * out, __constant uchar * in){
  for (unsigned int ui=0; ui<3; ui++) out[ui]=in[ui];
}

C++:

#define __CL_ENABLE_EXCEPTIONS

#include <fstream>
#include <iostream>
#include <iterator>
#include <CL/cl.hpp>
#include <CL/opencl.h>


using namespace std;
int main () {

    vector<cl::Platform> platforms;
    vector<cl::Device> devices;
    vector<cl::Kernel> kernels;

    try {

        // create platform
        cl::Platform::get(&platforms);
        platforms[0].getDevices(CL_DEVICE_TYPE_GPU, &devices);

        // create context
        cl::Context context(devices);

        // create command queue
        cl::CommandQueue queue(context, devices[0]);

        // load opencl source
        ifstream cl_file("inout.cl");
        string cl_string(istreambuf_iterator<char>(cl_file), (istreambuf_iterator<char>()));
        cl::Program::Sources source(1, …