GPGPU OpenCL中如何使用結構體數據

OpenCL編程中可以使用結構體，只需要在核函數kernel中提供同樣的結構體申明就可以啦。

如果在主函數中定義了結構體：

1 typedef struct studentNode{

2     int age;

3     float height;

4 }student;

主函數中定義數據，並傳輸給OpenCL kernel：

student *stu_input=(student*)malloc(sizeof(studentNode));
    stu_input->age=25;
    stu_input->height=1.8l;
    student *stu_output=(student*)malloc(sizeof(studentNode));
    
    cl_mem inputBuffer = clCreateBuffer(context, CL_MEM_READ_ONLY|CL_MEM_COPY_HOST_PTR, sizeof(studentNode),(void *)stu_input, NULL);
    cl_mem outputBuffer = clCreateBuffer(context, CL_MEM_WRITE_ONLY ,sizeof(studentNode), NULL, NULL);
    
    cl_kernel kernel = clCreateKernel(program,"structTest", NULL);
    
    status = clSetKernelArg(kernel, 0, sizeof(cl_mem), (void *)&inputBuffer);
    status = clSetKernelArg(kernel, 1, sizeof(cl_mem), (void *)&outputBuffer);