结合网上教程之后自己配置Nsight并进行单机和双机调试的过程。32位Win7+VS2008 + CUDA4.0 + Nsight环境，实现对CUDA核函数的调试，可以进入断点观察变量值。-Combining online tutorials and configuration example and my own experience,I succed to make Nsight single and two-machine debugging process available.The environment is 32bit Win7+VS2008+ CUDA4.0+ Nsight , to achieve the CUDA kernel debugging, you can enter breakpoints and observe variable values.