在linux ubnutu14.0.4版本下面安装GPGPU-sim，按照GPGPU-SIM安装教程,再安装第三步的的时候，出现以下错误
/bin/sh: 1: /bin/nvcc:not found
ERROR *** run 'source setup_environment' before 'make'; please see README.
make: *** [check_setup_environment] Error 101

nvcc不是默认在/usr/local/cuda-7.5/bin下吗……