Hello , still the same! echo $PATH and sudo echo $PATH gives -> /usr/local/cuda/bin:/usr/local/bin:/usr/bin:/bin:/opt/bin:/usr/x86_64-pc-linux-gnu/gcc-bin/4.6.2:/usr/games/bin:CUDA_ROOT:CUDA_ROOT sudo su and then echo $PATH gives -> /sbin:/bin:/usr/sbin:/usr/bin There is no CUDA_ROOT. Thank you. -- View this message in context: http://pycuda.2962900.n2.nabble.com/nvcc-not-in-path-tp7574709p7574721.html Sent from the PyCuda mailing list archive at Nabble.com. _______________________________________________ PyCUDA mailing list PyCUDA(a)tiker.net http://lists.tiker.net/listinfo/pycuda