[gmx-users] error in nvidia cuda installation

[Neda Rafiee]

Dear users,
I am going to install GROMACS 5.1.4 which is enabled for parallelization, so I tried to install Cuda Nvidia as it is suggested in the gromacs website. I am using Linux Mint 18.1 
I tried to download Cuda toolkit from its website but the link seems not to work properly at the present time. Here it is:

http://developer2.download.nvidia.com/compute/cuda/8.0/secure/Prod2/local_installers/cuda-repo-ubuntu1604-8-0-local-ga2_8.0.61-1_amd64.deb?vmYFoBWDG3rPn44_PXesEZzhZKZBfQhZUlE0ejZIsLsGUAyLFN5AVFpzvAECUUPTxrKQY78vMi1MEyMHXyYaoupnSvADVKrj_DDrxr4eeE2OJUgAFzbT4fVBHMQzAAuc_DiJsX1S6JwRlyeOsS4XbS-uHan2fLyrDDCr03z0AnFyffKbewEUrFyrCz57hrLGTe9pTeniMd87kBD4mXqZ9AXr1g

I also tried downloading via " apt-get install nvidia-cuda-toolkit ", as suggested in the link below:
https://askubuntu.com/questions/640577/install-cuda-7-0-on-ubuntu-14-04-2
but after entering " sudo apt-get install nvidia-XXX nvidia-prime ", I got an error indicating "E: Unable to locate package nvidia-XXX "

Anyone knows what should I do?
Thanks.