=Master Branch=
git clone https://github.com/Nek5000/Nek5000.git -b master
export PATH=$HOME/Nek5000/bin:$PATH
cd ~/Nek5000/tools
#modify maketools file so all tools compile.
sed -i s/#BIGMEM=\"true\"/BIGMEM=\"true\"/g ./maketools
./maketools genmap
cd ~/Nek5000/run; cp -r ~/Nek5000/short_tests/ethier .
=Ubuntu 18.04=
```
cd ~/
wget https://github.com/Nek5000/Nek5000/releases/download/v17.0/Nek5000-v17.0.tar.gz
tar xvfz Nek5000-v17.0.tar.gz
cd Nek5000/
sudo apt install make cmake build-essential \
gfortran openmpi-bin libx11-dev libxt-dev
cd tools
./maketools all
```