tmux

tmux is a useful tool to keep long time tasks (a.e. magma, matlab) running on a computer without keeping your session online during the whole computation:

Session

• Initial Start:
  • open a console and connect through SSH to the machine you want to run the task on (most likely: compute.math.uzh.ch) by typing the host name: [user@tlX] compute and enter your password (there is a script called 'compute' which does nothing else than 'ssh compute' - in our evironment it's not necessary to type 'ssh compute')
  • type tmux
• Detach:
  • to detach from screen ("send it to background"), press Ctrl + b d
  • you now can log off from the terminal and your task will keep running
• Attach again:
  • if you want to check progress of your computations, log into the machine where your task is running like you did before
  • Show list of sessions: tmux ls
  • use tmux attach -t <nr> to connect to your task.

Screen splitting

• Split Horizontally: Press Ctrl+b then " - This creates a new pane below the current one.
• Split Vertically: Press Ctrl+b then %
• Close open pane: Ctrl+d
• Navigate between panes using Ctrl+b and the arrow keys