✎ tutorials:oar_tips []

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.
====== OAR-related tools ======
===== FZF aliases =====
OAR uses numeric ids for jobs and retype them every time can be really annoying. In case if you have meaningful names, there is a way to quickly select you job for whatever you need. To use those aliases you need installed FZF: [[https://github.com/junegunn/fzf]]. In its wiki ([[https://github.com/junegunn/fzf/wiki/Examples]]) there are a lot of exciting examples how to use fzf with shell, vim and git. You need to put snippets below in your .bashrc (or .zshrc) and restart your shell.

==== Quickly connect to a passive job ====

    jsh() {
      myhost="$(hostname)"
      if [ `hostname -s` = 'edgar' -o `hostname -s` = 'access2-cp' ]; then
        local stats jid
        stats=$(oarstat --user=$USER --format 2 | tail -n +3 | grep -v '^[0-9]\+\s\+W') &&
        jid=$(echo "$stats" | tac | fzf) &&
        oarsub -C $(echo "$jid" | awk '{print $1}')
      else
        echo -e "Run it on edgar\n\n"
        ssh -t edgar jsh
      fi
    }


A few explanations why it works. ''oarstat'' command lists all jobs for a given user, ''tail'' removes the header, ''grep'' removes all waiting jobs (you can't connect to them yet), ''tac'' reverses the order of lines. ''fzf'' is a fuzzy searcher, it outputs the line you chose in stdout. It goes to ''awk'' that cuts the job_id and passes it to ''oarsub''. So to use it just type ''jsh'' and type some words from the name of job you are looking for or use Ctrl-j/Ctrl-k to go down/up. When you are done, press enter and enjoy your ssh tunnel.

==== Quickly open a log file ====

  jlog() {
  if [ `hostname -s` = 'edgar' ]; then
      local stats jid
      stats=$(oarstat --user=$USER --format 2 | tail -n +3 | grep -v '^[0-9]\+\s\+W') &&
      jid=$(echo "$stats" | tac | fzf) &&
      jid=$(echo "$jid" | awk '{print $1}')
      less +GF $HOME/<your_log_dir>/*.$jid.stderr
  else
      echo "Run it on edgar\n\n"
      ssh edgar
  fi
  }

The idea is the same essentially, just instead of ''oarsub'', it calls ''less'' pager. You need to put the path to your log directory and probably change ''stderr'' to ''stdout'' (if you want). ''less'' is automatically jumps to the end of file (''+G'' option) and turns into continuous reloading mode (''F'' option).

==== Kill your jobs by names ====

  jkill() {
  if [ `hostname -s` = 'edgar' ]; then
      local stats jid
      stats=$(oarstat --user=$USER --format 2 | tail -n +3) &&
      jid=$(echo "$stats" | tac | fzf -m) &&
      oardel $(echo "$jid" | awk '{print $1}' | tr '\n' ' ')
  else
      echo "Run it on edgar\n\n"
      ssh edgar
  fi
  }
  
Essentially the same except we don't filter out waiting jobs (hence no ''grep''), ''fzf'' runs in multi-choice mode (''-m'' flag), you can choose a few jobs using tab and to concatenate job ids into one line we use ''tr''.
User Tools

Site Tools

Page Tools
