title: GitLab CI: Is it possible to run parallel jobs in different runner
body: <p>I'm looking for a way to run parallels jobs in different runners. I have several powerful runners set up for GitLab CI. In general, it's ok to run jobs on the same runner because they're executed in Docker container.</p>
  <p>However, now I have a Pipeline that jobs are executed in parallel and each job consumes lots of CPU and Mem.(it's by design, not an issue). If it's unlucky that GitLab CI schedules those jobs to the same runner, job fails.</p>
  <p>And, I want this limitation applies to this project ONLY, as my runners have 30+ CPU and 120GB+ Memory.</p>
  <p>Thanks in advance.</p>