You can have remote workers with parallel (not sure if you can do that with xarg...

You can have remote workers with parallel (not sure if you can do that with xargs or not).

    parallel --progress --wd '.' -S '4/fourworkers@blehworker.org,8/eightworkers@eightworkers.org,2/:'  "./complicated_command --param1={1} --param2={2} ::: $(some_shellcommand_to_generate_param1_values.sh) ::: $(some_shellcommand_to_generate_param2_values.sh)

It's very flexible, become my go-to for speeding up parallelizable work. Next step up would be Celery or Spark or something.