title: how do we choose --nthreads and --nprocs per worker in dask distributed?
body: <p>How do we choose <code>--nthreads</code> and <code>--nprocs</code> per worker in Dask distributed? I have 3 workers, with 4 cores and one thread per core on 2 workers and 8 cores on 1 worker (according to the output of <code>lscpu</code> Linux command on each worker).</p>