title: How to limit the number of cores used by the Erlang VM (BEAM)?
body: <p>I'm running experiments on a node with 2 x Quad-Core Xeon E5520 2.2GHz, 24.0GB RAM, and Erlang R15B02 (SMP enabled). I wonder if I can limit the number of cores used by the Erlang VM so that I can temporarily disable some cores and increase the number step by step in order to test scalability.</p>
  <p>I don't have <code>root</code> access on this node. So I'm expecting some method which is either by specifying parameters to <code>erl</code> or by Erlang code.</p>