title: compare NumPy vs. NumPy+MKL performance
body: <p>So, I compiled NumPy from source, linking to MKL. Now I want to compare NumPy's performance with and without MKL. Is there any way I can "tell" NumPy not to use MKL, so I can produce the benchmarks? For instance, with numExpr we can do <code>numexpr.use_vml = False</code>. Is there anything similar for NumPy? I really don't wanna have to compile NumPy without MKL just for this.</p>
  
  <p>(Ubuntu 12.04, Python 2.7.3, NumPy 1.8, Intel Composer XE 2013 SP1)</p>