title: rfsrc() command in randomForestSRC package R not using multi core functionality
body: <p>I am using R (for Windows 7, 32 -bit) for doing text classification using <code>randomForests</code>. Due to large dataset, I looked up the Internet for speeding up model-building and came across <code>randomForestSRC</code> package. </p>
  
  <p>I have followed all the steps in the installation manual for the package, yet during execution of <code>rfsrc()</code> command, only one of the logical cores is used by R (same as <code>randomforest()</code>), the maximum cpu utilization being 25%.
  I have used following command as per the manual. </p>
  
  <pre><code>options(mc.cores=detectcores()-1, rf.cores = detectcores()-1)
  </code></pre>
  
  <p>I am using Windows 7 Professional 32 bit Service Pack 1, on Intel i3 2120 CPU with 4 logical cores. Could anyone throw some light on what I could be missing? Any other efficient way to use <code>randomForest</code> with multicore utilization will also be helpful!</p>