title: Parallel processing in R 2.11 Windows 64-bit using SNOW not quite working
body: <p>I'm running R 2.11 64-bit on a WinXP64 machine with 8 processors. With R 2.10.1 the following code spawned 6 R processes for parallel processing:</p>
  
  <pre><code>
  require(foreach)
  require(doSNOW)
  cl = makeCluster(6, type='SOCK')
  registerDoSNOW(cl)
  bl2 = foreach(i=icount(length(unqmrno))) %dopar% {
      (Some code here)
  }
  stopCluster(cl)
  </code></pre>
  
  <p>When I run the same code in R 2.11 Win64, the 6 R processes are not spawning, and the code hangs. I'm wondering if this is a problem with the port of SNOW to 2.11-64bit, or if any additional code is required on my part. Thanks</p>
  
  <p>BTW, this works just fine on my multicore machine at home running Ubuntu Karmic 64-bit and R 2.11. Unfortunately I have to work on Win64 at work</p>