unable to run sample code from intel

I have a Xeon Phi 7210 processor box, and trying to test OpenCl performance there. Got problem running running a simple code from intel's website: https://software.intel.com/en-us/intel-opencl-support/code-samples 

I have tried the following two using  opencl-1.2-6.4.0.25  opencl-1.2-sdk-6.2.0.1761:

 OpenCL 1.2 samples for Linux:

• Bitonic Sorting
• General Matrix Multiply Sample
  The programs are able to compile, but fails in execution: 

  $ ./BitonicSort 

  Platforms (1):

      [0] Intel(R) OpenCL [Selected]

  Devices (1):

      [0] Intel(R) Xeon Phi(TM) CPU 7210 @ 1.30GHz [Selected]

  [ ERROR ] Sample application specific error: OpenCL error CL_DEVICE_NOT_AVAILABLE happened in file ../common/oclobject.cpp at line 447.

   

Can anyone help me figure out what I should do to let it run?   

Thanks and appreciate all your input!