Taking a look at your logs, we're not detecting your I7 as a compute device, checking the performance data I have here, you should get a large boost in performance, by using that instead.
To add support for your processor as a compute device, you can install AMD's APP (Accelerated Parallel Processing), which works great on Intel processors.
I'd recommend 2.9.1, which is the current stable version.
http://developer.amd.com/tools-and-sdks/opencl-zone/amd-accelerated-parallel-processing-app-sdk/If you could, please run a performance test and send in a feedback message with the note, Atten : C7 in the comments section. Before the installation, and after, if you don't mind! It would be good to have some concrete comparative data.
Thanks!