OpenCL SVM Functionality on Core-i7-6700

Hello,

I am using OpenCL 2.0 on a 6700 processor, and I am wondering why it does not support SVM Fine Grain Buffer, it says it only works with Course grain. Mainly I am looking for a way to have cross-device atomics which according to this article is not supported https://software.intel.com/en-us/articles/opencl-20-shared-virtual-memor...

Are there current devices that support Fine Grain Buffer and/or cross device atomics? Any suggestions on how to implement this?

Thanks,

Dan