MIC_USE_2MB_BUFFERS after MPSS Gold Update 1

MIC_USE_2MB_BUFFERS after MPSS Gold Update 1

According to this document: http://software.intel.com/en-us/articles/optimizing-memory-bandwidth-on-stream-triad , "This update [KNC_gold_update_1-2.1.4982-15] has the “Transparent Huge pages” support which automatically promotes 4K pages to 2MB pages for stack and heap allocated data".

Does it mean that the programmer needs not worry about 2MB pages anymore? How does MPSS decide when to promote 4K pages to 2MB pages? Does the environment variable MIC_USE_2MB_BUFFERS still have an effect?

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