Which file translates the program into a map reduce plan

[Abdollahian Noghabi, Shadi]

Hi,

I want to find which file in pig converts the physical plan into the map reduce 
plan. Actually, I want to get some information out of the map reduce plan, but 
I cannot find in which file it is located. I would be more than happy if anyone 
could guide me where is the directory and the file.

Thanks,
Shadi