A Distributed C Compiler System on MapReduce: Mrcc
Neat idea: mrcc is an open source compilation system that uses MapReduce (such as Hadoop and MRlite) to distribute C code compilation across the servers in the cloud computing platform.

There’s a paper related to this project written by Zhiqiang Ma Lin Gu that you can read or download after the break.
Original title and link: A Distributed C Compiler System on MapReduce: Mrcc (©myNoSQL)