I recently presented at EuroSys'12 our work at EPFL on a Distributed Transactional Memory system tailored for non-coherent many-cores. The title of the paper is "TM2C: a Software Transactional Memory for Many-Cores". Naturally, the SCC was the target platrform for this work.
The paper discusses in details the design of TM2C and our experiences during this work. You can find the paper here: http://dl.acm.org/citation.cfm?id=2168872&dl=ACM&coll=DL.
If someone needs more details about this work, feel free to contact me.