A lot has happened in HPC over the past year. I would say that the speeding up of development of accelerators and the rising number of hybrid CPU+GPU systems are probably the most noteworthy trends we saw in 2012. Over the next year we’re going to see even more use cases for hybrid systems, and I expect to see much wider use in …
" I don’t think ARM will be regarded as a true alternative for HPC until we see 64-bit ARM, which is due sometime in 2014."
The Register says otherwise:-