[ontologiae]

I wonder if this very clever approach is interesting in the energy consumption perspective. In this work (http://hpc.pnl.gov/modsim/2014/Presentations/Kestor.pdf ) the author shows (slide 11 ) that it cost 100 times more energy to move data from memory to register than to move data from L1 cache. So, this kind of mechanism could hugely improve the amount of data that could be stored in L1/L2/L3 cache, but what could be the energy cost of compression/decompression step ?