It's been some time since there is a change in the first rank of super computer list on TOP 500, but i think on November, there will be a new champion, called Tianhe-1, a supercomputer from China that will surpass Cray XT5 Jaguar, the current champion. To do this, the Tianhe-1A system covers a square kilometer, weights in at 155-tons and uses 14,336 Intel Xeon CPUs and 7,168 Nvidia Tesla GPUs. It will have 98304 GB of RAM (around 96 TB). Can you imagine how much data can be saved without using any SWAP partition?
I think, with the big amount of funding for R&D, we will see many supercomputer from China will be on the TOP 500 list in the future.
One more thing, it runs on Linux