Looks like MIC seems to be gaining, though nVidia is still in the majority of accelerator based systems. Intel still owns a huge share in this list. How many are ARM based? None, as far as I can tell.
- There are 26 systems with performance greater than a petaflop/s, up from 23 six months ago. - The new No. 1 system, Tianhe-2, and the No. 6 system, Stampede, are using Intel Xeon Phi processors to speed up their computational rate. The No. 2 system, Titan, and the No. 10 system, Tianhe-1A, are using NVIDIA GPUs to accelerate computation. - A total of 54 systems on the list are using accelerator/co-processor technology, down from 62 in November 2012. Thirty-nine of these use NVIDIA chips, three use ATI Radeon, and eleven systems use Intel MIC technology (Xeon Phi). - The number of systems installed in China has now stabilized at 66, with 72 and 68 on the last two lists. As a nation, China now holds the No. 2 position as a user of HPC, ahead of Japan, UK, France, and Germany. Due to Tianhe-2, China has also taken the No. 2 position in the performance share, ahead of Japan. - Intel continues to provide the processors for the largest share (80.4 percent) of TOP500 systems. - Eighty-eight percent of the systems use processors with six or more cores, and 67 percent with eight or more cores. - IBM’s BlueGene/Q is still the most popular system in the TOP10 with four entries, including No. 3, 5, 7, and 8. - The entry level on the list moved up to the 96.6 teraflop/s mark on the Linpack benchmark, compared to 76.5 Tflop/s six months ago. - The last system on the newest list was listed at position 322 in the previous TOP500 just six months ago. - Total combined performance of all 500 systems has grown to 223 Pflop/s, compared to 162 Pflop/s six months ago and 123 Pflop/s one year ago.