In all, 54 of the 500 supercomputers on the list use coprocessors or GPU accelerators. Eleven use Xeon Phi coprocessors, while 39 use GPU accelerators from Nvidia and three use AMD's ATI Radeon GPU accelerators.
Intel is expanding its current crop of 22-nanometer Xeon Phi coprocessors beyond the 5100 family—which was introduced in November 2012—with the 7100 product line that offers the best performance and most memory, and the value-focused 3100 family. The 7100 coprocessors, announced at the ISC June 17, include 61 cores at speeds of 1.23GHz, support for 16GB of memory and more than 1.2 teraflops of performance. The 3100 line features 57 cores clocked at 1.1GHz and 1 teraflop of performance.
A new coprocessor for the 5100 family—the 5120D—is optimized for high-density environments.
Partners like supercomputer maker Cray and systems maker SuperMicro announced support for the new Xeon Phi offerings.
On the horizon is Knights Landing, a Xeon Phi offering that will be made via Intel's 14nm manufacturing process and include the vendor's 3D Tri-Gate transistor architecture. In addition, it will differ from the first round of coprocessors by being able to be used as either a coprocessor or as a primary processor, according to Hazra.
"It is also a standard CPU," he said.
Organizations can either use it as a PCIe card-based coprocessor in the same fashion the Xeon Phi currently is used, with the base processor offloading jobs to it, or as a traditional processor installed directly onto the motherboard socket. In that role, it will function as any other CPU while also handling the job of the coprocessor, and will help drive greater compute density, energy efficiency and performance per watt, Hazra said.
Intel also will offer integrated memory on Knights Landing, which will increase memory bandwidth.
Hazra declined to give many details about Knights Landing, and would not say when the product would be released.