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Intel Xeon Phi touts 72 cores

Posted: 26 Mar 2015     Print Version  Bookmark and Share

Keywords:Xeon Phi  Knights Landing  on-chip  Omni-Path 

Intel unveiled its next-generation Xeon Phi multi-processor chip, the Knights Landing, which boasts of three times the performance of its predecessor at 3TFLOPS. With a 2D on-chip mesh interconnect, the Xeon Phi Knights Landing pioneers Intel's new Omni-Path off-chip communications.

Until now the Xeon Phi has been mostly used in supercomputers running naturally parallel applications, but many new features in the Knights Landing version may appeal to users running engineering and enterprise workloads. For instance, it is now a stand-alone chip and does not have the need for complex software running on a regular Xeon to supervise it.

Xeon Phi

Xeon Phi (centre) surrounded by pads for Micron Hybrid Memory Cube (stack chips) using special parallel interface making them as fast as on-chip memory. (Source: Intel)

The Xeon Phi Knights Landing will house more than 60 cores (rumoured up to 72) intimately married to a special version of Micron's Hybrid Memory Cubes mounted in-package yielding effectively 16GB of on-chip memory. It has enough in-package memory and off-chip DDR (384GB) to run workloads without adding fancy swapping and caching techniques.

- R. Colin Johnson
  EE Times

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