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China start-up bares 64-core ARM-based server chip

Posted: 26 Aug 2015     Print Version  Bookmark and Share

Keywords:28nm  ARM-based server  ARMv8 

Oracle integrates Infiniband

Oracle announced at Hot Chips a new server processor, its first to integrate Infiniband. The Sonoma chip is the first in a new family and also includes several features to accelerate Oracle's database and other software.

Sonoma is a 20nm chip that includes eight M7-class Sparc cores, supporting up to eight threads per core. It packs two DDR4 memory controllers supporting up to a TByte of memory per socket, enabling 77GB/s peak memory bandwidth.

The chip also sports a PCI Express Gen 3 controller. It also includes four 16Gbit/s coherent links to chain processors together.

The integrated Infiniband takes up about 20 per cent of the chip's die area. It implements a two 56G Infiniband links and supports virtualisation, enabling 32 virtual independent Infiniband adapters.

Oracle's Sonoma

Nearly 20 per cent of Oracle's Sonoma is devoted to Infiniband.

Oracle designed the Infiniband block internally so it could optimise it for its uses and own the intellectual property, said a design team member. The chip has several potential uses given Oracle uses Infiniband in a variety of existing systems for clustering, storage and other applications.

Sonoma includes four database accelerator blocks, optimised for Oracle's software. The chip also puts a small metadata block in addresses, which it can use as a comparator to prevent buffer memory overruns and prevent malware attacks such as HeartBleed.

- Rick Merritt
  EE Times U.S.


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