page_title: POWER9
section_title: IBM Supercomputers
hierarchical_section_title: POWER9 / Systems / IBM Supercomputers
caption_attribution_description: English: IBM POWER9 wafer with TOP500 certificates for Summit &amp; Sierra
context_page_description: POWER9 is a family of superscalar, multithreading, symmetric multiprocessors based on the Power ISA announced in August 2016 at the Hot Chips conference.
  The POWER9-based processors are being manufactured using a 14 nm FinFET process, in 12- and 24-core versions, for scale out and scale up applications, and possibly other variations, since the POWER9 architecture is open for licensing and modification by the OpenPOWER Foundation members.
  The second fastest supercomputer in the world, Summit, is based on POWER9, while also using Nvidia Tesla GPUs as accelerators.
context_section_description: Summit and Sierra –  The United States Department of Energy together with Oak Ridge National Laboratory and Lawrence Livermore National Laboratory contracted IBM and Nvidia to build two supercomputers, the Summit and the Sierra, are based on POWER9 processors coupled with Nvidia's Volta GPUs. These systems are slated to go online in 2017. Sierra is based on IBM's Power Systems AC922 compute node.
  The first racks of Summit were delivered to Oak Ridge National Laboratory on 31 July 2017.
  MareNostrum 4 – One of the three clusters in the emerging technologies block of the fourth MareNostrum supercomputer is a POWER9 cluster with Nvidia Volta GPUs. This cluster is expected to provide more than 1.5 petaflops of computing capacity when installed. The emerging technologies block of the MareNostrum 4 exists to test if new developments might be "suitable for future versions of MareNostrum".
caption: POWER9 wafer with TOP500 certificates for Summit & Sierra
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