Reference Work Entry

Encyclopedia of Parallel Computing

pp 900-907

IBM Power Architecture

  • Tejas S. KarkhanisAffiliated withIBM T.J. Watson Research Center
  • , José E. MoreiraAffiliated withIBM T.J. Watson Research Center

Synonyms

IBM power; IBM powerPC

Definition

The IBM Power architecture is an instruction set architecture (ISA) implemented by a variety of processors from IBM and other vendors, including Power7, IBM’s latest server processor. The IBM Power architecture is designed to exploit parallelism at the instruction-, data-, and thread-level.

Discussion

Introduction

IBM’s Power ISATM is an instruction set architecture designed to expose and exploit parallelism in a wide range of applications, from embedded computing to high-end scientific computing to traditional transaction processing. Processors implementing the Power ISA have been used to create several notable parallel computing systems, including the IBM RS/6000 SP, the Blue Gene family of computers, the Deep Blue chess playing machine, the PERCS system, the Sony Playstation 3 game console, and the Watson system that competed in the popular television show Jeopardy!

Power ISA covers both 32-bit and 64-bit variants and, as of its ...

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