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The IBM Blue Gene®/Q supercomputer is designed for highly efficient computing for problems dominated by floating-point computation. Its target mean time between failures for a 96-rack, 98,304-node system is three days, allowing tasks requiring computation for many days to run at scale, with little time wasted on checkpoint-restart operations. This paper describes various elements of the compute application-specific integrated circuit and the system package, and how they contribute to low power consumption and high reliability.
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