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The BlueGene/L Supercomputer

Gyan Bhanot·Dong Chen·Alan Gara·Pavlos Vranas
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Abstract

The architecture of the BlueGene/L massively parallel supercomputer is described. Each computing node consists of a single compute ASIC plus 256 MB of external memory. The compute ASIC integrates two 700 MHz PowerPC 440 integer CPU cores, two 2.8 Gflops floating point units, 4 MB of embedded DRAM as cache, a memory controller for external memory, six 1.4 Gbit/s bi-directional ports for a 3-dimensional torus network connection, three 2.8 Gbit/s bi-directional ports for connecting to a global tree network and a Gigabit Ethernet for I/O. 65,536 of such nodes are connected into a 3-d torus with a geometry of 32x32x64. The total peak performance of the system is 360 Teraflops and the total amount of memory is 16 TeraBytes.

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Gyan Bhanot, Dong Chen, Alan Gara, Pavlos Vranas. 2002-12-17. The BlueGene/L Supercomputer. https://arxiv.org/abs/hep-lat/0212030

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