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UID:submissions.supercomputing.org_SC20_sess143_pap344@linklings.com
SUMMARY:Architecture and Performance Studies of 3D-Hyper-FleX-LION for Rec
 onfigurable All-to-All HPC Networks
DESCRIPTION:Paper\n\nArchitecture and Performance Studies of 3D-Hyper-FleX
 -LION for Reconfigurable All-to-All HPC Networks\n\nLiu, Proietti, Faribor
 z, Fotouhi, Xiao...\n\nWhile the Fat-Tree network topology represents the 
 dominant state-of-art solution for large-scale HPC networks, its scalabili
 ty in terms of power, latency, complexity and cost is significantly challe
 nged by the ever-increasing communication bandwidth among tens of thousand
 s of heterogeneous computing nodes. We propose 3D-Hyper-FleX-LION, a flat 
 hybrid electronic-photonic interconnect network that leverages the multi-c
 hannel nature of modern multi-terabit switch ASICs (with 100 Gb/s granular
 ity) and a reconfigurable all-to-all photonic fabric called Flex-LIONS. Co
 mpared to a Fat-Tree network interconnecting the same number of nodes and 
 with the same oversubscription ratio, the proposed 3D-Hyper-FleX-LION offe
 rs a 20% smaller diameter, 3x lower power consumption, 10x fewer cable con
 nections, and a 4x reduction in the number of transceivers. When bandwidth
  reconfiguration capabilities of Flex-LIONS are exploited for non-uniform 
 traffic workloads, simulation results indicate that 3D-Hyper-FleX-LION can
  achieve up to 4x improvement in energy efficiency for synthetic traffic w
 orkloads with high locality compared to Fat-Tree.\n\nTag: Algorithms, Netw
 orks, Reconfigurable Computing, Routing\n\nRegistration Category: Tech Pro
 gram Reg Pass
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