Networking Requirements Outlook - A New Computing Model for the HL-LHC and DUNE Era (Presentation)
H. B. Newman · TigerPrints (Clemson University) · 2020
▪ Exascale Data for the LHC Experiments ▪ ~1 Exabyte by 2019; to ~50 EB during HL LHC Era ▪ Network Flow: 45-60 Gbytes/sec ▪ 1.6 Exabyte flowed over WLCG in 2018 ▪ Emergence Now of 400G in Hyper-Data Centers, 100 to 200G in Wide Area ▪ 400G in Wide Area by 2021-22 ▪ Network Dilemma: Per technology generation (~10 years) ▪ Capacity at same unit cost: 4X ▪ Bandwidth growth: 35-70X in Internet2, GEANT, ESnet ▪ During LHC Run3 We will likely reach a network limit ▪ Unlike the past: Optical and switch advances are evolutionary Physics Limits by ~HL LHC Start New Levels of Challenge ▪ Global data distribution, processing, access and analysis ▪ Coordinated use of massive but still limited diverse compute, storage and network resources ▪ Coordinated operation and collaboration within and among scientific enterprises ▪ HEP will experience increasing Competition from other data intensive programs ▪ Sky Surveys: LSST, SKA ▪ Next Gen Light Sources ▪ Earth Observation ▪ Genomics Esnet Transatlantic Network Traffic Projections https: