National Weather National Weather Service Service Central Computer System Backup System Brig. Gen. David L. Johnson, USAF (Ret.) Brig. Gen. David L. Johnson, USAF (Ret.) National Oceanic and Atmospheric Administration National Oceanic and Atmospheric Administration Assistant Administrator for Weather Services Assistant Administrator for Weather Services
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National Weather Service Central Computer System Backup System
National Weather Service Central Computer System Backup System. Brig. Gen. David L. Johnson, USAF (Ret.) National Oceanic and Atmospheric Administration Assistant Administrator for Weather Services. Agenda. NWS Overview Central Computer Backup System Description System Milestones - PowerPoint PPT Presentation
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National Weather ServiceNational Weather ServiceCentral Computer System
Backup System
Brig. Gen. David L. Johnson, USAF (Ret.)Brig. Gen. David L. Johnson, USAF (Ret.)National Oceanic and Atmospheric AdministrationNational Oceanic and Atmospheric Administration
Assistant Administrator for Weather ServicesAssistant Administrator for Weather Services
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Agenda
• NWS Overview• Central Computer Backup System Description• System Milestones• System Operational Uses• System Development Uses
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NWS Overview
• Provide climate, water, weather forecasts and warnings to protect life and property and enhance the economy
• Data and products are used by other government agencies, the private sector, the public, and the global community.
13 River 13 River Forecast Forecast CentersCenters
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NWS Overview Facilities
122 Weather Forecast Offices
9NationalCenters
6Regions
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7
8
9
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NWS Overview National Centers for Environmental Prediction
CE
N T RA
L
HydrometeorologicalPrediction Center
Storm PredictionCenter
Aviation WeatherCenter
Tropical PredictionCenter
Ocean PredictionCenter
Climate PredictionCenter
Space EnvironmentCenter
EnvironmentalModelingCenter
PO
ER A T I
ONS
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Research, Development and Technology Infusion
Respond & Feedback
IBM Supercomputer at Gaithersburg, MD Computer Center
Feedback
Distribute
LocalOffices
CentralGuidance
Process
Observe
Products & Forecast Services
NWS Overview
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Research, Development and Technology Infusion
Respond & Feedback
IBM Supercomputer Backup at Fairmont, WV
Feedback
Distribute
LocalOffices
CentralGuidanceProcess
Observe
Products & Forecast Services
NWS OverviewCritical backup
of “process” step
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System Description
• Large high performance computing system that mirrors and backs up a primary system in Gaithersburg, MD
• Comprised of IBM equipment 176 Power-4 Regatta H+ nodes
160 compute nodes, 16 server nodes 8 processors per node (1.7 Gigahertz clock speed) 16 Gigabyte (GB) memory per node
Copper based Colony interconnect
22.5 Terabyte disk storage
1 Petabyte tape storage
Theoretical peak power 8.7 Teraflops
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• In top 10 worldwide for weather supercomputers• Uses scalar computing model comprised of a large
number of commodity processors• Balanced system in terms of node, interconnect &
input/output performance
Disk I/O – 1.3 GB/s
Node/Processor – 4.0 GB/s
Interconnect– 1.5 GB/sGB/s
System Description
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System Milestones
Milestone Date
System Installation Complete 8/25/04 – completed
Acceptance Testing Complete 9/22/04 – completed
System Customization Complete 10/6/04 – in progress
Production Readiness Test Complete 12/22/04
Full Operational Capability Reached 12/22/04
CCS Backup Activated 1/18/05
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System Operational Uses
• Executes large scale computer models to predict the state of the atmosphere from hours to months in advance Outputofmodelsiscalledmodelguidance OvertheU.S.,thesemodelsdividetheatmosphereintoathreedimensionalgridcomprisedof12kmsquares,splitinto60levels,fromthesurfaceuptoabout10,000meters