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Advanced LIGO Data & Computing Material for the breakout session NSF review of the Advanced LIGO proposal. Albert Lazzarini Caltech, 11 - 13 June 2003. Outline. Data and Computing Subsystem (DAC) Definition, functions Conceptual Design Heritage from LIGO I
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Advanced LIGOData & ComputingMaterial for the breakout sessionNSF review of the Advanced LIGO proposal Albert Lazzarini Caltech, 11 - 13 June 2003
Outline • Data and Computing Subsystem (DAC) • Definition, functions • Conceptual Design • Heritage from LIGO I • Technical Challenges, Opportunities • Schedule & Plans • Cost estimates • Team LIGO Laboratory at Caltech
DAC Definition & functions • Data and Computing subsystem • Distributed multi-laboratory site infrastructure to manage data, perform dedicated pipeline-based analysis of data • Caltech - main archive, computing capacity -- “Tier 1 Center” • MIT - Tier 2 center capacity • Hanford, Livingston Observatories - Dedicated resources during science operations, available as effective additional Tier 2 centers between runs • Functionality - Observatory sites • Data storage and archival system • Computing capacity for executing near-real time astrophysics searches LIGO Laboratory at Caltech
DAC Definition & functions • Functionality - • Caltech • Main permanent archive and data storage facility for LIGO Laboratory, collaboration • Computing capacity for executing off-line astrophysics searches • Distributes data to collaboration Tier 2 sites (UW Milwaukee, Penn State) • First stage of data reduction from full raw volume generated at observatories • Center of infrastructure SW development • MIT • Laboratory-managed Tier 2 center for MIT Laboratory staff, collaboration • Reduced data set for most recent runs avaialble • Computing capacity for executing off-line astrophysics searches LIGO Laboratory at Caltech
Conceptual Design LIGO Laboratory at Caltech
Heritage from LIGO I LIGO Laboratory at Caltech
Technical Challenges, Opportunities LIGO Laboratory at Caltech
Schedule & Plans LIGO Laboratory at Caltech
Schedule & Plans LIGO Laboratory at Caltech
Cost estimates • CPUs -- $5,633k • Compute clusters -- $4,506k • Servers -- $1,127k • Mass Storage -- $662k • Tape archive -- $504k • Disk caches -- $158k • Networking -- $414k • Fibre channel -- $154k • Fast (10Gbps+) ethernet -- $260k Taxes, shipping, misc. -- $861k LIGO Laboratory at Caltech
Team • Senior LIGO Laboratory staff & professional programmers will work on Advanced LIGO while providing operations support for existing systems. • Hire additional programmers where needed • Estimated manpower dedicated to Adv. LIGO development • Scientists: 2.33 FTEs • Anderson, Blackburn, Lazzarini, • Postdoctoral scholar • SW engineering: 2.5 FTEs -- Existing: 1.5 FTEs; New for Adv. LIGO 1 FTE • LIGO staff -- Maros • Professional contractors • Systems engineers: 2.2 FTEs -- Existing: 1.2 FTEs; New for Adv. LIGO 1 FTE • Professional contractors LIGO Laboratory at Caltech