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LQCD Computing Project Overview

LQCD Computing Project Overview. Chip Watson LQCD Computing Review Boston, May 24-25, 2005. Outline. High Level Scope of the Project Context (related work) Mapping of topics to today’s schedule. Project Scope. High Level View: Deployment of new resources Operations of resources.

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LQCD Computing Project Overview

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  1. LQCD Computing Project Overview Chip Watson LQCD Computing Review Boston, May 24-25, 2005

  2. Outline • High Level Scope of the Project • Context (related work) • Mapping of topics to today’s schedule

  3. Project Scope High Level View: • Deployment of new resources • Operations of resources

  4. Project Scope (1) • Deployment • Annual installation of increasing computing capacity, matching the needs of increasingly challenging science problems • Aggregate capacity after 4 years of this project: ~18+ TFlops (double precision, sustained, average of key algorithms) • Each year, we will select the best platform for the planned physics • Clusters are almost certain to be optimal in 2006 • Clusters are most likely to be optimal throughout the next 4 years, but we will track alternatives

  5. Project Scope (2) • Operations • Operate at three sites: BNL, FNAL, JLab • Operate as a metafacility • Operate multiple generations of new machines (an aggregate of ~12 TFlops new in this investment) • Operate the existing dedicated USQCD machines (~6 TFlops) as part of this metafacility

  6. LQCD Capacity Growth $/MF $M

  7. Budget Breakdown

  8. Project Context The following projects and funding sources significantly effect the current project: • LQCD SciDAC(HEP, NP, ASCR for computer science) • Base contributions(HEP, NP) • QCDOC at BNL(HEP, NP, ASCR funding) • FNAL cluster upgrade(HEP) • ILDG – International Lattice Data Grid

  9. Project Context (1) • LQCD SciDAC Project National Computational Infrastructure for Lattice Gauge Theory Scope: • Computing R&D (hardware platforms & software) • API standardization, software implementation • Performance optimization involving both physicists and computer scientists (2x gain on DWF algorithm!) • Prototype clusters: platform evaluations & software testbeds Impact of SciDAC on this project: • Lowers risk by reducing platform (node & network) uncertainty • Increases platform independence, code (& user) portability

  10. Project Context (2) • Ongoing base HEP and NP programs at the 3 labs • leveraged staffing and hardware (contributions) • leveraged computing infrastructure (networking, tertiary storage, security, account management, ...) • BNL QCDOC supercomputer, 4.2 TFlops (FY04-5) (will initially constitute >50% of total US LQCD capacity) • FNAL cluster upgrade (FY05) (second largest USQCD resource) • International Lattice Data Grid (ILDG) (significantly leveraged computational capacity; a data exchange)

  11. Review Schedule Overview • Project • Computational requirements • Technology: key parameters, trends, procurement strategy • FY06 procurement details • Operations • Context • QCDOC • SciDAC cluster prototypes • SciDAC software • ILDG • Management, Cost & Schedule

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