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SCARF

SCARF. Duncan Tooke RAL HPCSG. Overview. What is SCARF? Hardware & OS Management Software Users Future. What is SCARF?. Production - service level definitions, professionally managed, user Support, application Support , integrated with other e-Science services.

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SCARF

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  1. SCARF Duncan Tooke RAL HPCSG

  2. Overview • What is SCARF? • Hardware & OS • Management • Software • Users • Future

  3. What is SCARF? • Production - service level definitions, professionally managed, user Support, application Support , integrated with other e-Science services. • Grid - access should be seamless, same technology as National Grid Service (NGS) thus interoperable, integrated into CCLRC Single Sign on Project.

  4. Hardware & OS • 128 x Dual AMD 248 (2 x 1 core), 8GB RAM, Myrinet (A) • 18 x Dual AMD 275 (2 x 2 core), 8GB RAM, Myrinet (B) • 4 x Quad AMD 275 (4 x 2 core), 32GB RAM, Myrinet (B) • 52 x Dual AMD 280 (2 x 2 core), 8GB RAM, Myrinet (B) • 56 x Dual AMD 275 (2 x 2 core) 4GB RAM, no Myrinet • 4 x File servers with 4TB RAID • 5 x File servers on 70TB SAN • 10GB network link (shared) • RHEL 4 • Globus 4 pre-web • (1 system administrator)

  5. Management LDAP • Heterogeneous environment • Need to run as a single system • SCALI-Manage with single slave kickstart + common config RPM • SCALI-MPI for single MPI binaries • SAN + LDAP + Automount Management Node SAN

  6. Software • GCC, PGI, Intel • C, C++, Fortran, Java • MPI & Parallel debugger • User generated code • Popular scientific packages, e.g. GAMESS, Gaussian

  7. Users • 87 registered users • 11 facilities • 1.5 million CPU hours in the last 12 months • Most are developers or experienced HPC • Just starting to get Grid adopters

  8. The future… • Continued expansion enabled by infrastructure • Development of Grid tools, e.g. automated parameter sweeping • User interfaces • NGS affiliation

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