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Mitsuhisa Sato CCS, University of Tsukuba

CCS machine development plan for post-peta scale computing and Japanese the next generation supercomputer project. Mitsuhisa Sato CCS, University of Tsukuba. Computing resources in CCS. FIRST. PACS-CS. (2006 ～）. (2007 ～）. GRAPE-6.

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Mitsuhisa Sato CCS, University of Tsukuba

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  1. CCS machine development plan for post-peta scale computingand Japanese the next generation supercomputer project Mitsuhisa Sato CCS, University of Tsukuba

  2. Computing resources in CCS FIRST PACS-CS (2006～） (2007～） GRAPE-6 • A Special-purpose system to Astrophysics simulation by hybrid computation of radiation and N-body. • Each node is equipped by GRAPE-6, which is an accelerator specialized for N-body Gravity calculation. • 256 nodes • performance: cluster 3.5TFLOPS＋Grape-6 35TFLOPS • #node2560 node (Intel Xeon 2.8GHz, single core /node) • peak performance14.34 TF • memory5 TB • network 250MB/s/link x 3 (3D-HXB by GbE) T2K-tsukuba (2008～） • Designed by T2K Open Supercomputer • Alliance (U. Tokyo and Kyoto U) • Spec； • 648 nodes • (quad Opteron, 4sockets/node) • 10000 cores • Peak performance 95.4TF • total memory 20TB • total disk capacity 800TB • ( 20th in top 500, June, 2008)

  3. System installation and future plans 2004 2005 2006 2007 2008 2009 2010 2011 2012 H16 H17 H18 H19 H20 H21 H22 H23 H24 2013 CP-PACS （計画） FCS-IV HA-PACS (planned) PACS-CS FCS-V FCS: Front-end system 2011-2013 VPP T2K suspended the next system to T2K FIRST NGS (10PF)

  4. Issues for Post-peta scale systems(not exa?) • System to enable strong-scaling • the current petascale system enabled by weak-scaling • We need more powerful node & network • GPGPU is one of solution • More specialized architecture • we need a sharp science target • All applications cannot use • More difficult to program • Need supports from CS-side • Collaboration with computer science and computational science CCS's mission

  5. HA-PACS: Highly Accelerated Parallel Advanced system for Computational Sciences (planned) Objective: to investigate acceleration technologies for post-petascale computing and its software, algorithms and computational science applications, and demonstrate by building a prototype system • Design and deploy a GPGPU-based Cluster system • Research on programming model and languages, environment for parallel system with accelerators. • Design of Algorithms and applications for parallel system with accelerators. • Research on architectures for parallel system with accelerators. examples

  6. HA-PACS/NGpowered by PEARL Link IB switch IB switch IB switch IB switch .............. .............. 12 node 12 node • PEARL: PCI-Express Adaptive and Reliable Link • Use PCI-Express as a high-speed link • Connect CPU and devices including GPGPU through a router chip, PEACH (PCI-Express Adaptive Communication Hub) Infiniband QDR ..... ......... IB switch IB switch Infiniband QDR .............. PEARL Link .............. CPU CPU GPGPU GPGPU GPGPU 12 node PCIe PCIe PEARL Link GPGPU GPGPU

  7. Strategic target computational sciences of HA-PACS ① Bio-physics : high performance QM/MM hybrid simulation for mechanisms of high-efficiency enzymatic reactions, electronic and 3D structures of biomacromolecules • Speedup of QM is a key for this simulations ② astrophysics: full Hydrodynamics and radiative-transfer simulation for the Universe and Formation of Astronomical objects • Full 6 dimensional simulation is required ③ Particle physics: full-lattice QCD simulation

  8. Japanese the next generation supercomputer project

  9. background: Japanese government plan • The 3rd Science and Technology Basic Plan (FY2006-FY2010) “Next-generation super computing technology” is selected as one of key technologies of national importance • Development and installation of the advanced high performance supercomputer system (10petaflops) → the Next-Generation Supercomputer • Development application software • Establishment of “Advanced Computational Science and Technology Center” (tentative name) • The 4th Science and Technology Basic Plan (FY2011-FY2015) (Now under discussion) • Exaflops class HPC Technology New chip device, software, hardware… After the election of the House of Representatives in the last summer,…. • In the November of the last year, the new government party have decided to freeze the plan of the development at the screening of government projects!!! • In January of this year, the cabinet have made a decision to resume the super computer project.

  10. The System Overview of NGS 【Massively Parallel/Distributed Memory Supercomputer】 • Ultra high-speed/ high-reliable CPU • Advanced 45nm process technology • 8cores/CPU, 128GFLOPS • Error recovery ( ECC, Instruction retry, etc.) • High performance/highly reliable network • Direct interconnection network by multi-dimensional mesh/torus network • Expandability and reliablity • System Software • Linux OS • Fortran, C, and MPI libraries • Distributed parallel file system Logical 3-dimensional torus network Courtesy of FUJITSU

  11. Configuration of Compute Nodes • Number of nodes > 80k • Number of CPUs > 80k • Number of cores > 640k • Peak Performance > 10PFLOPS • Total Memory Capacity > 1PB ( 16GB/node ) Multi-dimensional mesh/torus network Peak bandwidth: 5GB/s x 2 for each direction of logical 3-dimensional torus network Peak bi-sectional bandwidth: > 30TB/s 5GB/s x 2 5GB/s x 2 ノード CPU: 128GFLOPS (8 Core) Core SIMD(4FMA) 16GFlops Core SIMD(4FMA) 16GFlops 5GB/s x 2 Core SIMD(4FMA) 16GFlops Core SIMD(4FMA) 16GFlops 5GB/s x 2 Core SIMD(4FMA) 16GFlops Core SIMD(4FMA) 16GFlops Core SIMD(4FMA) 16GFlops Core SIMD(4FMA) 16GFLOPS L2$: 5MB 5GB/s x 2 64GB/s z MEM: 16GB y 5GB/s x 2 Logical 3-dimensional torus network for programming x

  12. The Next-Generation Supercomputer Project Prototype and evaluation Conceptual design ○Schedule FY2006 FY2007 FY2008 FY2009 FY2010 FY2011 FY2012 Production, installation, and adjustment Tuning and improvement Detailed design System open to users Next-Generation Integrated Nanoscience Simulation Development, production, and evaluation Verification Applications Next-Generation Integrated Life Simulation Development, production, and evaluation Verification Computer building Design Construction Buildings Research building Design Construction

  13. The categories of users of NGS 1. Strategic Use: MEXT selected 5 strategic fields from national viewpoint. • Field 1: Life science/Drug manufacture • Field 2: New material/energy creation • Field 3: Global change prediction for disaster prevention/mitigation • Field 4: Mono-zukuri (Manufacturing technology) • Field 5: The origin of matters and the universe 2. General Use: The use for the needs of the researchers in many science and technology fields including industrial use and educational use

  14. Organization for NGS • “Advanced Computational Science and Technology Center” (ACSTC) (tentative name) will be organized at NGS. • MEXT selects 5 core organizations that lead research activities in 5 strategic fields • ACSTC →Core research center • Conducts advanced and basic R&D in computational science • Leads cooperation among strategic fields • Provides key knowledge to 5 organizations in strategic fields and another research organizations • 5 core organizations →Research center in each field • Conducts advanced R&D in each field • CCS was selected as a core organization for "Field 5: The origin of matters and the universe" • particle physics, Astrophysics, nuclear physics • Collaboration with KEK and National Observatory

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