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An Overview of the Blue Gene/L System Software Organization
An Overview of the Blue Gene/L System Software Organization George Almasi´ , Ralph Bellofatto , Jose´ Brunheroto , Calin˘ Cas¸caval , Jose´ G. ¡ Castanos˜ , Luis Ceze , Paul Crumley , C. Christopher Erway , Joseph Gagliano , Derek Lieber , Xavier Martorell , Jose´ E. Moreira , Alda Sanomiya , and Karin ¡ Strauss ¢ IBM Thomas J. Watson Research Center Yorktown Heights, NY 10598-0218 £ gheorghe,ralphbel,brunhe,cascaval,castanos,pgc,erway, jgaglia,lieber,xavim,jmoreira,sanomiya ¤ @us.ibm.com ¥ Department of Computer Science University of Illinois at Urbana-Champaign Urabana, IL 61801 £ luisceze,kstrauss ¤ @uiuc.edu Abstract. The Blue Gene/L supercomputer will use system-on-a-chip integra- tion and a highly scalable cellular architecture. With 65,536 compute nodes, Blue Gene/L represents a new level of complexity for parallel system software, with specific challenges in the areas of scalability, maintenance and usability. In this paper we present our vision of a software architecture that faces up to these challenges, and the simulation framework that we have used for our experiments. 1 Introduction In November 2001 IBM announced a partnership with Lawrence Livermore National Laboratory to build the Blue Gene/L (BG/L) supercomputer, a 65,536-node machine de- signed around embedded PowerPC processors. Through the use of system-on-a-chip in- tegration [10], coupled with a highly scalable cellular architecture, Blue Gene/L will de- liver 180 or 360 Teraflops of peak computing power, depending on the utilization mode. Blue Gene/L represents a new level of scalability for parallel systems. Whereas existing large scale systems range in size from hundreds (ASCI White [2], Earth Simulator [4]) to a few thousands (Cplant [3], ASCI Red [1]) of compute nodes, Blue Gene/L makes a jump of almost two orders of magnitude. -
Advances in Ultrashort-Pulse Lasers • Modeling Dispersions of Biological and Chemical Agents • Centennial of E
October 2001 U.S. Department of Energy’s Lawrence Livermore National Laboratory Also in this issue: • More Advances in Ultrashort-Pulse Lasers • Modeling Dispersions of Biological and Chemical Agents • Centennial of E. O. Lawrence’s Birth About the Cover Computing systems leader Greg Tomaschke works at the console of the 680-gigaops Compaq TeraCluster2000 parallel supercomputer, one of the principal machines used to address large-scale scientific simulations at Livermore. The supercomputer is accessible to unclassified program researchers throughout the Laboratory, thanks to the Multiprogrammatic and Institutional Computing (M&IC) Initiative described in the article beginning on p. 4. M&IC makes supercomputers an institutional resource and helps scientists realize the potential of advanced, three-dimensional simulations. Cover design: Amy Henke About the Review Lawrence Livermore National Laboratory is operated by the University of California for the Department of Energy’s National Nuclear Security Administration. At Livermore, we focus science and technology on assuring our nation’s security. We also apply that expertise to solve other important national problems in energy, bioscience, and the environment. Science & Technology Review is published 10 times a year to communicate, to a broad audience, the Laboratory’s scientific and technological accomplishments in fulfilling its primary missions. The publication’s goal is to help readers understand these accomplishments and appreciate their value to the individual citizen, the nation, and the world. Please address any correspondence (including name and address changes) to S&TR, Mail Stop L-664, Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551, or telephone (925) 423-3432. Our e-mail address is [email protected]. -
2017 HPC Annual Report Team Would Like to Acknowledge the Invaluable Assistance Provided by John Noe
sandia national laboratories 2017 HIGH PERformance computing The 2017 High Performance Computing Annual Report is dedicated to John Noe and Dino Pavlakos. Building a foundational framework Editor in high performance computing Yasmin Dennig Contributing Writers Megan Davidson Sandia National Laboratories has a long history of significant contributions to the high performance computing Mattie Hensley community and industry. Our innovative computer architectures allowed the United States to become the first to break the teraflop barrier—propelling us to the international spotlight. Our advanced simulation and modeling capabilities have been integral in high consequence US operations such as Operation Burnt Frost. Strong partnerships with industry leaders, such as Cray, Inc. and Goodyear, have enabled them to leverage our high performance computing capabilities to gain a tremendous competitive edge in the marketplace. Contributing Editor Laura Sowko As part of our continuing commitment to provide modern computing infrastructure and systems in support of Sandia’s missions, we made a major investment in expanding Building 725 to serve as the new home of high performance computer (HPC) systems at Sandia. Work is expected to be completed in 2018 and will result in a modern facility of approximately 15,000 square feet of computer center space. The facility will be ready to house the newest National Nuclear Security Administration/Advanced Simulation and Computing (NNSA/ASC) prototype Design platform being acquired by Sandia, with delivery in late 2019 or early 2020. This new system will enable continuing Stacey Long advances by Sandia science and engineering staff in the areas of operating system R&D, operation cost effectiveness (power and innovative cooling technologies), user environment, and application code performance. -
The Case for the Comprehensive Nuclear Test Ban Treaty
An Arms Control Association Briefing Book Now More Than Ever The Case for The Comprehensive nuClear TesT Ban TreaTy February 2010 Tom Z. Collina with Daryl G. Kimball An Arms Control Association Briefing Book Now More Than Ever The CAse for The Comprehensive nuCleAr TesT BAn Treaty February 2010 Tom Z. Collina with Daryl G. Kimball About the Authors Tom Z. Collina is Research Director at the Arms Control Association. He has over 20 years of professional experience in international security issues, previously serving as Director of the Global Security Program at the Union of Concerned Scientists and Executive Director of the Institute for Science and International Security. He was actively involved in national efforts to end U.S. nuclear testing in 1992 and international negotiations to conclude the CTBT in 1996. Daryl G. Kimball is Executive Director of the Arms Control Association. Previously he served as Executive Director of the Coalition to Reduce Nuclear Dangers, a consortium of 17 of the largest U.S. non-governmental organizations working together to strengthen national and international security by reducing the threats posed by nuclear weapons. He also worked as Director of Security Programs for Physicians for Social Responsibility, where he helped spearhead non-governmental efforts to win congressional approval for the 1992 nuclear test moratorium legislation, U.S. support for a “zero-yield” test ban treaty, and the U.N.’s 1996 endorsement of the CTBT. Acknowledgements The authors wish to thank our colleagues Pierce Corden, David Hafemeister, Katherine Magraw, and Benn Tannenbaum for sharing their expertise and reviewing draft text. -
W80-4 LRSO Missile Warhead
Description Accomplishments As part of the effort to keep the nuclear In 2015, the W80-4 LEP entered into Phase 6.2—feasibility study and down-select— arsenal safe, secure, and effective, the to establish program planning, mature technical requirements, and propose a full U.S. Air Force is developing a nuclear- suite of design options. In October 2017, the program entered Phase 6.2A—design capable Long-Range Standoff (LRSO) definition and cost study—to establish detailed cost estimates for all options and cruise missile. The LRSO is designed to a baseline from which the core cost estimate and detailed schedule are generated, replace the aging AGM-86 Air-Launched with appropriate risk mitigation. The W80-4 team is making significant progress: Cruise Missile, operational since 1982. The U.S. is extending the lifetime of its An effective team that includes the National Nuclear Security Administration warhead, the W80-1, through the W80-4 and the U.S. Air Force is in place; coordination is robust. Life Extension Program (LEP). The W80-1 will be refurbished and adapted to the new An extensive range of full-system tests, together with hundreds of small-scale tests, are in progress to provide confidence in the performance of W80-4 LEP LRSO missile as the W80-4. As the lead design options that include additively manufactured components. design agency for its nuclear explosive package, Lawrence Livermore, working LLNL leads DOE’s effort to develop and qualify the insensitive high explosive jointly with Sandia National Laboratories, formulated using newly produced constituents. Manufacturing of production- is developing options for the W80-4 that scale quantities of the new explosives is underway and on schedule. -
R00456--FM Getting up to Speed
GETTING UP TO SPEED THE FUTURE OF SUPERCOMPUTING Susan L. Graham, Marc Snir, and Cynthia A. Patterson, Editors Committee on the Future of Supercomputing Computer Science and Telecommunications Board Division on Engineering and Physical Sciences THE NATIONAL ACADEMIES PRESS Washington, D.C. www.nap.edu THE NATIONAL ACADEMIES PRESS 500 Fifth Street, N.W. Washington, DC 20001 NOTICE: The project that is the subject of this report was approved by the Gov- erning Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engi- neering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special competences and with regard for ap- propriate balance. Support for this project was provided by the Department of Energy under Spon- sor Award No. DE-AT01-03NA00106. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the authors and do not necessarily reflect the views of the organizations that provided support for the project. International Standard Book Number 0-309-09502-6 (Book) International Standard Book Number 0-309-54679-6 (PDF) Library of Congress Catalog Card Number 2004118086 Cover designed by Jennifer Bishop. Cover images (clockwise from top right, front to back) 1. Exploding star. Scientific Discovery through Advanced Computing (SciDAC) Center for Supernova Research, U.S. Department of Energy, Office of Science. 2. Hurricane Frances, September 5, 2004, taken by GOES-12 satellite, 1 km visible imagery. U.S. National Oceanographic and Atmospheric Administration. 3. Large-eddy simulation of a Rayleigh-Taylor instability run on the Lawrence Livermore National Laboratory MCR Linux cluster in July 2003. -
Blue Gene/L Architecture
Blue Gene/L Blue Gene/L Architecture Burkhard Steinmacher-Burow IBM Watson / Böblingen November 2, 2004, DESY-Zeuthen © 2004 IBM Corporation Blue Gene/L Outline Architecture Motivation Given the motivation, the architecture should seem natural and obvious. Architecture Overview 2 Blue Gene/L Supercomputer Overview | November 2, 2004, DESY-Zeuthen © 2004 IBM Corporation Blue Gene/L What is the Blue Gene/L Project? A 512- to 65536-node highly-integrated supercomputer based on system-on-a-chip technology: Node ASIC. Link ASIC. Strategic partnership with LLNL and other high performance computing centers and researchers: – Focus on numerically intensive scientific problems. – Validation and optimization of architecture based on real applications. – Grand challenge science stresses networks, memory and processing power. – Partners accustomed to "new architectures" and work hard to adapt to constraints. – Partners assist us in the investigation of the reach of this machine. 3 Blue Gene/L Supercomputer Overview | November 2, 2004, DESY-Zeuthen © 2004 IBM Corporation Blue Gene/L BG/L for Capability Computing December 1999: IBM Research announced a 5 year, $100M US, effort to build a petaflop/s scale supercomputer to attack science problems such as protein folding. Goals: Advance the state of the art of scientific simulation. Advance the state of the art in computer design and software for capability and capacity markets. November 2001: Announced Research partnership with Lawrence Livermore National Laboratory (LLNL). November 2002: Announced planned acquisition of a BG/L machine by LLNL as part of the ASCI Purple contract. June 2003: First DD1 chips completed. November 2003: BG/L Half rack DD1 prototype (512 nodes at 500 MHz) ranked #73 on 22nd Top500 List announced at SC2003 (1.435 TFlops/s ). -
Parallel Gaussian Elimination
Outline • Review Gaussian Elimination (GE) for solving Ax=b • Optimizing GE for caches on sequential machines - using matrix-matrix multiplication (BLAS and LAPACK) CS 267 • Minimizing communication for sequential GE Dense Linear Algebra: - Not LAPACK, but Recursive LU minimizes bandwidth (latency possible) Parallel Gaussian Elimination • Data layouts on parallel machines • Parallel Gaussian Elimination (ScaLAPACK) • Minimizing communication for parallel GE - Not ScaLAPACK (yet), but “Comm-Avoiding LU” (CALU) - Same idea for minimizing bandwidth and latency in sequential case James Demmel • Summarize rest of dense linear algebra • Dynamically scheduled LU for Multicore www.cs.berkeley.edu/~demmel/cs267_Spr14 • LU for Heterogeneous computers (CPU + GPU) 03/04/2014 CS267 Lecture 13 1 03/04/2014 CS267 Lecture 13 2 Summary of Matrix Multiplication Sca/LAPACK Overview • Goal: Multiply n x n matrices C = A·B using O(n3) arithmetic operations, minimizing data movement • Sequential - Assume fast memory of size M < 3n2, count slow mem. refs. - Thm: need Ω(n3/M1/2) slow mem. refs. and Ω(n3/M3/2) messages - Attainable using “blocked” or “recursive” matrix multiply • Parallel - Assume P processors, O(n2/P) data per processor - Thm: need Ω(n2/P1/2) words sent and Ω(P1/2) messages - Attainable by Cannon, nearly by SUMMA • SUMMA used in practice (PBLAS) - c copies of data ⇒ c1/2 times fewer words, c3/2 fewer messages • Which other linear algebra problems can we do with as little data movement? - Today: Solve Ax=b in detail, summarize what’s known, open3 -
Newsline Year in Review 2020
NEWSLINE YEAR IN REVIEW 2020 LAWRENCE LIVERMORE NATIONAL LABORATORY YELLOW LINKS ARE ACCESSIBLE ON THE LAB’S INTERNAL NETWORK ONLY. 1 BLUE LINKS ARE ACCESSIBLE ON BOTH THE INTERNAL AND EXTERNAL LAB NETWORK. IT WAS AN EXCEPTIONAL YEAR, DESPITE RESTRICTIONS hough 2020 was dominated by events surrounding LLNL scientists released “Getting to Neutral: Options for the COVID pandemic — whether it was adapting Negative Carbon Emissions in California,” identifying a to social distancing and the need to telecommute, robust suite of technologies to help California clear the T safeguarding employees as they returned to last hurdle and become carbon neutral — and ultimately conduct mission-essential work or engaging in carbon negative — by 2045. COVID-related research — the Laboratory managed an exceptional year in all facets of S&T and operations. The Lab engineers and biologists developed a “brain-on-a- Lab delivered on all missions despite the pandemic and chip” device capable of recording the neural activity of its restrictions. living brain cell cultures in three dimensions, a significant advancement in the realistic modeling of the human brain The year was marked by myriad advances in high outside of the body. Scientists paired 3D-printed, living performance computing as the Lab moved closer to human brain vasculature with advanced computational making El Capitan and exascale computing a reality. flow simulations to better understand tumor cell attachment to blood vessels and developed the first living Lab researchers completed assembly and qualification 3D-printed aneurysm to improve surgical procedures and of 16 prototype high-voltage, solid state pulsed-power personalize treatments. drivers to meet the delivery schedule for the Scorpius radiography project. -
75 YEARS Trinity Test the Dawn of America’S Scientific Innovation CONTENTS
75 YEARS Trinity Test The Dawn of America’s Scientific Innovation CONTENTS 1 THE MANHATTAN PROJECT ........ 4 2 TRINITY TEST - JULY 16, 1945 ...... 6 3 1940s .............................................. 10 4 1950s ..........................................12 5 1960s ..........................................14 1970s ..........................................16 Beyond the advances in nuclear physics 6 and chemistry that made the “ 7 1980s ..........................................18 “ first functional atomic device possible, Trinity was arguably the greatest 1990s ..........................................20 scientific experiment ever conducted. 8 9 2000s ..........................................22 Lisa E. Gordon-Hagerty U.S. Under Secretary of Energy for Nuclear Security Administrator of the National Nuclear Security Administration 10 2010s ..........................................24 11 2020 and FORWARD ..................... 26 1 Manhattan Project: The Origin of the Trinity Test In the 1920s-1930s, a young Hungarian-German physicist Roosevelt responded by launching The Manhattan Project, Leo Szilard led the field of nuclear research, submitting a nationwide network of laboratories and manufacturing patents for a linear accelerator (1928) and cyclotron (1929), facilities designed to collaboratively assist in the before collaborating with Albert Einstein to develop the manufacture of a new atomic weapon. Einstein refrigerator. But when Hitler came into power in 1933, Szilard fled to England, encouraging his friends and family to do the same. In England, he first described the nuclear chain reaction (1933) and patented an early design for a nuclear fission reactor (1934). In 1938, Szilard joined Einstein in the United States, but the rumor that a group of Berlin chemists had split the uranium atom made them so concerned that in 1939, they sent an urgent letter to President Franklin D. Roosevelt, warning him that that Axis scientists were working to turn new nuclear discoveries into a superweapon. -
Benchmark Modeling and Projections Current #1 and #2 Systems in Top500 List Summit and Sierra Supercomputers - from Proposal to Acceptance
Benchmark Modeling and Projections Current #1 and #2 systems in Top500 list https://www.top500.org/ Summit and Sierra Supercomputers - From Proposal To Acceptance Jaime H Moreno IBM Thomas J. Watson Research Center Acknowledgements § Multi-year efforts by team of experts from IBM and NVIDIA, with support from Mellanox § IBM – Bilge Acun, David Appelhans, Daniele Buono, Constantinos Evangelinos, Gordon Fossum, Nestor Gonzales, Leopold Grinberg, Apo Kayi, Bryan Rosenburg, Robert Walkup, Hui-fang (Sophia) Wen, James Sexton § NVIDIA – Steve Abbott, Michael Katz, Jeff Larkin, Justin Luitjens, Steve Rennich, G. Thomas-Collignon, Peng Wang, Cyril Zeller § Support from Summit and Sierra System Administrators – Summit: Veronica Vergara (ORNL), Jason Renner (IBM) – Sierra: Adam Bertsch (LLNL), Sean McCombe (IBM) § Hardware and Software development and deployment teams across IBM, NVIDIA, Mellanox § Paper “Benchmarking Summit and Sierra Supercomputers: From Proposal to Acceptance,” 6th Special HPCS Session on High Performance Computing Benchmarking and Optimization (HPBench 2019). JH Moreno, IBM Research 8/27/19 2 June 2018: Fastest Supercomputer in the World Current #1 and #2 systems in Top500 list https://www.top500.org/ JH Moreno, IBM Research 8/27/19 3 Summit’s structure POWER9: Server Converged 2U server 22 Cores 2 POWER9 + 6 Volta GPU (@7 TF/s) drawer for HPC and Cloud Volta: 7.0 DP TF/s Scalable Active Network: 16 Optional Mellanox IB EDR Switch Flash Memory Racks System: 200 PF compute 256 Compute Racks 5 PB Active Flash 4608 servers 120 -
Supercomputers – Prestige Objects Or Crucial Tools for Science and Industry?
Supercomputers – Prestige Objects or Crucial Tools for Science and Industry? Hans W. Meuer a 1, Horst Gietl b 2 a University of Mannheim & Prometeus GmbH, 68131 Mannheim, Germany; b Prometeus GmbH, 81245 Munich, Germany; This paper is the revised and extended version of the Lorraine King Memorial Lecture Hans Werner Meuer was invited by Lord Laird of Artigarvan to give at the House of Lords, London, on April 18, 2012. Keywords: TOP500, High Performance Computing, HPC, Supercomputing, HPC Technology, Supercomputer Market, Supercomputer Architecture, Supercomputer Applications, Supercomputer Technology, Supercomputer Performance, Supercomputer Future. 1 e-mail: [email protected] 2 e-mail: [email protected] 1 Content 1 Introduction ..................................................................................................................................... 3 2 The TOP500 Supercomputer Project ............................................................................................... 3 2.1 The LINPACK Benchmark ......................................................................................................... 4 2.2 TOP500 Authors ...................................................................................................................... 4 2.3 The 39th TOP500 List since 1993 .............................................................................................. 5 2.4 The 39th TOP10 List since 1993 ...............................................................................................