Operating Systems and Middleware: Supporting Controlled Interaction
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A Case for High Performance Computing with Virtual Machines
A Case for High Performance Computing with Virtual Machines Wei Huangy Jiuxing Liuz Bulent Abaliz Dhabaleswar K. Panday y Computer Science and Engineering z IBM T. J. Watson Research Center The Ohio State University 19 Skyline Drive Columbus, OH 43210 Hawthorne, NY 10532 fhuanwei, [email protected] fjl, [email protected] ABSTRACT in the 1960s [9], but are experiencing a resurgence in both Virtual machine (VM) technologies are experiencing a resur- industry and research communities. A VM environment pro- gence in both industry and research communities. VMs of- vides virtualized hardware interfaces to VMs through a Vir- fer many desirable features such as security, ease of man- tual Machine Monitor (VMM) (also called hypervisor). VM agement, OS customization, performance isolation, check- technologies allow running different guest VMs in a phys- pointing, and migration, which can be very beneficial to ical box, with each guest VM possibly running a different the performance and the manageability of high performance guest operating system. They can also provide secure and computing (HPC) applications. However, very few HPC ap- portable environments to meet the demanding requirements plications are currently running in a virtualized environment of computing resources in modern computing systems. due to the performance overhead of virtualization. Further, Recently, network interconnects such as InfiniBand [16], using VMs for HPC also introduces additional challenges Myrinet [24] and Quadrics [31] are emerging, which provide such as management and distribution of OS images. very low latency (less than 5 µs) and very high bandwidth In this paper we present a case for HPC with virtual ma- (multiple Gbps). -
Operating Systems and Virtualisation Security Knowledge Area (Draft for Comment)
OPERATING SYSTEMS AND VIRTUALISATION SECURITY KNOWLEDGE AREA (DRAFT FOR COMMENT) AUTHOR: Herbert Bos – Vrije Universiteit Amsterdam EDITOR: Andrew Martin – Oxford University REVIEWERS: Chris Dalton – Hewlett Packard David Lie – University of Toronto Gernot Heiser – University of New South Wales Mathias Payer – École Polytechnique Fédérale de Lausanne © Crown Copyright, The National Cyber Security Centre 2019. Following wide community consultation with both academia and industry, 19 Knowledge Areas (KAs) have been identified to form the scope of the CyBOK (see diagram below). The Scope document provides an overview of these top-level KAs and the sub-topics that should be covered under each and can be found on the project website: https://www.cybok.org/. We are seeking comments within the scope of the individual KA; readers should note that important related subjects such as risk or human factors have their own knowledge areas. It should be noted that a fully-collated CyBOK document which includes issue 1.0 of all 19 Knowledge Areas is anticipated to be released by the end of July 2019. This will likely include updated page layout and formatting of the individual Knowledge Areas. Operating Systems and Virtualisation Security Herbert Bos Vrije Universiteit Amsterdam April 2019 INTRODUCTION In this knowledge area, we introduce the principles, primitives and practices for ensuring security at the operating system and hypervisor levels. We shall see that the challenges related to operating system security have evolved over the past few decades, even if the principles have stayed mostly the same. For instance, when few people had their own computers and most computing was done on multiuser (often mainframe-based) computer systems with limited connectivity, security was mostly focused on isolating users or classes of users from each other1. -
The Power of Abstraction
The Power of Abstraction Barbara Liskov March 2013 MIT CSAIL Software is Complex Systems are big and they do complicated things and they may be distributed and/or concurrent Addressing Complexity Algorithms, data structures, protocols Addressing Complexity Algorithms, data structures, protocols Programming methodology Programming languages This Talk Programming methodology as it developed Programming languages Programming languages today The Situation in 1970 The software crisis! Programming Methodology How should programs be designed? How should programs be structured? The Landscape E. W. Dijkstra. Go To Statement Considered Harmful. Cacm, Mar. 1968 The Landscape N. Wirth. Program Development by Stepwise Refinement. Cacm, April 1971 The Landscape D. L. Parnas. Information Distribution Aspects of Design Methodology. IFIP Congress, 1971 “The connections between modules are the assumptions which the modules make about each other.” Modularity A program is a collection of modules Modularity A program is a collection of modules Each module has an interface, described by a specification Modularity A program is a collection of modules Each has an interface, described by a specification A module’s implementation is correct if it meets the specification A using module depends only on the specification Modularity A program is a collection of modules Each has an interface, described by a specification A module’s implementation is correct if it meets the specification A using module depends only on the specification E.g. a sort routine sort(a) Benefits of Modularity Local reasoning Modifiability Independent development The Situation in 1970 Procedures were the only type of module Not powerful enough, e.g., a file system Not used very much Complicated connections Partitions B. -
A Light-Weight Virtual Machine Monitor for Blue Gene/P
A Light-Weight Virtual Machine Monitor for Blue Gene/P Jan Stoessx{1 Udo Steinbergz1 Volkmar Uhlig{1 Jonathan Appavooy1 Amos Waterlandj1 Jens Kehnex xKarlsruhe Institute of Technology zTechnische Universität Dresden {HStreaming LLC jHarvard School of Engineering and Applied Sciences yBoston University ABSTRACT debugging tools. CNK also supports I/O only via function- In this paper, we present a light-weight, micro{kernel-based shipping to I/O nodes. virtual machine monitor (VMM) for the Blue Gene/P Su- CNK's lightweight kernel model is a good choice for the percomputer. Our VMM comprises a small µ-kernel with current set of BG/P HPC applications, providing low oper- virtualization capabilities and, atop, a user-level VMM com- ating system (OS) noise and focusing on performance, scal- ponent that manages virtual BG/P cores, memory, and in- ability, and extensibility. However, today's HPC application terconnects; we also support running native applications space is beginning to scale out towards Exascale systems of directly atop the µ-kernel. Our design goal is to enable truly global dimensions, spanning companies, institutions, compatibility to standard OSes such as Linux on BG/P via and even countries. The restricted support for standardized virtualization, but to also keep the amount of kernel func- application interfaces of light-weight kernels in general and tionality small enough to facilitate shortening the path to CNK in particular renders porting the sprawling diversity applications and lowering OS noise. of scalable applications to supercomputers more and more a Our prototype implementation successfully virtualizes a bottleneck in the development path of HPC applications. -
MIT Turing Laureates Propose Creation of School of Computing an Open Letter to President Rafael Reif
9/26/2017 The Tech OPINION LETTER TO THE EDITOR MIT Turing laureates propose creation of School of Computing An open letter to President Rafael Reif By MIT Turing Laureates | Sep. 20, 2017 Facebook Dear Rafael, Twitter There comes a time, in the course of scientic evolution, when a discipline is ready to emerge from the womb of its parent disciplines and take its own place in the world. For Reddit computer science, or more accurately, for the eld of computing, this moment is now. Print Born from a combination of mathematics and electrical engineering, with the original intent of speeding up calculations, computer science has grown to encompass all information processing and most communications and now to provide an alternative evolutionary path to intelligence. Computer science is rapidly becoming an essential part of most academic disciplines, and students are voting with their feet. One third of MIT undergraduates are majoring in computer science. This trend is unlikely to slow down anytime soon. We, the 7 active MIT Turing Award winners, therefore write this open letter to recommend that you consider the bold step of establishing a School of Computing at MIT. The new school, a brother to the Schools of Engineering and Science, will allow the eld of computing, with its many https://thetech.com/2017/09/20/turing-laureates-open-letter-to-reif 1/4 9/26/2017 The Tech facets and sub-elds, to grow and interact naturally with the Institute’s scientic and engineering environment. The Tech Submit Campus Life Stories Today the study of computation is housed primarily in the EECS department within the School of Engineering, but departments are limited in their ability to hire and grow. -
Malware Information
Malware Information Source: www.onguardonline.gov Malware Quick Facts Malware, short for "malicious software," includes viruses and spyware to steal personal information, send spam, and commit fraud. Criminals create appealing websites, desirable downloads, and compelling stories to lure you to links that will download malware – especially on computers that don't use adequate security software. But you can minimize the havoc that malware can wreak and reclaim your computer and electronic information. If you suspect malware is on your computer: • Stop shopping, banking, and other online activities that involve user names, passwords, or other sensitive information. • Confirm that your security software is active and current. At a minimum, your computer should have anti-virus and anti-spyware software, and a firewall. • Once your security software is up-to-date, run it to scan your computer for viruses and spyware, deleting anything the program identifies as a problem. • If you suspect your computer is still infected, you may want to run a second anti-virus or anti-spyware program – or call in professional help. • Once your computer is back up and running, think about how malware could have been downloaded to your machine, and what you could do to avoid it in the future. Malware is short for "malicious software;" it includes viruses – programs that copy themselves without your permission – and spyware, programs installed without your consent to monitor or control your computer activity. Criminals are hard at work thinking up creative ways to get malware on your computer. They create appealing web sites, desirable downloads, and compelling stories to lure you to links that will download malware, especially on computers that don't use adequate security software. -
Katalog Elektronskih Knjiga
KATALOG ELEKTRONSKIH KNJIGA Br Autor Naziv Godina ISBN Str. Porijeklo izdavanja 1 Peter Kent Pay Per Click Search 2006 0-471-74594-3 130 Kupovina Engine Marketing for Dummies 2 Terry Large Access 1 2007 Internet Freeware 3 Kevin Smith Excel Lassons & Tutorials 2004 Internet Freeware 4 Terry Michael Photografy Tutorials 2006 Internet Freeware Janine Peterson Phil Pivnick 5 Jake Ludington Converting Vinyl LPs 2003 Internet Freeware to CD 6 Allen Wyatt Cleaning Windows XP 2004 0-7645-7311-X Poklon for Dummies 7 Peter Kent Sarch Engine Optimization 2006 0-4717-5441-2 Kupovina for Dummies 8 Terry Large Access 2 2007 Internet Freeware 9 Dirk Dupon How to write, create, 2005 Internet Freeware promote and sell E-books on the Internet 10 Chayden Bates eBook Marketing 2000 Internet Freeware Explained 11 Kevin Sinclair How To Choose A 1999 Internet Freeware Homebased Bussines 12 Bob McElwain 101 Newbie-Frendly Tips 2001 Internet Freeware 13 Windows Basics 2004 Poklon 14 Michael Abrash Zen of Graphic 2005 Poklon Programming, 2. izdanje 15 13 Hot Internet 2000 Internet Freeware Moneymaking Methods 16 K. Williams The Complete HTML 1998 Poklon Teacher 17 C. Darwin On the Origin of Species Internet Freeware 2/175 Br Autor Naziv Godina ISBN Str. Porijeklo izdavanja 18 C. Darwin The Variation of Animals Internet Freeware 19 Bruce Eckel Thinking in C++, Vol 1 2000 Internet Freeware 20 Bruce Eckel Thinking in C++, Vol 2 2000 Internet Freeware 21 James Parton Captains of Industry 1890 399 Internet Freeware 22 Bruno R. Preiss Data Structures and 1998 Internet -
Eakta Jain A. Professional Preparation: B. Appointments: C. Publications
Eakta Jain Department of Computer and Information Science and Engineering University of Florida Phone: (352) 562-3979 E-mail: [email protected] Webpage: jainlab.cise.ufl.edu A. Professional Preparation: Indian Institute of Technology Kanpur, India B.Tech. (Electrical Engineering) 2006 Carnegie Mellon University M.S. (Robotics) 2010 Carnegie Mellon University Ph.D. (Robotics) 2012 B. Appointments: 02/14 – present Assistant Professor, Department of Computer and Information Science and Engi- neering, University of Florida, Gainesville, FL 12/12-02/14 Member of Technical Staff, Texas Instruments Embedded Signal Processing Lab, Computer Vision Branch, Dallas, TX 07/12-12/12 Systems Software Engineer, Natural User Interfaces Team, Texas Instruments, Dallas, TX 09/11-01/12 Lab Associate, Disney Research Pittsburgh, PA 06/10-08/10 Lab Associate, Disney Research Pittsburgh, PA 06/08-08/08 Lab Associate, Disney Research Pittsburgh, PA 06/07-08/07 Walt Disney Animation Studios, Burbank, CA C. Publications: Is the Motion of a Child Perceivably Different from the Motion of an Adult? Jain, E., Anthony, L., Aloba, A., Castonguay, A., Cuba, I., Shaw, A. and Woodward, J. (2016). ACM Transactions on Applied Percep- tion (TAP), 13(4), Article 22. DOI: 10.1145/2947616 Decoupling Light Reflex from Pupillary Dilation to Measure Emotional Arousal in Videos, Rai- turkar, P., Kleinsmith, A., Keil, A., Banerjee, A., and Jain, E. (2016), ACM Symposium on Ap- plied Perception (SAP), 89-96. Gaze-driven Video Re-editing, Jain, E., Sheikh, Y., Shamir, A. and Hodgins, J., (2015), ACM Transac- tions on Graphics (TOG) (34, p21:1-p21:12). DOI: 10.1145/2699644 3D Saliency from Eye Tracking with Tomography, Ma, B., Jain, E., and Entezari, A. -
Oracle Vs. Nosql Vs. Newsql Comparing Database Technology
Oracle vs. NoSQL vs. NewSQL Comparing Database Technology John Ryan Senior Solution Architect, Snowflake Computing Table of Contents The World has Changed . 1 What’s Changed? . 2 What’s the Problem? . .. 3 Performance vs. Availability and Durability . 3 Consistecy vs. Availability . 4 Flexibility vs . Scalability . 5 ACID vs. Eventual Consistency . 6 The OLTP Database Reimagined . 7 Achieving the Impossible! . .. 8 NewSQL Database Technology . 9 VoltDB . 10 MemSQL . 11 Which Applications Need NewSQL Technology? . 12 Conclusion . 13 About the Author . 13 ii The World has Changed The world has changed massively in the past 20 years. Back in the year 2000, a few million users connected to the web using a 56k modem attached to a PC, and Amazon only sold books. Now billions of people are using to their smartphone or tablet 24x7 to buy just about everything, and they’re interacting with Facebook, Twitter and Instagram. The pace has been unstoppable . Expectations have also changed. If a web page doesn’t refresh within seconds we’re quickly frustrated, and go elsewhere. If a web site is down, we fear it’s the end of civilisation as we know it. If a major site is down, it makes global headlines. Instant gratification takes too long! — Ladawn Clare-Panton Aside: If you’re not a seasoned Database Architect, you may want to start with my previous articles on Scalability and Database Architecture. Oracle vs. NoSQL vs. NewSQL eBook 1 What’s Changed? The above leads to a few observations: • Scalability — With potentially explosive traffic growth, IT systems need to quickly grow to meet exponential numbers of transactions • High Availability — IT systems must run 24x7, and be resilient to failure. -
Mac OS X Server Administrator's Guide
034-9285.S4AdminPDF 6/27/02 2:07 PM Page 1 Mac OS X Server Administrator’s Guide K Apple Computer, Inc. © 2002 Apple Computer, Inc. All rights reserved. Under the copyright laws, this publication may not be copied, in whole or in part, without the written consent of Apple. The Apple logo is a trademark of Apple Computer, Inc., registered in the U.S. and other countries. Use of the “keyboard” Apple logo (Option-Shift-K) for commercial purposes without the prior written consent of Apple may constitute trademark infringement and unfair competition in violation of federal and state laws. Apple, the Apple logo, AppleScript, AppleShare, AppleTalk, ColorSync, FireWire, Keychain, Mac, Macintosh, Power Macintosh, QuickTime, Sherlock, and WebObjects are trademarks of Apple Computer, Inc., registered in the U.S. and other countries. AirPort, Extensions Manager, Finder, iMac, and Power Mac are trademarks of Apple Computer, Inc. Adobe and PostScript are trademarks of Adobe Systems Incorporated. Java and all Java-based trademarks and logos are trademarks or registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. Netscape Navigator is a trademark of Netscape Communications Corporation. RealAudio is a trademark of Progressive Networks, Inc. © 1995–2001 The Apache Group. All rights reserved. UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company, Ltd. 062-9285/7-26-02 LL9285.Book Page 3 Tuesday, June 25, 2002 3:59 PM Contents Preface How to Use This Guide 39 What’s Included -
Three-Dimensional Integrated Circuit Design: EDA, Design And
Integrated Circuits and Systems Series Editor Anantha Chandrakasan, Massachusetts Institute of Technology Cambridge, Massachusetts For other titles published in this series, go to http://www.springer.com/series/7236 Yuan Xie · Jason Cong · Sachin Sapatnekar Editors Three-Dimensional Integrated Circuit Design EDA, Design and Microarchitectures 123 Editors Yuan Xie Jason Cong Department of Computer Science and Department of Computer Science Engineering University of California, Los Angeles Pennsylvania State University [email protected] [email protected] Sachin Sapatnekar Department of Electrical and Computer Engineering University of Minnesota [email protected] ISBN 978-1-4419-0783-7 e-ISBN 978-1-4419-0784-4 DOI 10.1007/978-1-4419-0784-4 Springer New York Dordrecht Heidelberg London Library of Congress Control Number: 2009939282 © Springer Science+Business Media, LLC 2010 All rights reserved. This work may not be translated or copied in whole or in part without the written permission of the publisher (Springer Science+Business Media, LLC, 233 Spring Street, New York, NY 10013, USA), except for brief excerpts in connection with reviews or scholarly analysis. Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed is forbidden. The use in this publication of trade names, trademarks, service marks, and similar terms, even if they are not identified as such, is not to be taken as an expression of opinion as to whether or not they are subject to proprietary rights. Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com) Foreword We live in a time of great change. -
The Declarative Imperative Experiences and Conjectures in Distributed Logic
The Declarative Imperative Experiences and Conjectures in Distributed Logic Joseph M. Hellerstein University of California, Berkeley [email protected] ABSTRACT The juxtaposition of these trends presents stark alternatives. The rise of multicore processors and cloud computing is putting Will the forecasts of doom and gloom materialize in a storm enormous pressure on the software community to find solu- that drowns out progress in computing? Or is this the long- tions to the difficulty of parallel and distributed programming. delayed catharsis that will wash away today’s thicket of im- At the same time, there is more—and more varied—interest in perative languages, preparing the ground for a more fertile data-centric programming languages than at any time in com- declarative future? And what role might the database com- puting history, in part because these languages parallelize nat- munity play in shaping this future, having sowed the seeds of urally. This juxtaposition raises the possibility that the theory Datalog over the last quarter century? of declarative database query languages can provide a foun- Before addressing these issues directly, a few more words dation for the next generation of parallel and distributed pro- about both crisis and opportunity are in order. gramming languages. 1.1 Urgency: Parallelism In this paper I reflect on my group’s experience over seven years using Datalog extensions to build networking protocols I would be panicked if I were in industry. and distributed systems. Based on that experience, I present — John Hennessy, President, Stanford University [35] a number of theoretical conjectures that may both interest the database community, and clarify important practical issues in The need for parallelism is visible at micro and macro scales.