Oracle VM Virtualbox Overview
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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). -
Effective Virtual CPU Configuration with QEMU and Libvirt
Effective Virtual CPU Configuration with QEMU and libvirt Kashyap Chamarthy <[email protected]> Open Source Summit Edinburgh, 2018 1 / 38 Timeline of recent CPU flaws, 2018 (a) Jan 03 • Spectre v1: Bounds Check Bypass Jan 03 • Spectre v2: Branch Target Injection Jan 03 • Meltdown: Rogue Data Cache Load May 21 • Spectre-NG: Speculative Store Bypass Jun 21 • TLBleed: Side-channel attack over shared TLBs 2 / 38 Timeline of recent CPU flaws, 2018 (b) Jun 29 • NetSpectre: Side-channel attack over local network Jul 10 • Spectre-NG: Bounds Check Bypass Store Aug 14 • L1TF: "L1 Terminal Fault" ... • ? 3 / 38 Related talks in the ‘References’ section Out of scope: Internals of various side-channel attacks How to exploit Meltdown & Spectre variants Details of performance implications What this talk is not about 4 / 38 Related talks in the ‘References’ section What this talk is not about Out of scope: Internals of various side-channel attacks How to exploit Meltdown & Spectre variants Details of performance implications 4 / 38 What this talk is not about Out of scope: Internals of various side-channel attacks How to exploit Meltdown & Spectre variants Details of performance implications Related talks in the ‘References’ section 4 / 38 OpenStack, et al. libguestfs Virt Driver (guestfish) libvirtd QMP QMP QEMU QEMU VM1 VM2 Custom Disk1 Disk2 Appliance ioctl() KVM-based virtualization components Linux with KVM 5 / 38 OpenStack, et al. libguestfs Virt Driver (guestfish) libvirtd QMP QMP Custom Appliance KVM-based virtualization components QEMU QEMU VM1 VM2 Disk1 Disk2 ioctl() Linux with KVM 5 / 38 OpenStack, et al. libguestfs Virt Driver (guestfish) Custom Appliance KVM-based virtualization components libvirtd QMP QMP QEMU QEMU VM1 VM2 Disk1 Disk2 ioctl() Linux with KVM 5 / 38 libguestfs (guestfish) Custom Appliance KVM-based virtualization components OpenStack, et al. -
Virtual Disk File Virtualbox Ubuntu Download Christian Engvall
virtual disk file virtualbox ubuntu download Christian Engvall. How to install Ubuntu on a VirtualBox virtual machine. It’s very simple and won’t cost you a dime. Don’t forget to install the guest additions at the end. Virtualbox. Virtualbox is a virtualization software that is free and open source. Start by downloading and installing it. It runs on Windows, MacOS, Linux distributions and Solaris. Ubuntu. Ubuntu is a popular Linux distribution for desktops. It’s free and open source. So go ahead and download Ubuntu. 1. Creating a virtual machine in Virtualbox. Fire up VirtualBox and click on the New button in the top left menu. When i started to type Ubuntu, VirtualBox automatically set type to linux and version to Ubuntu. Name and operating system - VirtualBox. Next step is to set the amount of memory that will be allocated. VirtualBox will recommend you a number. But you can choose anything you’d like. This can be changed later if the virtual machine runs slow. Memory size - VirtualBox. Next you select a size of the hard disk. 8 gb that VirtualBox recommends will work fine. Now click Create . Harddisk size - VirtualBox. Select VDI as hard disk file type. Hard disk file type - VirtualBox. Next use dynamically allocated when asked. Storage on physical hard disk - VirtualBox. Set the disk size to the standard 8GB. Ubuntu file location - VirtualBox. 2. Installing Ubuntu on the new virtual machine. Now when the virtual machine is created it’s time to mount the Ubuntu ISO and install it. Click on settings with the newly created virtual machine selected. -
User Guide Laplink® Diskimage™ 7 Professional
http://www.laplink.com/contact 1 ™ E-mail us at [email protected] Laplink® DiskImage 7 Professional User Guide Tel (USA): +1 (425) 952-6001 Tel (UK): +44 (0) 870-2410-983 Fax (USA): +1 (425) 952-6002 Fax (UK): +44 (0) 870-2410-984 ™ Laplink® DiskImage 7 Professional Laplink Software, Inc. Customer Service/Technical Support: Web: http://www.laplink.com/contact E-mail: [email protected] Tel (USA): +1 (425) 952-6001 Fax (USA): +1 (425) 952-6002 Tel (UK): +44 (0) 870-2410-983 User Guide Fax (UK): +44 (0) 870-2410-984 Laplink Software, Inc. 600 108th Ave. NE, Suite 610 Bellevue, WA 98004 U.S.A. Copyright / Trademark Notice © Copyright 2013 Laplink Software, Inc. All rights reserved. Laplink, the Laplink logo, Connect Your World, and DiskImage are registered trademarks or trademarks of Laplink Software, Inc. in the United States and/or other countries. Other trademarks, product names, company names, and logos are the property of their respective holder(s). UG-DiskImagePro-EN-7 (REV. 5/2013) http://www.laplink.com/contact 2 ™ E-mail us at [email protected] Laplink® DiskImage 7 Professional User Guide Tel (USA): +1 (425) 952-6001 Tel (UK): +44 (0) 870-2410-983 Fax (USA): +1 (425) 952-6002 Fax (UK): +44 (0) 870-2410-984 Contents Installation and Registration System Requirements . 1 Installing Laplink DiskImage . 1 Registration . 2 Introduction to DiskImage Overview of Important Features . 2 Definitions . 3 Start Laplink DiskImage - Two Methods . 4 Windows Start . .4 Bootable CD . .4 DiskImage Tasks One-Click Imaging: Create an Image of the Entire Computer . -
Oracle VM Virtualbox User Manual
Oracle VM VirtualBox R User Manual Version 5.1.20 c 2004-2017 Oracle Corporation http://www.virtualbox.org Contents 1 First steps 11 1.1 Why is virtualization useful?............................. 12 1.2 Some terminology................................... 12 1.3 Features overview................................... 13 1.4 Supported host operating systems.......................... 15 1.5 Installing VirtualBox and extension packs...................... 16 1.6 Starting VirtualBox.................................. 17 1.7 Creating your first virtual machine......................... 18 1.8 Running your virtual machine............................ 21 1.8.1 Starting a new VM for the first time.................... 21 1.8.2 Capturing and releasing keyboard and mouse.............. 22 1.8.3 Typing special characters.......................... 23 1.8.4 Changing removable media......................... 24 1.8.5 Resizing the machine’s window...................... 24 1.8.6 Saving the state of the machine...................... 25 1.9 Using VM groups................................... 26 1.10 Snapshots....................................... 26 1.10.1 Taking, restoring and deleting snapshots................. 27 1.10.2 Snapshot contents.............................. 28 1.11 Virtual machine configuration............................ 29 1.12 Removing virtual machines.............................. 30 1.13 Cloning virtual machines............................... 30 1.14 Importing and exporting virtual machines..................... 31 1.15 Global Settings................................... -
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. -
Opportunities for Leveraging OS Virtualization in High-End Supercomputing
Opportunities for Leveraging OS Virtualization in High-End Supercomputing Kevin T. Pedretti Patrick G. Bridges Sandia National Laboratories∗ University of New Mexico Albuquerque, NM Albuquerque, NM [email protected] [email protected] ABSTRACT formance, making modest virtualization performance over- This paper examines potential motivations for incorporating heads viable. In these cases,the increased flexibility that vir- virtualization support in the system software stacks of high- tualization provides can be used to support a wider range end capability supercomputers. We advocate that this will of applications, to enable exascale co-design research and increase the flexibility of these platforms significantly and development, and provide new capabilities that are not pos- enable new capabilities that are not possible with current sible with the fixed software stacks that high-end capability fixed software stacks. Our results indicate that compute, supercomputers use today. virtual memory, and I/O virtualization overheads are low and can be further mitigated by utilizing well-known tech- The remainder of this paper is organized as follows. Sec- niques such as large paging and VMM bypass. Furthermore, tion 2 discusses previous work dealing with the use of virtu- since the addition of virtualization support does not affect alization in HPC. Section 3 discusses several potential areas the performance of applications using the traditional native where platform virtualization could be useful in high-end environment, there is essentially no disadvantage to its ad- supercomputing. Section 4 presents single node native vs. dition. virtual performance results on a modern Intel platform that show that compute, virtual memory, and I/O virtualization 1. -
Disk Image Active@ Disk Image User's Guide
Copyright © 2009, LSOFT TECHNOLOGIES INC. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from LSOFT TECHNOLOGIES INC. LSOFT TECHNOLOGIES INC. reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of LSOFT TECHNOLOGIES INC. to provide notification of such revision or change. LSOFT TECHNOLOGIES INC. provides this documentation without warranty of any kind, either implied or expressed, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. LSOFT may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time. All technical data and computer software is commercial in nature and developed solely at private expense. As the User, or Installer/Administrator of this software, you agree not to remove or deface any portion of any legend provided on any licensed program or documentation contained in, or delivered to you in conjunction with, this User Guide. Active@ Disk Image and the Active@ Disk Image logo are trademarks of LSOFT TECHNOLOGIES INC. LSOFT.NET logo is a trademark of LSOFT TECHNOLOGIES INC. Other brand and product names may be registered trademarks or trademarks of their respective holders. Document version: 1.06 2 Active@ Disk Image User’s Guide Contents 1 Product Overview ..................................................................................... 5 1.1 Overview and List of Features............................................................... 5 1.2 System Requirements.......................................................................... 6 1.3 Supported File Systems ...................................................................... -
A Virtual Machine Environment for Real Time Systems Laboratories
AC 2007-904: A VIRTUAL MACHINE ENVIRONMENT FOR REAL-TIME SYSTEMS LABORATORIES Mukul Shirvaikar, University of Texas-Tyler MUKUL SHIRVAIKAR received the Ph.D. degree in Electrical and Computer Engineering from the University of Tennessee in 1993. He is currently an Associate Professor of Electrical Engineering at the University of Texas at Tyler. He has also held positions at Texas Instruments and the University of West Florida. His research interests include real-time imaging, embedded systems, pattern recognition, and dual-core processor architectures. At the University of Texas he has started a new real-time systems lab using dual-core processor technology. He is also the principal investigator for the “Back-To-Basics” project aimed at engineering student retention. Nikhil Satyala, University of Texas-Tyler NIKHIL SATYALA received the Bachelors degree in Electronics and Communication Engineering from the Jawaharlal Nehru Technological University (JNTU), India in 2004. He is currently pursuing his Masters degree at the University of Texas at Tyler, while working as a research assistant. His research interests include embedded systems, dual-core processor architectures and microprocessors. Page 12.152.1 Page © American Society for Engineering Education, 2007 A Virtual Machine Environment for Real Time Systems Laboratories Abstract The goal of this project was to build a superior environment for a real time system laboratory that would allow users to run Windows and Linux embedded application development tools concurrently on a single computer. These requirements were dictated by real-time system applications which are increasingly being implemented on asymmetric dual-core processors running different operating systems. A real time systems laboratory curriculum based on dual- core architectures has been presented in this forum in the past.2 It was designed for a senior elective course in real time systems at the University of Texas at Tyler that combines lectures along with an integrated lab. -
Chapter 3. Booting Operating Systems
Chapter 3. Booting Operating Systems Abstract: Chapter 3 provides a complete coverage on operating systems booting. It explains the booting principle and the booting sequence of various kinds of bootable devices. These include booting from floppy disk, hard disk, CDROM and USB drives. Instead of writing a customized booter to boot up only MTX, it shows how to develop booter programs to boot up real operating systems, such as Linux, from a variety of bootable devices. In particular, it shows how to boot up generic Linux bzImage kernels with initial ramdisk support. It is shown that the hard disk and CDROM booters developed in this book are comparable to GRUB and isolinux in performance. In addition, it demonstrates the booter programs by sample systems. 3.1. Booting Booting, which is short for bootstrap, refers to the process of loading an operating system image into computer memory and starting up the operating system. As such, it is the first step to run an operating system. Despite its importance and widespread interests among computer users, the subject of booting is rarely discussed in operating system books. Information on booting are usually scattered and, in most cases, incomplete. A systematic treatment of the booting process has been lacking. The purpose of this chapter is to try to fill this void. In this chapter, we shall discuss the booting principle and show how to write booter programs to boot up real operating systems. As one might expect, the booting process is highly machine dependent. To be more specific, we shall only consider the booting process of Intel x86 based PCs. -
How to Create a Custom Live CD for Secure Remote Incident Handling in the Enterprise
How to Create a Custom Live CD for Secure Remote Incident Handling in the Enterprise Abstract This paper will document a process to create a custom Live CD for secure remote incident handling on Windows and Linux systems. The process will include how to configure SSH for remote access to the Live CD even when running behind a NAT device. The combination of customization and secure remote access will make this process valuable to incident handlers working in enterprise environments with limited remote IT support. Bert Hayes, [email protected] How to Create a Custom Live CD for Remote Incident Handling 2 Table of Contents Abstract ...........................................................................................................................................1 1. Introduction ............................................................................................................................5 2. Making Your Own Customized Debian GNU/Linux Based System........................................7 2.1. The Development Environment ......................................................................................7 2.2. Making Your Dream Incident Handling System...............................................................9 2.3. Hardening the Base Install.............................................................................................11 2.3.1. Managing Root Access with Sudo..........................................................................11 2.4. Randomizing the Handler Password at Boot Time ........................................................12 -
Understanding Full Virtualization, Paravirtualization, and Hardware Assist
VMware Understanding Full Virtualization, Paravirtualization, and Hardware Assist Contents Introduction .................................................................................................................1 Overview of x86 Virtualization..................................................................................2 CPU Virtualization .......................................................................................................3 The Challenges of x86 Hardware Virtualization ...........................................................................................................3 Technique 1 - Full Virtualization using Binary Translation......................................................................................4 Technique 2 - OS Assisted Virtualization or Paravirtualization.............................................................................5 Technique 3 - Hardware Assisted Virtualization ..........................................................................................................6 Memory Virtualization................................................................................................6 Device and I/O Virtualization.....................................................................................7 Summarizing the Current State of x86 Virtualization Techniques......................8 Full Virtualization with Binary Translation is the Most Established Technology Today..........................8 Hardware Assist is the Future of Virtualization, but the Real Gains Have