Advanced Authentication Connector for Z/OS® Installation and Getting Started Guide © Copyright 2017 - 2020 Micro Focus Or One of Its Affiliates
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Task Scheduling Balancing User Experience and Resource Utilization on Cloud
Rochester Institute of Technology RIT Scholar Works Theses 7-2019 Task Scheduling Balancing User Experience and Resource Utilization on Cloud Sultan Mira [email protected] Follow this and additional works at: https://scholarworks.rit.edu/theses Recommended Citation Mira, Sultan, "Task Scheduling Balancing User Experience and Resource Utilization on Cloud" (2019). Thesis. Rochester Institute of Technology. Accessed from This Thesis is brought to you for free and open access by RIT Scholar Works. It has been accepted for inclusion in Theses by an authorized administrator of RIT Scholar Works. For more information, please contact [email protected]. Task Scheduling Balancing User Experience and Resource Utilization on Cloud by Sultan Mira A Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Science in Software Engineering Supervised by Dr. Yi Wang Department of Software Engineering B. Thomas Golisano College of Computing and Information Sciences Rochester Institute of Technology Rochester, New York July 2019 ii The thesis “Task Scheduling Balancing User Experience and Resource Utilization on Cloud” by Sultan Mira has been examined and approved by the following Examination Committee: Dr. Yi Wang Assistant Professor Thesis Committee Chair Dr. Pradeep Murukannaiah Assistant Professor Dr. Christian Newman Assistant Professor iii Dedication I dedicate this work to my family, loved ones, and everyone who has helped me get to where I am. iv Abstract Task Scheduling Balancing User Experience and Resource Utilization on Cloud Sultan Mira Supervising Professor: Dr. Yi Wang Cloud computing has been gaining undeniable popularity over the last few years. Among many techniques enabling cloud computing, task scheduling plays a critical role in both efficient resource utilization for cloud service providers and providing an excellent user ex- perience to the clients. -
Resource Access Control Facility (RACF) General User's Guide
----- --- SC28-1341-3 - -. Resource Access Control Facility -------_.----- - - --- (RACF) General User's Guide I Production of this Book This book was prepared and formatted using the BookMaster® document markup language. Fourth Edition (December, 1988) This is a major revision of, and obsoletes, SC28-1341- 3and Technical Newsletter SN28-l2l8. See the Summary of Changes following the Edition Notice for a summary of the changes made to this manual. Technical changes or additions to the text and illustrations are indicated by a vertical line to the left of the change. This edition applies to Version 1 Releases 8.1 and 8.2 of the program product RACF (Resource Access Control Facility) Program Number 5740-XXH, and to all subsequent versions until otherwise indicated in new editions or Technical Newsletters. Changes are made periodically to the information herein; before using this publication in connection with the operation of IBM systems, consult the latest IBM Systemj370 Bibliography, GC20-0001, for the editions that are applicable and current. References in this publication to IBM products or services do not imply that IBM· intends to make these available in all countries in which IBM operates. Any reference to an IBM product in this publication is not intended to state or imply that only IBM's product may be used. Any functionally equivalent product may be used instead. This statement does not expressly or implicitly waive any intellectual property right IBM may hold in any product mentioned herein. Publications are not stocked at the address given below. Requests for IBM publications should be made to your IBM representative or to the IBM branch office serving your locality. -
3.A Fixed-Priority Scheduling
2017/18 UniPD - T. Vardanega 10/03/2018 Standard notation : Worst-case blocking time for the task (if applicable) 3.a Fixed-Priority Scheduling : Worst-case computation time (WCET) of the task () : Relative deadline of the task : The interference time of the task : Release jitter of the task : Number of tasks in the system Credits to A. Burns and A. Wellings : Priority assigned to the task (if applicable) : Worst-case response time of the task : Minimum time between task releases, or task period () : The utilization of each task ( ⁄) a-Z: The name of a task 2017/18 UniPD – T. Vardanega Real-Time Systems 168 of 515 The simplest workload model Fixed-priority scheduling (FPS) The application is assumed to consist of tasks, for fixed At present, the most widely used approach in industry All tasks are periodic with known periods Each task has a fixed (static) priority determined off-line This defines the periodic workload model In real-time systems, the “priority” of a task is solely derived The tasks are completely independent of each other from its temporal requirements No contention for logical resources; no precedence constraints The task’s relative importance to the correct functioning of All tasks have a deadline equal to their period the system or its integrity is not a driving factor at this level A recent strand of research addresses mixed-criticality systems, with Each task must complete before it is next released scheduling solutions that contemplate criticality attributes All tasks have a single fixed WCET, which can be trusted as The ready tasks (jobs) are dispatched to execution in a safe and tight upper-bound the order determined by their (static) priority Operation modes are not considered Hence, in FPS, scheduling at run time is fully defined by the All system overheads (context-switch times, interrupt handling and so on) are assumed absorbed in the WCETs priority assignment algorithm 2017/18 UniPD – T. -
The CICS/MQ Interface
1 2 Each application program which will execute using MQ call statements require a few basic inclusions of generated code. The COPY shown are the one required by all applications using MQ functions. We have suppressed the list of the CMQV structure since it is over 20 pages of COBOL variable constants. The WS‐VARIABLES are the minimum necessary to support bot getting and putting messages from and to queues. The MQ‐CONN would normally be the handle acquired by an MQCONN function, but that call along with the MQDISC call are ignored by CICS / MQ interface. It is CICS itself that has performed the MQCONN to the queue manager. The MQ‐HOBJ‐I and MQ‐HOBJ‐O represent the handles, acquired on MQOPEN for a queue, used to specify which queue the other calls relate to. The MQ‐COMPCODE and MQ‐REASON are the variables which the application must test after every MQ call to determine its success. 3 This slide contains the message input and output areas used on the MQGET and MQPUT calls. Our messages are rather simple and limited in size. SO we have put the data areas in the WORKING‐STORAGE SECTION. Many times you will have these as copy books rather than native COBOL variables. Since the WORKING‐STORAGE area is being copied for each task using the program, we recommend that larger messages areas be put into the LINKAGE SECTION. Here we use a size of 200‐300 K as a suggestion. However, that size will vary depending upon your CICS environment. When the application is using message areas in the LINKAGE SECTION, it will be responsible to perform a CICS GETMAIN command to acquire the storage for the message area. -
CA Top Secret for Z/OS Control Options Guide
CA Top Secret® for z/OS Control Options Guide r15 Ninth Edition This Documentation, which includes embedded help systems and electronically distributed materials (hereinafter referred to as the “Documentation”), is for your informational purposes only and is subject to change or withdrawal by CA at any time. This Documentation is proprietary information of CA and may not be copied, transferred, reproduced, disclosed, modified or duplicated, in whole or in part, without the prior written consent of CA. If you are a licensed user of the software product(s) addressed in the Documentation, you may print or otherwise make available a reasonable number of copies of the Documentation for internal use by you and your employees in connection with that software, provided that all CA copyright notices and legends are affixed to each reproduced copy. The right to print or otherwise make available copies of the Documentation is limited to the period during which the applicable license for such software remains in full force and effect. Should the license terminate for any reason, it is your responsibility to certify in writing to CA that all copies and partial copies of the Documentation have been returned to CA or destroyed. TO THE EXTENT PERMITTED BY APPLICABLE LAW, CA PROVIDES THIS DOCUMENTATION “AS IS” WITHOUT WARRANTY OF ANY KIND, INCLUDING WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NONINFRINGEMENT. IN NO EVENT WILL CA BE LIABLE TO YOU OR ANY THIRD PARTY FOR ANY LOSS OR DAMAGE, DIRECT OR INDIRECT, FROM THE USE OF THIS DOCUMENTATION, INCLUDING WITHOUT LIMITATION, LOST PROFITS, LOST INVESTMENT, BUSINESS INTERRUPTION, GOODWILL, OR LOST DATA, EVEN IF CA IS EXPRESSLY ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH LOSS OR DAMAGE. -
Introduction to Xgrid: Cluster Computing for Everyone
Introduction to Xgrid: Cluster Computing for Everyone Barbara J. Breen1, John F. Lindner2 1Department of Physics, University of Portland, Portland, Oregon 97203 2Department of Physics, The College of Wooster, Wooster, Ohio 44691 (First posted 4 January 2007; last revised 24 July 2007) Xgrid is the first distributed computing architecture built into a desktop operating system. It allows you to run a single job across multiple computers at once. All you need is at least one Macintosh computer running Mac OS X v10.4 or later. (Mac OS X Server is not required.) We provide explicit instructions and example code to get you started, including examples of how to distribute your computing jobs, even if your initial cluster consists of just two old laptops in your basement. 1. INTRODUCTION Apple’s Xgrid technology enables you to readily convert any ad hoc collection of Macintosh computers into a low-cost supercomputing cluster. Xgrid functionality is integrated into every copy of Mac OS X v10.4. For more information, visit http://www.apple.com/macosx/features/xgrid/. In this article, we show how to unlock this functionality. In Section 2, we guide you through setting up the cluster. In Section 3, we illustrate two simple ways to distribute jobs across the cluster: shell scripts and batch files. We don’t assume you know what shell scripts, batch files, or C/C++ programs are (although you will need to learn). Instead, we supply explicit, practical examples. 2. SETTING UP THE CLUSTER In a typical cluster of three or more computers (or processors), a client computer requests a job from the controller computer, which assigns an agent computer to perform it. -
OS Structures and System Calls
COS 318: Operating Systems OS Structures and System Calls Kai Li Computer Science Department Princeton University (http://www.cs.princeton.edu/courses/cos318/) Outline Protection mechanisms OS structures System and library calls 2 Protection Issues CPU Kernel has the ability to take CPU away from users to prevent a user from using the CPU forever Users should not have such an ability Memory Prevent a user from accessing others’ data Prevent users from modifying kernel code and data structures I/O Prevent users from performing “illegal” I/Os Question What’s the difference between protection and security? 3 Architecture Support: Privileged Mode An interrupt or exception (INT) User mode Kernel (privileged) mode • Regular instructions • Regular instructions • Access user memory • Privileged instructions • Access user memory • Access kernel memory A special instruction (IRET) 4 Privileged Instruction Examples Memory address mapping Flush or invalidate data cache Invalidate TLB entries Load and read system registers Change processor modes from kernel to user Change the voltage and frequency of processor Halt a processor Reset a processor Perform I/O operations 5 x86 Protection Rings Privileged instructions Can be executed only When current privileged Level (CPR) is 0 Operating system kernel Level 0 Operating system services Level 1 Level 2 Applications Level 3 6 Layered Structure Hiding information at each layer Layered dependency Examples Level N THE (6 layers) . MS-DOS (4 layers) . Pros Level 2 Layered abstraction -
CA Top Secret R16 Security Target
CA Top Secret r16 Security Target ST Version: 1.0 August 18, 2017 3333 Warrenville Road Suite 800 Lisle, IL 60532 Prepared By: Cyber Assurance Testing Laboratory 304 Sentinel Drive, Suite 100 Annapolis Junction, MD 20701 Security Target CA Top Secret r16 Table of Contents 1 Security Target Introduction ................................................................................................................. 6 1.1 ST Reference ................................................................................................................................. 6 1.1.1 ST Identification ................................................................................................................... 6 1.1.2 Document Organization ........................................................................................................ 6 1.1.3 Terminology .......................................................................................................................... 7 1.1.4 Acronyms .............................................................................................................................. 8 1.1.5 References ............................................................................................................................. 9 1.2 TOE Reference .............................................................................................................................. 9 1.3 TOE Overview ............................................................................................................................. -
GEMTC: GPU Enabled Many-Task Computing
GEMTC: GPU Enabled Many-Task Computing Scott Krieder, Ioan Raicu Department of Computer Science Illinois Institute of Technology Chicago, IL USA [email protected], [email protected] Abstract— Current software and hardware limitations prevent acceleration on HPC resources. However, a programmability gap still Many-Task Computing (MTC) workloads from leveraging exists between applications and accelerators. Researchers and hardware accelerators (NVIDIA GPUs, Intel Xeon Phi) boasting developers are forced to work within the constraints of closed Many-Core Computing architectures. Some broad application environments such as the CUDA GPU Programming Framework[3] classes that fit the MTC paradigm are workflows, MapReduce, (for NVIDIA GPUs). The goal of this work is to improve the high-throughput computing, and a subset of high-performance performance of MTC workloads running on GPUs through the use of computing. MTC emphasizes using many computing resources the GEMTC framework. The CUDA framework can only support over short periods of time to accomplish many computational 16 kernels running concurrently, one kernel per streaming tasks (i.e. including both dependent and independent tasks), multiprocessor (SM). One problem with this approach is that where the primary metrics are measured in seconds. MTC has all kernels must start and end at the same time, causing extreme already proven successful in Grid Computing and inefficiencies in heterogeneous workloads. By working at the Supercomputing on MIMD architectures, but the SIMD architectures of today’s accelerators pose many challenges in the warp level, (which sits between cores and SMs) I can trade efficient support of MTC workloads on accelerators. This work local memory for concurrency, and I am able to run up to 200 aims to address the programmability gap between MTC and concurrent kernels. -
CICS Essentials Auditing CICS – a Beginner’S Guide
CICS Essentials Auditing CICS – A Beginner’s Guide Julie-Ann Williams Mike Cairns Martin Underwood Craig Warren ii CICS ESSENTIALS Foreword by Brian Cummings A thorough Audit Guide for CICS is something that is long overdue. This document provides a wealth of information about CICS, its operations, and its various resources and capabilities along with audit guidelines and recommendations. Various documents on AuditNet and other sources have taken a stab at parts or all of CICS, but are likely not up to date or sufficiently complete. CICS largely remains an environment that holds its mysteries against auditors and security officers alike. The results of poor understanding can lead to dangerous levels of unidentified risk to the applications and sensitive information of entities that use the power of CICS for critical business applications. Unlike any other environment, CICS security implementations fail in the first place because all of the security control is often only focused on transactions. Transactions are many levels of resources removed from the data files and data bases they query or update. In the end, we see the greatest level of security established for the least sophisticated technical users – end business users, and the least security facing the most technically sophisticated – the CICS sub-system programmer and the CICS Application programmer. For example, it is typical to leave FCT resources unsecured and to allow the CICS regions to have total rights to the data sets they access. This condition gives sub-system and application programmers full-reign to use CICS utilities to inherit the CICS regions’ authorities and gain full access to freely browse and update data. -
Real-Time Operating Systems with Example PICOS18
Real-Time Operating Systems With Example PICOS18 Sebastian Fischmeister 1 What is an Operating System? . A program that acts as an intermediary between a user of a computer and the computer hardware . Operating system goals: o Execute user programs and make solving user problems easier. o Make the computer system convenient to use . Use the computer hardware in an efficient manner CSE480/CIS700 S. Fischmeister 2 1 Computer System Components 1. Hardware – provides basic computing resources (CPU, memory, I/O devices) 2. Operating system – controls and coordinates the use of the hardware among the various application programs for the various users 3. Applications programs – define the ways in which the system resources are used to solve the computing problems of the users (compilers, database systems, video games, business programs) 4. Users (people, machines, other computers) CSE480/CIS700 S. Fischmeister 3 Abstract View of System Components CSE480/CIS700 S. Fischmeister 4 2 What is an RTOS? . Often used as a control device in a dedicated application such as controlling scientific experiments, medical imaging systems, industrial control systems, and some display systems . Well-defined fixed-time constraints CSE480/CIS700 S. Fischmeister 5 More Precisely? . The system allows access to sensitive resources with defined response times. o Maximum response times are good for hard real-time o Average response times are ok for soft real-time . Any system that provides the above can be classified as a real-time system o 10us for a context switch, ok? o 10s for a context switch, ok? CSE480/CIS700 S. Fischmeister 6 3 Taxonomy of RTOSs . -
402197 350 System Manual.Book
350 Cable Survey System System Manual Covers DeepView Software Version 5.x.x and Firmware Version 3.7 TSS (International) Ltd 1, Garnett Close Greycaine Industrial Estate Watford, Herts, WD24 7GL Telephone +44 (0)1923 470800 Facsimile +44 (0)1923 470842 24 hr Customer Support +44 (0)7899 665603 e-mail: [email protected] The information in this Manual is subject to change without notice and does not represent a commitment on the part of TSS (International) Ltd Document P/N 402197 Issue 2.4 abcdef January 2008 1 9 9 3 THE QUEEN'S AWARD FOR EXPORT ACHIEVEMENT Contents CAUTIONARY NOTICE This System Manual contains full installation and operating instructions and is an important part of the 350 System. This Manual should remain easily available for use by those who will install, operate and maintain the System. WARNINGS and CAUTIONS Where appropriate, this Manual includes important safety information. Safety infor- mation appears as WARNING and CAUTION instructions. You must obey these instructions: ❐ WARNING instructions alert you to a potential risk of death or injury to users of the 350 System. ❐ CAUTION instructions alert you to the potential risk of damage to the 350 System. For your convenience, the Table of Contents section includes copies of all the WARNING and CAUTION instructions contained in this Manual. Technical Support and contact information TSS (International) Ltd 1 Garnett Close, Greycaine Industrial Estate, Watford, Herts, WD24 7GL Tel: +44 (0)1923 470800 Fax: +44 (0)1923 470842 Out of UK Hours Technical Helpline: +44 (0)7899