Download or read book Analysis and Synthesis of Concurrent Sequential Programs written by Stanford University. Stanford Electronics Laboratories and published by . This book was released on 1970 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: The paper presents analysis and synthesis procedures for a class of sequential programs. The procedures aid in the design of programs for parallel computer systems. In particular, the interactions of a given program with other programs or circuits in a system can be described precisely. The basis for the work is a model for parallel computer systems in which the operation of each component is described by a flow table and the components interact by changing values on interconnecting lines. The details of the model are discussed in another paper. The analysis procedure produces a flow table description of a program. In program synthesis, a flow table description is converted to a sequential program. Using flow table design procedures, a control program for the two-program mutual exclusion problem is produced. (Author).
Download or read book Verification of Sequential and Concurrent Programs written by Krzysztof Apt and published by Springer Science & Business Media. This book was released on 2010-10-14 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: HIS BOOK CONTAINS a most comprehensive text that presents syntax-directed and compositional methods for the formal veri?- T cation of programs. The approach is not language-bounded in the sense that it covers a large variety of programming models and features that appear in most modern programming languages. It covers the classes of - quential and parallel, deterministic and non-deterministic, distributed and object-oriented programs. For each of the classes it presents the various c- teria of correctness that are relevant for these classes, such as interference freedom, deadlock freedom, and appropriate notions of liveness for parallel programs. Also, special proof rules appropriate for each class of programs are presented. In spite of this diversity due to the rich program classes cons- ered, there exist a uniform underlying theory of veri?cation which is synt- oriented and promotes compositional approaches to veri?cation, leading to scalability of the methods. The text strikes the proper balance between mathematical rigor and - dactic introduction of increasingly complex rules in an incremental manner, adequately supported by state-of-the-art examples. As a result it can serve as a textbook for a variety of courses on di?erent levels and varying durations. It can also serve as a reference book for researchers in the theory of veri?- tion, in particular since it contains much material that never before appeared in book form. This is specially true for the treatment of object-oriented p- grams which is entirely novel and is strikingly elegant.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Verification of Sequential and Concurrent Programs written by Krzysztof R. Apt and published by Springer Science & Business Media. This book was released on 1997 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Software -- Software Engineering.
Download or read book Analysis of Parallel Systems written by Stanford University. Stanford Electronics Laboratories and published by . This book was released on 1970 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: A formal analysis procedure for parallel computer systems is presented. The flow table model is used to describe a system. Each component to the system is described by a completely specified fundamental-mode flow table. All delays in a parallel system are assumed to be finite. Component delays are assumed to be bounded and line delays unbounded. The concept of an output hazard is introduced to account for the effects of line delay and the lack of synchronization among components. Necessary and sufficient conditions for the absence of output hazards are given. (Author).
Download or read book Concurrent Programming written by C. R. Snow and published by Cambridge University Press. This book was released on 1992 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook is designed as a first book on concurrent programming for computer science undergraduates, and provides a comprehensive introduction to the problems of concurrency. Concurrency is of vital importance in many areas of computer science, particularly in operating systems. It is also increasingly being taught in undergraduate courses. The book builds on the student's familiarity with sequential programming in a high level language, which will make it very accessible to computer science students. The book is concerned mainly with the high level aspects of concurrency, which will be equally applicable to traditional time sliced or more recent truly parallel systems.
Download or read book Proceedings of the Princeton Conference on Information Sciences and Systems written by and published by . This book was released on 1971 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Origin of Concurrent Programming written by Per Brinch Hansen and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: An essential reader containing 19 important papers on the invention and early development of concurrent programming and its relevance to computer science and computer engineering. All of them are written by the pioneers in concurrent programming, including Brinch Hansen himself, and have introductions added that summarize the papers and put them in perspective. The editor provides an overview chapter and neatly places all developments in perspective with chapter introductions and expository apparatus. Essential resource for graduates, professionals, and researchers in CS with an interest in concurrent programming principles. A familiarity with operating system principles is assumed.
Download or read book Proceedings of the Annual Princeton Conference on Information Sciences and Systems written by Princeton Conference Dept. on Information Sciences and Systems and published by . This book was released on with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Artificial Intelligence written by Philip C. Jackson and published by Courier Dover Publications. This book was released on 2019-08-14 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Can computers think? Can they use reason to develop their own concepts, solve complex problems, understand our languages? This updated edition of a comprehensive survey includes extensive new text on "Artificial Intelligence in the 21st Century," introducing deep neural networks, conceptual graphs, languages of thought, mental models, metacognition, economic prospects, and research toward human-level AI. Ideal for both lay readers and students of computer science, the original text features abundant illustrations, diagrams, and photographs as well as challenging exercises. Lucid, easy-to-read discussions examine problem-solving methods and representations, game playing, automated understanding of natural languages, heuristic search theory, robot systems, heuristic scene analysis, predicate-calculus theorem proving, automatic programming, and many other topics.
Download or read book Proceedings written by and published by . This book was released on 1971 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Program Reliability Through Algorithmic Design and Analysis written by Roopsha Samanta and published by . This book was released on 2013 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Software systems are ubiquitous in today's world and yet, remain vulnerable to the fallibility of human programmers as well as the unpredictability of their operating environments. The overarching goal of this dissertation is to develop algorithms to enable automated and efficient design and analysis of reliable programs. In the first and second parts of this dissertation, we focus on the development of programs that are free from programming errors. The intent is not to eliminate the human programmer, but instead to complement his or her expertise, with sound and efficient computational techniques, when possible. To this end, we make contributions in two specific domains. Program debugging --- the process of fault localization and error elimination from a program found to be incorrect --- typically relies on expert human intuition and experience, and is often a lengthy, expensive part of the program development cycle. In the first part of the dissertation, we target automated debugging of sequential programs. A broad and informal statement of the (automated) program debugging problem is to suitably modify an erroneous program, say P, to obtain a correct program, say P'. This problem is undecidable in general; it is hard to formalize; moreover, it is particularly challenging to assimilate and mechanize the customized, expert programmer intuition involved in the choices made in manual program debugging. Our first contribution in this domain is a methodical formalization of the program debugging problem, that enables automation, while incorporating expert programmer intuition and intent. Our second contribution is a solution framework that can debug infinite-state, imperative, sequential programs written in higher-level programming languages such as C. Boolean programs, which are smaller, finite-state abstractions of infinite-state or large, finite-state programs, have been found to be tractable for program verification. In this dissertation, we utilize Boolean programs for program debugging. Our solution framework involves two main steps: (a) automated debugging of a Boolean program, corresponding to an erroneous program P, and (b) translation of the corrected Boolean program into a correct program P'. Shared-memory concurrent programs are notoriously difficult to write, verify and debug; this makes them excellent targets for automated program completion, in particular, for synthesis of synchronization code. Extant work in this domain has focused on either propositional temporal logic specifications with simplistic models of concurrent programs, or more refined program models with the specifications limited to just safety properties. Moreover, there has been limited effort in developing adaptable and fully-automatic synthesis frameworks that are capable of generating synchronization at different levels of abstraction and granularity. In the second part of this dissertation, we present a framework for synthesis of synchronization for shared-memory concurrent programs with respect to temporal logic specifications. In particular, given a concurrent program composed of synchronization-free processes, and a temporal logic specification describing their expected concurrent behaviour, we generate synchronized processes such that the resulting concurrent program satisfies the specification. We provide the ability to synthesize readily-implementable synchronization code based on lower-level primitives such as locks and condition variables. We enable synchronization synthesis of finite-state concurrent programs composed of processes that may have local and shared variables, may be straight-line or branching programs, may be ongoing or terminating, and may have program-initialized or user-initialized variables. We also facilitate expression of safety and liveness properties over both control and data variables by proposing an extension of propositional computation tree logic. Most program analyses, verification, debugging and synthesis methodologies target traditional correctness properties such as safety and liveness. These techniques typically do not provide a quantitative measure of the sensitivity of a computational system's behaviour to unpredictability in the operating environment. We propose that the core property of interest in reasoning in the presence of such uncertainty is robustness --- small perturbations to the operating environment do not change the system's observable behavior substantially. In well-established areas such as control theory, robustness has always been a fundamental concern; however, the techniques and results therein are not directly applicable to computational systems with large amounts of discretized, discontinuous behavior. Hence, robustness analysis of software programs used in heterogeneous settings necessitates development of new theoretical frameworks and algorithms. In the third part of this dissertation, we target robustness analysis of two important classes of discrete systems --- string transducers and networked systems of Mealy machines. For each system, we formally define robustness of the system with respect to a specific source of uncertainty. In particular, we analyze the behaviour of transducers in the presence of input perturbations, and the behaviour of networked systems in the presence of channel perturbations. Our overall approach is automata-theoretic, and necessitates the use of specialized distance-tracking automata for tracking various distance metrics between two strings. We present constructions for such automata and use them to develop decision procedures based on reducing the problem of robustness verification of our systems to the problem of checking the emptiness of certain automata. Thus, the system under consideration is robust if and only if the languages of particular automata are empty.
Download or read book Logic Based Program Synthesis and Transformation written by Moreno Falaschi and published by Springer. This book was released on 2015-12-16 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed post-conference proceedings of the 25th International Symposium on Logic-Based Program Synthesis and Transformation, LOPSTR 2015, held in Siena, Italy, in July 2015. The 21 revised full papers presented together with 3 invited talks were carefully reviewed and selected from 30 submissions. The aim of the LOPSTR series is to stimulate and promote international research and collaboration on logic-based program development. LOPSTR is open to contributions in all aspects of logic-based program development, all stages of the software life cycle, and issues of both programming-in-the-small and programming-in-the-large.
Download or read book The Architecture of Concurrent Programs written by Per Brinch Hansen and published by Prentice Hall. This book was released on 1977 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: “This book describes a method for writing concurrent computer program of high quality” -- Preface.
Download or read book Methodology for Introducing Concurrency Into Sequential Programs written by Xinghao Xu and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Efficiency of software application is one of the important metrics that are used to measure the quality of software applications. Nowadays, more and more professionals are focusing on programming technology because suitable programming may make the products more efficient. The emergence of multiprocessor systems and multi-core CPUs makes concurrent programs much more popular than sequential programs. However, a great number of large complex software applications that have already been released and are currently being used by many clients are programmed in sequential fashion. Compared to developing the program from scratch again, code refactoring with the concept of concurrent programming would be a better choice. It saves effort, time, manpower and money. This thesis studies the problems of introducing concurrency into large and complex software applications and proposes a methodology for transforming sequential programs into concurrent programs. We successfully speeded up a prototype of IBM Security AppScan Source for Analysis by introducing concurrency into the program. The performance of the application was improved, thus demonstrating the usefulness of the proposed methodology.
Download or read book Concurrent Programming written by Narain Gehani and published by Addison Wesley Publishing Company. This book was released on 1988 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Proceedings of the Fourth Conference on Hypercubes Concurrent Computers and Applications Software applications written by and published by . This book was released on 1989 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
