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Sunday, April 26, 2020 | History

1 edition of Parallel Execution of Logic Programs found in the catalog.

Parallel Execution of Logic Programs

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Published by Springer US in Boston, MA .
Written in English

    Subjects:
  • Computer science,
  • Artificial intelligence

  • Edition Notes

    Statementby John S. Conery
    SeriesThe Kluwer International Series in Engineering and Computer Science, Parallel Processing and Fifth Generation Computing -- 25, Kluwer international series in engineering and computer science -- 25.
    Classifications
    LC ClassificationsQ334-342, TJ210.2-211.495
    The Physical Object
    Format[electronic resource] /
    Pagination1 online resource (160 pages).
    Number of Pages160
    ID Numbers
    Open LibraryOL27079705M
    ISBN 101461291879, 1461319870
    ISBN 109781461291879, 9781461319870
    OCLC/WorldCa852788814

    Increased program throughput—parallel execution of a concurrent program allows the number of tasks completed in a given time to increase proportionally to the number of processors according to Gustafson's law High responsiveness for input/output—input/output-intensive programs mostly wait for input or output operations to complete. -equipped with input and output modules. -equipped with a control programming language. -designed for the industrial environment. -reading the control logic, evaluating the outputs, and updating the inputs. -writing the control logic, evaluating the outputs, and updating the inputs. -reading/writing the status of inputs and updating the outputs.   This article walks through the development of a technique for running Spark jobs in parallel on Azure Databricks. The technique enabled us to reduce the processing times for JetBlue's reporting threefold while keeping the business logic implementation straight forward. The technique can be re-used for any notebooks-based Spark workload on Azure Databricks. Programming paradigms are a way to classify programming languages based on their features. Languages can be classified into multiple paradigms. Some paradigms are concerned mainly with implications for the execution model of the language, such as allowing side effects, or whether the sequence of operations is defined by the execution paradigms are concerned mainly .


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Parallel Execution of Logic Programs by John S. Conery Download PDF EPUB FB2

This book is an updated version of my Ph.D. dissertation, The AND/OR Process Model for Parallel Interpretation of Logic Programs.

The three years since that paper was finished (or so I thought then) have seen quite a bit of work in the area of parallel execution models and programming languages forBrand: Springer US.

This book is an updated version of my Ph.D. dissertation, The AND/OR Process Model for Parallel Interpretation of Logic Programs.

The three years since that paper was finished (or so I thought then) have seen quite a bit of work in the area of parallel execution models and programming languages for logic by: Logic programming refers to execution of programs written in Horn logic.

Among the advantages of this style of programming are its simple declarativeand procedural semantics, high expressive power and inherent nondeterminism. This book is an updated version of my Ph.D.

dissertation, The AND/OR Process Model for Parallel Interpretation of Logic Programs. The three years since that paper was finished (or so I thought then) have seen quite a bit of work in the area of parallel execution models and programming languages for logic programs.

The three essential issues in parallel execution of logic programs which the papers address are: Which form(s) of parallelism (or-parallelism, and-parallelism, stream parallelism, data-parallelism, etc.) will be exploited.

Relation to Software. Programmers with experience in multi-threaded software may quickly relate to the idea of synchronous parallel execution, although there are some fine points that are worth discussing.

In software, all instructions are considered to be executed sequentially, one. The aim of this book is to present parallel and constraint logic programming, offering a basic understanding of the two fields to the reader new to the area.

The first part of the book gives an introduction to the fundamental aspects of conventional logic programming which is necessary for understanding the parts that : Paperback. parallel execution of logic program has been designed, which is superior to the other proposed models in the same framework.

The new model presented in this thesis is. The book Parallel and Distributed Logic Programming provides a clear introduction to parallel and distributed approach to logic programming. It examines the existing models of distributed logic programming, analyses the pros and cons of these models, and proposes an alternative framework for distributed logic programming using extended Petri nets.

Some Paradigms for Visualizing Parallel Execution of Logic Programs. This work is about the AND/OR Process Model, an abstract model for parallel execution of logic programs.

This book defines a framework for implementing parallel interpreters. The research presented here provides an intermediate level of abstraction between hardware and semantics, a set of requirements for a parallel interpreter running on a multiprocessor architecture.

Preface xi predicate logic including notions like language, interpretation, model, logical conse- quence, logical inference, soundness and nal section introduces the concept of substitution which is needed in subsequent chapters. Chapter 2 introduces the restricted language ofde nite programs and discusses the model-theoretic consequences of restricting the Size: 1MB.

Abstract: A parallel-execution model that can concurrently exploit AND and OR parallelism in logic programs is presented. This model employs a combination of techniques in an approach to executing logic problems in parallel, making tradeoffs among number of processes, degree of parallelism, and combination by: 6.

Additional Physical Format: Online version: Conery, John S. Parallel execution of logic programs. Boston: Kluwer Academic Publishers, © (OCoLC) In this dissertation, we have developed (an integrated in an advanced system for program analysis, debugging and optimization) a complete automatic granularity control system for logic programs Author: Facultad De Informatica.

This paper presents the implementation and performance results of anand-parallel execution model of logic programs on a shared-memory multiprocessor.

The execution model is meant for logic programs with "don't-know nondeterminism", and handles binding conflicts by Cited by: 1 Introduction Logic Programming Syntax Semantics Control Prolog Alternate Control Strategies Chapter Summary Parallelism in Logic Programs Models for OR Parallelism Models for AND Parallelism Low Level Parallelism Chapter Summary The AND/OR Process Model Oracle Messages OR Processes AND Processes.

The AND/OR Process Model is not a model for parallel execution of Prolog. Prolog is a high level programming language based on logic, but a Prolog program is not a logic program, in the same sense in which a Common Lisp programis not a “pureLisp” program.

Prologis one example of a system at the Implementation level of the hierarchy of. This work is about the AND/OR Process Model, an abstract model for parallel execution of logic programs. This book defines a framework for implementing parallel interpreters. AND-Parallel Execution of Logic Programs M.

Hermenegildo Department of Electrical and Computer Engineering The University of Texas at Austin; Austin, TX Abstract Although the sequential execution speed of logic programs has been greatly improved by the concepts introduced in the Warren Abstract Machine (WAM), parallel execution.

guages, and users program concurrent execution. The other direction aims at the parallel execution of pure logic or Prolog programs that involve searching.

Programmers may specify control only for guiding execu-tion. OR-parallelism was exploited first [2][26][8][43], and AND-parallelism has been incorporated also [9][16][45][15].

In logic programs, or-parallelism arises when multiple clause heads unify with a goal. The subgoals arising from these multiple matches can be executed in parallel.

There are three significant issues to he addressed in any or-parallel implemenbtion: 1. An or-parallel implementation must be able to represent multiple bindings for. The book presents two approaches to automatic partitioning and scheduling so that the same parallel program can be made to execute efficiently on widely different multiprocessors.

The first approach is based on a macro dataflow model in which the program is partitioned into tasks at compile time and the tasks are scheduled on processors at run. 1. The main purpose of multithreading is to provide simultaneous execution of two or more parts of a program to maximum utilize the CPU time.

A multithreaded program contains two or more parts that can run concurrently. Each such part of a program called thread. Threads are lightweight sub-processes, they share the common memory space.

Find many great new & used options and get the best deals for Lecture Notes in Computer Science: Parallel Execution of Parlog by A. Cheese (, Paperback) at the best online prices at eBay. Free shipping for many products. [the] promise of parallel computers, combined with the parallelism that seems to be available in the logic programming model, have lead to numerous attempts, which are still ongoing, to execute Prolog in parallel, and to devise novel concurrent programming languages based on the logic programming computation model.

The aim of this book is to present parallel and constraint logic programming, offering a basic understanding of the two fields to the reader new to the area. The first part of the book gives an introduction to the fundamental aspects of conventional logic programming which is necessary for understanding the parts that : Panagiotis Tsarchopoulos.

Abstract: We apply parallel heuristic solving techniques to the exponentially complex problem of interpretation of pure logic programs.

Parallel heuristics incorporated within the control strategy employed to solve logic programs are used to guide the search for a solution in parts of the search space most likely to yield a by: 2.

Parallel execution of temporal logic programs using dataflow computation. Write cascading and parallel execution threads; Who This Book Is For Computer science student or a professional Java programmer.

This work is a rigorous discussion of the application of functional interfaces, so prerequisites for this text include basic Java programming and object-oriented Java : Ralph Lecessi. Logic programming is a programming paradigm which is largely based on formal program written in a logic programming language is a set of sentences in logical form, expressing facts and rules about some problem domain.

Major logic programming language families include Prolog, answer set programming (ASP) and all of these languages, rules are written in the form of clauses.

B-LOG: A BRANCH AND BOUND METHODOLOGY FOR THE PARALLEL EXECUTION OF LOGIC PROGRAMS G. Lipovski and M. Hermenegildo Department of Electrical and Computer Engineering The University of Texas at Austin Austin, TX Abstract: We propose a computational methodology -"B-LOG"- which offers the potential for an.

Parallel Logic Programming brings to light practical applications of a previously esoteric/theoretical area of parallel logic programming and is unique in presenting programming hand-in-hand with performance analysis of real empirical measurements.

Highly parallel machines have been available for many years but, because advances in hardware have always outpaced progress in software. Knowledge representation, Logic, and Advanced Programming Laboratory Logic Programming •Definite programs –collection of first-order Horn clauses reachable(X): edge(Y,X), reachable(Y).

–semantics based on least Herbrand model •Normal programs –enter negation as failure color(X,red): node(X), not color(X,blue). –several. Software is supplied by PLC manufacturers to enable programs to be entered for use by a PLC. As an indication, the following outline is the procedure that would be used with Allen-Bradley software to program a sequential function chart.

With the SFC toolbar on the screen, the button for the item wanted is clicked and then dragged to the. A method for parallel execution of logic programs is presented. It uses REDUCE-OR trees instead of AND-OR or SLD trees. The REDUCE-OR trees represent logic-program computations in a manner suitable for parallel interpretation.

The REDUCE-OR process model is derived from the tree representation by providing a process interpretation of tree development, and devising efficient Cited by: Introduction to Parallel Execution.

Parallel execution is the ability to apply multiple CPU and I/O resources to the execution of a single database operation. It dramatically reduces response time for data-intensive operations on large databases typically associated with decision support systems (DSS) and data warehouses. Parallel processing is a very important technique for improving the performance of various software development and maintenance activities.

The purpose of this book is to introduce important techniques for parallel executation of high-level specifications of software systems. P-Prolog is put forward as an alternative proposal to the difficulties faced in the main research areas of parallel logic programmings, which have been studied.

P-Prolog provides the advantages of guarded Horn clauses while retaining don't know non-determinism where required. This monograph presents. The last reason for drawing ladder logic vertically is to set the order of execution. Order of execution is how the PLC will run your ladder logic.

To be more precise in what order your ladder logic instructions will be executed by the PLC. A PLC will always start at the top of your ladder logic and then execute its way down.

Relay Ladder Logic. @article{osti_, title = {Abstract machine based execution model for computer architecture design and efficient implementation of logic programs in parallel}, author = {Hermenegildo, M.V.}, abstractNote = {The term Logic Programming refers to a variety of computer languages and execution models based on the traditional concept of Symbolic Logic.VACE: A tool for visualizing and-or parallel execution of logic programs.

Runs on daVinci. Vaupel, Pontelli, Gupta. No longer maintained or available. Knowledgesheet: A Spread-sheet based tool for solving constraint satisfaction problems. Akhtar and Gupta.Home Conferences ISCA Proceedings ISCA '87 The sharing of environment in AND-OR-parallel execution of logic programs ARTICLE The sharing of environment in AND-OR-parallel execution of logic programs.