This goal is particularly challenging for modern object oriented languages with expressive use of reference aliasing and updates to shared mutable state. Historically, a program has been viewed as a logical procedure that takes input data, processes it, and produces output data. Parallel programming eiffel software the home of eiffelstudio. Demonstrates how the uml is used to document designs that require parallel or distributed programming. Object oriented parallel programming model on a network of. While programming, we should understand the fundamental concept of an object. We have used python to prototype and experiment with the use of a novel concurrent objectoriented programming model called atom.
The challenge of object oriented programming for parallel computing systems is to find an object model that fits in with the preferred models for parallel computation. Programming paradigms differ from one another based on the features and the style they support. Citeseerx document details isaac councill, lee giles, pradeep teregowda. We introduce an objectoriented framework for parallel programming, which is based on the observation that programming objects can be naturally interpreted as processes. S parallel programming system uses design patterns and objectoriented programming to reduce the complexities of parallel programming. A programming model is a collection of program abstraction providing a programmer a simplified and transparent view of computer hw and sw. Yau, xiaoping jia, and doohwan bae software engineering research center and computer and information sciences department, university of florida, gainesville, florida 32611 despite the rapid development of parallel computer architectures in recent years. The aim of both functional programming vs oop languages is to provide the bugfree code, which can be easily understandable, wellcoded, managed and rapid development. Objectoriented analysis and design introduction part 1. To address the previous said problem, in this paper we present a flexible, easy to use, and an effective object oriented parallel programming model by amalgamating the object orientation paradigm and parallelism. Difference between object oriented database and object. Gt90, uses a messagepassing parallel programming model and an object oriented paradigm. Object oriented programming oop is a programming paradigm based on the concept of objects, which can contain data, in the form of fields often known as attributes or properties, and code, in the form of procedures often known as methods.
Object oriented technology is both an evolution and a revolution as evolution it is the logical descendant of hll, procedures, libraries, structured programming, and abstract data types. Object oriented programming realizes the software design with an object oriented programming language that supports direct implementation of objects, classes, and inheritance. Difference between functional programming and object. In oop, we frequently discuss the particular features or characteristics of an object. It ends with a nice glossary, references, and indexes.
Objectoriented programming obiectoriented analysis develops an objectoriented model of the application domain. The main difference between object oriented database and object relational database is that object oriented database is a database that represents data in the form of objects like in object oriented programming while object relational database is a database that is based on the relational model and object oriented database model a database allows. In addition, little experience has been gained from the use of proposals addressing these issues. A dataparallel program consists of a sequence of such. Difference between functional programming and object oriented. Sharedvariable model messagepassing model data parallel model object oriented model functional and logic models. Object oriented design develops an object oriented model of the software system. The most common programming model for distributedmemory systems is message passing. Apr 17, 2014 we introduce an object oriented framework for parallel programming, which is based on the observation that programming objects can be naturally interpreted as processes. It has an enormous amount of existing code and inertia going for it. This article lists concurrent and parallel programming languages, categorizing them by a defining paradigm. May 02, 2019 the main difference between object oriented database and object relational database is that object oriented database is a database that represents data in the form of objects like in object oriented programming while object relational database is a database that is based on the relational model and object oriented database model.
An object oriented model for adaptive highperformance computing on the computational grid tuan anh nguyen. The book does a nice job of giving examples in plinq parallel linq and tpl task parallel library. A parallel objectoriented functional computation model. In the 1960s, objectoriented programming was put into practice with the simula language, which introduced important concepts that are today an essential part of objectoriented programming, such as class and object, inheritance, and dynamic binding. The second paper, parallel object oriented programming for parallel simulations, describes the work of francoise baude, fabrice belloncle, denis caromel, nathalie furmento, and yves roudier in the university of nice of sophia antipolis, france, and contributions of philippe mussi and gunther siegel in inria sophia antipolis. Object oriented programming oop is a programming language model organized around objects rather than actions and data rather than logic. Functional programming vs oop which one is more useful. An object oriented programming language oopl is a highlevel programming language based on the object oriented model. Simula was also designed to take account of programming and data security. In computer science, concurrency is the ability of different parts or units of a program, algorithm, or problem to be executed outoforder or in partial order, without affecting the final outcome.
Abstract the dissertation presents a new parallel programming paradigm for developing high performance hpc applications on the grid. Many modern programming languages are object oriented, however some older programming languages, such as pascal, do offer object. Concurrent objectoriented programming in python with atom. The actor model in computer science is a mathematical model of concurrent computation that treats actor as the universal primitive of concurrent computation. In this paper the object oriented model of control flow in parallel systems is presented. This research identifies the gaps between object oriented programming and openmp, and provides solutions to combine these two models in harmony. But, analysis and design may occur in parallel, and the results of one activity can be used by the other. Object passing provides the object oriented application developer with powerful yet simple methods to distribute and exchange data and logic objects among processes. Parallel programming must be deterministic by default. This allows for parallel execution of the concurrent units, which can significantly improve overall speed of the execution in multiprocessor and multicore systems. Commentary on parallel models evaluation, discussion, and advanced issues object oriented programming in fortran 90. His specialties include programming language design, advanced static analysis tools, formal methods, realtime systems, parallel programming, and model based development. This paper introduces an object passing model for parallel and distributed application development.
The programming model used in functional programming is a declarative programming model, while object oriented programming uses the imperative programming model. Using object oriented programming techniques, a generic implementation framework is devised. Some languages have even had object oriented features retrofitted. Contains the new posixunix ieee standard for the pthreads library. Software engineering objectoriented life cycle model. All the same make and model have an engine, wheels, doors.
Objectoriented modeling is the implementation of a model with an object oriented language and can reap the great benefits of modeling. List of concurrent and parallel programming languages. The oz programming model opm is a concurrent programming model that subsumes functional and object oriented programming as facets of a general model. Compare functional programming, imperative programming and. Functional java a java library that includes an implementation of concurrent actors with code examples in. Pdf object oriented model of parallel programs bogdan. During the construction or programming phase, the modeling techniques are implemented by using a language that supports the objectoriented programming model. To perform object oriented programming, one needs an object oriented programming language. He claimed that cmu would no longer teach object oriented programming in the introductory course sine it is unsuitable for a modern cs curriculum. In functional programs, variables and functions are the main elements of the code, while in object oriented programs, objects and methods are the key elements.
An equational objectoriented data model and its data. Parallel computing in network of workstations is receiving lot of attentions from the research community. Sheffler siddhartha chatterjee abstract this paper describes an implementation technique for integrating nested data parallelism into an object oriented language. Actors may modify their own private state, but can only affect. A parallel array is an array that stores another array in each element. Object oriented is a term which is interpreted differently by different people. Jan 04, 2017 object oriented programming oop is a software programming model constructed around objects. Apr 26, 2016 introduction to parallel programming in openmp 9,643 views 11. Parallel programming model is designed for vector computers.
The paper presents general concepts of object oriented parallel processing. And that is that, more and more, people are realizing that oop is not the solution to every problem. An instruction can specify, in addition to various arithmetic operations, the address of a datum to be read or written in memory andor the address of the next instruction to be executed. In this context, we discuss a simulator parallel programming model that has overlapping schwarz methods as its numerical foundation. The model is object oriented, what makes it suitable. Javact a java library for programming concurrent, distributed, and mobile applications using the actor model and open implementation principles. Data parallel programming employs sets of data called collections and expresses parallelism as operations. Notes on concept of object oriented programming grade 12. Shows object oriented approaches to multitasking and multithreading. Obiect oriented analysis develops an object oriented model of the application domain. Objectoriented programming oop is a programming language model organized around objects rather than actions and data rather than logic. A concurrent programming language is defined as one which uses the concept of simultaneously executing processes or threads of execution as a means of structuring a program.
This thesis addresses that a good parallel programming model should be closely incorporated with software design principles, especially object oriented programming concepts. Aug 22, 2008 procedural languages are not as good because theyre focused more on completing certain predefined tasks and not on capturing the concepts in the model. To say it was invented to help developers manage the code is entirely simplistic and. Difference between functional programming and object oriented programming a programming paradigm is a style, or way, of programming. Object oriented programming paradigms in scientific computing. An object oriented approach to nested data parallelism thomas j. This model compartmentalizes data into objects data fields and describes object contents and behavior through the declaration of classes methods. S parallel programming system uses design patterns and object oriented programming to reduce the complexities of parallel programming. The system generates correct frameworks from pattern template speci. Concurrency and distribution in objectoriented programming. For reconciling objectorientation and distributedmemory parallelism, this paper introduces oopp objectoriented parallel programming, a style of oop where objects are distributed by default. We have used python to prototype and experiment with the use of a novel concurrent object oriented programming model called atom. Functional programming and object oriented programming uses a.
An objectoriented approach to nested data parallelism. Tucker led the ada 9x language design team, culminating in the february 1995 approval of ada 95 as the first iso standardized object oriented programming language. This is particularly interesting for concurrent object oriented programming, for which no comprehensive and formal model existed until now. A parallel object oriented functional computation model stephen s.
The new standard object oriented fortran 90 programming encapsulation with derived types overview of modules inheritance and related issues generic programming and polymorphism the object oriented programming model. Objectoriented design develops an objectoriented model of the software system. In this paper we introduce an object oriented framework for parallel programming, which is based on the observation. A feature of objects is an object s procedures that can access and often modify the data fields. Objectoriented programming oop refers to a type of computer programming software design in which programmers define the data type of a data structure, and also the types of operations functions that can be applied to the data structure. Chapter 1 introduction to objectoriented programming. Objectoriented programming oop is a software programming model constructed around objects. The best definition i have heard that anyone can understand was in this interview of steve jobs its a wellknown fact that even without any formal engineering training, steve jobs had an unmatchable understanding of technology. An objectoriented parallel programming language for. Feb 03, 2015 parallel programming model, language and compiler in aca. Objectoriented modeling is the process of preparing and designing what the model s code will actually look like. This paper gives a detailed description of this framework and related issues. This paper presents an equational formulation of an object oriented data model.
A parallel program consists of a collection of persistent processes that communicate by executing remote methods. We discuss code parallelization and process persistence, and explain the main ideas in the context of. Since the 1980s the word object has appeared in relation to programming languages, with almost all languages developed since 1990 having object oriented features. In this paper we present the model s main features and illustrate their use for concurrent programming in python. Citeseerx an objectoriented model for developing parallel. It is widely accepted that objectoriented programming is the most important and powerful way of creating software. Parallel programming has been a subject of extensive research 5, 6, which led also to development of many specialized highlevel languages, such as the pgas programming languages 7. In response to a message it receives, an actor can. However, still it is faced with many practical difficulties. Parallel programming model, language and compiler in aca. An objectpassing model for parallel programming citeseerx. Object oriented programming is eliminated entirely from the introductory curriculum, because it is both antimodular and anti parallel by its very nature.
Object oriented modeling is the implementation of a model with an object oriented language and can reap the great benefits of modeling. For a librarybased solution there is no choicethe object model is given by the sequential language. Each car was built from the same set of blueprints and has the same components. Objectoriented patternbased parallel programming with.
It builds upon strong intuitive understanding of traditional control flow graphs of sequential programs. Safe parallel programming parasail, ada 202x, openmp. One of the major problems is the lack of high level programming model. In this model, a database is represented as a system of equations over a set of oids, and a database query is a transformation of a system of equations into another system of equations. It continues with some awesome appendices adapting object oriented patterns, debugging and profiling parallel applications, and technology overview. Functional programming and object oriented programming both are different concepts of programming language. Objectoriented modeling is the process of preparing and designing what the models code will actually look like. Scoop is a small language extension one keyword that revolutionizes the world of concurrent programming by enabling you to keep your usual modes of reasoning, honed over decades of progress in software engineering, in a concurrent context. The input for object oriented design is provided by the output of objectoriented analysis. Parallel objectoriented simulation environment pose pose is an environment for parallel discrete event simulation comprised of an object oriented language for modelling complex discrete event systems, new adaptive speculative optimistic synchronization strategies, communication libraries tuned to pdes behaviors and load balancers.
786 201 1486 1463 1113 147 194 264 1172 441 621 1383 872 622 87 122 1404 224 1302 365 1235 85 1479 163 41 396 865 1289 1236 7 353