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Proceedings of the International Conference on High Performance Computing, Networking, Storage and Analysis

作者： Rohit Zambre Aparna Chandramowlishwaran University of California

Hybrid MPI+threads programming is gaining prominence, but, in practice, applications perform slower with it compared to the MPI everywhere model. The most critical challenge to the parallel efficiency of MPI+threads applications is slow MPI_THREAD_MULTIPLE performance. MPI libraries have recently made significant strides on this front, but to exploit their capabilities, users must expose the communication parallelism in their MPI+threads applications. Recent studies show that MPI 4.0 provides users with new performance-oriented options to do so, but our evaluation of these new mechanisms shows that they pose several challenges. An alternative design is MPI Endpoints. In this paper, we present a comparison of the different designs from the perspective of MPI's end-users: domain scientists and application developers. We evaluate the mechanisms on metrics beyond performance such as usability, scope, and portability. Based on the lessons learned, we make a case for a future direction.

关键词： MPI thread multiple MPI endpoints partitioned communication exascale computing message-oriented middleware MPI+OpenMP MPI+threads

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Software Toolkit for Development of Interoperable Communications in Data-driven Systems

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IFAC-PapersOnLine 2021年第1期54卷 845-850页

作者： Petri Kannisto Antti Kätkytniemi Matti Vilkko David Hästbacka Faculty of Information Technology and Communication Sciences P.O. box 553 33014 Tampere University Finland Faculty of Engineering and Natural Sciences P.O. box 589 33014 Tampere University Finland

The ease of software development, maintenance, commissioning and reconfiguration is paramount in industrial systems, because these must be adaptable to changes in customer demand and the evolution of production assets. Such adaptations are a core motivator in the fourth industrial revolution. Additionally, software applications should be able to communicate over the logical and geographical borders of production plants, regardless of software platforms and vendors. However, these issues remains unaddressed in current software tools, although a solution is reachable with a proper software toolkit. As a solution, this article introduces such a toolkit to support the development of industrial software systems. The toolkit implements a communication stack with both a communication protocol and an information model. The long-term goal is to enable all communication in industrial plants with such a toolkit regardless of software products, vendors and platforms. Additionally, the toolkit provides auxiliary tools to help in the development of industrial software, such as services to provide historical data for simulation purposes. As an outcome, the toolkit provides insight about the development needs of industrial communications.

关键词： message-oriented middleware Systems Integration Service-oriented Architecture Loose Coupling Scalability Industrial Cyber-physical Systems Copper Smelting Steel Production Online Life Cycle Assessment

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Big-Data Driven Digital Ecosystem Framework for Online Predictive Control 20

Big-Data Driven Digital Ecosystem Framework for Online Predi...

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12th International Conference on Management of Digital EcoSystems

作者： Suleykin, Alexander Bakhtadze, Natalya Panfilov, Peter RAS VA Trapeznikov Inst Control Sci Moscow Russia HSE Univ Dept Business Informat Moscow Russia

ISBN: (纸本)9781450381154

In this paper, Big-Data Driven Digital Ecosystem Framework (BDDDEF) for Online Predictive Control Systems is created. The proposed framework consists of different Agents, where each Agent is a distributed and virtual service. In our work, we provide solutions to the Big Data challenges in building Digital Ecosystems for Online Control including high volumes, velocity and variety of data, and the need for low data latency. We propose to use BDDDEF for building robust, reliable, fault-tolerant, scalable and high-loaded data pipelines for Online Predictive Control Systems. We review Big Data Main Systems for Online Predictive Control Architecture, review the literature for Digital Ecosystems design for Control Systems Online, design and describe main features, main architectural components and functional architecture of the framework, and finally, propose new Predictive Control methodology for Online Predictions.

关键词： Big Data Digital ecosystem framework Predictive control In-memory computing message-oriented middleware

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Efficiently Composing Validated Systems Integration Gateways for Dynamic, Diverse Data

Efficiently Composing Validated Systems Integration Gateways...

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IEEE Military Communications Conference (MILCOM)

作者： Rock, Colleen T. Soule, Nathaniel Toll, Benjamin Do, Emily Milligan, James R. Paulini, Matthew S. Raytheon BBN Technol Intelligent Software Syst Dept Cambridge MA 02138 USA Air Force Res Lab Rome NY USA

ISBN: (纸本)9781728142807

Software systems typically evolve independently from one another. Integration opportunities and benefits only become apparent when new users or organizations adopt the system into the composition of a new system of systems solution, typically when new use cases are identified, or tangential needs arise. This leads to systems designed to use different data formats, network protocols, interaction patterns, and other disparities unable to natively communicate with each other. When integration does occur, it is often with custom one-off solutions that bridge the networks and systems in question. While integration may be plausible and even successful, these solutions tend to be costly, slow to produce, and tightly coupled to the specific systems or, even worse, specific versions of systems that they are connecting. In this paper we examine ROGER, a composable and dynamic gateway building framework that helps to address these integration costs and complexities. The ROGER framework abstracts away the common infrastructure needed in any system-bridging middleware, fosters reuse and capability sharing through a composition-driven plug-in framework, and allows for rapid gateway construction through a policy-centric composition structure. ROGER seeks to shorten integration gateway development time, reduce the amount of code creation required to build and deploy new gateways, as well as enable in-mission adaptation and extension of gateway capabilities as mission parameters and system awareness dictates. At the heart of this dynamism and adaptability in ROGER is the Information Flow Policy (IFP), a domain specific language that describes processing pipelines over incoming data streams. This paper presents the design of the compositional model and of the IFP that describes and enables the composition. We use a set of ROGER gateways as a dataset, along with a representative case study, in initial evaluations that show promising results regarding ROGER' s ability to reduce develop

关键词： gateway integration framework framework-specific modeling language validation plug-ins code reuse dataflow message-oriented middleware

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Implementing IoT Systems in Service-oriented Architecture

Implementing IoT Systems in Service-Oriented Architecture

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Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT)

作者： Papulovskaya, Nataliya Izotov, Ilya Orekhov, Pavel Ural Fed Univ Ekaterinburg Russia

ISBN: (纸本)9781538683644

The article presents the analysis of the existing Internet of Things ( IoT) systems, identifies three levels of application: household, civil and industrial. The shortcomings of the implementations associated with the popular client-server architecture are revealed. The possibility of building scalable solutions in a service-oriented architecture is considered. Argued the merits of such decisions, providing compatibility, fault tolerance and security at any level of the application of the IoT system. The description of the developed automatic room ventilation system and intersection counting system with data transmission over a radio channel are given as examples.

关键词： scalability microcontrollers service-oriented systems engineering message-oriented middleware client-server systems Internet of Things

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Geolocated Alert Services on E-Government Based on Messagge oriented middleware

Geolocated Alert Services on E-Government Based on Messagge ...

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Conferencia Latinoamericana En Informatica (CLEI)

作者： Raquel Sosa Miguel Merlino Instituto de Computación Facultad de Ingeniería Universidad de la República Facultad de Ingeniería Universidad de la República

ISBN: (纸本)9781728104386

Uruguay is one of the most advanced countries on E-Government of the region. Citizens can interact with a lot of public offices through web sites or email, among others. In the last years there have been advances on e-identity and realtime massive communications, for example by Twitter. In the business sector there are several offers on Location Based Services: such as meal deliveries or community mobile applications (for example as citycop). Some goverment agencies are already generating geolocalized alerts, but they communicate them through general channels like web sites. This work proposes an extention of the existing E-Government Platform, with a MOM-based component that allows any public office to send location-based notices and alerts. This permits that citizens subscribe to topics of interest, and receive only the notifications of their interest given that they are in the affected area.

关键词： Method of moments Geology Electronic government message-oriented middleware Publish-subscribe Global Positioning System

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Performance Analysis of RESTful API and RabbitMQ for Microservice Web Application

Performance Analysis of RESTful API and RabbitMQ for Microse...

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International Conference on Information and Communication Technology Convergence (ICTC)

作者： Xian Jun Hong Hyun Sik Yang Young Han Kim School of Electronic Engineering Soongsil University Seoul Korea

In order to explore the communication methods of microservice web application, this paper uses RabbitMQ and REST API respectively as the message-oriented middleware of microservice web applications. We do experiments with both of the methods under various number of users to compare and evaluate their performance in different circumstances. The purpose is to provide understanding inside the two methods for microservice web applications so that service providers can select the appropriate method based on their need. Obtained experimental results show that when a large number of users send requests to the web application at the same time, it is more stable to use RabbitMQ as the message-oriented middleware than the REST API communication method.

关键词： Computer architecture Service-oriented architecture Logic gates Protocols message-oriented middleware Uniform resource locators

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Design Criteria to Architect Continuous Experimentation for Self-Driving Vehicles

Design Criteria to Architect Continuous Experimentation for ...

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IEEE International Conference on Software Architecture (ICSA)

作者： Giaimo, Federico Berger, Christian Chalmers Univ Technol Dept Comp Sci & Engn Gothenburg Sweden Univ Gothenburg Dept Comp Sci & Engn Gothenburg Sweden

ISBN: (纸本)9781509057290

The software powering today's vehicles surpasses mechatronics as the dominating engineering challenge due to its fast evolving and innovative nature. In addition, the software and system architecture for upcoming vehicles with automated driving functionality is already processing similar to 750MB/s - corresponding to over 180 simultaneous 4K-video streams from popular video-on-demand services. Hence, self-driving cars will run so much software to resemble "small data centers on wheels" rather than just transportation vehicles. Continuous Integration, Deployment, and Experimentation have been successfully adopted for software-only products as enabling methodology for feedback-based software development. For example, a popular search engine conducts similar to 250 experiments each day to improve the software based on its users' behavior. This work investigates design criteria for the software architecture and the corresponding software development and deployment process for complex cyber-physical systems, with the goal of enabling Continuous Experimentation as a way to achieve continuous software evolution. Our research involved reviewing related literature on the topic to extract relevant design requirements. The study is concluded by describing the software development and deployment process and software architecture adopted by our self-driving vehicle laboratory, both based on the extracted criteria.

关键词： Automotive application Autonomous automobiles Intelligent vehicles Cyber-physical systems message-oriented middleware Open-source software Software architecture Software engineering Software systems

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A Scalable and Secure System Architecture for Smart Buildings

A Scalable and Secure System Architecture for Smart Building...

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作者： Georgios LILIS ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE

学位级别：博士

Recent years has seen profound changes in building technologies both in Europe and worldwide. With the emergence of Smart Grid and Smart City concepts, the Smart Building has attracted considerable attention and rapid development. The introduction of novel information and communication technologies (ICT) enables an optimized resource utilization while improving the building performance and occupants' satisfaction over a broad spectrum of operations. However, literature and industry have drawn attention to certain barriers and challenges that inhibit its universal adoption. The Smart Building is a cyber-physical system, which as a whole is more than the sum of its parts. The heterogeneous combination of systems, processes, and practices requires a multidisciplinary research. This work proposes and validates a systems engineering approach to the investigation of the identified challenges and the development of a viable architecture for the future Smart Building. Firstly, a data model for the building management system (BMS) enables a semantic abstraction of both the ICT and the building construction. A high-level application programming interface (API) facilitates the creation of generic management algorithms and external applications, independent from each Smart Building instance, promoting the intelligence portability and lowering the cost. Moreover, the proposed architecture ensures the scalability regardless of the occupant activities and the complexity of the optimization algorithms. Secondly, a real-time message-oriented middleware, as a distributed embedded architecture within the building, empowers the interoperability of the ICT devices and networks and their integration into the BMS. The middleware scales to any building construction regardless of the devices' performance and connectivity limitations, while a secure architecture ensures the integrity of data and operations. An extensive performance and energy efficiency study validates the proposed design. A

关键词： smart building intelligent building systems thinking scalable architectures energy management building management systems building data model real-time architectures distributed computing message-oriented middleware ICT interoperability architectures discrete event system parallel architectures building emulation

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Revisiting actor programming in C plus

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COMPUTER LANGUAGES SYSTEMS & STRUCTURES 2016年 45卷 105-131页

作者： Charousset, Dominik Hiesgen, Raphael Schmidt, Thomas C. Univ Hamburg Appl Sci Internet Technol Grp Dept Informat HAW Hamburg Berliner Tor 7 D-20099 Hamburg Germany

The actor model of computation has gained significant popularity over the last decade. Its high level of abstraction makes it appealing for concurrent applications in parallel and distributed systems. However, designing a real-world actor framework that subsumes full scalability, strong reliability, and high resource efficiency requires many conceptual and algorithmic additives to the original model. In this paper, we report on designing and building CAF, the C++ Actor Framework. CAF targets at providing a concurrent and distributed native environment for scaling up to very large, high-performance applications, and equally well down to small constrained systems. We present the key specifications and design concepts in particular a message transparent architecture, type-safe message interfaces, and pattern matching facilities that make native actors a viable approach for many robust, elastic, and highly distributed developments. We demonstrate the feasibility of CAF in three scenarios: first for elastic, upscaling environments, second for including heterogeneous hardware like GPUs, and third for distributed runtime systems. Extensive performance evaluations indicate ideal runtime at very low memory footprint for up to 64 CPU cores, or when offloading work to a GPU. In these tests, CAF continuously outperforms the competing actor environments Erlang, Charm++, SalsaLite, Scala, ActorFoundry, and even the raw message passing framework OpenMPI. (C) 2016 Elsevier Ltd. All rights reserved.

关键词： C plus plus Actor framework Concurrent programming message-oriented middleware Distributed software architecture GPU computing Performance analysis

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