Software & Systems

Articles of journal № 4 at 2022 year.

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21. Implementing some of the Mantevo project applications on the OpenTS DMPI platform [№4 за 2022 год]
Authors: Osipov V.I., Matveev G.A., Roganov V.A.
Visitors: 1494
OpenTS is a system for parallel programming that supports dynamically loaded adapters for a communica-tion layer. The OpenTS system implements a T++ language for parallel computing, which is an extension of the C++ programming language. The syntax of the T++ language differs from the syntax of the C++ lan-guage by adding several keywords to it. The OpenTS system assimilates many other parallel programming technologies: a special shared memory model, a model of distributed threads and objects, distributed gar-bage collection, and, finally, a high-level language add-in, which is a technology unique in its characteristics to support maximum compatibility with traditional languages in syntax and semantics, but at the same time an effectively parallelizable computing model. The OpenTS system uses its own MPI implementation designed as the OpenTS DMPI dynamic library (Dynamic MPI). The OpenTS DMPI library provides a basic subset of functions from the MPI standard ei-ther by redirecting calls to the local MPI library installed on the target system, or on top of the TCP/IP proto-col. When initializing the OpenTS system, the DMPI subsystem is activated. This subsystem dynamically loads the local MPI library that is specified in the application environment variables. The developers of the OpenTS system implemented some of the MPI functions directly. The Mantevo project includes several parallel applications that implement algorithms for solving some partial differential equations: a molecular dynamics simulator, a simulator of linear electronic circuits and other applications. The paper briefly describes the implementation of the MiniAMR, MiniMD, MiniFE and MiniXyce appli-cations from the Mantevo project on the OpenTS DMPI library and compares the effectiveness of such im-plementation with the original MPI version of the application.

22. Implementing a system for searching for illegal financial services on the Internet based on a microservice architecture [№4 за 2022 год]
Author: Kochnev A.A.
Visitors: 1473
Due to the development of modern society digitalization, most of the financial transactions including fraud-ulent ones have moved to the Internet. When providing services remotely, it is more difficult to track down and hold the beneficiary accountable, but still there are ways to stop fraudulent activity. However they are due to high labor costs for monitoring and analysis, because huge amounts of unstructured information (BigData) are located on the Internet. At the heart of the solution to identify illegal activities in the financial market is intelligence based on open information sources including data search and collection for their sub-sequent analysis. The research subject area is methods of detecting fraud in the financial services market on the Internet. The paper raises the problem of organizing effective monitoring and detection of illegal financial activity cases under the conditions of digitalizing ways of providing services. The paper focuses on the issue of iden-tifying Internet resources on which financial services offers are placed without a license from the Bank of Russia. The paper proposes an approach to solving the problem of monitoring the provision of illegal finan-cial services in terms of searching and collecting thematic text data from the Internet based on a micro-service architecture using Apache Kafka distributed message broker software. The author presents an algo-rithm for searching and downloading data from Internet resources based on the proposed approach. The developed approach to searching and collecting data from thematic Internet resources has shown acceptable results and will be used as a microservice in the developed system of automated monitoring and detection of illegal financial services on the Internet.

23. System software for redundancy management of avionics complexes [№4 за 2022 год]
Authors: Ageev A.M., Novitsky L.V., Tsvetkov E.S., Shurman V.A.
Visitors: 1101
The paper presents the main results on the substantiation of functions, algorithms, software structure and features of the practical implementation of redundancy management system software (RMSS) intended for implementation in advanced avionics complexes. The authors use a method of managing the reconfiguration of heterogeneous redundant resources of on-board equipment based on configuration supervisors that are special software objects, each of which is cor-related with a specific configuration of equipment and performs all the procedures for preparing and imple-menting this configuration. The paper describes the main provisions of the developed approach based on configuration supervisors. It also presents the information structure of supervisors including a readiness buffer, configuration tables and functional efficiency indicators, monitoring modules, configuration arbitration, mode formation, man-agement, as well as auxiliary and buffer files. There is a presentation of the supervisor arbitration procedure including the stages of intercomputation and intersupervisory arbitration. The paper defines RMSS tasks and functions consisting in monitoring the condition, forming readiness indices and indicators of functional effi-ciency of configurations, adaptation to the complex operating modes, selection and implementation of con-figurations. The proposed RMSS structure includes a global, an external and internal levels implemented through configuration tables, executive procedures and buffer auxiliary files. The main features of the prac-tical implementation of RMSS in the onboard computing environment of integrated avionics with a real-time operating system are formulated. The proposed solutions and algorithms can be used in forming re-quirements and designing promising fault-tolerant on-board complexes with an excessive number of hetero-geneous resources, in developing appropriate on-board software.

24. Requirements for the software implementation of the Industrie 4.0 system for creating network enterprises [№4 за 2022 год]
Authors: Telnov, Yu.F., Kazakov, V.A., Danilov, A.V. , A.A. Denisov
Visitors: 2321
The digital transformation of enterprises based on the digital technologies leads to a radical change in busi-ness models and the formation of new organizational and production structures, which include network en-terprises. Network enterprises as dynamically formed production structures in the business ecosystem that unite many enterprises participating in joint economic activity; in modern conditions they are based on digi-tal platforms. Nowadays, an approach to building digital platforms is actively developing within the frame-work of the Industrie 4.0. The subject of the study is to determine the requirements for software implementa-tion of Industrie 4.0 systems (i4.0 systems) based on digital platforms using multi-agent technologies and an ontological approach. As a research method, the authors propose to use the method of decomposing the i4.0 system into plat-form software components and software administrative shells related to managing and functioning of net-work enterprise resources (assets) – i4.0 components. The reference architectural model of the Industrie 4.0 (RAMI 4.0) is chosen as the basis for building the architecture of the i4.0 system. It is proposed to use an on-tological approach in order to implement multi-agent interaction of i4.0 components within the framework of building the value-added chain of a network enterprise. The main results of the study are the formulated requirements for the software implementation of the i4.0 system with regard to the i4.0 platform software components formation and the software administrative shells of the i4.0 components at the levels of the RAMI architecture. As a software mechanism for the inter-action of i4.0 components the paper proposes an algorithm for the i4.0-components interaction using a do-main ontology. The software implementation of the formulated requirements for constructing the i4.0 system architec-ture will increase the flexibility and efficiency of creating and functioning of value-added chains of network enterprises in the dynamically developing business ecosystem of industrial manufacturing of products and services.

25. Unification of a data presentation model and format conversion based on a non-relational Neo4j DBMS [№4 за 2022 год]
Authors: Eremeev, A.P. , Paniavin N.A.
Visitors: 2428
Nowadays, due to the digitalization concept, a lot of software tools have appeared, including those using ar-tificial intelligence methods that process large data streams (big data) of varying degrees of complexity. Voice assistants, chat bots, search recommender systems not only use incoming up-to-date data, but also store and analyze changes in this data, the number of which is constantly growing. Under the conditions of a combinatorial explosion hazard, the multidimensional modeling problems, the efficient requests processing, and the necessary information extraction arise. This article presents the analysis of the possibility of increasing the efficiency of multidimensional OLAP modeling and temporal data extraction based on built-in software components offered by the non-relational DBMS Neo4j. The choice of a graph DBMS is due to the absence of the need to strictly fix the da-ta structure at the initial stage, as well as on the flexibility of the data presentation structure itself, which can change as new information becomes available. Making changes to strict pre-fixed relational table views is an expensive operation. The typical way to store temporal data (time moments and intervals) is to store timestamps as node at-tributes. At the same time, this option for storing and handling events may not be effective enough in the case of a large dimension of the data representation. The experimental results have shown that the graph of a multidimensional data cube can be projected onto the coordinate axes in the form of separate temporal slices, where the abscissa axis displays the event start time, and the ordinate axis displays its end time. Additional axes, if necessary, can be introduced to de-termine the cause-effect relationship of processes occurring simultaneously in time. At the same time, the rules of Allen's temporal logic will be supported. The paper considers the possibility of unifying the representation model of the internal data structure of varying complexity based on graphs.

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