• Title/Summary/Keyword: Architecture Dynamic Reconfiguration

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A Design of Management and Verification Tool of Component and A Development of SAM Simulator based on Dynamic Reconfiguration Architecture (컴포넌트 관리 및 검증도구 설계와 동적 재구성 아키텍처 기반 SAM 시뮬레이터 개발)

  • Suk, Jeebeom;Lee, Jaeoh;Lee, Jaejin;Seo, Yoonho
    • Journal of the Korea Society for Simulation
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    • v.22 no.2
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    • pp.1-10
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    • 2013
  • Modeling and simulation techniques construct experimental environment considering battlefields and are able to analyze performance of components of weapon system that closely resemble reality. However, developed model has low scalability and not cared reusability because it has been used only in a limited range of domain. In this paper, we develop a verification tool to verify reusability of developed component for dynamic reconfiguration and to judge scalability of it and a management tool to control data of it effectively. In addition, dynamic reconfiguration architecture of guided weapon systems designed in the previous study has been applied to SAM(Surface to Air Missile) System Simulator, and we study effectiveness of the developed component. Thus the user can configure various guided weapon systems through simulation application of dynamic reconfiguration architecture of component.

Implementation of H.264/AVC Deblocking Filter on 1-D CGRA (1-D CGRA에서의 H.264/AVC 디블록킹 필터 구현)

  • Song, Sehyun;Kim, Kichul
    • Journal of IKEEE
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    • v.17 no.4
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    • pp.418-427
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    • 2013
  • In this paper, we propose a parallel deblocking filter algorithm for H.264/AVC video standard. The deblocking filter has different filter processes according to boundary strength (BS) and each filter process requires various conditional calculations. The order of filtering makes it difficult to parallelize deblocking filter calculations. The proposed deblocking filter algorithm is performed on PRAGRAM which is a 1-D coarse grained reconfigurable architecture (CGRA). Each filter calculation is accelerated using uni-directional pipelined architecture of PRAGRAM. The filter selection and the conditional calculations are efficiently performed using dynamic reconfiguration and conditional reconfiguration. The parallel deblocking filter algorithm uses 225 cycles to process a macroblock and it can process a full HD image at 150 MHz.

A Design and Verification of MOSAIC Architecture Based on Self-Adaptive Software for the Military Mobile Equipment (군 모바일 단말기를 위한 자가적응 소프트웨어 기반 MOSAIC 아키텍처 설계 및 검증)

  • Kim, Jong-Young;Yoon, Hee-Byung
    • Journal of the Korea Institute of Military Science and Technology
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    • v.13 no.5
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    • pp.852-860
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    • 2010
  • An environment in which the software is operated become more complex and changed dynamically. Such software requires the ability to adapt in accordance with operating environments, by monitoring the changes of user requirements and operating environments. Especially, the mobile device used in military operation requires more dynamical adaptation than the mobile device in normal environment. In this paper, we propose MOSAIC architecture based on Self-Adaptive Software suitable for military mobile device and verify the results. The proposed architecture consists of context manager, evaluation manager and adaptation manager. We simulate the MOSAIC architecture by modelling PRE(Position Reporting Equipment) used in the army and verify four types of operational mode and dynamical reconfiguration of user interface.

Reconfigurable FIR Filter Design Using Partial Reconfiguration (부분 재구성 방법을 이용한 재구성형 FIR 필터 설계)

  • Choi, Chang-Seok;Lee, Han-Ho
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.44 no.4
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    • pp.97-102
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    • 2007
  • This paper presents our implemented, synthesized and tested on demand and partial reconfiguration approaches for FIR filters using Xilinx Virtex FPGAs. Our scope is implementation of a low-power, area-efficient autonomously reconfigurable digital signal processing architecture that is tailored for the realization of arbitrary response FIR filters on Xilinx Virtex4 FPGAs. The implementation of design addresses area efficiency and flexibility allowing dynamically inserting and/or removing the partial modules to implement the partial reconfigurable FIR filters with various taps. This partial reconfigurable FIR filter design shows the configuration time improvement, good area efficiency and flexibility by using the dynamic partial reconfiguration method.

Design and Implementation of Integration Application Framework Supporting Dynamic Configuration (동적 형상 변경 관리를 지원하는 통합 애플리케이션 프레임워크의 설계 및 구현)

  • Lee, Yong-Hwan;Min, Du-Gki
    • Journal of Information Technology Services
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    • v.4 no.1
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    • pp.117-128
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    • 2005
  • When we conduct development of a large-size SI project, it is highly necessary to utilize an appropriate application framework which helps to build a qualified software with high productivity in a short period of time. In this paper, we propose the architecture of a dynamically reconfigurable CBD application integration framework that has been used for developing large-scale e-business applications to achieve high development productivity and maintainability. This Integration framework can easily extend its functionalities, and dynamically change its configuration during run time according to the business category, such as applying interaction patterns among main components in software architecture, rules, policies, and environmental parameters. Dynamic reconfiguration has the feature to make applications be easily customized for changeable requirements. Through our application integration framework, huge sizes of contents can be managed according to the business category as well, by keeping configuration informations and huge volumes of source codes. In order to evaluate out application integration framework in terms of performance criteria, we present experimental results of throughputs from the framework by yielding dynamic configuration without any performance degradation.

A Development of The Dynamic Reconfigurable Components based on Software Product Line : Guided Weapon System (소프트웨어 프로덕트 라인공학을 적용한 동적 재구성 컴포넌트 개발 : 유도무기체계)

  • Lee, Jae-Oh;Lee, Jae-Jin;Suk, Jee-Beom;Seo, Yoon-Ho
    • Journal of the Korea Society for Simulation
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    • v.19 no.4
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    • pp.179-188
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    • 2010
  • The concern of Software Product Line(SPL) engineering is spreading widely because the program or product developers are able to satisfy the customer's demands quickly and give a way to handle maintenance efficiently. SPL is a reuse paradigm that reuse common parts and adopts variable parts optionally to form a differentiated product by analyzing domains. Purposes of this paper are to design an architecture which has a dynamic reconfiguration function and to develop basic components which are the basic unit of reconfiguration to raise the reuse level of the guided weapon system using the SPL. Initially we design an architecture and define basic components for developing a dynamic reconfigurable components based on SPL. Then we develop the composer for physical components and behavior components referenced by behavior models of OneSAF.

Knowledge-driven Dynamic Capability and Organizational Alignment: A Revelatory Historical Case

  • Kim, Gyeung-Min
    • Asia pacific journal of information systems
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    • v.20 no.1
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    • pp.33-56
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    • 2010
  • The current business environment has been characterized as less munificent, highly uncertain and constantly evolving. In this environment, the company with dynamic capability is reported to be more successful than others in building competitive advantage. Dynamic capability focuses on the link between a dynamically changing environment, strategic agility, architectural reconfiguration, and value creation. Being characterized to be flexible and adaptive to market circumstance changes, an organization with dynamic capability is described to have high resource fluidity, which represents business process, resource allocation, human resource management and incentives that make business transformation faster and easier. Successful redeployment of the resources for dynamic adaptation requires organizational forms and reward systems to be well aligned with firm's technological infrastructures and business process. The alignment is considered to be an executive level commitment. Building dynamic capability is knowledge driven; relying on new knowledge to reconfigure firm's resources. Past studies established the link between the effective execution of a knowledge-focused strategy and relevant setting of architectural elements such as human resources, structure, process and information systems. They do not, however, describe in detail the underlying processes by which architectural elements are adjusted in coordinated manners to build knowledge-driven dynamic capability. In fact, understandings of these processes are one of the top issues in IT management. This study analyzed how a Korean corporation with a knowledge-focused strategy aligned its architectural elements to develop the dynamic capability and thus create value in the dynamically changing markets. When the Korean economy was in crisis, the company implemented a knowledge-focused strategy, restructured the organization's architecture by which human and knowledge resources are identified, structured, integrated and coordinated to identify and seize market opportunity. Specifically, the following architectural elements were reconfigured: human resource, decision rights, reward and evaluation systems, process, and IT infrastructure. As indicated by sales growth, the reconfiguration helped the company create value under an extremely turbulent environment. According to Ancona et al. (2001), depending on the types of lenses the organization uses, different types of architecture will emerge. For example, if an organization uses political lenses focusing on power, influence, and conflict. the architecture that leverage power and negotiate across multiple interest groups would emerge. Similarly, if an organization uses economic lenses focusing on the rational behavior of organizational actors making choices based on the costs and benefits of action, organizational architecture should be designed to motivate and provide incentives for the actors (Smith, 2001). Compared to this view, information processing perspectives consider architecture to be designed to maximize the capacity of information processing by the actors. Using knowledge lenses, the company studied in this research established architectural elements in a manner that allows the firm to effectively structure knowledge resources to form dynamic capability. This study is revelatory single case with a historic perspective. As a result of this study, a set of propositions and a framework are derived, which can be used for architectural alignment.

A Job Allocation Manager for Dynamic Remote Execution of Distributed Jobs in P2P Network (분산처리 작업의 동적 원격실행을 위한 P2P 기반 작업 할당 관리자)

  • Lee, Seung-Ha;Kim, Yang-Woo
    • Journal of Internet Computing and Services
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    • v.7 no.6
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    • pp.87-103
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    • 2006
  • Advances in computer and network technology provide new computing environment that were only possible with supercomputers before. In order to provide the environment, a distributed runtime system has to be provided, but most of the conventional distributed runtime systems lack in providing dynamic and flexible system reconfiguration depending on workload variance, due to a static architecture of fixed master node and slave working nodes. This paper proposes and implements a new model for distributed job allocation and management which is a distributed runtime system is P2P environment for flexible and dynamic system reconfiguration. The implemented systems enables job program transfer and management, remote compile and execution among cooperative developers based on P2P standard protocol Jxta platform. Since it makes dynamic and flexible system reconfiguration possible, the proposed method has some advantages in that it can collect and utilize idle computing resources immediately at a needed time for distributed job processing. Moreover, the implemented system's effectiveness and performance increase are shown by applying and processing the crawler jobs, in a distributed way, for collecting a large amount of data needed for internet search.

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Implementation of a FIR Filter on a Partial Reconfigurable Platform (부분 재구성 방법을 이용한 재구성형 FIR 필터 설계)

  • Choi, Chang-Seok;Oh, Young-Jae;Lee, Han-Ho
    • Proceedings of the IEEK Conference
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    • 2006.06a
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    • pp.531-532
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    • 2006
  • This paper presents our implemented, synthesized and tested on demand and partial reconfiguration approaches for FIR filters using Xilinx Virtex FPGAs. Our scope is to implement a low-power, area-efficient autonomously reconfigurable digital signal processing architecture that is tailored for the realization of arbitrary response FIR filters on Xilinx Virtex4 FPGAs. The implementation of design addresses area efficiency and flexibility allowing dynamically inserting and/or removing the partial modules to implement the partial reconfigurable FIR filters with various taps. This partial reconfigurable FIR filter design shows the configuration time improvement, good area efficiency and flexibility by using the dynamic partial reconfiguration method.

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Dynamic Redundancy-based Fault-Recovery Scheme for Reliable CGRA-based Multi-Core Architecture

  • Kim, Yoonjin;Sohn, Seungyeon
    • JSTS:Journal of Semiconductor Technology and Science
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    • v.15 no.6
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    • pp.615-628
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    • 2015
  • CGRA (Coarse-Grained Reconfigurable Architecture) based multi-core architecture can be considered as a suitable solution for the fault-tolerant computing. However, there have been a few research projects based on fault-tolerant CGRA without exploiting the strengths of CGRA as well as their works are limited to single CGRA. Therefore, in this paper, we propose two approaches to enable exploiting the inherent redundancy and reconfigurability of the multi-CGRA for fault-recovery. One is a resilient inter-CGRA fabric that is ring-based sharing fabric (RSF) with minimal interconnection overhead. Another is a novel intra/inter-CGRA reconfiguration technique on RSF for maximizing utilization of the resources when faults occur. Experimental results show that the proposed approaches achieve up to 94% faulty recoverability with reducing area/delay/power by up to 15%/28.6%/31% when compared with completely connected fabric (CCF).