• 디지털산업정보학회논문지
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• 제6권4호
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• pp.21-31
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• 2010

A manufacturing execution system in the process according to automation system of installation management has been growing interest about effective system design and effective system manage. In this paper, we propose an ubiquitous Manufacturing Execution System based on RFID/USN for checkup monitoring and history management of installation in manufacturing execution systems. For this, we design and implement installation history and statistics management system based on RFID grafting RFID for efficient installation equipment history and statistics management of ubiquitous Manufacturing Execution System, and was implemented checkup monitoring system based on USN using temperature sensor, humidity sensor, hydraulic pressure sensor for failure prevention of ubiquitous Manufacturing Execution System. And proposed ubiquitous Manufacturing Execution System is implemented based on JSP for access through Web in real time.

• 시스템엔지니어링학술지
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• 제13권1호
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• pp.73-78
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• 2017

Space development program is a large and complex system consisting of a multi-disciplinary high-end technologies and it is important to implement a program management system connected with systems engineering as well as to develop critical technologies. Major organizations in space fields carry out effective budget execution management and operation according to the strategy and objective of space development using information systems. Korea Space Launch Vehicle II(KSLV-II) has adopted a cost management plan using a system engineering to complete the program within the assigned schedule and budget. This paper introduces the budget execution management system applied to KSLV-II budget management and the budget execution dashboard system for supporting program decision making.

• 산업기술연구
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• 제26권B호
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• pp.215-220
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• 2006

Effective use of debugging in computer science education is a topic that has received little attention. Existing tools either are too overwhelming for the novice or are too basic and inflexible. Furthermore, the integration of the debugger into complex IDEs have unfamiliar debuggers from students, resulting in a harmful proliferation of console I/O. In this paper, a new stand-alone educational debugging tool is presented, with simple but powerful tools for easily observing and modifying program execution state. This tool is analyzed from an user perspective, and is compared with existing tools.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2009년도 추계학술대회 논문집
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• pp.743-744
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• 2009

• Journal of Information Processing Systems
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• 제17권6호
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• pp.1157-1169
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• 2021

Modern graphics processor unit (GPU) architectures offer significant hardware resource enhancements for parallel computing. However, without software optimization, GPUs continuously exhibit hardware resource underutilization. In this paper, we indicate the need to alter different warp scheduler schemes during different kernel execution periods to improve resource utilization. Existing warp schedulers cannot be aware of the kernel progress to provide an effective scheduling policy. In addition, we identified the potential for improving resource utilization for multiple-warp-scheduler GPUs by sharing stalling warps with selected warp schedulers. To address the efficiency issue of the present GPU, we coordinated the kernel-aware warp scheduler and warp sharing mechanism (KAWS). The proposed warp scheduler acknowledges the execution progress of the running kernel to adapt to a more effective scheduling policy when the kernel progress attains a point of resource underutilization. Meanwhile, the warp-sharing mechanism distributes stalling warps to different warp schedulers wherein the execution pipeline unit is ready. Our design achieves performance that is on an average higher than that of the traditional warp scheduler by 7.97% and employs marginal additional hardware overhead.

• 한국유기농업학회지
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• 제11권4호
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• pp.39-59
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• 2003

The purpose of this study is to introduce issues on agricultural policy of participatory government and to suggest some implications for national consensus. According to the finance and investment plan, 119 trillion won in total will be invested in the farming industry for improving the welfare system and development of the sector over the next 10 years. It is very important that this plan will make Korean farmers competitive and income per capita increased more and more. By the way, the plan has been argued by farmer’s organization(NGO) and some people of academic circles because there is a fair question as to how effective these investment aids will be. Therefore, the finance and investment plan must be established on the basis of effective execution system as well as additional discussion for national agreement. In addition, the 'Special Plan Committee for agriculture-fishery and farming-fishing communities' will work out an ideal framework for succeeding this plan.

• 한국정보과학회논문지:시스템및이론
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• 제29권11호
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• pp.601-610
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• 2002

태스크내부에서 공급 전압을 조절하는 태스크내 전압 스케쥴링(IntraVS)은 저전력 프로그램을 구현하는 데 효과적인 방법이다. 본 논문에서는 경성 실시간 응용프로그램에서 평균 실행 시간에 대한 정보를 이용하여 전력 소모를 효과적으로 줄이는 새로운 태스크내 전압 스케쥴링 알고리즘을 제시한다. 최악 실행 시간을 사용하여 전압 조절의 결정을 내렸던 기존의 태스크내 전압 스케줄링과는 달리, 제안된 알고리즘은 평균 실행 시간에 바탕을 두고 실행 속도를 조절함으로써 주어진 시간 제약 조건을 만족시키면서도 기존 방법보다 에너지 효율성을 높일 수 있다. MPEG-4 디코더를 이용한 실험 결과, 제안된 알고리즘은 기존의 태스크내 전압 스케줄링에 비해서 전력 소모를 최대 34% 감소시켰다.

• 한국정보처리학회논문지
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• 제6권2호
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• pp.497-511
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• 1999

최근 많은 명령어 수준 병렬 처리 기술들이 개발되면서 ILP 프로세서 성능이 급격히 증가하고 있다. 특히, 새로운 기술로 주목 받고 있는 EPIC(Explicitly Parallel Instruction Computing) 아키텍쳐는 조건실행 (Predicated Execution)과 투기적실행(Speculative execution)을 하드웨어와 접목하여 성능 향상을 시도하고 있다. 본 논문에서는 EPIC 아키텍쳐의 특성을 최대로 활용하여 코드 스케줄 가능성을 높이는 새로운 레지스터 할당 알고리듬을 제안한다. 그리고, 제안된 레지스터 할당 알고리듬은 조건실행의 적용으로 인하여 더욱 효율을 높일 수 있음을 실험을 통하여 입증한다. 실험 결과 기존의 레지스터 할당 방법에 비하여 평균 19%의 성능 향상을 보임으로써 제안된 레지스터 할당 방법이 효과적임을 검증한다.

• ETRI Journal
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• 제43권5호
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• pp.825-834
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• 2021

Based on its simplicity and user-friendly characteristics, OpenMP has become the standard model for programming on shared-memory architectures. Checkpointing-aided parallel execution (CAPE) is an approach that utilizes the discontinuous incremental checkpointing technique (DICKPT) to translate and execute OpenMP programs on distributed-memory architectures automatically. Currently, CAPE implements the OpenMP execution model by utilizing the DICKPT to distribute parallel jobs and their data to slave machines, and then collects the results after executing these distributed jobs. Although this model has been proven to be effective in terms of performance and compatibility with OpenMP on distributed-memory systems, it cannot fully exploit the capabilities of multicore processors. This paper presents a novel execution model for CAPE that utilizes two levels of parallelism. In the proposed model, we add another level of parallelism in the form of multithreaded processes on slave machines with the goal of better exploiting their multicore CPUs. Initial experimental results presented near the end of this paper demonstrate that this model provides significantly enhanced CAPE performance.

• 한국컴퓨터산업학회논문지
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• 제3권5호
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• pp.575-584
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• 2002

온라인 필기체 문자 인식은 필기의 순서와 획의 위치를 알 수 있어 신경망을 이용한 자소의 효과적인 분할로 큰 성과를 이루었다. 그러나 오프라인 필기체 문자 인식은 동적인 정보와 시간적인 정보를 가지고 있지 않고, 다양한 필기와 자소의 겹침이 심하며 획 사이의 잡영을 많이 가지고 있어 불완전한 전처리를 수행하여야 하는 어려움을 가지고 있다. 따라서 오프라인 필기체 문자 인식은 다양한 방법의 연구가 필요하다. 본 논문에서는 Watershed 알고리즘을 오프라인 필기체 한글 문자 인식 전처리에 적용하였다. 여기서 Watershed 알고리즘의 수행 시간과 결과 영상의 품질을 고려해 Watershed 알고리즘 4단계에서 효과적인 적용방법을 제시하였다. 효과적으로 구성된 Watershed 알고리즘을 전처리에 적용함으로써 영상 향상과 이진화에 좋은 결과를 얻었다. 실험에서는 기존의 방법과 본 논문 방법을 수행 시간과 품질로써 평가했다. 실험 결과 기존의 방법은 평균 2.08초, 본 논문 방법은 평균 0.86초의 수행 시간이 걸렸다. 결과 영상의 품질은 본 논문 방법이 기존의 방법에 비하여 문자의 획 사이의 잡영을 효과적으로 처리하였다.