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Predicting Node Failure in High Performance Computing systems from Failure and Usage Logs

Predicting Node Failure in High Performance Computing System...

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IEEE international symposium on parallel and distributed Processing Workshops and Phd Forum (IPDPSW)

作者： Nithin Nakka Ankit Agrawal Alok Choudhary Coordinated Science Laboratory University of Illinois Urbana-Champaign Urbana IL USA Department of Electrical Engineering and Computer Science Northwestern University Evanston IL USA

In this paper, we apply data mining classification schemes to predict failures in a high performance computer system. Failure and Usage data logs collected on supercomputing clusters at Los Alamos National Laboratory (LANL) were used to extract instances of failure information. For each failure instance, past and future failure information is accumulated -- time of usage, system idle time, time of unavailability, time since last failure, time to next failure. We performed two separate analyses, with and without classifying the failures based on their root cause. Based on this data, we applied some popular decision tree classifiers to predict if a failure would occur within 1 hour. Our experiments show that our prediction system predicts failures with a high-degree of precision up to 73% and recall of about 80%. We also observed that employing the usage data along with the failure data has improved the accuracy of prediction.

关键词： Databases Data mining Maintenance engineering Hardware Humans Program processors

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Position estimation of distributed sensor node robots by their communication connectivity

Position estimation of distributed sensor node robots by the...

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international symposium on Micromechatronics and Human Science (MHS)

作者： Sumiaki Ichikawa Department of Systems and Engineering Tokyo University of Science Chino Nagano Japan

In this paper, we investigate the accuracy of position estimation of distributed sensor nodes. The method of the estimation is calculated by communication connectivity statuses of local communication between the nodes. Actual positions of the nodes are unknown. A host computer, which can collect all of the connectivity conditions of the network, iteratively calculate the estimated positions to be less error of the communication connectivity between actual positions and estimated positions. We carried out the simulation studies with respect to spatial size of the distribution, density of the sensor nodes and dynamical distribution with moving and changing of the sensor positions.

关键词： Force Computer aided software engineering

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ERWF: Embedded Real-Time Workflow Engine for User-Centric Cyber-Physical systems

ERWF: Embedded Real-Time Workflow Engine for User-Centric Cy...

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international Conference on parallel and distributed systems (ICPADS)

作者： Wei-Chih Chen Chi-Sheng Shih Embedded Systems and Wireless Networking Laboratory Graduate Institute of Networking and Multimedia Department of Computer Science and Information Engineering National Taiwan University Taiwan

Many modern embedded systems, such as cyber-physical systems, feature close integration of computation and physical components. Configurability, efficiency, adaptability, reliability, and usability are essential features for such systems. A workflow engine is a software application that manages workflows. It helps developers separate control flows from activities of the system, and thus is able to enhance configurability and development efficiency. This work aims at the design and implementation of a workflow engine for cyber-physical systems so as to configure workflows with less efforts. To meet timing requirements, the engine is designed to schedule activities to meet their timing requirements, and provides admission control so that these requirements of a set of workflows are guaranteed as long as it is admitted. A humanoid robot is used as the test-bed for the workflow engine. We model robot applications as workflows, and show that how the workflow engine provides real time guarantee and enhances its configurability.

关键词： Engines Robot sensing systems Cognition Real time systems Timing Instruction sets

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Using MiniZnMASC Middleware with Different Algorithms for Business-Driven Adaptation of Business Processes

Using MiniZnMASC Middleware with Different Algorithms for Bu...

引用

international Workshop on Policies for distributed systems and Networks

作者： Qinghua Lu Vladimir Tosic Business Adaptation and Interoperation Project Software Systems NICTA Sydney Australia School of Computer Science & Engineering University of New South Wales Sydney Australia

Runtime adaptation of business processes and their IT system implementations to changes can usually be done in several ways. MiniZnMASC middleware makes adaptation decisions that maximize business value while satisfying all given constraints. All necessary information about alternative adaptations and their business metrics are specified as policies in WS-Policy4MASC. Using an example loan application business process, we demonstrate how MiniZnMASC supports 4 different autonomic business-driven decision making algorithms for adaptation.

关键词： Decision making Algorithm design and analysis Measurement Adaptation models Web services

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Time Utility Functions for Modeling and Evaluating Resource Allocations in a Heterogeneous Computing System

Time Utility Functions for Modeling and Evaluating Resource ...

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IEEE international symposium on parallel and distributed Processing Workshops and Phd Forum (IPDPSW)

作者： Luis Diego Briceno Bhavesh Khemka Howard Jay Siegel Anthony A. Maciejewski Christopher Groër Gregory Koenig Gene Okonski Steve Poole Department of Electrical and Computer Engineering Colorado State University USA Department of Electrical and Computer Engineering Department of Computer Science Fort Collins CO USA Oak Ridge National Laboratory Oak Ridge TN USA Department of Defense Washington DC USA

This study considers a heterogeneous computing system and corresponding workload being investigated by the Extreme Scale systems Center (ESSC) at Oak Ridge National Laboratory (ORNL). The ESSC is part of a collaborative effort between the Department of Energy (DOE) and the Department of Defense (DoD) to deliver research, tools, software, and technologies that can be integrated, deployed, and used in both DOE and DoD environments. The heterogeneous system and workload described here are representative of a prototypical computing environment being studied as part of this collaboration. Each task can exhibit a time-varying importance or utility to the overall enterprise. In this system, an arriving task has an associated priority and precedence. The priority is used to describe the importance of a task, and precedence is used to describe how soon the task must be executed. These two metrics are combined to create a utility function curve that indicates how valuable it is for the system to complete a task at any given moment. This research focuses on using time-utility functions to generate a metric that can be used to compare the performance of different resource schedulers in a heterogeneous computing system. The contributions of this paper are: (a) a mathematical model of a heterogeneous computing system where tasks arrive dynamically and need to be assigned based on their priority, precedence, utility characteristic class, and task execution type, (b) the use of priority and precedence to generate time-utility functions that describe the value a task has at any given time, (c) the derivation of a metric based on the total utility gained from completing tasks to measure the performance of the computing environment, and (d) a comparison of the performance of resource allocation heuristics in this environment.

关键词： Resource management Measurement Computational modeling Round robin Laboratories Shape Collaboration

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Is Buffer Cache Still Effective for High Speed PCM (Phase Change Memory) Storage?

Is Buffer Cache Still Effective for High Speed PCM (Phase Ch...

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international Conference on parallel and distributed systems (ICPADS)

作者： Eunji Lee Daeja Jin Kern Koh Hyokyung Bahn Department of Computer Engineering Seoul National University Seoul South Korea Department of Computer Science and Engineering Ewha University Seoul South Korea

Recently, PCM (phase change memory) emerges as a new storage media and there is a bright prospect that PCM will be used as a storage device in the near future. Since the optimistic access time of PCM is expected to be almost identical to that of DRAM, we can make a question that the traditional buffer cache will be still effective for high speed secondary storage such as PCM. This paper answers it by showing that the buffer cache is still effective in such environments due to the software overhead and the bimodal block reference characteristics. Based on this observation, we present a new buffer cache management scheme appropriately for the system where the speed gap between the cache and storage is small. To this end, we analyze the condition that caching gains and find the characteristics of I/O traces that can be exploited in managing buffer cache for PCM-storage.

关键词： Phase change materials Buffer storage Random access memory Memory management History Hard disks Servers

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Connecting industrial systems - solutions for high level development of software connectors

Connecting industrial systems - solutions for high level dev...

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international symposium on Logistics and Industrial Informatics, LINDI

作者： Thomas Kistel Ralf Vandenhouten Institute of Telematics University of Applied Sciences Wildau Wildau Germany

The implementation of communication protocols is an important development task that appears frequently in software projects. This article is a vision paper that describes the components of the current available implementation strategies and problems that arise. The article introduces the main existing protocol engineering techniques and puts them into the context of model driven software development. At the end a methodology is introduced for the automatic generation of manager interfaces of Device Agent protocols for the use in a distributed component oriented environment, using ASN.1 and SDL.

关键词： Protocols Encoding software Google Connectors Unified modeling language Business

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SAW: Java Synchronization Selection from Lock or software Transactional Memory

SAW: Java Synchronization Selection from Lock or Software Tr...

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international Conference on parallel and distributed systems (ICPADS)

作者： Yuji Yamada Hideya Iwasaki Tomoharu Ugawa Department of Computer Science University of Electro-Communications Tokyo Japan Graduate School of Informatics and Engineering University of Electro-Communications Tokyo Japan

To rewrite a sequential program into a concurrent one, the programmer has to enforce atomic execution of a sequence of accesses to shared memory to avoid unexpected inconsistency. There are two means of enforcing this atomicity: one is the use of lock-based synchronization and the other is the use of software transactional memory (STM). However, it is difficult to predict which one is more suitable for an application than the other without trying both mechanisms because their performance heavily depends on the application. We have developed a system named SAW that decouples the synchronization mechanism from the application logic of a Java program and enables the programmer to statically select a suitable synchronization mechanism from a lock or an STM. We introduce annotations to specify critical sections and shared objects. In accordance with the annotated source program and the programmer's choice of a synchronization mechanism, SAW generates aspects representing the synchronization processing. By comparing the rewriting cost using SAW and that using individual synchronization mechanism directly, we show that SAW relieves the programmer's burden. Through several benchmarks, we demonstrate that SAW is an effective way of switching synchronization mechanisms according to the characteristics of each application.

关键词： Synchronization Surface acoustic waves Java Cloning Libraries software Weaving

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Parabilis: Speeding up Single-Threaded Applications by Extracting Fine-Grained Threads for Multi-core Execution

Parabilis: Speeding up Single-Threaded Applications by Extra...

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international symposium on parallel and distributed Computing

作者： Ademola Fawibe Oghenekarho Okobiah Oleg Garitselov Krishna Kavi Izuchukwu Nwachukwu Mohana Asha Latha Dubasi Vinay R. Prabhu Department of Computer Science and Engineering University of North Texas Denton TX USA

The trend in architectural designs has been towards using simple cores for building multicore chips, instead of a single complex out-of-order (OOO) core, due to the increased complexity and energy requirements of out of order processors. Multicore chips provide better performance when compared with OOO cores while executing parallel applications. However, they are not able to exploit the parallelism inherent in single threaded applications. To this end, this paper presents a compiler optimization methodology coupled with minimal hardware extensions to extract simple fine-grained threads from a single-threaded application, for execution on multiple cores of a chip multiprocessor (CMP). These fine-grained threads are independent and eliminate the need for communication between cores, reducing costly communication latencies. This approach, which we call Parabilis is scalable for up to eight cores, and does not require complex hardware additions to simple multicore systems. Our evaluation shows that Parabilis yields an average speedup of 1.51 on an 8-core CMP architecture.

关键词： Registers Hardware Out of order Multicore processing parallel processing

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Collaborative & Integrated Network & systems Management: Management Using Grid Technologies

Collaborative & Integrated Network & Systems Management: Man...

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international Conference on Computer Communication and Management（ICCCM 2011）

作者： Khalil Al-Shqeerat Mohammad Hassan Mohammad Nizar Assistant professor Faculty of Information Technology Applied Science University Assistant professor Software Engineering Dept. Al-Ahliyya Amman University Laboratory supervisor Software Engineering Dept. Al-Ahliyya Amman University

Network and systems management platforms were based on simple centralized architectures. Centralized architectures have proved deficient in managing current complex networks, such as the Internet. This has led to more complex and distributed architectures for network and system management. Throughout their development, management platforms have passed through intermediate stages such as weakly distributed control systems, strongly distributed control systems, domain based systems, and active distributed management systems [1]. In order to facilitate the development of such a platform, we will build a management collaborative community around grid concepts, so that it supports the integration of multiple management tasks in parallel manner. Access to information of different management domains requires some computational resources that are provided through grid interface and virtual organizations. Some system prototype results are presented

关键词： Grid, Network and systems Management, Integrated Management, Virtual Organizations.

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