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23rd IEEE International Conference on Enabling Technologies, Infrastructure for Collaborative Enterprises (WETICE)

作者： Savvas, Ilias K. Sofianidou, Georgia N. TEI Thessaly Dept Comp Sci & Engn Larisa Greece

ISBN: (纸本)9781479942497

Nowadays, colossal amount of information is produced by computational systems and electronic instruments such as telescopes, medical devices and so on. To explore these petabytes of data, new fast algorithms must be discovered or old ones may be redesigned. One of the most popular and useful techniques in order to discover and extract information from data pools is clustering, and k-means is an algorithm which clusters data according its characteristics. Its main disadvantage is its computational complexity which makes the technique very difficult to apply on big data sets. Although k-means is a very well studied technique, a fully parallel version of it has not been explored yet. In this work, a parallel version of the k-means is presented for 1-d objects. The experimental results obtained are inline with the theoretical outcome and prove both the correctness and the effectiveness of the technique.

关键词： Big Data application program interfaces computational complexity information retrieval message passing parallel algorithms pattern clustering 1D data MPI big data sets computational systems data pools electronic instruments information discovery information extraction medical devices message passing interface parallelizing k-means algorithm telescopes Algorithm design and analysis Clustering algorithms Computational complexity Data mining Equations Peer-to-peer computing message passing complexity classes ELECTRONIC INSTRUMENTS information retrieval mannose phosphate isomerase remote procedure calls Algorithm design and analysis big data application programming interfaces Peer to peer computing information discovery Telescopes Medical device Clustering algorithms Information Extraction

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A common architecture for co-simulation of SystemC models in QEMU and OVP virtual platforms 22

A common architecture for co-simulation of SystemC models in...

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22nd IFIP WG 10.5/IEEE International Conference on Very Large Scale Integration (VLSI-SoC)

作者： Cucchetto, Filippo Lonardi, Alessandro Pravadelli, Graziano Univ Verona Dept Comp Sci Verona Italy EDALab Srl Verona Italy

ISBN: (纸本)9781479960163

Several approaches have been proposed for cosimulation between QEMU and SystemC. On the contrary, no paper addresses integration between Open Virtual Platform (OVP) and SystemC. Indeed, OVP models and the related simulator can be integrated into SystemC designs by using TLM 2.0 wrappers and opportune OVP APIs. However, this solution presents some disadvantages, like the incapability of supporting cycle-accurate models, and the necessity of re-design, in terms of SystemC modules, all OVP components that should be integrated in the target platform. To avoid such drawbacks, and provide an easy way to port SystemC models from a QEMU-based to an OVP-based virtual platform and vice versa, this paper presents a common co-simulation approach that works for integrating SystemC components with both QEMU and OVP.

关键词： application program interfaces virtual prototyping OVP virtual platforms QEMU platforms SystemC designs TLM 2.0 wrappers common cosimulation approach cycle-accurate models open virtual platform opportune API Bridges Computer architecture Hardware Operating systems Time-varying systems Virtual prototyping Virtual prototyping application programming interfaces Operating systems time-varying systems Computer Architecture bridges Computer hardware Platform

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ACUA: API Change and Usage Auditor 14

ACUA: API Change and Usage Auditor

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14th IEEE International Working Conference on Source Code Analysis and Manipulation (SCAM)

作者： Wu, Wei Adams, Bram Gueheneuc, Yann-Gael Antoniol, Giuliano Ecole Polytech DGIGL Montreal PQ H3C 3A7 Canada

ISBN: (纸本)9780769553047

Modern software uses frameworks through their application programming interfaces (APIs). Framework APIs may change while frameworks evolve. Client programs have to upgrade to new releases of frameworks if security vulnerabilities are discovered in the used releases. Patching security vulnerabilities can be delayed by non-security-related API changes when the frameworks used by client programs are not up to date. Keeping frameworks updated can reduce the reaction time to patch security leaks. Client program upgrades are not cost-free, developers need to understand the API usages in client programs and API changes between framework releases before conduct upgrading tasks. In this paper, we propose a tool ACUA to generate reports containing detailed API change and usage information by analyzing the binary code of both frameworks and clients programs written in Java. Developers can use the API change and usage reports generated by ACUA to estimate the work load and decide when to starting upgrading client programs based on the estimation.

关键词： Java application program interfaces safety-critical software source code (software) ACUA API Change-and-Usage Auditor application programming interfaces binary code analysis client program upgrade framework release nonsecurity-related API changes reaction time reduction security leakage patching security vulnerabilities software usage framework work load estimation Abstracts Analytical models Contracts Data models Detection algorithms Security Software API change and usage Software maintenance framework API evolution application programming interfaces Java Java programming language Frameworks safety-critical software Detection algorithms Software maintenance data models API contract AXIAL POWER INDICATOR American Petroleum Institute Security hole ANALYSIS MODELS customers

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ADAPTIVE BUILD SYSTEM FOR TR-069 AGENT SERVICE FOR SET-TOP BOXES BASED ON ANDROID OS 22

ADAPTIVE BUILD SYSTEM FOR TR-069 AGENT SERVICE FOR SET-TOP B...

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22nd Telecommunications Forum Telfor (TELFOR)

作者： Trifunovic, Bojan Mihailovic, Veljko Ignjatov, Nemanja Simikic, Rade Velikic, Ivan RT RK Inst Sisteme Zasnovane Racunaru Narodnog Fronta 23a Novi Sad 21000 Serbia

ISBN: (纸本)9781479961917

This paper presents a solution of integrator application programming interface (API) generator. The goal of the solution is to decrease the integration time required for the TR-069 support in an arbitrary device, by providing an adaptive build system which generates API specific for the target device which is defined by a TR-106 data model specification. Evaluation results indicate that the implemented solution contributes to the decrease of integration time, based on the case of an example practical project in which TR-069 service is provided for an Android-based set-top box device.

关键词： Android (operating system) application program interfaces formal specification set-top boxes API generator Android OS Android-based set-top box device TR-069 agent service TR-106 data model specification adaptive build system integration time integrator application programming interface generator Adaptive systems Androids Generators Humanoid robots Java Linux XML application programming interfaces INTEGRATION TIME Androids set top box Androids Humanoid robots Adaptive systems dynamos Linux extensible markup language Java Java programming language target device

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Implementation of Multicore Communications API 16

Implementation of Multicore Communications API

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16th International Symposium on System-on-Chip (SoC)

作者： Virtanen, Janne Matilainen, Lauri Salminen, Erno Hamalainen, Timo D. Tampere Univ Technol Dept Pervas Comp FIN-33101 Tampere Finland

ISBN: (纸本)9781479968909

This paper presents an implementation of Multicore Communications API (MCAPI), with focus on portability, stability, and simplicity of the design. The main motivation for the implementation is instability of other publicly available implementations. The developed implementation utilizes POSIX message queues, that is an easily portable interface and readily compatible with MCAPI. The performance was measured as latency and transfer rate of the API. The measurement platforms were a x86-64 PC and a development board featuring an ARM processor. A MCAPI implementation was used as reference for comparison. PMQ-MCAPI is much more stable and easily usable than other MCAPI implementations publicly available for PC. When transfer size was between 1-8 KiB, latency of transfers between cores was between 9-15 mu s and transfer rate 500-5000 MBps. This translates to 27 000-45 000 cycles and 0.16-1.67 bytes per cycle. CPU and especially performance of its cache were concluded as the most important factors contributing to the performance. In comparison to the reference, latency of the implementation was 1/8 at best, while transfer rate was up to 35x.

关键词： Unix application program interfaces cache storage multiprocessing systems ARM processor MCAPI implementation PMQ-MCAPI POSIX message queues cache performance development board multicore communication API portability portable interface publicly available implementations stability transfer rate transfer size x86-64 PC Message systems Topology combination rate application programming interfaces Computer based information systems Unix operating system Multiprocessing systems cache storage Portability topology AXIAL POWER INDICATOR API American Petroleum Institute Multi-core processors

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CloudMan: A Platform for Portable Cloud Manufacturing Services 2

CloudMan: A Platform for Portable Cloud Manufacturing Servic...

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IEEE International Conference on Big Data

作者： Qanbari, Soheil Zadeh, Samira Mahdi Vedaei, Soroush Dustdar, Schahram Vienna Univ Technol Distributed Syst Grp Vienna Austria Bahai Inst Higher Educ Tehran Iran

ISBN: (纸本)9781479956661

Cloud manufacturing refers to "as a Service" production model that exploits an on-demand access to a distributed pool of diversified manufacturing services and resources. It forms elastic and reconfigurable production lines, which enhance efficiency, by allowing optimal resource allocation in response to demand changes and market dynamics. This paper studies these challenges and proposes a portable cloud manufacturing platform, entitled "CloudMan", aiming at achieving a portable deployment of cloud manufacturing services to any compliant distributed production line in the cloud. The stakeholders of CloudMan are detailed together with their API requirements, where each stakeholder has an interest in. Having this rigorous analysis in mind, we present a holistic architecture for CloudMan, as it considers the manufacturing data, material and event flow from sensors and shop floors, through services to end products. In architecting such platform, there is a lack of agreed standard for the portability and orchestration of manufacturing services, as well as their definition. The proposed platform incorporates OASIS Topology and Orchestration Specification for cloud applications (TOSCA) policies, plans and templates as a mechanism for dynamic configuration, portability and deployment of manufacturing services across multiple collaborating manufacturers. Thereby, the architecture provides a set of abstraction levels for various types of manufacturing services in which encapsulates and addresses specific requirements to satisfy the needs of stakeholders.

关键词： application program interfaces cloud computing manufacturing data processing resource allocation sensors API requirements CloudMan OASIS TOSCA policies distributed production line elastic production lines market dynamics on-demand access optimal resource allocation portable cloud manufacturing services reconfigurable production lines topology-and-orchestration specification-for-cloud application policies Bills of materials Cloud computing Manufacturing Materials Standards Topology Cloud Computing Resource utilization application programming interfaces Sensors Oases topology Legal Services manufacturing Clouds CLOUDS bills of materials

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A Case Study on Protocol Stack Integration for 3GPP LTE Evolved Node B 6

A Case Study on Protocol Stack Integration for 3GPP LTE Evol...

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IEEE Latin-America Conference on Communications LATINCOM

作者： Cardoso, Fabbryccio A. C. M. Figueiredo, Felipe A. P. Vilela, Rafael Miranda, Joao Paulo Ctr Res & Dev Telecommun CPqD Campinas SP Brazil

ISBN: (纸本)9781479971626

This paper presents a case study of the integration of the Long Term Evolution (LTE) physical layer into the radio protocol subsystem of a macrocell base station. We conduct tests in the laboratory using a modular experimental setup aimed at validating this protocol stack integration. Measurements and analysis are carried out with the aid of Wireshark, a well-known protocol analyzer tool. This choice allows the inspection of data packets at the application program interface between PHY and MAC subsystems. Our results suggest that the LTE protocol stack can operate synchronously, thus supporting message sequences conveyed within both random access and radio-resource-control connection procedures. The proposed experimental setup and test methodology make it possible to validate the control plane operation of the protocol stack without the need of a core network interface.

关键词： Long Term Evolution access protocols 3GPP LTE LTE protocol MAC subsystems PHY subsystems Wireshark core network interface data packets long term evolution macrocell base station message sequences program interface protocol analyzer tool protocol stack integration radio protocol subsystem Base stations Baseband Downlink Field programmable gate arrays Physical layer Protocols Long Term Evolution BASE STATION protocol stack Field programmable gate arrays data packets Physical layer Baseband MAC protocol Downlink protocols application programming interfaces Local thermodynamic equilibrium

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Distributed Authorization in Complex Multi Entity-Driven API Ecosystems 8

Distributed Authorization in Complex Multi Entity-Driven API...

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8th International Conference on Signal Processing and Communication Systems, (ICSPCS)

作者： Thatmann, Dirk Tech Univ Berlin Telekom Innovat Labs Serv Ctr Networking SNET D-10587 Berlin Germany

ISBN: (纸本)9781479952557

In certain business sectors adapting to modern and cost reducing technologies and service models can be still a challenge. This especially applies for health care related SME, such as hospitals, where cost reduction runs counter the need of being compliant to legal regulations and where the access control has to struggle against a diverse landscape of health care equipment accompanied by dynamic and complex role models. Outsourcing data storage and data processing seems not to reduce the complexity, rather bears the risks of reduced data availability, loss or abuse of data and can increase legal compliance risks and concerns. Since this applies for many SMEs, a common platform, such as an ecosystem, can help to lower the entrance barrier by regaining helpful management functionalities, standardized basic services and therefore push the adoption to modern cost reducing service consumption scenarios. In this paper a generic design pattern for realizing distributed authorization in an API ecosystem is presented. The pattern is applied within a research project, which aims to develop an ecosystem for trading and consuming services within demanding business sectors and reduce lock-in effects for both, service providers and consumers. The concept of Distributed Authorization is applied in a new complex multi entity use-case, where access policies for RESTful APIs can be designed flexible under consideration of service providers' and consumers' requirements which are enforced by a central trusted 3rd party provider.

关键词： application program interfaces authorisation API ecosystem SME access control complex multientity-driven API ecosystems data processing distributed authorization generic design pattern health care equipment hospitals outsourcing data storage trading Authorization Contracts Ecosystems Logic gates Monitoring Servers Authorization application programming interfaces Ecosystem access control Logic gates Servers contract hospital Business sectors Commerce SUPERCONDUCTING MAGNETIC ENERGY STORAGE Automatic data processing data processing

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Evaluating Performance and Power Efficiency of Scientific applications on Multi-threaded Systems 2

Evaluating Performance and Power Efficiency of Scientific Ap...

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E2SC 2nd International Workshop on Energy Efficient Supercomputing

作者： Gioiosa, Roberto Kerbyson, Darren J. Hoisie, Adolfy Pacific Northwest Natl Lab High Performance Comp Grp Richland WA 99354 USA

ISBN: (纸本)9781479970360

The power and energy walls are changing the way users utilize supercomputers: Time-to-completion is not the only important goal but other metrics, such as the energy required to solve a problem or the power efficiency, are becoming as important as performance. This shift towards power- and energy-aware computing is expected to continue in the exascale era, thus, understanding the performance, power and energy implications of different hardware configurations is of paramount importance. In this paper we analyze the performance, power efficiency and energy consumption of scientific applications programmed in MPI, OpenMP and MPI+OpenMP on two different architectures that have take different approaches to limit power consumption, IBM POWER7+ and AMD Interlagos. We compare the scalability, power efficiency and energy consumption of distributed and shared memory versions of each applications and analyze performance and bottlenecks of different combinations of MPI tasks/OpenMP threads. Our results show that, although shared memory programming models usually provide lower synchronization cost, achieving the highest performance/efficiency requires a combination for MPI tasks/ OpenMP threads that is dependent on the underlying architecture and takes into consideration how hardware resources are distributed among the computing elements. More importantly, our results show that the "best configuration" strongly depends on the particular target metric.

关键词： application program interfaces mainframes message passing multi-threading natural sciences computing performance evaluation power aware computing shared memory systems AMD Interlagos IBM POWER7+ MPI OpenMP distributed memory versions energy consumption energy walls energy-aware computing exascale era hardware configurations hardware resources multithreaded systems power efficiency power walls power-aware computing scientific applications shared memory programming models shared memory versions supercomputer time-to-completion Benchmark testing Computer architecture Hardware Instruction sets Measurement Power demand programming dynamic efficiency power aware computing message passing hardware resource Performance Evaluation instruction sets Multithreading Mainframes application programming interfaces supercomputer Benchmark testing mannose phosphate isomerase remote procedure calls shared memory systems Power demand

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DATA PUBLISHING AND ARCHAEOLOGY'S INFORMATION ECOSYSTEM

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NEAR EASTERN ARCHAEOLOGY 2014年第3期77卷 223-227页

作者： Kansa, Sarah Whitcher Kansa, Eric Alexandria Arch Inst Blacksburg VA 24061 USA Int Council Archaeozool Mexico City DF Mexico

Though archaeologists have long recognized the importance of detailed data documentation, the practical limits of conventional paper publication have usually prevented sharing such information in detail. Researchers have been forced to select what they see as the most important data to disseminate or to provide summarized data tables to support heir arguments. Advances in technology over the past few decades allow researchers to collect even more digital data than ever before. However, dissemination practices have not kept pace with technological advances. Scholars still largely cling to traditional channels for communicating their research. After all, publishing is a high-stakes game in academia. In today's highly competitive pressure cooker, researchers are loath to invest effort in new forms of publishing where recognition and rewards are far from certain.

关键词： Datasets Scholarly publishing Archaeology Archives Professionalism application programming interfaces Data sharing Bibliographic citations Information sharing

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