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43231.准备IBM的纯应用系统，第4部分：使用高级中间件配置工具V1.1入职培训应用到云计算
[信息传输、软件和信息技术服务业] [2013-12-10]
Using IBM PureApplication System, you can create and deploy virtual servers in the cloud thatrepresent middleware topologies and application configurations. However, you still face thechallenge of moving existing applications onto the cloud and automating them.This article describes how to capture and automate the deployment of a middleware topologyand application by using Advanced Middleware Configuration. This process is known as"onboarding." Before you begin, read through the instructions and make sure you have thenecessary permissions for all the steps you need to complete.
关键词：纯应用系统；可视化应用；高级中间件；架构服务
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43232.从不同的生产工作负载的MapReduce的设计见解
[信息传输、软件和信息技术服务业] [2013-12-10]
In this paper, we analyze seven MapReduce workload traces from production clusters at Facebook and at Cloudera customers in e-commerce, telecommunications,edia, and retail. Cumulatively, these traces comprise over a year’s worth of data logged from over 5000 machines, and contain over two million jobs that perform 1.6 exabytes of I/O. Key observations include input data forms up to 77% of all bytes, 90% of jobs access KB to GB sized files that make up less than 16% of stored bytes, up to 60% of jobs re-access data that has been touched within the past 6 hours, peak-to-median job submission rates are 9:1 or greater, an average of 68% of all compute time is spent in map, task-seconds-per-byte is a key metric for balancing compute and data bandwidth, task durations range from seconds to hours, and five out of seven workloads contain map-only jobs. We have also deployed a public workload repository with workload replay tools so that the researchers can systematically assess design priorities and compare performance across diverse MapReduce workloads.
关键词：集群生产工作量；电子商务；公共负载资料库；工作负载
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43233.分层增加的SPMD编程模型
[信息传输、软件和信息技术服务业] [2013-12-10]
Large-scale parallel machines are programmed mainly with the single program, multiple data (SPMD) model of parallelism. This model has advantages of scalability and simplicity, combining independent threads of execution with global collective communication and synchronization operations. However, the model does not fit well with divide-and-conquer parallelism or hierarchical machines that mix shared and distributed memory. In this paper, we define a hierarchical team mechanism that retains the performance and analysis advantages of SPMD parallelism while supporting hierarchical algorithms and machines.We demonstrate how to ensure alignment of collective operations on teams, eliminating a class of deadlocks. We present application case studies showing that the team mechanism is both elegant and powerful, enabling users to exploit the hardware features at different levels of a hierarchical machine and resulting in significant performance gains.
关键词：大规模并行机；多数据（SPMD）模型；独立线程执行
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43234.设计国有企业的生态系统，以支持丰富的用户体验——参与系统：云计算的新时代
[信息传输、软件和信息技术服务业] [2013-12-10]
Systems of engagement are taking on an increasingly important role in everyday life in bothconsumer and business contexts. Users seek a rich experience that gathers and analyzesinformation from multiple, disparate structured and unstructured sources to help them quicklymake and act upon informed decisions. A cloud operating environment is the platform thatsupports systems of engagement. This article presents an approach to designing a system ofengagements ecosystem.
关键词：云操作环境；环境状况；设计
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43235.云端计算大数据：数据速度，批量，多种类，真实性
[信息传输、软件和信息技术服务业] [2013-12-10]
Big data is an inherent feature of the cloud and provides unprecedented opportunities to useboth traditional, structured database information and business analytics with social networking,sensor network data, and far less structured multimedia. Big data applications require a data-centric compute architecture, and many solutions include cloud-based APIs to interface withadvanced columnar searches, machine learning algorithms, and advanced analytics such ascomputer vision, video analytics, and visualization tools. This article examines the use of the Rlanguage and similar tools for big data analysis and methods to scale big data services in thecloud. It provides an in-depth look at digital photo management as a simple big data servicethat employs key elements of search, analytics, and machine learning applied to unstructureddata.
关键词：定义；系统设计；系统运用；云数据
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43236.数据整合与建设经验的SMAP
[信息传输、软件和信息技术服务业] [2013-12-10]
Originally designed as a RESTful protocol to expose reading data from simple instruments, we discuss theshifting role of sMAP as a common interchange format for timeseries data within a number of building projects.Due to the change in role and resulting widened set of use cases, we discuss where sMAP has fallen short anddesign modifications necessary to address them. Key contributions are identifying a set of features required for the broad applicability of a protocol for publishing time-series data, and a concrete proposal and implementationof our design grounded in a diverse set of use cases and real deployments.
关键词：时间序列数据；数据协议；广泛适用性；读取数据
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43237.在IBM的纯应用系统实现业务连续性
[信息传输、软件和信息技术服务业] [2013-12-10]
Achieving business continuity (that is, making sure that your critical business functions canbe performed in the face of a disaster) is always a tricky business. Designing systems to beavailable in the face of failure is one of the most complex problems in software engineering. Evenunderstanding what business continuity and disaster recovery mean is where things just beginto get complicated.For example, what most users mean when they discuss disaster recovery is the ability to get a siteup and running in a matter of minutes (or, at most, hours) from a last good state of an existingsystem in the case of a catastrophic failure where an entire data center is lost.Because such definitions can be so loose, it’s useful to define some terms for discussing businesscontinuity for IBM PureApplication System. Wikipedia, in its article on disaster recovery, refers totwo key measurements that are important to understand:Recovery point objective (RPO) is the measure of the maximum time period in which datamight be lost from an IT service due to a major incident.
关键词：系统恢复；系统状态转移；备份恢复
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43238.协同异构蜂窝层叠网络中的终端直通通信技术
[信息传输、软件和信息技术服务业] [2013-12-09]
终端到终端(device-to-device，D2D)的直通通信实现了联合蜂窝和移动自组网的无缝操作，大幅提高了系统频谱效率和网络容量。介绍了D2D局域网的理论概念和在实践中的应用挑战；并着重论述了跨层资源管理在解决D2D通信中干扰避免问题的重要性，给出了一个无线资源管理实例。数据结果显示，所提出的算法性能接近穷举搜索最优算法，并具有相对较低的复杂度。目前，D2D通信技术表现出能够获得系统高容量和充分利用无线资源的巨大潜力。
关键词：D2D直通通信；无线资源管理；D2D局域网
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43239.新兴产业周刊——2013年45期
[专用设备制造业,电力、热力、燃气及水生产和供应业,信息传输、软件和信息技术服务业,水利、环境和公共设施管理业,汽车制造业,通用设备制造业,医药制造业,计算机、通信和其他电子设备制造业] [2013-12-09]
本刊以七大战略性新兴产业——节能环保、新一代信息技术、生物、高端装备制造、新能源、新材料、新能源汽车为研究重点，关注国家高层和各部委的动态，剖析国家和地方的新兴产业政策。本刊设有政策导读、领导讲话、七大战略性新兴产业本周国内外行业动态和重点企业新闻、投资专题四大板块，能够实时监测新兴产业和重点企业动态，把握新兴产业发展方向，研究发展重点，寻求发展机遇。
关键词：节能环保；新一代信息技术；生物；高端装备制造；新能源；新材料；新能源汽车
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43240.OpenStack联合会的实验多重云测试平台
[信息传输、软件和信息技术服务业] [2013-12-05]
There is an increasing number of cloud platforms emerging in both academia and industry. They often federate resources from multiple infrastructures in order to benefit from the unique features that each presents. After introducing the main capabilities and features of OpenStack, this article addresses the integration of OpenStack-based platforms into larger, heterogeneous multi-cloud infrastructures, taking the EU FP7 BonFIRE project as an integration use case. Ultimately, we aim to contribute to the state of the art and provide guidelines to integrators looking to federate Open Stack testbeds into more complex architectures.
关键词：云联盟；云计算；开放的堆栈
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