Changes for page 3.2. Hardware and infrastructure
Last modified by Wai-Tim Ng on 2019/11/04 08:52
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... ... @@ -1,19 +1,17 @@ 1 - Index1 +[[**Cloud storage** >>https://en.wikipedia.org/wiki/Cloud_storage]]is a model of data storage in which the digital data is stored in logical pools, the physical storage spans multiple servers (and often locations), and the physical environment is typically owned and managed by a hosting company. These cloud storage providers are responsible for keeping the data available and accessible, and the physical environment protected and running. People and organizations buy or lease storage capacity from the providers to store user, organization, or application data. 2 2 3 -* [[Cloud computing>>Cloud computing]] 4 -* Cloud storage 5 -* Computer cluster 6 -* Supercomputer 7 -* Vienna Scientific Cluster 3 +**Cloud computing** enables access to shared pools of configurable system resources and higher-level services that can be rapidly provisioned with minimal management effort, often over the Internet. Cloud computing relies on sharing of resources to achieve coherence and economies of scale, similar to a public utility. 8 8 9 -[[ **Cloud computing**>>https://en.wikipedia.org/wiki/Cloud_computing]] enables access to shared pools of configurable system resources and higher-level services that can be rapidly provisionedwith minimal management effort, often over the Internet.Cloudrelies on sharing of resources to achieve coherence and economies of scale, similar to a public utility.5 +[[https:~~/~~/en.wikipedia.org/wiki/Cloud_computing>>url:https://en.wikipedia.org/wiki/Cloud_computing]] 10 10 11 - [[**Cloudstorage**>>https://en.wikipedia.org/wiki/Cloud_storage]]is amodelof datastoragein whichthedigitaldatais storedin logicalols, thephysical storagespansmultipleservers(andoften locations), andthephysicalenvironmenttypicallyownedandmanagedby a hostingcompany.Theseloudstorageproviders areresponsibleforkeepingthe dataavailable and accessible,andthe physicalenvironmentprotectedand running.Peopleandorganizationsbuy or leasestoragepacityfromheprovidersto storeuser,organization,or applicationdata.7 +A **supercomputer** is a computer with a high level of performance compared to a general-purpose computer. Performance of a supercomputer is measured in floating-point operations per second (FLOPS) instead of million instructions per second (MIPS). Supercomputers play an important role in the field of computational science and are used for a wide range of computationally intensive tasks in various fields, including quantum mechanics, weather forecasting, climate research, and molecular modeling. 12 12 13 - A[[**computer cluster**>>https://en.wikipedia.org/wiki/Computer_cluster]] (i.e. VSC-1/2/3) is a setof loosely or tightly connected computers that work together sothat, in many respects, they canbe viewed as a single system. Unlike grid computers, computer clusters have each node set to perform the same task, controlled and scheduled by software.The components of a clusterare usually connected to each other through fast local area networks, with each node running its own instance of an operating system. In mostcircumstances, all nodes use the same hardware and the same operating system.9 +[[https:~~/~~/en.wikipedia.org/wiki/Supercomputer>>url:https://en.wikipedia.org/wiki/Supercomputer]] 14 14 15 -A [[**supercomputer**>>https://en.wikipedia.org/wiki/Supercomputer]]is acomputer witha high levelofperformancecomparedto ageneral-purpose computer.Performanceof a supercomputerismeasuredinfloating-pointoperationspersecond(FLOPS)insteadofmillioninstructions persecond (MIPS).Supercomputers playanimportant roleinthefield of computationalscienceand are usedforawide rangeofcomputationallyintensiveasks invariousfields,includingquantum mechanics,weatherforecasting,climateresearch,andmolecularmodeling.11 +A **computer cluster **(i.e. VSC-1/2/3) is a set of loosely or tightly connected computers that work together so that, in many respects, they can be viewed as a single system. Unlike grid computers, computer clusters have each node set to perform the same task, controlled and scheduled by software. The components of a cluster are usually connected to each other through fast local area networks, with each node running its own instance of an operating system. In most circumstances, all nodes use the same hardware and the same operating system. 16 16 17 - The[[**Vienna Scientific Cluster**>>http://vsc.ac.at/home/]] (VSC)is a collaboration of several Austrian universities that provides supercomputerresourcesand corresponding servicesto theirsers. The current flagship ofthe VSC family is VSC-3. Installed in2014,itis a throughput-orientedgeneral-purpose Linux clusterth approximately 2,000 computenodes and a few special-purpose nodes such as GPUs. Itis renowned forits innovative oil cooling and unparalleled energy efficiency.13 +[[https:~~/~~/en.wikipedia.org/wiki/Computer_cluster>>url:https://en.wikipedia.org/wiki/Computer_cluster]] 18 18 19 - 15 +The **Vienna Scientific Cluster** (VSC) is a collaboration of several Austrian universities that provides supercomputer resources and corresponding services to their users. The current flagship of the VSC family is VSC-3. Installed in 2014, it is a throughput-oriented general-purpose Linux cluster with approximately 2,000 compute nodes and a few special-purpose nodes such as GPUs. It is renowned for its innovative oil cooling and unparalleled energy efficiency. 16 + 17 +[[http:~~/~~/vsc.ac.at/home/>>url:http://vsc.ac.at/home/]]
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