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Quasi Fat Trees for HPC Clouds and Their Fault-Resilient Closed-Form Routing

Eitan Zahavi, Isaac Keslassy, Avinoam Kolodny
2014 2014 IEEE 22nd Annual Symposium on High-Performance Interconnects  
PGFT 2 2 10 The Quasi Fat Tree  Provides better use for the extra links: Connect to side branches and reduce average diameter QFT Parent Child Child Parent XGFT 11 QFT reduces  ...  The Fat Tree Evolution  A Tree  Trivial forwarding  Link capacity grows towards the root  This ensures no contention for ALL permutations Static Routing = some permutations are contending  The constant  ...   Collectives are used by most applications for best performance  Shift permutations are the traffic pattern of ALL the Collectives  In most MPI implementations for medium and large messages  In every  ... 
doi:10.1109/hoti.2014.19 dblp:conf/hoti/ZahaviKK14 fatcat:aveaipc2gbeinm3pxwoigoydni

A Survey on Resiliency Techniques in Cloud Computing Infrastructures and Applications

Carlos Colman-Meixner, Chris Develder, Massimo Tornatore, Biswanath Mukherjee
2016 IEEE Communications Surveys and Tutorials  
The second major part of the paper introduces and categorizes a large number of techniques for cloud computing infrastructure resiliency.  ...  Before moving to the detailed resilience aspects, we provide a qualitative overview of the types of failures that may occur (from the perspective of the layered cloud architecture), and their consequences  ...  and quasi-optimality of the results.  ... 
doi:10.1109/comst.2016.2531104 fatcat:vzvkai7nkrbbda63fesn7zw4di

ETP4HPC's Strategic Research Agenda for High-Performance Computing in Europe 4 [article]

Michael Malms, Marcin Ostasz, Maike Gilliot, Pascale Bernier-Bruna, Laurent Cargemel, Estela Suarez, Herbert Cornelius, Marc Duranton, Benny Koren, Pascale Rosse-Laurent, María S. Pérez-Hernández, Manolis Marazakis (+11 others)
2020 Zenodo  
HPC form what we have come to call "The Digital Continuum".  ...  This Strategic Research Agenda (SRA) is the fourth High Performance Computing (HPC) technology roadmap developed and maintained by ETP4HPC, with the support of the EXDCI-2 project.  ...  ) deviating from the tra- Integration of heterogeneous resources ditional fat-tree topology in order to improve TCO by using less Numerous and diverse low-energy and more  ... 
doi:10.5281/zenodo.4605343 fatcat:lcsgbea5dzgdfmj5dkw6pr7vni

Toxicity Analysis and Cry Gene Profiling of Bacillus Thuringiensis Isolated from Western Ghats of Tamil Nadu State, India

A. Ramalakshmi, P. Annakodi, V. Udayasurian, V. Balasubramani
2018 Proceedings of the Indian National Science Academy  
In fact, there were methods of storing like Quipu of Incas and tools for calculating like Chinese counting rods.  ...  There are various evidences of calculation as an ancient activity [Tedre, 2014] that dates back to Babylonian days used for varieties of navigational, astronomical and other day-to-day needs.  ...  For example, a group of research labs may each have its own HPC cluster with physical proximity to it. All these HPC clusters can eventually be interconnected to form a cloud like environment.  ... 
doi:10.16943/ptinsa/2018/49413 fatcat:2w6rohpbava5zh6m26tsiz7qky


Gheorghe GÎLCĂ, BÎZDOACĂ Nicu - George
2015 Fiabilitate şi Durabilitate  
The paper emphasis bringing down the control complexity by reducing the number of actuators used, three, one for each degree of freedom. .  ...  This in turn simplifies the entire design processes and reduces the production cost. It also describes the stability issues and different walking phases in detail.  ...  operation until for fault rectification.  ... 
doaj:d70c6b7e79cc408699e5ac56232070a7 fatcat:wvodnclj7nbmdidejlu5uh6pui

Dagstuhl Reports, Volume 7, Issue 5, May 2017, Complete Issue [article]

First, we propose an alternative image based representation for the 3D content, generated by peers and collected in a sprite tree.  ...  Partial support by national funds through the Portuguese Foundation for Science and Technology (FCT) and by the European Regional Development Fund (FEDER) through COMPETE 2020 -Operational Programme for  ...  For ordered indexes, the resulting storage structures are log-structured merge trees (really forests with many trees!) and partitioned b-trees (a single b-tree with many internal partitions).  ... 
doi:10.4230/dagrep.7.5 fatcat:ipv6ltpp6ngejao35zzoqko2ry

Brunina_columbia_0054D_10893.pdf [article]

The integration of optics with memory technology constitutes a critical step for both optics and computing.  ...  This optically-connected architecture can further enable more resilient memory system realizations by expanding on current error dectection and correction memory protocols.  ...  The resulting tradeoff makes fat trees [29] a desirable topology for data centers; however, the resulting configuration is one with significant oversubscription of the data center interconnection network  ... 
doi:10.7916/d8rn3fzg fatcat:3hc2ac45qnccpelfneipakscfa

Dagstuhl Reports, Volume 5, Issue 10, October 2015, Complete Issue [article]

in dynamic routing, experience different travel times between common origin and destination.  ...  In future scenarios for transport in Smart Cities, mobility providers might control the routes taken by a significant share of vehicles on the road.  ...  Examples include GPUs, RDMA, and fat-tree topologies. Programming model MPI is often used as a library to program communicating applications on a HPC system.  ... 
doi:10.4230/dagrep.5.10 fatcat:u44u5pkszbayti24uerfh3wifu

INFN-CNAF Annual Report 2016 Editors Luca dell'Agnello Cover Design

Lucia Morganti, Elisabetta Ronchieri, Francesca Address
We extend our gratitude to CNAF-T1 for their continued support also beyond providing computing resources.  ...  The DAMPE mission was founded by the strategic priority science and technology projects in space science of the Chinese Academy of Sciences and in part by National Key Program for Research and Development  ...  However, we do not expect such contention in a non-blocking fat-tree network.  ...