2,469 Hits in 9.3 sec

On Memory and I/O Efficient Duplication Detection for Multiple Self-clean Data Sources [chapter]

Ji Zhang, Yanfeng Shu, Hua Wang
2010 Lecture Notes in Computer Science  
Kremer, Thomas Seidl (RWTH Aachen University, Germany) • Efficient Skyline Maintenance for Streaming Data with Partially-Ordered Domains Yuan Fang (Institute for Infocomm Research, Singapore), Chee-Yong  ...  • Air-Indexing on Error Prone Communication Channels ••• Distributed Cache Indexing for Efficient Subspace Skyline Computation in P2P Networks Lijiang Chen, Bin Cui (Peking University, China), Linhao Xu  ... 
doi:10.1007/978-3-642-14589-6_14 fatcat:utkcwnmy6fbj5jt7ryvrk2pu3y

Application-Tailored I/O with Streamline

Willem de Bruijn, Herbert Bos, Henri Bal
2011 ACM Transactions on Computer Systems  
It improves performance of I/O-bound applications (such as webservers and streaming media applications) by constructing tailor-made I/O paths through the operating system for each application at runtime  ...  Streamline automates optimization and only presents users a clear, concise job control language based on Unix pipelines.  ...  Acknowledgments We are grateful to Kees Verstoep and the anonymous TOCS reviewers for commenting on earlier drafts of the paper, Hamid Bazoobandi for helping with the evaluation of splicing, and Tudor  ... 
doi:10.1145/1963559.1963562 fatcat:z4z5yvufjvfvlcugtkdtmy6fc4

Rio: A System Solution for Sharing I/O between Mobile Systems [article]

Ardalan Amiri Sani, Kevin Boos, Min Hong Yun, Lin Zhong
2013 arXiv   pre-print
There exist many novel use cases for allowing an application on one mobile system to utilize I/O devices from another.  ...  This paper presents Rio, an I/O sharing solution that supports unmodified applications and exposes all the functionality of an I/O device for sharing.  ...  memory efficiency.  ... 
arXiv:1312.4931v1 fatcat:5eppiili7jc5nnuyvdk6xh3hqi

Architectural and Operating System Support for Virtual Memory

Abhishek Bhattacharjee, Daniel Lustig
2017 Synthesis Lectures on Computer Architecture  
Thank you also to Trey Cain, Derek Hower, Lisa Hsu, Aamer Jaleel, Yatin Manerkar, Michael Pellauer, and Caroline Trippel for the countless helpful discussions about virtual memory and memory system behavior  ...  On a personal note, we would like to thank Shampa Sanyal for enabling our research endeavors, and we would like to thank our respective families for making this all possible in the first place.  ...  to the non-volatile I/O storage.  ... 
doi:10.2200/s00795ed1v01y201708cac042 fatcat:4re5afn53jhu7ezxwtb25ja3ca

A Primer on Memory Consistency and Cache Coherence, Second Edition

Vijay Nagarajan, Daniel J. Sorin, Mark D. Hill, David A. Wood
2020 Synthesis Lectures on Computer Architecture  
as other FENCEs for I/O operations.  ...  Third, Power has three kinds of FENCEs (and more for I/O memory), whereas XC has only one FENCE. • SYNC or HWSYNC ("HW" means "heavy weight" and "SYNC" stands for "synchronization") orders all accesses  ...  turn would 8 invalidate the L1 cached copy of data1 and respond with an ack.  ... 
doi:10.2200/s00962ed2v01y201910cac049 fatcat:diry32l6dva5xbsgzuc7fvq7ie

ViPIOS - VIenna Parallel Input Output System: Language, Compiler and Advanced Data Structure Support for Parallel I/O Operations [article]

Erich Schikuta, Helmut Wanek, Heinz Stockinger, Kurt Stockinger, Thomas Fürle, Oliver Jorns, Christoph Löffelhardt, Peter Brezany, Minh Dang, Thomas Mück
2018 arXiv   pre-print
Tackling this issue, we develop an input/output system designed for highly efficient, scalable and conveniently usable parallel I/O on distributed memory systems.  ...  Based on this formal model we designed and developed an I/O runtime system, ViPIOS, which provides support for several issues, as - parallel access to files for read/write operations, - optimization of  ...  The appendix gives a detailed survey of all the groups and systems mentioned in the Dictionary part and compares the features.  ... 
arXiv:1808.01166v1 fatcat:gcfewrlk5fcqlbdztveocldqim

SeqKit: A Cross-Platform and Ultrafast Toolkit for FASTA/Q File Manipulation

Wei Shen, Shuai Le, Yan Li, Fuquan Hu, Quan Zou
2016 PLoS ONE  
SeqKit is open source and available on Github at  ...  Existing tools only implement some of these manipulations, and not particularly efficiently, and some are only available for certain operating systems.  ...  , author of BBMaps, for advice on naming SeqKit and adding accuracy evaluation in benchmarks.  ... 
doi:10.1371/journal.pone.0163962 pmid:27706213 pmcid:PMC5051824 fatcat:jx4iuxjzsfhwhai27ozuzh2ghm

Resilient die-stacked DRAM caches

Jaewoong Sim, Gabriel H. Loh, Vilas Sridharan, Mike O'Connor
2013 Proceedings of the 40th Annual International Symposium on Computer Architecture - ISCA '13  
In this paper, we present a DRAM cache organization that uses errorcorrecting codes (ECCs), strong checksums (CRCs), and dirty data duplication to detect and correct a wide range of stacked DRAM failures  ...  While conventional off-chip memory provides ECC support by adding one or more extra chips, this may not be practical in a 3D stack.  ...  Acknowledgments We would like to thank the Georgia Tech HPArch members and the anonymous reviewers for their suggestions and feedback.  ... 
doi:10.1145/2485922.2485958 dblp:conf/isca/SimLSO13 fatcat:n6uix5stxnag7dambcoqhtoy4a

Live virtual machine migration techniques: Survey and research challenges

D. Kapil, E. S. Pilli, R. C. Joshi
2013 2013 3rd IEEE International Advance Computing Conference (IACC)  
Live migration is a useful tool for migrating OS instances across distant physical of data centers and clusters.  ...  Cloud is an emerging technology in the world of information technology and is built on the key concept of virtualization.  ...  The important reasons for the decline are a host OS communication and memory writing. They also analyze the reasons of I/O performance decline.  ... 
doi:10.1109/iadcc.2013.6514357 fatcat:sq6nsbpwpjfhvl6k3dg4xxzusu

Supporting Streaming Updates in an Active Data Warehouse

Neoklis Polyzotis, Spiros Skiadopoulos, Panos Vassiliadis, Alkis Simitsis, Nils-Erik Frantzell
2007 2007 IEEE 23rd International Conference on Data Engineering  
, and (b) sharing the I/O cost of accessing R across multiple tuples of S.  ...  We present an experimental study that validates the performance of MESHJOIN on synthetic and real-life data.  ...  This work supported by PYTHAGO-RAS EPEAEK II programme, EU and Greek Ministry of Education, co-funded by the European Social Fund (75%) and National Resources (25%).  ... 
doi:10.1109/icde.2007.367893 dblp:conf/icde/PolyzotisSVSF07 fatcat:5wywvrab4zcanaj4tslbioqyc4

New Products

D.A. Michalopoulos
1975 Computer  
The Recortec Computer Tape Copier is a new product for duplication, verification, cleaning and testing of magnetic tape.  ...  Optional analog and digital I/O is also offered.  ...  REMEX also offers three flexible disk system software levels: a complete operating system for PDP-11 users, a unique "I/O enhancement" package for the system with less than 8K memory, and basic driver  ... 
doi:10.1109/c-m.1975.218960 fatcat:dwrsg6g53zcuvj7unuzldxrjmy


Julien Subercaze, Christophe Gravier, Jules Chevalier, Frederique Laforest
2016 Proceedings of the VLDB Endowment  
The advent of semantic data on the Web requires efficient reasoning systems to infer RDF and OWL data.  ...  Our measurements on synthetic and real-world datasets show improvements over competitors on RDFS-Plus, and up to several orders of magnitude for transitivity closure.  ...  The authors would also like to thank Satish Nadathur for his help on sorting algorithms, Jacopo Urbani for his help with WebPIE and QueryPIE and the authors of RDFox for their help in configuring their  ... 
doi:10.14778/2904121.2904123 fatcat:6ncfo5nx2zbydihf4dbxlzgc6q

A survey on virtual machine migration and server consolidation frameworks for cloud data centers

Raja Wasim Ahmad, Abdullah Gani, Siti Hafizah Ab. Hamid, Muhammad Shiraz, Abdullah Yousafzai, Feng Xia
2015 Journal of Network and Computer Applications  
Modern Cloud Data Centers exploit virtualization for efficient resource management to reduce cloud computational cost and energy budget.  ...  Furthermore, a Cloud Data Centre exploits server consolidation and DVFS methods to optimize energy consumption.  ...  Acknowledgment This work is fully sponsored by Bright Spark Unit and partially sponsored by the Malaysian Ministry of Education under the High Impact Research Grant of University Malaya UM.C/625/1/HIR/  ... 
doi:10.1016/j.jnca.2015.02.002 fatcat:2llyxnuvdjbetgfsooejhy2lwa

The Stratosphere platform for big data analytics

Alexander Alexandrov, Rico Bergmann, Stephan Ewen, Johann-Christoph Freytag, Fabian Hueske, Arvid Heise, Odej Kao, Marcus Leich, Ulf Leser, Volker Markl, Felix Naumann, Mathias Peters (+6 others)
2014 The VLDB journal  
We present Stratosphere, an open-source software stack for parallel data analysis.  ...  Stratosphere brings together a unique set of features that allow the expressive, easy, and efficient programming of analytical applications at very large scale.  ...  Acknowledgments We would like to thank the Master students that worked on the Stratosphere project and implemented many components of the system: Thomas Bodner, Christoph Brücke, Erik Nijkamp, Max Heimel  ... 
doi:10.1007/s00778-014-0357-y fatcat:ficnpssbvjdatjs3gewa4jdd7m

Methodology for validating Nest Memory Management Unit

Nandhini Rajaiah, Jayakumar Sankarannair, Larry Leitner
2019 EAI Endorsed Transactions on Cloud Systems  
One such unit to cater to newer workloads in recent superscalar processors is the Nest Memory Management Unit (NMMU), a memory management unit for all I/O devices.  ...  The processor core storage exception handlers are leveraged to minimize the validation tool software development effort and to increase the efficiency of validation as well.  ...  ., for his valuable feedback and support in completing this paper.  ... 
doi:10.4108/eai.15-3-2019.162139 fatcat:wnfxgv3bgnakri3pqcuz2pbcoa
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