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检索条件"任意字段=Proceedings of the 27th Spring Conference on Computer Graphics"

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Tridiagonalization of a symmetric dense matrix on a GPU cluster

Tridiagonalization of a symmetric dense matrix on a GPU clus...

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2013 IEEE 37th Annual computer Software and Applications conference, COMPSAC 2013

作者： Yamazaki, Ichitaro Dong, Tingxing Tomov, Stanimire Dongarra, Jack Electrical Engineering and Computer Science Department University of Tennessee Knoxville TN United States Computer Science and Mathematics Division Oak Ridge National Laboratory Oak Ridge TN United States School of Mathematics School of Computer Science University of Manchester Manchester United Kingdom

ISBN: (纸本)9780769549798

Symmetric dense Eigen value problems arise in many scientific and engineering simulations. In this paper, we use GPUs to accelerate its main computational kernel, the tridiagonalization of a dense symmetric matrix on a distributed multicore architecture. We then study the performance of this hybrid message-passing/shared-memory/GPU-computing paradigm on up to 16 compute nodes, each of which consists of 16 Intel Sandy Bridge processors and three NVIDIA GPUs. these studies show that such a hybrid paradigm can exploit the underlying hardware architecture and obtain significant speedups over a flat message-passing paradigm can, and they demonstrate a potential of efficiently solving large-scale Eigen value problems on a GPU cluster. Furthermore, these studies may provide insights on the general effects of such hybrid paradigms on emerging high-performance computers. © 2013 IEEE.

关键词： graphics processing unit

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27th ATEE spring conference on Social Justice, Media and Technology, ATEE 2021

27th ATEE Spring Conference on Social Justice, Media and Tec...

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27th ATEE spring conference on Social Justice, Media and Technology, ATEE 2021

ISBN: (纸本)9783031207761

the proceedings contain 19 papers. the special focus in this conference is on Social Justice, Media and Technology. the topics include: Educating Students at Teacher Education Faculties in Art Fields (Visual Arts and Music) in the Online Environment;"La scuola si Nutre del Territorio nel Quale Alberga" "the School is Nourished by the Local Context";Teaching in Upper Secondary Schools with High Migratory Complexity: the European Project QuaMMELOT;accessible School Textbooks for Students with Hearing Impairments;educational Robotics for Inclusive Design;teachers in a Searchable World: Findings from an Introductory Survey;teaching with Digital Conceptual Maps for the Development of Inclusive Processes;Teacher Professional Development on Social Inclusion: the PLEIADE Approach;educational Technologies, Social and Emotional Learning and School Inclusion: Challenges and Opportunities;engaging with Media Constructs and Power Dimensions in Initial Teacher Education: Enabling Student Teachers to Challenge Stereotypical Representations of Minorities in the Classroom;immersive Environments in Higher Education: the Digital Well-Being Perspective;cultures, Intersections, Networks. the Role of Algorithms in Defining Power Relations Based on Gender, Race, Class, Disability;integration of LifeComp and DigComp 2.2 as a theoretical Framework for Media Education;digital Citizenship Education Curriculum. Results of a National Investigation and Didactic Proposals;study and Analysis on the Student Response System Adoption: Experimentation in a Programming Course;learning Analytics to Foster Quality Culture in Education and Training Organizations;legalisation Issues and Reconfiguration of Education? Challenges for Nordic Teacher Education in the Digital Age.

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Using MATLAB in a graduate electrical engineering optimal control course

Using MATLAB in a graduate electrical engineering optimal co...

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proceedings of the 1997 27th Annual conference on Frontiers in Education. Part 1 (of 3)

作者： Azemi, Asad Yaz, Edwin Engin Penn State Univ Malvern United States

Control system design packages like MATLAB, MATRIXx, Control C, SIMNON, etc. have become essential ingredients of both undergraduate and graduate courses in the systems and controls area. this work describes our experience, at the Great Valley Campus of the Pennsylvania State University and the University of Arkansas, with the use of one of these packages, namely MATLAB with its Control Systems, Robust Control and LMI toolboxes in an optimal control course. In this paper we will describe those standard functions of MATLAB and Control Systems Toolbox that are most appropriate for use in an optimal control course. Next, we will focus on some special features of MATLAB that can be used to produce interactive simulations, using user interface controls. With the help of interactive simulations instructors can effectively illustrate the change in system response due to parameter variations. Examples illustrating these features are included. A discussion of how MATLAB helps in reducing the amount of time spent in performing computational homework assignments and the advantages of using graphics user interface control will follow. Finally, the general positive student reaction will be reported.

关键词： computer aided instruction

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Differentiated participation in social videogaming 15

Differentiated participation in social videogaming

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27th Australian computer-Human Interaction conference, OzCHI 2015

作者： Downs, John Vetere, Frank Smith, Wally Interaction Design Lab. University of Melbourne Australia

ISBN: (纸本)9781450336734

Social videogaming provides opportunities for individuals not only to engage directly in active gameplay but also to interact indirectly from the sidelines. We present a study of the differentiated nature of participation in gaming based on field observations of six families playing physical videogames in their homes. Building on existing theoretical frameworks, we distinguish three kinds of durable roles: players, audience members and bystanders. Going beyond this, we also identify a rich variety of spontaneous and ephemeral roles among the audience: spectators, orchestrators, managers, coaches, directors, puppeteers, commentators, hecklers, supporters, documenters, shadow players, and cheerleaders. We argue that through this richer understanding of the differentiated nature of participation in videogaming, designers might expand the reach of their games and respond to the potential for new experiences in the broad situation of domestic gaming. Copyright © 2015 ACM.

关键词： Interactive computer graphics

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Improving GPU performance prediction with data transfer modeling

Improving GPU performance prediction with data transfer mode...

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2013 IEEE 37th Annual computer Software and Applications conference, COMPSAC 2013

作者： Boyer, Michael Meng, Jiayuan Kumaran, Kalyan Department of Computer Science University of Virginia United States Leadership Computing Facility Argonne National Laboratory United States

ISBN: (纸本)9780769549798

Accelerators such as graphics processors (GPUs) have become increasingly popular for high performance scientific computing. Often, much effort is invested in creating and optimizing GPU code without any guaranteed performance benefit. To reduce this risk, performance models can be used to project a kernel's GPU performance potential before it is ported. However, raw GPU execution time is not the only consideration. the overhead of transferring data between the CPU and the GPU is also an important factor;for some applications, this overhead may even erase the performance benefits of GPU acceleration. To address this challenge, we propose a GPU performance modeling framework that predicts both kernel execution time and data transfer time. Our extensions to an existing GPU performance model include a data usage analyzer for a sequence of GPU kernels, to determine the amount of data that needs to be transferred, and a performance model of the PCIe bus, to determine how long the data transfer will take. We have tested our framework using a set of applications running on a production machine at Argonne National Laboratory. On average, our model predicts the data transfer overhead with an error of only 8%, and the inclusion of data transfer time reduces the error in the predicted GPU speedup from 255% to 9%. © 2013 IEEE.

关键词： graphics processing unit

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3D Ground Reaction Force Visualization onto Training Video for Sprint Training Support System 27

3D Ground Reaction Force Visualization onto Training Video f...

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27th International conference on Artificial Reality and Telexistence and 22nd Eurographics Symposium on Virtual Environments, ICAT-EGVE 2017

作者： Taketomi, Takafumi Yoshitake, Yasuhide Yamamoto, Goshiro Sandor, Cristian Kato, Hirokazu Nara Institute of Science and Technology Japan National Institute of Fitness and Sports Kanoya Japan Kyoto University Hospital Japan

ISBN: (纸本)9783038680529

We propose a method for visualizing 3D ground reaction forces for sprint training. Currently, sprinters can check their 3D ground force data using a 2D graph representation. In order to check the relationship between 3D ground force and their sprint form, they must check the 2D graph and a training video repeatedly. To allow simultaneous observation of the 2D graph and the training video, we use a mixed reality technology to overlay 3D ground reaction force onto the training video. In this study, we focus on 2D-3D registration between the image sequence and 3D ground reaction data. We achieved 2D-3D registration by using a constrained bundle adjustment approach. In the experiment, we apply our method to the training videos. the results confirm that our method can correctly overly 3D ground reaction force onto the videos. © 2017 the Author(s) Eurographics proceedings © 2017 the Eurographics Association.

关键词： three dimensional computer graphics

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TEAPOT: A toolset for evaluating performance, power and image quality on mobile graphics systems 13

TEAPOT: A toolset for evaluating performance, power and imag...

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27th ACM International conference on Supercomputing, ICS 2013

作者： Arnau, Jose-Maria Parcerisa, Joan-Manuel Xekalakis, Polychronis Computer Architecture Department Universitat Politecnica de Catalunya Barcelona Spain Intel Labs. Intel Corporation Santa Clara United States

ISBN: (纸本)9781450321303

In this paper we present TEAPOT, a full system GPU simulator, whose goal is to allow the evaluation of the GPUs that reside in mobile phones and tablets. To this extent, it has a cycle accurate GPU model for evaluating performance, power models for the GPU, the memory subsystem and for OLED screens, and image quality metrics. Unlike prior GPU simulators, TEAPOT supports the OpenGL ES 1.1/2.0 API, so that it can simulate all commercial graphical applications available for Android systems. To illustrate potential uses of this simulating infrastructure, we perform two case studies. We first turn our attention to evaluating the impact of the OS when simulating graphical applications. We show that the overall GPU power/performance is greatly affected by common OS tasks, such as image composition, and argue that application level simulation is not sufficient to understand the overall GPU behavior. We then utilize the capabilities of TEAPOT to perform studies that trade image quality for energy. We demonstrate that by allowing for small distortions in the overall image quality, a significant amount of energy can be saved. © 2013 ACM.

关键词： graphics processing unit

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Mirroring bodily experiences over time

Mirroring bodily experiences over time

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27th International conference Extended Abstracts on Human Factors in Computing Systems, CHI 2009

作者： Vaara, Elsa Kosmack Höök, Kristina tholander, Jakob Mobile Life Swedish Institute of Computer Science Box 1263 SE-16429 Kista Sweden Mobile Life Stockholm University Forum 100 SE-16440 Kista Sweden

ISBN: (纸本)9781605582474

the Affective Health system is a mobile lifestyle application that aims to empower people to reflect on their lives and lifestyles. the system logs a mixture of biosensor-data and other contextually oriented data and transforms these to a colorful, animated expression on their mobiles. It is intended to create a mirror and thereby empower users to see activity patterns and relate these to their experiences of stress. People's different cultural backgrounds and their different physiological and psychological composition give them different perceptions and associations of time. We explore the time dimension of our system through working through a set of different designs that organize events as time going linearly forward, in a circular movement or relating to geographical places. Here we discuss the process of designing a mobile interface for presenting temporal data in a way that allows multiple and subjective interpretation.

关键词： graphics Interaction Time Visualization

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Analyzing optimization techniques for power efficiency on heterogeneous platforms

Analyzing optimization techniques for power efficiency on he...

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2013 IEEE 37th Annual computer Software and Applications conference, COMPSAC 2013

作者： Ukidave, Yash Kaeli, David R. Department of Electrical and Computer Engineering Northeastern University Boston United States

ISBN: (纸本)9780769549798

graphics processing units (GPUs) have become widely accepted as the computing platform of choice in many high performance computing domains. the availability of programming standards such as OpenCL are used to leverage the inherent parallelism offered by GPUs. Source code optimizations such as loop unrolling and tiling when targeted to heterogeneous applications have reported large gains in performance. However, given the power consumption of GPUs, platforms can exhaust their power budgets quickly. Better solutions are needed to effectively exploit the power-efficiency available on heterogeneous systems. In this work, we evaluate the power/performance efficiency of different optimizations used on heterogeneous applications. We analyze the power/performance trade-off by evaluating energy consumption of the optimizations. We compare the performance of different optimization techniques on 4 different Fast Fourier Transform implementations. Our study covers discrete GPUsand shared memory GPUs (APUs), and includes hardware from AMD (Llano APUs and the Southern Islands GPU), Nvidia (Kepler) and Intel (Ivy Bridge) as test platforms. the study identifies the architectural and algorithmic factors which can most impact power consumption. We explore arange of application optimizations which show an increase in power consumption by 27%, but result in more than a 1.8Xspeedup in performance. We observe a 11% variation in energy consumption among different optimizations. We highlight how different optimizations can improve the execution performance of a heterogeneous application, but also impact power efficiency of the application. © 2013 IEEE.

关键词： graphics processing unit

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Modern Advances in Applied Intelligence 1

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丛书名： Lecture Notes in computer Science

1000年

作者： Moonis Ali Jeng-Shyang Pan Shyi-Ming Chen Mong-Fong Horng

ISBN: (数字)9783319074559

ISBN: (纸本)9783319074542

the two volume set LNAI 8481 and 8482 constitutes the refereed conference proceedings of the 27th International conference on Industrial, Engineering and Other Applications of Applied Intelligent Systems, IEA/AIE 2014, held in Kaohsiung, Taiwan, in June 2014. the total of 106 papers selected for the proceedings were carefully reviewed and selected from various submissions. the papers deal with a wide range of topics from applications of applied intelligent systems to solve real-life problems in all areas including engineering, science, industry, automation and robotics, business and finance, medicine and biomedicine, bioinformatics, cyberspace and human-machine interaction.

关键词： Artificial Intelligence Information Systems Applications (incl. Internet) Algorithm Analysis and Problem Complexity Data Mining and Knowledge Discovery computer Imaging, Vision, Pattern Recognition and graphics

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