Search results for "SCALE"
showing 10 items of 5180 documents
Designing a graphics processing unit accelerated petaflop capable lattice Boltzmann solver: Read aligned data layouts and asynchronous communication
2016
The lattice Boltzmann method is a well-established numerical approach for complex fluid flow simulations. Recently, general-purpose graphics processing units (GPUs) have become available as high-performance computing resources at large scale. We report on designing and implementing a lattice Boltzmann solver for multi-GPU systems that achieves 1.79 PFLOPS performance on 16,384 GPUs. To achieve this performance, we introduce a GPU compatible version of the so-called bundle data layout and eliminate the halo sites in order to improve data access alignment. Furthermore, we make use of the possibility to overlap data transfer between the host central processing unit and the device GPU with com…
Acoustic wave tunneling across a vacuum gap between two piezoelectric crystals with arbitrary symmetry and orientation
2022
It is not widely appreciated that an acoustic wave can “jump” or “tunnel” across a vacuum gap between two piezoelectric solids, nor has the general case been formulated or studied in detail. Here, we remedy that situation, by presenting a general formalism and approach to study such an acoustic tunneling effect between two arbitrarily oriented anisotropic piezoelectric semi-infinite crystals. The approach allows one to solve for the reflection and transmission coefficients of all the partial-wave modes, and is amenable to practical numerical or even analytical implementation, as we demonstrate by a few chosen examples. The formalism can be used in the future for quantitative studies of the …
Structural Equation Modeling in Research on Brand Capital in Higher Education
2016
This research is done in order to examine the role of the brand capital in higher education. For this purpose, we analyze the main contributions of the literature related to the study of the brand capital and its application in the educational sector, identifying which variables determine the brand capital in the higher education sector. Once we establish the susceptible brand capital in the higher education sector, an empirical research is done by using a questionnaire developed in Spanish language with a Likert scale of grade 5 in which 1 point means "strongly disagree" and 5 mean "strongly agree", being based on the measurement scales…
Energy Efficient Optimization for Wireless Virtualized Small Cell Networks With Large-Scale Multiple Antenna
2017
Wireless network virtualization is envisioned as a promising framework to provide efficient and customized services for next-generation wireless networks. In wireless virtualized networks (WVNs), limited radio resources are shared among different services providers for providing services to different users with heterogeneous demands. In this paper, we propose a resource allocation scheme for an orthogonal frequency division multiplexing-based WVN, where one small cell base station equipped with a large number of antennas serves the users with different service requirements. In particular, with the objective to obtain the energy efficiency in the uplink, a joint power, subcarrier, and antenn…
The Relationship between Perceived Emotional Intelligence, Work Engagement, Job Satisfaction, and Burnout in Italian School Teachers: An Exploratory …
2020
The study investigates the relationship between perceived emotional intelligence, burnout, work engagement, and job satisfaction in 238 Italian school teachers. The mean age was 50 years, ranged from 26 to 66 (SD = 9.16). The research protocol included a demographics data sheet, the Wong and Law Emotional Intelligence Scale (WLEIS; Wong & Law, 2002), the Copenhagen Burnout Inventory (CBI; Kristensen, Borritz, Villadsen, & Christensen, 2005), the Utrecht Work Engagement Scale (UWES; Schaufeli, Bakker, & Salanova, 2006), and the Organizational Satisfaction Scale (QSO; Cortese, 2001). Several international studies already demonstrated an association among these variable…
The Interplay of Compassion, Subjective Happiness and Proactive Strategies on Kindergarten Teachers’ Work Engagement and Perceived Working Environmen…
2020
Background: The current cross-sectional study examines a model that was designed to advance understanding of the interplay between compassion towards teachers expressed by teaching colleagues, subjective happiness, proactive strategies and kindergarten teachers&rsquo
Compression and load balancing for efficient sparse matrix-vector product on multicore processors and graphics processing units
2021
We contribute to the optimization of the sparse matrix-vector product by introducing a variant of the coordinate sparse matrix format that balances the workload distribution and compresses both the indexing arrays and the numerical information. Our approach is multi-platform, in the sense that the realizations for (general-purpose) multicore processors as well as graphics accelerators (GPUs) are built upon common principles, but differ in the implementation details, which are adapted to avoid thread divergence in the GPU case or maximize compression element-wise (i.e., for each matrix entry) for multicore architectures. Our evaluation on the two last generations of NVIDIA GPUs as well as In…
Teenage Violence Toward Parents – in Search of the Theoretical Bases of a Research Tool
2020
The article contains an analysis of results of the available research on the phenomenon of children’s violence toward their parents. The main purpose of this interpretation is to search for the theoretical structure of a prepared research tool, initially called the Teen Violence Scale Toward Parents (TVSTP). The subject of the analyzes were works and research reports as well as police statistics containing information on the phenomenon of domestic violence, including teenage violence toward parents. As a result of the analysis, the theoretical function of the proposed research tool was distinguished, referring to types of violence possible to diagnose within this area. The proposed tool was…
Euroopan Unionin kilpailupolitiikka ja vientitoimialojen yritysten horisontaaliset fuusiot Suomessa
2002
L'interaction lieu – objet comme conceptualisation de l'expérience vécue : proposition d'un modèle intégrateur
2008
This article proposes to reconsider the concept of lived experience by the consumer which is the object of a normative vision in marketing. Thanks to the concept of value, we seek to improve the conceptualization of the experience by defining it as an interaction place - object. We conduct an empirical analysis on the field of live shows to compare rival modellings of lived experience. The results show the importance of the consumption place as frame of lived experience and confirm an indirect influence of the place on global perceived value. Finally, they allow a validation of differents scales used in this model.