Search results for "instruction"
showing 10 items of 443 documents
Spectral evolution simulation on leading multi-socket, multicore platforms
2011
Spectral evolution simulations based on the observed Very Long Baseline Interferometry (VLBI) radio-maps are of paramount importance to understand the nature of extragalactic objects in astrophysics. This work analyzes the performance and scaling of a spectral evolution algorithm on three leading multi-socket, multi-core architectures. We evaluate three parallel models with different levels of data-sharing: a sharing approach, a privatizing approach and a hybrid approach. Our experiments show that the data-privatizing model is reasonably efficient on medium scale multi-socket, multi-core systems (up to 48 cores) while regardless algorithmic and scheduling optimizations, sharing approach is …
SWAPHI-LS: Smith-Waterman Algorithm on Xeon Phi coprocessors for Long DNA Sequences
2014
As an optimal method for sequence alignment, the Smith-Waterman (SW) algorithm is widely used. Unfortunately, this algorithm is computationally demanding, especially for long sequences. This has motivated the investigation of its acceleration on a variety of high-performance computing platforms. However, most work in the literature is only suitable for short sequences. In this paper, we present SWAPHI-LS, the first parallel SW algorithm exploiting emerging Xeon Phi coprocessors to accelerate the alignment of long DNA sequences. In SWAPHI-LS, we have investigated three parallelization approaches (naive, tiled, and distributed) in order to deeply explore the inherent parallelism within Xeon P…
Learning Content Development methodology for Mobile Devices
2015
Abstract Mobile devices are becoming increasingly popular; basically mobile devices are reaching all levels of society. Thanks to the popularity of mobile devices, mobile learning has become great tool for delivering educational resources. The continuously increasing demand for mobile technology based learning materials, renders adoption of educational resources for these requirements. Technology by itself does not contribute much to education that is why the aim of this research is to present and evaluate methodology for visualisation and production of electronic materials in mobile environments. Methodology focuses on instructional design and mobile content design and the navigation contr…
Mixed camera angles viewpoints improve learning medical hand procedure in nurse training
2017
Communication donnée le 31 Août 2017 lors de la session J 10 : Instructional Design, Learning and Instructional TechnologyComprehension of Text and Graphics - C; International audience; Few previous research showed that camera viewpoints differences played a role in learning hand procedures from videos. However, learning videos on hand procedures showing only single viewpoints have been investigated, for example face to face vs. over the shoulder views. Further, the effect of seeing the human model's face and the effect of showing hand actions have also been studied. The results of these research are not always consistent. The goal of the present research was to investigate the effect of mi…
Demonstration as an aid to learning from animation
2017
Communication donnée le 1er septembre 2017 lors du symposium : Learning with dynamic media in formal and informal contexts (session K 26); International audience; The effectiveness of requiring learners to generate operational demonstrations while viewing an animation of a working mechanism was explored as a means of improving their animation processing. We assumed that the demonstration requirement would enhance learner extraction of key dynamic information needed for building a high quality mental model. It is expected that compared with note-taking controls, those in the demonstration group will give more attention to the spatiotemporal relationships amongst the mechanism’s components. T…
Exploiting selective instruction reuse and value prediction in a superscalar architecture
2009
In our previously published research we discovered some very difficult to predict branches, called unbiased branches. Since the overall performance of modern processors is seriously affected by misprediction recovery, especially these difficult branches represent a source of important performance penalties. Our statistics show that about 28% of branches are dependent on critical Load instructions. Moreover, 5.61% of branches are unbiased and depend on critical Loads, too. In the same way, about 21% of branches depend on MUL/DIV instructions whereas 3.76% are unbiased and depend on MUL/DIV instructions. These dependences involve high-penalty mispredictions becoming serious performance obstac…
Organizing Shared Digital Reading in Groups: Optimizing the Affordances of Text and Medium
2019
Children develop their language when they explore and talk about literary texts. In this study, we explore the design of shared digital reading as a basis for critical reflection on the reading situation in an institutional context with its given opportunities and limitations. We examine six videotaped readings of one specific picture book app, with a focus on the strategies used by teachers in early childhood education and care institutions to control children’s access to the medium and the types of verbal engagement (about the story and about the medium) that are generated by these different strategies. We use qualitative and quantitative analysis of video data. A qualitative categorizat…
Collaborative Educational Leadership: The Emergence of Human Interactional Sense-Making Process as a Complex System
2014
The article aims at explicating the emergence of human interactional sense‐making process within educational leadership as a complex system. The kind of leadership is understood as a holistic entity called collaborative leadership. There, sense‐making emerges across interdependent domains, called attributes of collaborative leadership. The attributes give rise to the complex system. They are suggested to be the very agents, i.e. both the source and the outcome of the synergetic sense‐making process. Hence, the agents are not the single persons involved who, however, supply the collective attributes that are modified through human interaction in a holistic way. For studying the emergence pro…
A Participant Experience Method for Illustrating Individuals’ Experiences in the Course of an Evolving Virtual Learning Community
2003
Early definitions of virtual learning communities often abstracted participants from their offline environments. However, often students’ virtual and physical environments are not essentially separated. Likewise, scholars should become more sensitive to and aware of their research principles and practices guiding studies in virtual settings and especially, in the intersections of on- and offline contexts. The participant experience method discussed in this paper, grants access also to the events outside the virtual learning context connecting various social settings and simultaneous events. However, the use of participant experience methods requires critical reflection during its various ph…
Software and Standards in an Emerging Domain
2010
This paper considers the software market in the field of e-Learning and Technology Enhanced Learning (TEL) through observing standardization developments in the domain. A model of software market evolution suggests that observations on development and deployment of standards in the domain indicate the status on the market. As the model holds, in a mature phase, level of standardization is high and the number of competing standards low. The result of the study is, there appears to be a market, but a heterogeneous one, with hesitation on dominant designs and an overall modest level of standards adoption. Content standardization enables the (re)use of the learning content in multiple formats w…