scholarly journals Operating Task Redistribution in Hyperconverged Networks

2018 ◽  
Vol 8 (3) ◽  
pp. 1629 ◽  
Author(s):  
Mohammad Alhihi ◽  
Mohammad Reza Khosravi
Keyword(s):  
Distributed Processing ◽  
Packet Delay ◽  
Average Packet Delay ◽  
Task Distribution ◽  
Rational Distribution ◽  
Potential System ◽  
National University ◽  
E Learning ◽  
Searching Method ◽  
Task Sets

In this article, a searching method for the rational task distribution through the nodes of a hyperconverged network is presented in which it provides the rational distribution of task sets towards a better performance. With using new subsettings related to distribution of nodes in the network based on distributed processing, we can minimize average packet delay. The distribution quality is provided with using a special objective function considering the penalties in the case of having delays. This process is considered in order to create the balanced delivery systems. The initial redistribution is determined based on the minimum penalty. After performing a cycle (iteration) of redistribution in order to have the appropriate task distribution, a potential system is formed for functional optimization. In each cycle of the redistribution, a rule for optimizing contour search is used. Thus, the obtained task distribution, including the appeared failure and success, will be rational and can decrease the average packet delay in the hyperconverged networks. The effectiveness of our proposed method is evaluated by using the model of hyperconverged support system of the university E-learning provided by V.N. Karazin Kharkiv National University. The simulation results based on the model clearly confirm the acceptable and better performance of our approach in comparison to the classical approach of task distribution.

Average packet delay of CSMA/CA with finite user population

2005 ◽  
Vol 9 (3) ◽  
pp. 273-275
Author(s):  
A. Gkelias ◽  
M. Dohler ◽  
V. Friderikos ◽  
A.H. Aghvami
Keyword(s):  
Packet Delay ◽  
Average Packet Delay

scholarly journals Evaluating the reality of using e-learning system (Moodle) in university learn-ingUnder the pandemic of Covid 19 among physical education students (PES) at West Bank universities- Palestine

2020 ◽  
Vol 8 (4) ◽  
pp. 89-109
Author(s):  
Hameed Salameh ◽  
Ali Qadoumi ◽  
Mutasem Abu Alia ◽  
Mohamed Qadoumi
Keyword(s):  
West Bank ◽  
Academic Staff ◽  
Learning System ◽  
Education Students ◽  
Physical Education Students ◽  
Gender Study ◽  
National University ◽  
E Learning ◽  
Training Courses ◽  
Palestinian Universities

The study aimed to identify the degree of benefit and difficulty in using e-learning system (Moodle) in university learning Under the pandemic of Covid 19 among PES at West Bank universities- Palestine, in addition to determining the differences according to variables of gender, study level & university. The researchers used descriptive& analytic approach. The study was conducted on a random sample of (103) studentsWhich represents a percentage of (17.13) from PTUK &An-Najah National University. In order to collect data, the researchers prepared two scales are They are (degree of benefit, degree of difficulty) from students' use of the educational Moodle system. The results of the study revealed the following: - The degree of benefit from using e-learning system (Moodle) in university learningUnder the pandemic of Covid 19 among study sample were low. - The degree of difficulty from using e-learning system (Moodle) in university learningUnder the pandemic of Covid 19 among study sample were middle. - There weren't statistically significant differences in benefit & difficulty from using e-learning system (Moodle) in university learning Under the pandemic of Covid 19 among study sample according to variables of gender, study level & university.The researchers recommend the need toHold training courses on the use of the various e-learning systems in Palestinian universities for students and academic staff.

Efficiency and problems of distance learning: Experience of Russia and Kazakhstan

2021 ◽  
pp. 21-32
Author(s):  
A. S. Adzhemov ◽  
A. B. Denisova ◽  
D. Zh. Satybaldina ◽  
Sh. Zh. Seilov
Keyword(s):  
Distance Learning ◽  
Large Scale ◽  
Learning Experience ◽  
Systematic Analysis ◽  
Limited Mobility ◽  
Existing Problems ◽  
Teachers And Students ◽  
National University ◽  
E Learning ◽  
Distance Work

The last decade has been marked by large-scale and rapid changes in education, taking place on the basis of modern infocommunication and digital technologies, new hardware and software, as well as teaching methods updated in accordance with this. The limited mobility of citizens due to the coronavirus pandemic further intensified these processes, when, even with a low readiness of educational institutions to switch to distance (electronic, remote) technologies, teachers and students had to quickly master these technologies and use them in practice. The resulting experience allows us to identify not only problematic, sometimes even negative, features of distance learning, but also to make sure of the undoubted advantages of these technologies. The article points out the need for a systematic analysis when deciding on the use of e-learning, taking into account both technical and methodological, as well as personnel readiness for the implementation of this technology.The article analyzes these problems using the example of teaching both technical and humanitarian disciplines. The experience of distance work is analyzed on the example of cooperation between the Moscow Technical University of Communications and Informatics (Russia) and the L. N. Gumilyov Eurasian National University (Kazakhstan), which in its practical activities purposefully invites foreign professors to deliver lectures, guide undergraduates, etc., including those based on distance technology. The data of an anonymous questionnaire survey of students of these universities are given, allowing to assess the effectiveness of the decisions made, as well as to clarify the existing problems.

The Analysis of Input Queueing Techniques on a Crosspoint Packet Switch

1997 ◽  
Vol 07 (04) ◽  
pp. 319-331
Author(s):  
Jung Hoon Paik ◽  
Chae Tak Lim
Keyword(s):  
Markov Chain ◽  
Packet Delay ◽  
Contention Resolution ◽  
Input Buffer ◽  
New Approach ◽  
Average Packet Delay ◽  
N Input ◽  
Packet Switch ◽  
Input Queueing ◽  
The Relationship

In this paper, an N × N input-buffered crosspoint packet switch which selects a Head of the Line, HOL, packet in contention randomly is analyzed with a new approach. The approach is based on both a Markov chain representation of the input buffer and the probability that a HOL packet is successfully served. The probability as a function of N is derived, and it makes it possible to express the average packet delay and the average number of packets in the buffer as a function of N. The new contention resolution policy based on the occupancy of the input buffer is also presented and analyzed with this same approach and the relationship between the two selection policies is analyzed.

scholarly journals A Decentralised Task Mapping Approach for Homogeneous Multiprocessor Network-On-Chips

2009 ◽  
Vol 2009 ◽  
pp. 1-14 ◽  
Author(s):  
Peter Zipf ◽  
Gilles Sassatelli ◽  
Nurten Utlu ◽  
Nicolas Saint-Jean ◽  
Pascal Benoit ◽  
...  
Keyword(s):  
Exact Algorithm ◽  
Communication Overhead ◽  
Processor Array ◽  
Task Mapping ◽  
Enumeration Algorithm ◽  
Task Distribution ◽  
Run Time ◽  
On Chip ◽  
Task Sets

We present a heuristic algorithm for the run-time distribution of task sets in a homogeneous Multiprocessor network-on-chip. The algorithm is itself distributed over the processors and thus can be applied to systems of arbitrary size. Also, tasks added at run-time can be handled without any difficulty, allowing for inline optimisation. Based on local information on processor workload, task size, communication requirements, and link contention, iterative decisions on task migrations to other processors are made. The mapping results for several example task sets are first compared with those of an exact (enumeration) algorithm with global information for a processor array. The results show that the mapping quality achieved by our distributed algorithm is within 25% of that of the exact algorithm. For larger array sizes, simulated annealing is used as a reference and the behaviour of our algorithm is investigated. The mapping quality of the algorithm can be shown to be within a reasonable range (below 30% mostly) of the reference. This adaptability and the low computation and communication overhead of the distributed heuristic clearly indicate that decentralised algorithms are a favourable solution for an automatic task distribution.

scholarly journals COMPLIANCE ACADEMIC INTEGRITY LEARNING ACHIEVEMENTS OF EDUCATIONAL APPLICANTS IN THE PROCESS OF DISTANCE LEARNING

2020 ◽  
pp. 143-162
Author(s):  
Oleksii Nalyvaiko ◽  
Olena Kalistova ◽  
Danylo Poliakov
Keyword(s):  
Distance Learning ◽  
Teacher Training ◽  
Academic Integrity ◽  
Interesting Problem ◽  
Academic Literature ◽  
National University ◽  
E Learning ◽  
Key Issues ◽  
Software And Hardware ◽  
Methods Of Control

This article deals with the problem of respect for academic integrity. The relevance of this research consists in the quarantine measures, conducted be the Ukrainian government, in other words students could not attend all the classes in person. So that created an interesting problem, laying in the issues of respect for academic integrity. It has been analyzed and discussed by the authors. They also have defined and described the meaning of such concepts as ‘respect for academic integrity’, ‘distance learning’ and ‘e-learning’. It is specially noted main differences between distance learning and e-learning. The academic literature on this topic is analyzed and described in short. Data are given about the poll conducted among the students of V. N. Karazin Kharkiv National University on GoogleForms. The authors prepared ten questions related to respect for academic integrity during distance learning. The survey deals with key issues of respect for academic integrity problems as software and hardware of classes, during work in class, doing homework and term tests, evaluation of the effectiveness of methods of control, main reasons of disrespect for academic integrity and influence of that. Conclusions are drawn about main issues of distance learning, so we provided a reader with possible ways to cope with them. Recommendations are given for teachers and officials. The authors recommended to use some additional applications to control the students’ behavior during classes and doing tests, to conduct teacher training to deal with problems of disrespect for academic integrity, to elaborate official recommendations, to stimulate students to respect for academic integrity. The article is of great interest for pedagogical staff, officials, students and anybody interested in this topic.

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