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Home > H Ardware S Oftware D Istributed Rtos a Rchitecture F or M Ultiprocessor B Ased R Eal T Ime H Igh D Ensity M Edia a Pplications

H Ardware S Oftware D Istributed Rtos a Rchitecture F or M Ultiprocessor B Ased R Eal T Ime H Igh D Ensity M Edia a Pplications

Thesis Info

Access Option

External Link

Author

Rahmatullah, Muhammad Mohsin

Program

PhD

Institute

University of Engineering and Technology

City

Taxila

Province

Punjab

Country

Pakistan

Thesis Completing Year

2009

Thesis Completion Status

Completed

Subject

Applied Sciences

Language

English

Link

http://prr.hec.gov.pk/jspui/handle/123456789/1776

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676726352646

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Designing RTOS for multiprocessor based system and partitioning the design into hardware and software is the paradigm for the high-end systems evolving to support computation-intensive applications. In this thesis, RTOS is presented that is amalgam of distributed software scheduler and dynamically scalable hardware switch capable of performing all kernel tasks in real time and at wire speed and consequently, minimizing software related scheduling overheads and optimizing resource utilization. Key components of the research output are software framework for mapping high density media applications on multiprocessor based system, its corresponding multilevel scheduler design and design of programmable hardware switch to optimize resource utilization and enhance system performance. In the developed multiprocessor based system, heterogeneous multiprocessors are arranged as Arrays of inter-connected pipelines giving rise to a modified pool-of-pipelines architecture or two dimensional tightly coupled matrix architecture, having scalable, distributed processing and memory capabilities through a plurality of processing elements. The hardware software distributed architecture improves the application optimization, mapped on this multiprocessor based system, by enhancing execution time and minimizing processor idle time, while reducing design complexity and interface problems. RTOS architecture exploits parallelism both in the system application environment and in the distributed computing occurring in the hardware. Based on the type of service, the processes are divided into sub tasks and distributed onto multiple Processors, which are programmed to operate on a set of data, in a certain sequence and in a particular time slot. - 7 -The sequence is maintained by the instruction format of hardware RTOS and the time slot is predicted by the configurations set by the user. Application pipelining framework is presented in the software part of RTOS to exploit parallelism in media application, based on the concept of components or task model, similar to instruction pipelining in the Processor. To meet the constraints and characteristics of the defined framework, two level scheduling policy is adapted. Fixed- Priority Preemptive scheduling algorithm is used at the First-level. For Second-level various scheduling algorithms have been evaluated and analyzed offline and implemented in the software. Heuristic based algorithm is recommended as Second-level algorithm for media application to maintain QoS. The hardware RTOS, called Switch, is implemented as a programmable processor with dedicated program cache. It performs all RTOS kernel tasks in real time and facilitates inter-processor exchange of data, communication or synchronization, deadlock avoidance and exchange of data with external shared memory, thus, enhancing performance and minimizing Processors idle time. The RTOS supports hardware scalability to cater for high to very high density applications and incorporates scalable scheduling and resource management
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70. Al-M’arij/The Ascensions

70. Al-M’arij/The Ascensions

I/We begin by the Blessed Name of Allah

The Immensely Merciful to all, The Infinitely Compassionate to everyone.

70:01
a. A disbelieving questioner mockingly asked The Prophet about the punishment in the realm of the Hereafter which is bound to befall -

70:02
a. – the disbelievers.
b. And no one can prevent the coming of it -
70:03
a. as it is coming from Allah.
b. And, Allah is Rabb - The Lord - The Lord of the Ascensions.

70:04
a. Ascensions to where the angels and the spirit take a day to ascend,
b. where duration of a day would be equivalent to fifty thousand years of your count.

70:05
a. So O The Prophet!
b. Be patient with a gracious patience.

70:06
a. They perceive this punishment to be far away,

70:07
a. while WE see it as quite near at hand as an inevitable reality -

70:08
a. it will befall at the Time when the celestial realm will be like molten copper,

70:09
a. and the mountains will be floating about in the air like flakes of wool/yarn,

70:10
a. and no close friend will ask any other close friend about his fate,
b. for everyone will be preoccupied with his own predicament -

70:11
a. even though they could see one another.
b. The criminal would wish to ransom himself from the inevitable punishment of that Time by
offering his own children,

70:12
a. and even his spouse and his brother/siblings,

70:13
a. and his relatives...

Spatial-Temporal Analysis the Dynamics of Changes on the Foreign Exchange Market: An Empirical Estimates from Ukraine

The foreign exchange market plays an important role in the formation and development of financial markets. This market is of particular importance for emerging economies. To understand market trends (to understand and develop a strategy for its development), it is necessary to analyze historical data. It is also important to use different methods to carry out this analysis. Based on this, the paper analyzes the foreign exchange market in Ukraine for the period 2014-2018. For this analysis, the wavelet coherence methodology is used. This made it possible to assess the development of the foreign exchange market in Ukraine.

Impact of Learning Environment of Cadet Colleges on Personality Development and Life Success of Students in Pakistan

The current study was designed to investigate the impact of learning environment of cadet colleges on personality development and life success of students in Pakistan. Objectives of the study were to explore various aspects of learning environment, assess the impact of learning environment on personality development, analyze various dimensions of life success, determine the influence of learning environment on students‘ life success and examine the mutual impact of learning environment, personality development and life success. This study was descriptive and exploratory in nature therefore triangulation research design of mixed method was considered appropriate for its completion. The population of this study was comprised of worthy principals, teaching faculty, intermediate students and alumni of recognized cadet colleges of Pakistan. Convenient sampling and snowball sampling techniques were used for the present study. The sample of study consisted of 500 respondents which were alumni of twenty four cadet colleges. Moreover, interview was conducted for the principals of twelve cadet colleges and observations were also recorded. Two type of data was required, one in the form of questionnaire from the alumni of cadet colleges about learning environment, personality development and life success keeping in view the objectives of the study. Secondly, semi structured interviews of the worthy principals were conducted. Two observations were also recorded though documentary record and observation sheet at cadet colleges during the interview of the principals. After pilot testing, the researcher personally administered research tools and collected data from the respondents. After data collection, the data was analyzed using SPSS version 21.0. To describe the characteristics of respondents, t-test and One Way ANOVA were run. However, to analyze the subjective data, inferential statistics were used. Correlation and regression analysis were used to infer the respondents‘ questions. Qualitative data was analyzed by using NVivo 12.0 software and major themes were extracted by using data reduction techniques. The results show that learning environment is a contributory factor in grooming and developing the personality domains of the students. It also plays an important role towards incremental improvement in life success of the students. There exists a strong positive correlation between learning environment and personality development as well as between learning environment and life success. Also, there is a mutual impact among learning environment, personality development and life success. Resultantly, cadet colleges bring substantial change in their students by providing effective and conducive learning environment to their students. The same model can be applied to other public sector educational institutions of Pakistan. In nutshell, the authorities and people at helm of affairs in Pakistan should improve the learning environment of their academic institutions in order to gain the objectives of education, for which plausible recommendations have been proffered in this research.