Quality-driven SoC architecture synthesis for embedded applications.

The recent spectacular progress in modern nanoelectronics created a big stimulus towards development of SoCs for embedded applications. Unfortunately, it also introduced unusual silicon and system complexity and heterogeneity, which result in many serious SoC development issues. Additional difficult to solve issues are due to very high throughput and low energy demands of many modern embedded applications. These issues cannot be resolved without new more adequate system architecture concepts, as well as, methods and EDA-tools for an adequate system-level design exploration and multi-objective optimal system architecture synthesis. This tutorial discusses the problems of multi-objective optimal architecture synthesis and trade-off exploitation for complex hard real-time embedded heterogeneous multi-processor SoCs, and model-based semi-automatic architecture synthesis methods that enable its effective and efficient solution. It thoroughly discusses the abstract models of the architecture design issue that involve the abstract system behavior models, system platform models and multi-objective decision models, as well as, the construction of the models and their usage for the actual system architecture exploration and multi-objective optimal architecture synthesis. In the role of examples, it uses the system architecture exploration and synthesis methods and the corresponding EDA-tools that we recently developed, and the SoC architectures synthesised with our tools for several real-world designs related to the newest highly demanding wireless communication and multimedia standards

The Significance of Religion on Health Factors Related to Aging Among American Adults Using the National Survey of Midlife Development in the United States

There is a substantial body of evidence that demonstrates an association between religiosity and health outcomes in adults of all ages. Many studies have demonstrated that factors such as religious importance and service attendance may provide social vehicles for factors such as increased access to health care, better management of chronic diseases, and increased availability to preventive health services and education. These religious factors may also influence the way in which a person perceives and copes with his or her health issues. Successful aging theory is a combination of three factors or characteristics: low risk of disease and disease-related disability, high mental and physical function, and active engagement with life. This theory allows for a more holistic approach to aging and health. The overall goal of this observational study using quantitative data from the 1994/95 National Survey of Midlife Development in the United States (MIDUS) was to analyze whether any statistically significant relationships exist between religiosity defined as religious devotion, importance, influence, and service attendance and the three factors of successful aging. The results demonstrated significant relationships between all religiosity variables and active engagement in life. Other statistically significant findings were discovered with the factors: self physical and mental health rating, times in the hospital, routine visits to the doctor, and certain religiosity variables. Many of the findings still existed when analyzed across demographic co-variants. Finally, the use of a theoretical model and logistic regression demonstrated that active engagement in life may be a bridge variable between successful aging health outcomes and service attendance. The results don't show more religion means healthier, but that religion can play an intricate role in an individual's own health. The public health relevance of the study is to make public health professionals aware of the relationships that exist between religiosity and successful aging health outcomes. Religious venues may provide a good resource for preventive health services and education. Most importantly, a person's religious beliefs may affect the way a person deals with physical or mental illness. Public health professionals should embrace the religious beliefs of patients regardless of their own beliefs

Design of hardware accelerators for demanding applications.

This paper focuses on mastering the architecture development of hardware accelerators. It presents the results of our analysis of the main issues that have to be addressed when designing accelerators for modern demanding applications, when using as an example the accelerator design for LDPC decoding for the newest demanding communication system standards. Based on the results of our analysis, we formulate the main requirements that have to be satisfied by an adequate accelerator design methodology, and propose a design approach which satisfies these requirements

CABAC accelerator architectures for video compression in future multimedida : a survey

The demands for high quality, real-time performance and multi-format video support in consumer multimedia products are ever increasing. In particular, the future multimedia systems require efficient video coding algorithms and corresponding adaptive high-performance computational platforms. The H.264/AVC video coding algorithms provide high enough compression efficiency to be utilized in these systems, and multimedia processors are able to provide the required adaptability, but the algorithms complexity demands for more efficient computing platforms. Heterogeneous (re-)configurable systems composed of multimedia processors and hardware accelerators constitute the main part of such platforms. In this paper, we survey the hardware accelerator architectures for Context-based Adaptive Binary Arithmetic Coding (CABAC) of Main and High profiles of H.264/AVC. The purpose of the survey is to deliver a critical insight in the proposed solutions, and this way facilitate further research on accelerator architectures, architecture development methods and supporting EDA tools. The architectures are analyzed, classified and compared based on the core hardware acceleration concepts, algorithmic characteristics, video resolution support and performance parameters, and some promising design directions are discussed. The comparative analysis shows that the parallel pipeline accelerator architecture seems to be the most promising

Survey of advanced CABAC accelarator architectures for future multimedia.

The future high quality multimedia systems require efficient video coding algorithms and corresponding adaptive high-performance computational platforms. In this paper, we survey the hardware accelerator architectures for Context-based Adaptive Binary Arithmetic Coding (CABAC) of H.264/AVC. The purpose of the survey is to deliver a critical insight in the proposed solutions, and this way facilitate further research on accelerator architectures, architecture development methods and supporting EDA tools. The architectures are analyzed, classified and compared based on the core hardware acceleration concepts, algorithmic characteristics, video resolution support and performance parameters, and some promising design directions are discussed

Technology library modeling for information-driven circuit synthesis

Due to weaknesses in circuit synthesis methods used in todaypsilas CAD tools, the opportunities created by modern microelectronic technology cannot effectively be exploited. This paper considers major issues and requirements of circuit synthesis for the nano CMOS technologies, and discusses our new information-driven circuit synthesis technology that satisfies these requirements. It focuses on an adequate technology library modelling for information-driven circuit synthesis. The new circuit synthesis technology considerably differs from all other known synthesis methods and overcomes their main weaknesses. The experimental results demonstrate that it is able to produce very fast, compact and low-power circuits