This book contains extended versions of key papers from the 2nd International Conference on High-Performance Embedded Architectures and Compilers (HiPEAC 2007). It also covers such topics as microarchitecture, code generation, and performance modeling.

Transactions on HiPEAC aims at the timely dissemination of research contributions in computer architecture and compilation methods for high-performance embedded computer systems. Recognizing the convergence of embedded and general-purpose computer systems, this journal publishes original research on systems targeted at specific computing tasks as well as systems with broad application bases. The scope of the journal therefore covers all aspects of computer architecture, code generation and compiler optimization methods of interest to researchers and practitioners designing future embedded systems. This 4th issue contains 21 papers carefully reviewed and selected out of numerous submissions and is divided in four sections. The first section contains five regular papers. The second section consists of the top four papers from the 4th International Conference on High-Performance Embedded Architectures and Compilers, HiPEAC 2009, held in Paphos, Cyprus, in January 2009. The third section contains a set of six papers providing a snap-shot from the Workshop on Software and Hardware Challenges of Manycore Platforms, SHCMP 2008 held in Beijing, China, in June 2008. The fourth section consists of six papers from the 8th IEEE International Symposium on Systems, Architectures, Modeling and Simulation, SAMOS VIII (2008) held in Samos, Greece, in July 2008.

Transactions on HiPEAC aims at the timely dissemination of research contributions in computer architecture and compilation methods for high-performance embedded computer systems. Recognizing the convergence of embedded and general-purpose computer systems, this journal publishes original research on systems targeted at specific computing tasks as well as systems with broad application bases. The scope of the journal therefore covers all aspects of computer architecture, code generation and compiler optimization methods of interest to researchers and practitioners designing future embedded systems. This third issue contains 14 papers carefully reviewed and selected out of numerous submissions and is divided into four sections. The first section contains the top four papers from the Third International Conference on High-Performance Embedded Architectures and Compilers, HiPEAC 2008, held in Göteborg, Sweden, in January 2008. The second section consists of four papers from the 8th MEDEA Workshop held in conjunction with PACT 2007 in Brasov, Romania, in September 2007. The third section contains two regular papers and the fourth section provides a snapshot from the First Workshop on Programmability Issues for Multicore Computers, MULTIPROG, held in conjunction with HiPEAC 2008.

Transactions on HiPEAC is a new journal which aims at the timely dissemination of research contributions in computer architecture and compilation methods for high-performance embedded computer systems. It publishes original research on systems targeted at specific computing tasks as well as systems with broad application bases. Its scope covers all aspects of computer architecture, code generation and compiler optimization methods.

This book constitutes the refereed proceedings of the Fourth International Conference on High Performance Embedded Architectures and Compilers, HiPEAC 2009, held in Paphos, Cyprus, in January 2009. The 27 revised full papers presented together with 2 invited keynote paper were carefully reviewed and selected from 97 submissions. The papers are organized in topical sections on dynamic translation and optimisation, low level scheduling, parallelism and resource control, communication, mapping for CMPs, power, cache issues as well as parallel embedded applications.

This book constitutes the refereed proceedings of the Second International Conference on High Performance Embedded Architectures and Compilers, HiPEAC 2007, held in Ghent, Belgium, in January 2007. The 19 revised full papers presented together with one invited keynote paper were carefully reviewed and selected from 65 submissions. The papers are organized in topical sections.

This book constitutes the refereed proceedings of the 5th International Conference on High Performance Embedded Architectures and Compilers, HiPEAC 2010, held in Pisa, Italy, in January 2010. The 23 revised full papers presented together with the abstracts of 2 invited keynote addresses were carefully reviewed and selected from 94 submissions. The papers are organized in topical sections on architectural support for concurrency; compilation and runtime systems; reconfigurable and customized architectures; multicore efficiency, reliability, and power; memory organization and optimization; and programming and analysis of accelerators.

Building computers that can be used to design embedded real-time systems is the subject of this title. Real-time embedded software requires increasingly higher performances. The authors therefore consider processors that implement advanced mechanisms such as pipelining, out-of-order execution, branch prediction, cache memories, multi-threading, multicorearchitectures, etc. The authors of this book investigate the timepredictability of such schemes.

As Chairmen of HiPEAC 2005, we have the pleasure of welcoming you to the proceedings of the ?rst international conference promoted by the HiPEAC N- work of Excellence. During the last year, HiPEAC has been building its clusters of researchers in computer architecture and advanced compiler techniques for embedded and high-performance computers. Recently, the Summer School has been the seed for a fruitful collaboration of renowned international faculty and young researchers from 23 countries with fresh new ideas. Now, the conference promises to be among the premier forums for discussion and debate on these research topics. Theprestigeofasymposiumismainlydeterminedbythequalityofitstech- cal program. This ?rst programlived up to our high expectations, thanks to the largenumber of strong submissions. The ProgramCommittee received a total of 84 submissions; only 17 were selected for presentation as full-length papers and another one as an invited paper. Each paper was rigorously reviewed by three ProgramCommittee members and at least one external referee. Many reviewers spent a great amount of e?ort to provide detailed feedback. In many cases, such feedback along with constructive shepherding resulted in dramatic improvement in the quality of accepted papers. The names of the Program Committee m- bers and the referees are listed in the proceedings. The net result of this team e?ort is that the symposium proceedings include outstanding contributions by authors from nine countries in three continents. In addition to paper presentations, this ?rst HiPEAC conference featured two keynotes delivered by prominent researchers from industry and academia.

This is volume 72 of Advances in Computers, a series that began back in 1960 and is the oldest continuing series chronicling the ever-changing landscape of information technology. Each year three volumes are produced, which present approximately 20 chapters that describe the latest technology in the use of computers today. In this volume 72, we present the current status in the development of a new generation of high-performance computers. The computer today has become ubiquitous with millions of machines being sold (and discarded) annually. Powerful machines are produced for only a few hundred U.S. dollars, and one of the problems faced by vendors of these machines is that, due to the continuing adherence to Moore's law, where the speed of such machines doubles about every 18 months, we typically have more than enough computer power for our needs for word processing, surfing the web, or playing video games. However, the same cannot be said for applications that require large powerful machines. Applications such as weather and climate prediction, fluid flow for designing new airplanes or automobiles, or nuclear plasma flow require as much computer power as we can provide, and even that is not enough. Today's machines operate at the teraflop level (trillions of floating point operations per second) and this book describes research into the petaflop region (1,015 FLOPS). The six chapters provide an overview of current activities that will provide for the introduction of these machines in the years 2011 through 2015.