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As more and more hardware platforms support parallelism, parallel programming is gaining momentum. Applications can only leverage the performance of multi-core processors or graphics processing units if they are able to split a problem into smaller ones that can be solved in parallel. The challenges emerging from the development of parallel applications have led to the development of a great number of tools for debugging, performance analysis and other tasks. The proceedings of the 3rd International Workshop on Parallel Tools for High Performance Computing provide a technical overview in order to help engineers, developers and computer scientists decide which tools are best suited to enhancing their current development processes.
The question of who actually ran cities in the eighteenth, nineteenth, and twentieth centuries has been increasingly debated in recent years. As well as trying to understand the distribution of political power and the rise of broad political participation, urban historians have questioned how and whether elites retained influence in municipal government. The essays in this collection provide a detailed examination of the relationship between urban elites and the exercise of 'power', bringing together economic, social and cultural history with the political history of power resources and decision-making. The volume challenges common perceptions of a monolithic urban elite by looking at specific case studies. Collectively these essays provide a more sophisticated view of the exercise of urban power as the negotiation of various elite groups defined by their economic, social, political or cultural privilege. To contribute to this complex account of the history of cities, elites, and their influence, the collection applies a range of methodological approaches to studying European and American cities, as well as the wider world.
In recent decades, scientific theories have postulated the existence of many universes beyond our own. The details and implications of these theories are hotly contested. Some philosophers argue that these scientific models count against the existence of God. Others, however, argue that if God exists, a multiverse is precisely what we should expect to find. Moreover, these philosophers claim that the idea of a divinely created multiverse can help believers in God respond to certain arguments for atheism. These proposals are, of course, also extremely controversial. This volume collects together twelve newly published essays – two by physicists, and ten by philosophers – that discuss various aspects of this issue. Some of the essays support the idea of a divinely created multiverse; others oppose it. Scientific, philosophical, and theological issues are considered.
This book constitutes the refereed proceedings of the 15th European PVM/MPI Users' Group Meeting held in Dublin, Ireland, in September 2008. The 29 revised full papers presented together with abstracts of 7 invited contributions, 1 tutorial paper and 8 poster papers were carefully reviewed and selected from 55 submissions. The papers are organized in topical sections on applications, collective operations, library internals, message passing for multi-core and mutlithreaded architectures, MPI datatypes, MPI I/O, synchronisation issues in point-to-point and one-sided communications, tools, and verification of message passing programs. The volume is rounded off with 4 contributions to the special ParSim session on current trends in numerical simulation for parallel engineering environments.
From a renowned inspirational speaker comes an motivational guide to understanding your own greatness and potential—and the magnificence of every single human soul This book is about breaking through the barriers that keep us from experiencing our true nature as light. It contains an inspiring combination of science and philosophy, presented in a completely accessible way that makes even the most profound concepts easily understood. Through the extraordinary but true stories of ordinary people having astonishing life experiences, you’ll discover and explore the universal laws and principles that underlie your very existence. Most important, this is a practical manual for understanding wh...