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This book introduces new compilation techniques, using the polyhedron model for the resource-adaptive parallel execution of loop programs on massively parallel processor arrays. The authors show how to compute optimal symbolic assignments and parallel schedules of loop iterations at compile time, for cases where the number of available cores becomes known only at runtime. The compile/runtime symbolic parallelization approach the authors describe reduces significantly the runtime overhead, compared to dynamic or just‐in-time compilation. The new, on‐demand fault‐tolerant loop processing approach described in this book protects loop nests for parallel execution against soft errors.

Anecdotes about Texas history.

By and large, the histories of East and West Germany have been studied in relative isolation. And yet, for all their differences, the historical trajectories of both nations were interrelated in complex ways, shaped by economic crises, social and cultural changes, protest movements, and other phenomena so diffuse that they could hardly be contained by the Iron Curtain. Accordingly, A History Shared and Divided offers a collective portrait of the two Germanies that is both broad and deep. It brings together comprehensive thematic surveys by specialists in social history, media, education, the environment, and similar topics to assemble a monumental account of both nations from the crises of the 1970s to—and beyond—the reunification era.

The marvel of plant function; The water milieu; Energy relations and diffusion; Reactive surfaces; Osmosis and the components of water potential; Transpiration and heat transfer; The ascent of sap; Transport across membranes; The translocacion of solutes; Mineral nutrition of plants; Ensymes, proteins, and amino acids; Carbohydrates and related compounds; Photosynthesis; Carbon dioxide fixation and photosynthesis in nature; Respiration; Metabolism and functions of nitrogen and sulfur; Nucleic acids, proteins, and the genetic code; Functions and metabolism of plant lipids and aromatic compounds; Growth and the problems morphogenesis; Mechanisms and problems of developmental control; Plant hormones and growth regulators; Differentiation; Photomorphogenesis; The biological clock; Responses to low temperature and related phenomena; Photoperiodism and the physiology of flowering; Reproduction, maturation, and senescence; Plant physiology in agriculture; Physiological ecology.

This book presents the finds and features of a Pharaonic caravan route, only discovered in 1999, which leads from the Dakhla Oasis in Egypt deep into the Libyan Desert, and therefore brings this area into the focus of Egyptological research for the first time. Based on archaeological investigations carried out within the scope of the Collaborative Research Centre 389 ACACIA at Cologne, the finds and features are thoroughly analyzed (part I of the thesis), followed by studies on the practical use of the trail (part II), and on the possible purpose and historical significance of the caravan route (part III). As the main result it turned out that the so-called Abu Ballas Trail was an extremely difficult Pharaonic caravan route through the Libyan Desert that was used over many centuries, and repeatedly took a greater significance under very specific geopolitical circumstances. It appears to have served, at least temporarily from the late third millennium BC onwards, as a trade route in order to import luxury items (such as incense, ivory, skins of exotic animals, valuable oils, and others) from sub-Saharan regions first to Dakhla and then further on to the Egyptian Nile Valley, probably in cooperation with "Libyan" nomadic groups. The route therefore represents the earliest evidence of trans-Saharan trade currently known. Its existence proves that the known world of the ancient Egyptians did not end beyond the oases of the Western Desert.