After the introduction of CUDA by Nvidia, the GPUs became devices capable of accelerating any general purpose computation. GPUs are designed as parallel processors which posses huge computation power. Modern supercomputers are often equipped with GPU accelerators. Sometimes the performance or the memory capacity of a single GPU is not enough for a scientific application. The application needs to be scaled into multiple GPUs. During the computation there is need for the GPUs to exchange partial results. This communication represents computation overhead. For this reason it is important to research the methods of the effective communication between GPUs. This means less CPU involvement, lower latency, shared system buffers. Inter-node and intra-node communication is examined. The main focus is on GPUDirect technologies from Nvidia and CUDA-Aware MPI. Subsequently k-Wave toolbox for simulating the propagation of acoustic waves is introduced. This application is accelerated by using CUDA-Aware MPI.

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Uppsatsen behandlar i vilken utsträckning som de fem olika varianterna av det ontologiska gudsbeviset presenterade av Anselm, Descartes, Malcolm, Plantinga respektive Gödel är rimliga.

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No description available.

This dissertation examines the theology of C.S. Lewis in light of the writings of Athanasius, Augustine, and Anselm. Specifically, it looks at the role that justice and mercy play in each of these theologian’s understanding of the atonement. It proceeds on the basis that Lewis does in fact have a specific, robust, and coherent understanding of the atonement, and that his theological anthropology and his understanding of sanctification are an outworking of his understanding of the atonement. Chapter 1 lays out Lewis’ theological orientation and his method. Chapter 2 engages with Athanasius, Augustine, and Anselm on the atonement, and it lays out the particular concepts that were crucial in their understanding of the atonement, namely the justice and mercy of God. It outlines the fundamental concepts that we find in seedling form in Athanasius and Augustine and that were brought to full fruition in Anselm. It also argues that Anselm’s satisfaction theory is best understood as grounded in the nature of God, rather than in Anselm’s feudal, Medieval context. Chapter 3 examines Lewis on the atonement, and it traces the concepts that Lewis uses to describe and explain Christ’s death and resurrection. While Lewis does not adhere to any one doctrine or understanding of the atonement, there is a common thread that unites the various pictures that he takes to be true representations of the atonement. Fundamentally, for Lewis, the atonement is about the restitution of proper order that was disrupted in the Fall. Chapter 3 examines which theories of the atonement Lewis accepts and which he rejects. It also traces his understanding of the atonement to his understanding of the nature of God, relying on the concept of justitia defined as proper order, which has its source in the nature of God himself. In so doing, it aims to show that Lewis’ later understanding of the atonement is fundamentally Anselmian. Chapter 4 engages with Lewis’ theological anthropology and his understanding of sanctification, focusing on the process of “good infection” and how Lewis envisions the spread of the new life made available after Christ’s act of atonement. Sanctification, for Lewis, like the atonement, is also fundamentally about proper order. This plays out in his theological anthropology largely in terms of humility and obedience to God. Finally, chapter 5 addresses Narnia specifically and traces the concepts of justitia and proper order throughout the series and aims to show that, by focusing on proper order, we can see how the series hangs together as a whole theologically as an outworking of Lewis’ understanding of the atonement. / Thesis / Doctor of Philosophy (PhD)

Universiẗat, Diss., 2006--Erlangen-Nürnberg.

Made available in DSpace on 2016-03-15T19:48:08Z (GMT). No. of bitstreams: 1 Emmanuel Roberto Leal de Athayde.pdf: 643030 bytes, checksum: d17be0834930d49238a96a4bfea69da6 (MD5) Previous issue date: 2011-02-15 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Anselm of Canterbury is a figure of the Middle Ages, considered the father of scholastic theology. As archbishop of Canterbury, he gained notoriety from his, later denominated, ontological argument, which presented, by use of philosophical concepts, a unique argument, capable of demonstrating the existence of God. This unique argument is found in the Proslogion, a book that addresses the existence of a being than which nothing greater can be conceived , considered a simplification of the Monologion, his previous work. By reading Anselm, his intension of addressing faith and reason is explicit, as, by working with a rational argument, he sought to explain something in which he previously believed. There is some research on Anselm and his argument, however, the main focus of these works lay on his philisofical reasoning, without exploring their theological matters. From this observation, the present research seeks to demonstrate the exposition of theological ideias in the Proslogion, expounding them under the comment of contemporary dogmatic theology. Also, consideration on the medieval context, the cultural, social, scholastic, theological and philosofical backgrounds and others, help comprehend the anselmian thought. / Anselmo de Cantuária é um personagem da Idade Média, considerado o pai da escolástica. Arcebispo da Catedral de Cantuária, que ficou conhecido basicamente pelo seu argumento denominado posteriormente de ontológico, que visava apresentar, valendo-se de conceitos filosóficos, um argumento único capaz de demonstrar a existência de Deus. Esse argumento único encontra-se no Proslogion, uma obra que trata da existência de um ser do qual é possível pensar nada maior , considerada uma simplificação do Monologion, seu escrito anterior. Ao ler Anselmo, observa-se explicitamente sua intenção de tratar da fé e da razão, pois, valendo-se de um argumento racional, buscou explicar aquilo que previamente já cria. Há algumas pesquisas sobre Anselmo e seu argumento, contudo, observou-se que seus pressupostos filosóficos são comumente ressaltados, sem, contudo, explorar as questões teológicas. Partindo dessa constatação, esta pesquisa objetivou demonstrar que o autor medieval expõe algumas ideias teológicas que estão presentes no Proslogion, e sob essa perspectiva deu-se a pesquisa, explicitando suas questões teológicas em sua obra específica, sob comentários da teologia dogmática protestante contemporânea. Além disso, refletir sobre o seu ambiente medieval, no que diz respeito à cultura, sociedade, contexto eclesiástico, pressupostos teológicos e filosóficos, enfim, entre outras questões, ajudam a compreender melhor o pensamento anselmiano.

After the introduction of CUDA by Nvidia, the GPUs became devices capable of accelerating any general purpose computation. GPUs are designed as parallel processors which posses huge computation power. Modern supercomputers are often equipped with GPU accelerators. Sometimes single GPU performance is not enough for a scientific application and it needs to scale over multiple GPUs. During the computation, there is a need for the GPUs to exchange partial results. This communication represents computation overhead and it is important to research methods of the effective communication between GPUs. This means less CPU involvement, lower latency and shared system buffers. This thesis is focused on inter-node and intra-node GPU-to-GPU communication using GPUDirect technologies from Nvidia and CUDA-Aware MPI. Subsequently, k-Wave toolbox for simulating the propagation of acoustic waves is introduced. This application is accelerated by using CUDA-Aware MPI. Peer-to-peer transfer support is also integrated to k-Wave using CUDA Inter-process Communication.