A bibliography on parallel and vector numerical algorithms

This is a bibliography of numerical methods. It also includes a number of other references on machine architecture, programming language, and other topics of interest to scientific computing. Certain conference proceedings and anthologies which have been published in book form are listed also

Solution of partial differential equations on vector and parallel computers

The present status of numerical methods for partial differential equations on vector and parallel computers was reviewed. The relevant aspects of these computers are discussed and a brief review of their development is included, with particular attention paid to those characteristics that influence algorithm selection. Both direct and iterative methods are given for elliptic equations as well as explicit and implicit methods for initial boundary value problems. The intent is to point out attractive methods as well as areas where this class of computer architecture cannot be fully utilized because of either hardware restrictions or the lack of adequate algorithms. Application areas utilizing these computers are briefly discussed

Thermomechanical and metallurgical modelling of laser hardening and laser cladding processes

[Abstract] The development of high stresses and distortions is one of the main concerns in laser surface heat treatments. The objective of the present thesis is to contribute to the better understanding of the thermomechanical behavior during laser transformation hardening and laser metal deposition techniques, including as well the development of a exible tool with customizable models for the numerical calculation of the thermomechanical variables, and the microstructural evolution through phase transformation models. Such a tool will be useful for the prediction of the residual strains and stresses after the processes as well as the phase changes, helping with its optimization and understanding, thus reducing the number of test trials necessary to achieve the desired results. Something that has paramount importance when unique or expensive workpieces should be treated. The model was validated using several experimental techniques to assess its predictions and ne tune some of its parameters.[Resumo] A xeración de altas tensións e deformacións é unha das maiores preocupacións dos tratamentos térmicos super ciais por láser. O obxectivo da presente tesis é o de contribuir ao mellor entendemento do comportamento termomecánico durante o endurecemento super cial por láser e as técnicas de deposición de metal por láser, incluindo tamén o desenvolvemento dunha ferramenta exible con modelos adaptables para o cálculo numérico das variables termomecánicas, así como da evolución microestrutural mediante modelos de transformación de fase. Tal ferramenta será de utilidade na predicción dos esforzos e deformacións residuais despois do tratamento, axudando coa sua optimización e mellorando o seu entendemento, e por tanto diminuindo o número de ensaios necesarios para obter os resultados desexados. Algo de meirande importancia cando pezas únicas ou de gran custo deben ser tratadas. O modelo foi validado mediante o uso de varias técnicas experimentais para comparar o grao de axeitamento das súas prediccións e axustar algúns dos seus parámetros

Software for Exascale Computing - SPPEXA 2016-2019

This open access book summarizes the research done and results obtained in the second funding phase of the Priority Program 1648 "Software for Exascale Computing" (SPPEXA) of the German Research Foundation (DFG) presented at the SPPEXA Symposium in Dresden during October 21-23, 2019. In that respect, it both represents a continuation of Vol. 113 in Springer’s series Lecture Notes in Computational Science and Engineering, the corresponding report of SPPEXA’s first funding phase, and provides an overview of SPPEXA’s contributions towards exascale computing in today's sumpercomputer technology. The individual chapters address one or more of the research directions (1) computational algorithms, (2) system software, (3) application software, (4) data management and exploration, (5) programming, and (6) software tools. The book has an interdisciplinary appeal: scholars from computational sub-fields in computer science, mathematics, physics, or engineering will find it of particular interest