DescriptionWhat can computer simulations show us about the creation of our universe? This lecture will describe the steps towards the creation of self-consistent computer simulations of the evolution of the universe, from soon after the Big Bang to the formation of realistic stellar systems like the Milky Way. Creating simulations of this complexity is a multi-scale problem of vast proportions. The first step has been the Millennium Simulation, one of the largest and most successful numerical simulations of the Universe ever carried out. Now we are in the midst of the next step, where this is carried to a much higher level of physical fidelity on the latest supercomputing platforms. Overall, this will illustrate how the role of mathematics is essential in this endeavor, using demonstrations of computer simulations produced in collaboration with Volker Springel. The talk will be preceded by a brief history of the role of supercomputers in enhancing progress in mathematics. Moving through the exciting history of supercomputing, we will touch upon the top supercomputers of its time and its important applications. This will be followed by a stimulating story about a supercomputer simulation that has proven the validity of a theory that was proposed 40 years ago: simulating the evolution of the universe.
Christian Klingenberg is a professor of mathematics working at Wuerzburg University in Germany. He obtained his PhD at the Courant Institute in New York on a topic in fluid mechanics. Already then his lifelong interest in interdisciplinary work with physics began. During his career his focus has turned to working with astrophysicists by developing numerical methods in close cooperation with them. His latest cooperation is with the renown astrophysicist Volker Springel from Heidelberg University. http://www.mathematik.uni-wuerzburg.de/~klingen/Welcome.html
Dr. Samar Aseeri is a Computational Scientist at KAUST Supercomputing Lab. Before joining KAUST in 2010, she received her training on supercomputing at IBM in New York. She obtained both her Masters and PhD in Applied Mathematics from Umm Al-Qura University in 2005 and 2009 respectively. Her current research interests focus on Fast Fourier Transform library benchmarks. Along with providing support to Shaheen users at KAUST, she is also involved with various research projects with the Extreme Computing Research Center.
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