Uppsala University
Reference, Opteron, Linux, Cluster
Ingela Nyström, Director of UPPMAX
The Uppsala Multidisciplinary Center for Advanced Computational Science (UPPMAX) is a centre for high-performance computing (HPC) founded in 2003 and hosted by Uppsala University. UPPMAX is one of the six centers in the national metacenter Swedish National Infrastructure for Computing (SNIC).
UPPMAX provides an environment of high-performance computers and know-how to the community of experts in the fields of applied computational sciences (e.g., Computational Physics, Computational Chemistry, Computational Geophysics, and Bioinformatics), and algorithm development/computer science (Scientific Computing, Visualization and Computer Architecture). Also, the center hosts a collaborative effort on HPC education and an important role is to pave the way for researchers in scienctific fields with little or no HPC tradition.
One of UPPMAX main systems is a cluster named Isis delivered by Gridcore AB in Spring 2007. Isis consists of 200 IBM x3455 compute nodes, each with dual AMD Opteron, dual core, 2220 CPUs, and a total of 1600 GB RAM. The theoretical peak performance is more than 4 Tflop/s.
Isis is funded by grants from SNIC and from Vetenskapsrådet to Professor Börje Johansson, Dept. of Physics and Materials Science, Uppsala University. Our users are conducting research in areas varying from theoretical magnetism to linguistics via molecular dynamics.
"The picture shows a 5 solar mass star in the late stage of its evolution. The star has expanded to 1700 solar radii. The energy produced in the stellar core by nuclear fusion processes is transported to the surface via radiation and convection. Convective motions close to the surface cause the inhomogeneities. The star is modeled as a whole on 171^3 cartesian grid, taking into account the processes of energy generation and transport, ionization and highly turbulent convective motions. More details about these simulations can be found at http://www.astro.uu.se/~bf/movie/dst35gm04n26/movie.html. Authors: B. Freytag (Lyon University, Uppsala University), O. Kochukhov (Uppsala University), N. Piskunov (Uppsala University)."
