Supermassive black holes have a speed limit that governs how fast and how large they can grow,” said Joseph Smidt of the Theoretical Design Division at LANL. Using computer codes developed at Los Alamos for modeling the interaction of matter and radiation related to the Lab’s stockpile stewardship mission, Smidt and colleagues created a simulation of collapsing stars that resulted in supermassive black holes forming in less time than expected, cosmologically speaking, in the first billion years of the universe.
Still unobserved, Planet 9 is within the gravitational influence of our sun, completing one revolution in approximately 20,000 years. That means its orbital clock runs so slowly that it has not been around the sun since our last ice age. “The work could not have been completed without the heavy lifting provide by supercomputers at California Institute of Technology (Caltech). There, Batygin employed the Fram supercomputer at CITerra for four months to simulate four billion years of solar system evolution. Fram consists of almost 4,000 cores, running on the NSF-funded Rocks software environment, with 512TB of Lustre file storage.”
How old is Saturn? Researchers are using Sandia’s Z machine to find out.
In this video from the NERSC Nobel Lecture Series: Saul Perlmutter from Lawrence Berkeley National Lab presents “Data, Computation and the Fate of the Universe.” Perlmuitter won the 2011 Nobel Prize in Physics. As part of our feature, we’ve included an insideHPC interview with Saul Perlmutter from SC13.
In this video from the Exascale Computing in Astrophysics Conference in Switzerland, Jack Dongarra from the University of Tennessee presents: Algorithmic and Software Challenges For Numerical Libraries at Exascale.
In this special feature, John Kirkley sits down with Dr. Saul Perlmutter. A Nobel prize winning astrophysicist, Dr. Perlmutter’s talk at SC13 focused on how integrating big data — and careful analysis — led to the discovery of the acceleration of the universe’s expansion.