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Video: Algorithmic Adaptations to Extreme Scale

David Keyes, KAUST

“Algorithmic adaptations are required to use anticipated exascale hardware near its potential, since the code base has been engineered to squeeze out flops. Instead, algorithms must now squeeze out synchronizations, memory, and transfers, while extra flops on locally cacheable data represent small costs in time and energy.”

Video: From Megaflop to Petaflop and Beyond

Arden L. Bement

“Over the three decades supercomputer throughput rates have increased dramatically from 100s of MFLOPs in 1985 to tens of PFLOPS today, making U.S. universities pre-eminent in the world in computational S&E, which is a tribute to both NSF and Centers’ dedication and leadership. Looking ahead to the impacts of synaptic computing, high-performance computing coupled with data analysis, and cloud computing coupled with the Internet of Things (IOT), the challenges and opportunities in computational S&E in all sectors of U.S. Society is projected to advance dramatically.”

Video: Towards Exascale Simulation of Turbulent Combustion

Jacqueline Chen, Sandia

“Exascale computing will enable combustion simulations in parameter regimes relevant to next-generation combustors burning alternative fuels. The first principles direct numerical simulations (DNS) are needed to provide the underlying science base required to develop vastly more accurate predictive combustion models used ultimately to design fuel efficient, clean burning vehicles, planes, and power plants for electricity generation.”

Video: Towards Inevitable Convergence of HPC and Big Data

Dr. Satoshi Matsuoka, University of Tokyo

Satoshi Matsuoka from the Tokyo Institute of Technology discusses Big Data at the NCSA Blue Waters Symposium. “The trend towards convergence is not only strategic however but rather inevitable as the Moore’s law ends such that sustained growth in data capabilities, not compute, will advance the capacity and thus the overall capacities towards accelerating research and ultimately the industry.”

Petascale Research in Earthquake Science on Blue Waters


“SCEC’s multi-disciplinary research team is using NCSA Blue Waters to develop physics-based computational models of earthquake processes. During the past year, we integrated more realistic physics into our computational software to model frequency dependent attenuation, small-scale heterogeneities, free-surface topography, and non-linear yielding effects, all of which become increasingly important when simulating high frequency ground motions.”

Video: First Galaxies and Quasars in the BlueTides Simulation

Figure 1 from The BlueTides Simulation paper; reproduced with permission; 
z = 8 refers to a redshift of 8 when the universe was a little over 1/2 billion years old.

“BlueTides has successfully used essentially the entire set of XE6 nodes on the Blue Waters. It follows the evolution of 0.7 trillion particles in a large volume of the universe (600 co-moving Mpc on a side) over the first billion years of the universe’s evolution with a dynamic range of 6 (12) orders of magnitude in space (mass). This makes BlueTides by far the largest cosmological hydrodynamic simulation ever run.”

Video Preview of the ISC 2015 Student Cluster Competition

(Left to Righ) Chenhui Quan, Konstantinos Mouzakitis, Emmanouil Farsarakis (Manos) and Georgios Iniatis.

In this video, Dan Olds from Gabriel Consulting and Brian Sparks from the HPC Advisory Council discuss the competitors in the upcoming ISC 2015 Student Cluster Competition. Located on the exhibit floor at ISC 2015, the competition kicks off July 13 in Frankfurt.

Video: Parallel Algorithms Reconsidered


“Parallel algorithms have been a subject of intensive algorithmic research in the 1980s. This research almost died out in the mid 1990s. In this paper we argue that it is high time to reconsider this subject since a lot of things have changed. First and foremost, parallel processing has moved from a niche application to something mandatory for any performance critical computer applications. We will also point out that even very fundamental results can still be obtained. We give examples and also formulate some open problems.”

Simulating Geomagnetic Storm Effects on Power Grids


“Using Blue Waters, we are for the first time running highly detailed, global simulations of the Earth-ionosphere waveguide under the effect of a geomagnetic storm. Disturbed ionospheric currents are modeled in a three-dimensional Maxwell’s equations finite-difference time-domain (FDTD) model extending from -400 km to an altitude of 400 km.”

Video: David Keyes on the PASC15 Platform for Advanced Scientific Computing

David Keyes, KAUST

In this video, Torsten Hoefler from ETH Zurich interviews David Keyes from King Abdullah University of Science and Technology about the PASC15 Platform for Advanced Scientific Computing Conference. Keyes discusses his favorite sessions from the event as well as future computational trends.