220 citations · 1.3k across the 46 of their papers we have counts for
46 papers
Dimming the Lights: 2D Simulations of Deflagrations of Hybrid C/O/Ne White Dwarfs using FLASH
Catherine Feldman, Nathanael Gutierrez, Ellis Eisenberg +3
The dimmest and most numerous outlier of the Type Ia supernova population, Type Iax events, is increasingly being found in the results of observational campaigns. There is currentl…
On Using Linux Kernel Huge Pages with FLASH, an Astrophysical Simulation Code
Alan C. Calder, Catherine Feldman, Eva Siegmann +4
We present efforts at improving the performance of FLASH, a multi-scale, multi-physics simulation code principally for astrophysical applications, by using huge pages on Ookami, an…
Performance of an Astrophysical Radiation Hydrodynamics Code under Scalable Vector Extension Optimization
Dennis C. Smolarski, F. Douglas Swesty, Alan C. Calder
We present results of a performance study of an astrophysical radiation hydrodynamics code, V2D, on the Arm-based A64FX processor developed by Fujitsu. The code solves sparse linea…
Ookami: Deployment and Initial Experiences
Andrew Burford, Alan C. Calder, David Carlson +15
Ookami is a computer technology testbed supported by the United States National Science Foundation. It provides researchers with access to the A64FX processor developed by Fujitsu…
Type Ia Supernova Explosions from Hybrid Carbon-Oxygen-Neon White Dwarf Progenitors That Have Mixed During Cooling
Carlyn N. Augustine, Donald E. Willcox, Jared Brooks +2
The creation of "hybrid" white dwarfs, made of a C-O core within a O-Ne shell has been proposed, and studies indicate that ignition in the C-rich central region makes these viable…
Modeling subgrid combustion processes in simulations of thermonuclear supernovae
Dean M. Townsley, Alan C. Calder, Broxton J. Miles
Supernovae of type Ia are thought to arise from the thermonuclear incineration of a carbon-oxygen white dwarf stellar remnant. However, the detailed explosion scenario and stellar…