Jet: Fast quantum circuit simulations with parallel task-based tensor-network contraction

T Vincent, LJ O'Riordan, M Andrenkov, J Brown… - Quantum, 2022 - quantum-journal.org
We introduce a new open-source software library $ Jet $, which uses task-based parallelism
to obtain speed-ups in classical tensor-network simulations of quantum circuits. These …

Betelgeuse: a review

JC Wheeler, E Chatzopoulos - Astronomy & Geophysics, 2023 - academic.oup.com
Was Betelgeuse once in a binary star system? What causes it to vary over a vast range of
timescales? Why did it dim dramatically in 2020? When and how will it explode? J. Craig …

Hydrodynamic simulations of white dwarf–white dwarf mergers and the origin of R Coronae Borealis stars

S Shiber, O De Marco, PM Motl… - Monthly Notices of …, 2024 - academic.oup.com
We study the properties of double white dwarf (DWD) mergers by performing hydrodynamic
simulations using the new and improved adaptive mesh refinement code octo-tiger. We …

Betelgeuse as a Merger of a Massive Star with a Companion

S Shiber, E Chatzopoulos, B Munson… - The Astrophysical …, 2024 - iopscience.iop.org
We investigate the merger between a 16M⊙ star, on its way to becoming a red supergiant
(RSG), and a 4M⊙ main-sequence companion. Our study employs three-dimensional …

Beyond fork-join: Integration of performance portable Kokkos kernels with HPX

G Daiß, M Simberg, A Reverdell… - 2021 IEEE …, 2021 - ieeexplore.ieee.org
Between a widening range of GPU vendors and the trend of having more GPUs per compute
node in supercomputers such as Summit, Perlmutter, Frontier and Aurora, developing …

Stellar mergers with HPX-Kokkos and SYCL: methods of using an asynchronous many-task runtime system with SYCL

G Daiß, P Diehl, H Kaiser, D Pflüger - Proceedings of the 2023 …, 2023 - dl.acm.org
Ranging from NVIDIA GPUs to AMD GPUs and Intel GPUs: Given the heterogeneity of
available accelerator cards within current supercomputers, portability is a key aspect for …

From task-based gpu work aggregation to stellar mergers: Turning fine-grained cpu tasks into portable gpu kernels

G Daiß, P Diehl, D Marcello… - 2022 IEEE/ACM …, 2022 - ieeexplore.ieee.org
Meeting both scalability and performance portability requirements is a challenge for any
HPC application, especially for adaptively refined ones. In Octo-Tiger, an astrophysics …

Quantifying Overheads in Charm++ and HPX Using Task Bench

N Wu, I Gonidelis, S Liu, Z Fink, N Gupta… - … Conference on Parallel …, 2022 - Springer
Abstract Asynchronous Many-Task (AMT) runtime systems take advantage of multi-core
architectures with light-weight threads, asynchronous executions, and smart scheduling. In …

[PDF][PDF] Methodological Characterization and Computational Codes in the Simulation of Interacting Galaxies

E Teófilo-Salvador, P Ambrocio-Cruz… - Artificial Intelligence …, 2024 - scholar.archive.org
Currently, technological development has exponentially fostered a growing collection of
dispersed and diversified information. In the case of galaxy interaction studies, it is important …

Simulating stellar merger using HPX/Kokkos on A64FX on Supercomputer Fugaku

P Diehl, G Daiß, K Huck, D Marcello, S Shiber… - The Journal of …, 2024 - Springer
The increasing availability of machines relying on non-GPU architectures, such as ARM
A64FX in high-performance computing, provides a set of interesting challenges to …