ABSTRACT octo-tiger is an astrophysics code to simulate the evolution of self-gravitating
and rotating systems of arbitrary geometry based on the fast multipole method, using …

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 …

We study the process of runaway, unstable Roche lobe overflow in coalescing binary
systems and its dependence on the properties of the binary involved. We create three …

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 …

Meeting both scalability and performance portability requirements is a challenge for any
HPC application, especially for adaptively refined ones. In Octo-Tiger, an astrophysics …

Studying compact-star binaries and their mergers is integral to determining progenitors for
observable transients. Today, compact-star mergers are typically studied via state-of-the-art …

This textbook focuses on practical parallel C++ programming at the graduate student level.
In particular, it shows the APIs and related language features in the C++ 17 and C++ 20 …

Cloud computing for high performance computing resources is an emerging topic. This
service is of interest to researchers who care about reproducible computing, for software …

In recent years, computers based on the RISC-V architecture have raised broad interest in
the high-performance computing (HPC) community. As the RISC-V community develops the …

We describe the C++ standard library for concurrency and parallelism (HPX). In contrast to
bulk sequential programs written in the past, HPX relies on asynchronous programming …