activity
20072023
most citedA multiphysics and multiscale software environment for modeling astrophysical systems

201 citations · 726 across the 22 of their papers we have counts for

collaborators

22 papers

stat.ME2023

Sensitivity Analysis of High-Dimensional Models with Correlated Inputs

Juraj Kardos, Wouter Edeling, Diana Suleimenova +2

Sensitivity analysis is an important tool used in many domains of computational science to either gain insight into the mathematical model and interaction of its parameters or stud…

cs.DC2016

Multiscale Computing in the Exascale Era

Saad Alowayyed, Derek Groen, Peter V. Coveney +1

We expect that multiscale simulations will be one of the main high performance computing workloads in the exascale era. We propose multiscale computing patterns as a generic vehicl…

cs.DC2015★ 40 cited

FabSim: facilitating computational research through automation on large-scale and distributed e-infrastructures

Derek Groen, Agastya Bhati, James Suter +3

We present FabSim, a toolkit developed to simplify a range of computational tasks for researchers in diverse disciplines. FabSim is flexible, adaptable, and allows users to perform…

astro-ph.IM2015

From Thread to Transcontinental Computer: Disturbing Lessons in Distributed Supercomputing

Derek Groen, Simon Portegies Zwart

We describe the political and technical complications encountered during the astronomical CosmoGrid project. CosmoGrid is a numerical study on the formation of large scale structur…

cs.DC2015★ 14 cited

An automated multiscale ensemble simulation approach for vascular blood flow

Mohamed A. Itani, Ulf D. Schiller, Sebastian Schmieschek +6

Cerebrovascular diseases such as brain aneurysms are a primary cause of adult disability. The flow dynamics in brain arteries, both during periods of rest and increased activity, a…

cs.DC2014

Weighted decomposition in high-performance lattice-Boltzmann simulations: are some lattice sites more equal than others?

Derek Groen, David Abou Chacra, Rupert W. Nash +3

Obtaining a good load balance is a significant challenge in scaling up lattice-Boltzmann simulations of realistic sparse problems to the exascale. Here we analyze the effect of wei…