The Design and Implementation of the SWIM Integrated Plasma Simulator

Mechanisms for the convergence of time-parallelized, parareal turbulent plasma simulations

“…It is finally worthwhile mentioning that all BETA simulations performed for this work have been carried out using the event-based, parareal module [13] recently added to the Integrated Plasma Simulator (IPS) framework, currently under development at ORNL by the U.S. fusion community [14,15]. IPS is a framework that allows, among other things, the fast implementation of parareal in an efficient, user-friendly way.…”

“…(14) for the case of the polarization nonlinearity, one should repeat the same procedure as in the previous section but using instead:…”

Temporal parallelization of edge plasma simulations using the parareal algorithm and the SOLPS code

“…The IPS framework written in Python [33,34,35] launches an event-based parareal application using MPI. In the traditional technique, for every parareal iteration k, all processors need to undergo 'mpi-wait' until computations for every time slice is completed for a given k. This significantly increases wall-clock time.…”

“…The application to the SOLPS-Eirene package is unique and promising as it allows the possibility of applications to core-edge coupled codes for efficient simulations of ITER-like plasmas. The parareal implementation was performed using the IPS framework developed at ORNL, USA, as part of the SWIM project [33,34].…”

Event-based parareal: A data-flow based implementation of parareal

“…A summary is presented in Section 5. Both the sequential and event-based parareal algorithms were implemented using a light-weight Python framework, the Integrated Plasma Simulator (IPS) that was developed for multiphysics simulations of magnetically confined fusion plasmas [11][12][13].…”