FARGO3D: A new GPU-oriented MHD code

 

Autores
Benítez Llambay, Pablo; Masset, Frédéric S.
Tipo de recurso
artículo
Estado
Versión publicada
Año de publicación
2016
País
Argentina
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio
CONICET Digital (CONICET)
Descripción
We present the FARGO3D code, recently publicly released. It is a magnetohydrodynamics code developed with special emphasis on the physics of protoplanetary disks and planet-disk interactions, and parallelized with MPI. The hydrodynamics algorithms are based on finite-difference upwind, dimensionally split methods. The magnetohydrodynamics algorithms consist of the constrained transport method to preserve the divergence-free property of the magnetic field to machine accuracy, coupled to a method of characteristics for the evaluation of electromotive forces and Lorentz forces. Orbital advection is implemented, and an N-body solver is included to simulate planets or stars interacting with the gas. We present our implementation in detail and present a number of widely known tests for comparison purposes. One strength of FARGO3D is that it can run on either graphical processing units (GPUs) or central processing units (CPUs), achieving large speed-up with respect to CPU cores. We describe our implementation choices, which allow a user with no prior knowledge of GPU programming to develop new routines for CPUs, and have them translated automatically for GPUs.
Idioma
inglés
OAI Identifier
oai:ri.conicet.gov.ar:11336/46941
Enlace del recurso
http://hdl.handle.net/11336/46941
Nivel de acceso
Acceso abierto
Materia
ACCRETION, ACCRETION DISKS
HYDRODYNAMICS
MAGNETOHYDRODYNAMICS (MHD)
METHODS: NUMERICAL
PROTOPLANETARY DISKS
Astronomía
Ciencias Físicas
CIENCIAS NATURALES Y EXACTAS