P07: PORTAGE - A Flexible Conservative Remapping
Framework for Modern HPC Architectures
SessionPoster Reception
Authors
Event Type
ACM Student Research Competition
Poster
Reception
TimeTuesday, November 14th5:15pm -
7pm
LocationFour Seasons Ballroom
DescriptionPortage is a massively parallel remapping framework to
transfer fields between general polyhedral meshes while
conserving integral quantities of interest. The
framework also has the capability to remap data between
two point clounds. Portage is templated on the component
classes required in conservative remapping - search,
intersection and interpolation as well as on the mesh
and field managers. Applications supply Portage with
custom components while the framework takes care of
distributed parallelism using MPI and threaded
parallelism using NVIDIA Thrust to scale to many
thousands of cores. Moreover, the imposition of a
functional design on the components used by Portage
makes it very amenable to achieve task parallelism with
runtime systems such as Legion. Portage has been tested
in 2D/3D for remapping between general polygonal and
polyhedral meshes and between point clouds. We present
scaling results for distributed (MPI) and on-node
parallelism (OpenMP) on LANL's HPC machines.
Authors
