Librepa ("Repa")

Librepa is a library for parallel, distributed-memory, load-balanced, regular, three-dimensional grids.

It provides these under a common interface, that can be used to query the structure of the grid, map positions to cells and ranks and repartition it. Librepa does not handle numeric payload.

For the documentation, see DOC.md.

Dependencies

For CI purposes, etc. a working Docker container with all dependencies as well as its Dockerfile can be found on Docker Hub.

Required

• MPI distribution (e.g. OpenMPI)
• Boost (mpi, serialization) v1.67, 1.68 or 1.72 or newer
• CMake and Make/Ninja/... for building
• C++14 compatible compiler and standard library

Optional

• Boost (unit_test) for tests
• KDPart for kd-tree-based load-balancing method
• ParMETIS for graph-partitioning-based load-balancing method
• lahnerml's p4est for SFC-based grid

Install

Spack is the recommended way to install repa. First, add the spack repo spack-hirschsn with the receipe for repa and its dependencies. Then simply:

spack install librepa

Development

For development purposes, you can also install repa's dependencies with spack (you, again, need the additional spack repo, see above):

# Install dependencies in a spack environment called 'repa-dev'
spack env create repa-dev
spack env activate repa-dev
spack install --only dependencies librepa

Manual Build

If you need to build repa by hand:

git clone https://github.com/hirschsn/repa && cd repa
spack env activate repa-dev
mkdir build && cd build
cmake ..
make
make test # Optional

License

Copyright 2017-2020 The Repa Authors

Repa is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

Repa is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with Repa. If not, see https://www.gnu.org/licenses/.

Contributors

Core:

• Steffen Hirschmann

Contributors:

• Adriaan Nieß
• Maximilian Wildbrett
• Malte Brunn
• Michael Lahnert
• Simon Hauser
• Benjamin Vier