https://github.com/bsamseth/mpi4py-travis

Reference repository showing how to use Travis CI for MPI with C++17 and mpi4py with Python3.7+.
https://github.com/bsamseth/mpi4py-travis

cpp17 mpi mpi4py openmpi python37 travis travis-ci

Last synced: 27 days ago
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Reference repository showing how to use Travis CI for MPI with C++17 and mpi4py with Python3.7+.

• Host: GitHub
• URL: https://github.com/bsamseth/mpi4py-travis
• Owner: bsamseth
• License: unlicense
• Created: 2019-02-18T15:36:00.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2019-02-19T06:20:39.000Z (almost 6 years ago)
• Last Synced: 2024-10-26T14:04:30.212Z (3 months ago)
• Topics: cpp17, mpi, mpi4py, openmpi, python37, travis, travis-ci
• Language: Shell
• Homepage:
• Size: 26.4 KB
• Stars: 2
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# mpi4py-travis

This is a reference repository showing how to use Travis CI with:

- [OpenMPI](open-mpi.org) with C++17 support

- [mpi4py](https://mpi4py.readthedocs.io/en/stable/) with Python 3.7

The approach is to fetch a C++17 compiler (e.g. `g++7`) and Python 3.7 with special apt-sources, then building OpenMPI from source with this compiler, which results in a C++17 compatible MPI compiler. Finally, mpi4py is installed, being told about this new MPI compiler. 

Additionally, because building MPI from source takes quite some time (10+ minutes), the installation is cached between each build. This means the MPI installation only has to be built once, and is reused the rest of the time, which saves time.

See [`.travis.yml`](.travis.yml) for the how to do this!