open-mpi
brew install open-mpiAlso known as: openmpi
High performance message passing library
License: BSD-3-Clause-Open-MPI AND mpich2
Development: Pull requests
Formula JSON API: /api/formula/open-mpi.json
Formula code: open-mpi.rb on GitHub
Bottle (binary package) installation support provided for:
| macOS on Apple Silicon |
golden gate | ✅ |
|---|---|---|
| tahoe | ✅ | |
| sequoia | ✅ | |
| Linux | ARM64 | ✅ |
| x86_64 | ✅ |
Current versions:
| stable | ✅ | 5.0.11 |
| head | ⚡️ | HEAD |
Depends on:
| gcc | 16.2.0 | GNU compiler collection |
| hwloc | 2.15.0 | Portable abstraction of the hierarchical topology of modern architectures |
| libevent | 2.1.13 | Asynchronous event library |
| pmix | 6.1.0 | Process Management Interface for HPC environments |
| prrte | 4.1.0 | PMIx Reference RunTime Environment |
Conflicts with: mpich (because both install MPI compiler wrappers)
Binaries:
mpiCC,
mpic++,
mpicc,
mpicxx,
mpiexec,
mpif77,
mpif90,
mpifort,
mpirun,
ompi_info,
opal_wrapper,
oshrun
GitHub Packages downloads:
| Last 30 days | 78,049 |
|---|---|
| Downloads | 7,376,420 |
| Analytics install events (30 days) | 2,349 |
| Downloads / install events (30 days) | 33.2× |
Source: GitHub Packages, fetched 2026-11-14T00:24:29Z. Analytics dates: 2026-10-15 to 2026-11-14. Totals exclude downloads from Bintray before the migration to GitHub Packages. Downloads and install attempts measure different things; the difference does not count analytics opt-outs. Definitions and limitations.
Analytics:
| 30 days | 90 days | 365 days | |
|---|---|---|---|
| Installs | 2,342 | 9,163 | 63,164 |
Installs (--HEAD) | 7 | 20 | 63 |
| Installs on Request | 1,330 | 5,381 | 25,498 |
Installs on Request (--HEAD) | 7 | 20 | 63 |
Build Errors (--HEAD) | 11 | ||
| Build Errors | 11 |