MPICH is distributed under a BSD-like license. NOTE: MPICH binary packages are available in many UNIX distributions and for Windows. For example, you can search for it using “yum” (on Fedora), “apt” (Debian/Ubuntu), “pkg_add” (FreeBSD) or “port”/”brew” (Mac OS). If available for your platform, this is likely the easiest installation method since it automatically checks for dependency packages and installs them. Otherwise you can use the installation guide for installing MPICH from the source code below.
Release Platform Download Size
mpich-4.2.2 (stable release)MPICH[http]38 MB
hydra-4.2.2 (stable release)Hydra (mpiexec)[http]6 MB
libpmi-4.2.2 (stable release)libpmi[http]1 MB
mpich-testsuite-4.2.2 (stable release)MPICH Testsuite[http]3 MB
mpich-4.1.3 (legacy release)MPICH[http]37 MB
hydra-4.1.3 (legacy release)Hydra (mpiexec)[http]6 MB
libpmi-4.1.3 (legacy release)libpmi[http]1 MB
mpich-testsuite-4.1.3 (legacy release)MPICH Testsuite[http]3 MB
Older releases are available here. Nightly snapshots are available here. MPE releases are available here.

Packages Included in UNIX/Windows Distributions:

Platform Maintainer(s) Download Base MPICH Version
Ubuntu Torquil Macdonald Sorensen [kinetic] 4.0.2
[jammy] 4.0
[focal] 3.3.2
[bionic] 3.3
Debian Torquil Macdonald Sorensen [bookworm] 4.0.2
[bullseye] 3.4.1
[buster] 3.3
[stretch] 3.2
Fedora/RHEL/CentOS Deji Akingunola [Rawhide] 4.0.2
[Fedora 37] 4.0.2
[Fedora 36] 3.4.3
FreeBSD Chris Rees Thierry Thomas [http] 3.4.3
Arch Linux Jed Brown [http] 4.1
Gentoo Justin Lecher Justin Bronder [http] 3.4.3
Mac OS (via MacPorts) Eric A. Borisch [stable] 4.1
Mac OS (via homebrew) Yanfei Guo [stable] 4.1
OpenIndiana Aurelien Larcher [http] 3.2
Microsoft Windows Microsoft MPI Team [http] 1.0.3

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