mpi4py¶

MPI for Python (mpi4py) provides bindings of the Message Passing Interface (MPI) standard for the Python programming language, allowing any Python program to exploit multiple processors.

homepage: https://github.com/mpi4py/mpi4py

Available installations¶

mpi4py version	Supported CPU targets	Supported GPU targets	EESSI version	Module
3.1.4	`generic`: `aarch64`, `x86_64` Arm: `a64fx`, `neoverse_n1`, `neoverse_v1`, `nvidia/grace` AMD: `zen2`, `zen3`, `zen4` Intel: `haswell`, `skylake_avx512`, `sapphirerapids`, `icelake`, `cascadelake`	(none)	2023.06	`mpi4py/3.1.4-gompi-2022b`
3.1.4	`generic`: `aarch64`, `x86_64` Arm: `a64fx`, `neoverse_n1`, `neoverse_v1`, `nvidia/grace` AMD: `zen2`, `zen3`, `zen4` Intel: `haswell`, `skylake_avx512`, `sapphirerapids`, `icelake`, `cascadelake`	(none)	2023.06	`mpi4py/3.1.4-gompi-2023a`
3.1.5	`generic`: `aarch64`, `x86_64` Arm: `a64fx`, `neoverse_n1`, `neoverse_v1`, `nvidia/grace` AMD: `zen2`, `zen3`, `zen4` Intel: `haswell`, `skylake_avx512`, `sapphirerapids`, `icelake`, `cascadelake`	(none)	2023.06	`mpi4py/3.1.5-gompi-2023b`
4.0.1	`generic`: `aarch64`, `x86_64` Arm: `a64fx`, `neoverse_n1`, `neoverse_v1`, `nvidia/grace` AMD: `zen2`, `zen3`, `zen4` Intel: `haswell`, `skylake_avx512`, `sapphirerapids`, `icelake`, `cascadelake`	(none)	2025.06	`mpi4py/4.0.1-gompi-2024a`
4.1.0	`generic`: `aarch64`, `x86_64` Arm: `a64fx`, `neoverse_n1`, `neoverse_v1`, `nvidia/grace` AMD: `zen2`, `zen3`, `zen4` Intel: `haswell`, `skylake_avx512`, `sapphirerapids`, `icelake`, `cascadelake`	(none)	2025.06	`mpi4py/4.1.0-gompi-2025a`

Extensions¶

Overview of extensions included in mpi4py installations

mpi4py¶

`mpi4py` version	mpi4py modules that include it
3.1.4	`mpi4py/3.1.4-gompi-2022b` `mpi4py/3.1.4-gompi-2023a`
3.1.5	`mpi4py/3.1.5-gompi-2023b`
4.0.1	`mpi4py/4.0.1-gompi-2024a`
4.1.0	`mpi4py/4.1.0-gompi-2025a`