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2026-01-06 16:40:15 +01:00
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docs/merlin7/05-Software-Support/openmpi.md
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---
title: OpenMPI Support
#tags:
last_updated: 15 January 2025
keywords: software, openmpi, slurm
summary: "This document describes how to use OpenMPI in the Merlin7 cluster"
sidebar: merlin7_sidebar
permalink: /merlin7/openmpi.html
---
# OpenMPI Support
## Introduction
@@ -70,7 +62,7 @@ specific pmix plugin versions available: pmix_v5,pmix_v4,pmix_v3,pmix_v2
```
Important Notes:
* For OpenMPI, always use `pmix` by specifying the appropriate version (`pmix_$version`).
* For OpenMPI, always use `pmix` by specifying the appropriate version (`pmix_$version`).
When loading an OpenMPI module (via [PModules](pmodules.md) or [Spack](spack.md)), the corresponding PMIx version will be automatically loaded.
* Users do not need to manually manage PMIx compatibility.