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AWS AWSEC2 documentation change

Service: AWSEC2 · 2025-04-11 · Documentation low

File: AWSEC2/latest/UserGuide/efa-start.md

Summary

Added Intel MPI OS compatibility note and updated Open MPI version references from 4 to 4.1 with installation path clarifications

Security assessment

Changes focus on software version updates and compatibility notes rather than security issues or features

Diff

diff --git a/AWSEC2/latest/UserGuide/efa-start.md b/AWSEC2/latest/UserGuide/efa-start.md
index aa81182fc..e28fdbe83 100644
--- a//AWSEC2/latest/UserGuide/efa-start.md
+++ b//AWSEC2/latest/UserGuide/efa-start.md
@@ -147,0 +148,4 @@ The steps differ depending on whether you intend to use EFA with Open MPI, with
+###### Note
+
+Some operating systems might not be supported with Intel MPI. If you are using Intel MPI, refer to the [ Intel MPI documentation](https://www.intel.com/content/www/us/en/developer/articles/system-requirements/mpi-library-system-requirements.html) to verify support for your operating system.
+
@@ -229 +233 @@ To install the EFA software with Libfabric and Open MPI, run the following comma
-From EFA 1.30.0, both Open MPI 4 and Open MPI 5 are installed by default. You can optionally specify the version of Open MPI that you want to install. To install only Open MPI 4, include `--mpi=openmpi4`. To install only Open MPI 5, include `--mpi=openmpi5`. To install both, omit the `--mpi` option.
+From EFA 1.30.0, both Open MPI 4.1 and Open MPI 5 are installed by default. You can optionally specify the version of Open MPI that you want to install. To install only Open MPI 4.1, include `--mpi=openmpi4`. To install only Open MPI 5, include `--mpi=openmpi5`. To install both, omit the `--mpi` option.
@@ -233 +237 @@ From EFA 1.30.0, both Open MPI 4 and Open MPI 5 are installed by default. You ca
-Libfabric is installed to `/opt/amazon/efa`. Open MPI 4 is installed to `/opt/amazon/openmpi`. Open MPI 5 is installed to `/opt/amazon/openmpi5`.
+Libfabric is installed to `/opt/amazon/efa`. Open MPI 4.1 is installed to `/opt/amazon/openmpi`. Open MPI 5 is installed to `/opt/amazon/openmpi5`.
@@ -242 +246 @@ If you intend to use EFA with Open MPI only, you must install the EFA software w
-From EFA 1.30.0, both Open MPI 4 and Open MPI 5 are installed by default. You can optionally specify the version of Open MPI that you want to install. To install only Open MPI 4, include `--mpi=openmpi4`. To install only Open MPI 5, include `--mpi=openmpi5`. To install both, omit the `--mpi` option.
+From EFA 1.30.0, both Open MPI 4.1 and Open MPI 5 are installed by default. You can optionally specify the version of Open MPI that you want to install. To install only Open MPI 4.1, include `--mpi=openmpi4`. To install only Open MPI 5, include `--mpi=openmpi5`. To install both, omit the `--mpi` option.
@@ -246 +250 @@ From EFA 1.30.0, both Open MPI 4 and Open MPI 5 are installed by default. You ca
-Libfabric is installed to `/opt/amazon/efa`. Open MPI 4 is installed to `/opt/amazon/openmpi`. Open MPI 5 is installed to `/opt/amazon/openmpi5`.
+Libfabric is installed to `/opt/amazon/efa`. Open MPI 4.1 is installed to `/opt/amazon/openmpi`. Open MPI 5 is installed to `/opt/amazon/openmpi5`.
@@ -270 +274 @@ Perform this step only if you intend to use Open MPI 5.
-From EFA 1.30.0, both Open MPI 4 and Open MPI 5 are installed by default. Alternatively, you can choose to install only Open MPI 4 or Open MPI 5.
+From EFA 1.30.0, both Open MPI 4.1 and Open MPI 5 are installed by default. Alternatively, you can choose to install only Open MPI 4.1 or Open MPI 5.