aws-samples · amanshanbhag · Sep 18, 2025 · Sep 5, 2025 · Sep 18, 2025
diff --git a/micro-benchmarks/nccl-tests/README.md b/micro-benchmarks/nccl-tests/README.md
@@ -68,6 +68,7 @@ If you wish to build the containar image by yourself, follow this section. Alter
           -t ${CONTAINER_IMAGE_NAME_TAG} \
           .
    ```
+   Note: If you are using an arm64 platform (like p6e-gb200.36xlarge, or any ultraserver comprised of that instance, for example), pass in `--platform=linux/arm64` into the `docker build` command above. Or, just build your image directly on an `arm64` based instance!
 
 1. Once the container image is prepared, you can check if it is present with `docker images`. You should see an output similar to this one:
    ```

diff --git a/micro-benchmarks/nccl-tests/nccl-tests-gb200.Dockerfile b/micro-benchmarks/nccl-tests/nccl-tests-gb200.Dockerfile
-Original file line number
+Diff line change
@@ Expand Up @@
               -t ${CONTAINER_IMAGE_NAME_TAG} \
               .
        ```
+       Note: If you are using an arm64 platform (like p6e-gb200.36xlarge, or any ultraserver comprised of that instance, for example), pass in `--platform=linux/arm64` into the `docker build` command above. Or, just build your image directly on an `arm64` based instance!
 . Once the container image is prepared, you can check if it is present with `docker images`. You should see an output similar to this one:
        ```
@@ Expand Down @@