From 62fbc1442cd4f98ac105f71cc34842bcc46e576b Mon Sep 17 00:00:00 2001
From: Popescu V <136721202+popescu-v@users.noreply.github.com>
Date: Thu, 4 Jul 2024 17:36:02 +0200
Subject: [PATCH 1/3] Add `--allow-run-as-root` to OpenMPI command, according
 to upstream `khiops-env`

closes #203
---
 khiops/core/internals/runner.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/khiops/core/internals/runner.py b/khiops/core/internals/runner.py
index 5fe03059..9700f78b 100644
--- a/khiops/core/internals/runner.py
+++ b/khiops/core/internals/runner.py
@@ -1269,7 +1269,7 @@ def _set_mpi_command_args_with_mpiexec(self, mpiexec_path, installation_method):
             elif platform.system() == "Linux":
                 # For Linux native installations we use OpenMPI
                 if installation_method == "binary+pip":
-                    self.mpi_command_args.append("--quiet")
+                    self.mpi_command_args += ["--allow-run-as-root", "--quiet"]
                 self.mpi_command_args += [
                     "-n",
                     str(self.max_cores),

From 79940ca81861a6cc983c6679221b84827c056b19 Mon Sep 17 00:00:00 2001
From: Popescu V <136721202+popescu-v@users.noreply.github.com>
Date: Thu, 4 Jul 2024 17:37:12 +0200
Subject: [PATCH 2/3] Remove variables for running OpenMPI as root in the CI

Indeed, this is now hard-coded in the KhiopsLocalRunner, as per #203
---
 .github/workflows/pip.yml        | 3 ---
 .github/workflows/unit-tests.yml | 3 ---
 2 files changed, 6 deletions(-)

diff --git a/.github/workflows/pip.yml b/.github/workflows/pip.yml
index ed05e318..093b4c06 100644
--- a/.github/workflows/pip.yml
+++ b/.github/workflows/pip.yml
@@ -71,9 +71,6 @@ jobs:
       - name: Run tests
         env:
           KHIOPS_SAMPLES_DIR: ${{ github.workspace }}/khiops-samples
-          # This is needed so that OpenMPI's mpiexec can be run as root
-          OMPI_ALLOW_RUN_AS_ROOT: 1
-          OMPI_ALLOW_RUN_AS_ROOT_CONFIRM: 1
           # Force > 2 CPU cores to launch mpiexec
           KHIOPS_PROC_NUMBER: 4
           # Oversubscribe for MPI 4.x
diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index bf7b9f45..a4341b25 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -91,9 +91,6 @@ jobs:
           KHIOPS_DOCKER_RUNNER_URL: https://localhost:11000
           KHIOPS_DOCKER_RUNNER_SHARED_DIR: /tmp/sandbox
           KHIOPS_RUNNER_SERVICE_PATH: /scripts/run_service.sh
-          # This is needed so that OpenMPI's mpiexec can be run as root
-          OMPI_ALLOW_RUN_AS_ROOT: 1
-          OMPI_ALLOW_RUN_AS_ROOT_CONFIRM: 1
           # Force > 2 CPU cores to launch mpiexec
           KHIOPS_PROC_NUMBER: 4
           # Oversubscribe for MPI 4.x

From db36ba75a94101ebf9f8d90816fe85c11f8832ed Mon Sep 17 00:00:00 2001
From: popescu-v <136721202+popescu-v@users.noreply.github.com>
Date: Thu, 4 Jul 2024 18:43:15 +0200
Subject: [PATCH 3/3] Update CHANGELOG for release 10.2.2.1 (#206)

---
 CHANGELOG.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ef1f42bf..650f4966 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,12 @@
   - Example: 10.2.1.4 is the 5th version that supports khiops 10.2.1.
 - Internals: Changes in *Internals* sections are unlikely to be of interest for data scientists.
 
+## 10.2.2.1 - 2024-07-05
+
+### Changed
+- *Internals*:
+  - The OpenMPI backend now executes with the `--allow-run-as-root` option.
+
 ## 10.2.2.0 - 2024-07-03
 
 ### Added