mpi4py: run the spawn and dynamic process tests

Split the mpi4py Github Action into 3 parts:

1. build: do everything to build, configure, and install Open MPI and
   mpi4py
2. run: run all the mpi4py tests with its defaults.  As of March 2024,
   this disables the spawn and dynamic tests, which means that the
   entire block of tests should pass.
3. run_spawn: run all the mpi4py tests, including the spawn and
   dynamic tests.  As of March 2024, we know some of these tests are
   failing.

Signed-off-by: Jeff Squyres <[email protected]>

Author: jsquyres

.github/workflows/ompi_mpi4py.yaml

@@ -3,7 +3,7 @@ name: mpi4py
 on: [pull_request]
 
 jobs:
-  mpi4py:
+  build:
     runs-on: ubuntu-latest
     timeout-minutes: 60
 
@@ -89,6 +89,14 @@ jobs:
       env:
         CFLAGS: "-O0"
 
+  run:
+    # This whole set of tests run with mpi4py's defaults.  As of March
+    # 2024, this means disabling the spawn and dynamic tests.  We want
+    # this block of tests to pass.
+    needs: [build]
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
     - name: Test mpi4py (singleton)
       run:  python test/main.py -v
       if:   ${{ true }}
@@ -118,3 +126,54 @@ jobs:
       run:  python demo/test-run/test_run.py -v
       if:   ${{ true }}
       timeout-minutes: 10
+
+  run_spawn:
+    # This whole set of tests runs explicitly with setting "enable the
+    # spawn and dynamic tests".  As of March 2024, we know that Open
+    # MPI is failing these tests.
+    needs: [build]
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+    - name: Test mpi4py (singleton)
+      run:  python test/main.py -v
+      if:   ${{ true }}
+      env:
+        MPI4PY_TEST_SPAWN: "1"
+        MPI4PY_TEST_DYNPROC: "1"
+      timeout-minutes: 10
+    - name: Test mpi4py (np=1)
+      run:  mpiexec -n 1 python test/main.py -v
+      env:
+        MPI4PY_TEST_SPAWN: "1"
+        MPI4PY_TEST_DYNPROC: "1"
+      if:   ${{ true }}
+      timeout-minutes: 10
+    - name: Test mpi4py (np=2)
+      run:  mpiexec -n 2 python test/main.py -v -f
+      env:
+        MPI4PY_TEST_SPAWN: "1"
+        MPI4PY_TEST_DYNPROC: "1"
+      if:   ${{ true }}
+      timeout-minutes: 10
+    - name: Test mpi4py (np=3)
+      run:  mpiexec -n 3 python test/main.py -v -f
+      env:
+        MPI4PY_TEST_SPAWN: "1"
+        MPI4PY_TEST_DYNPROC: "1"
+      if:   ${{ true }}
+      timeout-minutes: 10
+    - name: Test mpi4py (np=4)
+      run:  mpiexec -n 4 python test/main.py -v -f
+      env:
+        MPI4PY_TEST_SPAWN: "1"
+        MPI4PY_TEST_DYNPROC: "1"
+      if:   ${{ true }}
+      timeout-minutes: 10
+    - name: Test mpi4py (np=5)
+      run:  mpiexec -n 5 python test/main.py -v -f
+      env:
+        MPI4PY_TEST_SPAWN: "1"
+        MPI4PY_TEST_DYNPROC: "1"
+      if:   ${{ true }}
+      timeout-minutes: 10