Enable ASAN for mpi4py in CI

Run mpi4py with ASAN, with a separate step that aborts on errors.
The existing steps should run to completion even if an error is detected.

Signed-off-by: Joseph Schuchart <joseph.schuchart@stonybrook.edu>

Author: devreal

.github/workflows/ompi_mpi4py.yaml

@@ -18,6 +18,15 @@ on:
 permissions:
   contents: read
 
+env:
+  # ASAN needs to come first
+  LD_PRELOAD: /usr/lib/x86_64-linux-gnu/libasan.so
+  # disable ODR violation detection until #13469 is fixed
+  # and don't abort on error by default
+  ASAN_OPTIONS: detect_odr_violation=0,abort_on_error=0
+  # enable leak detection but do not fail on leaks
+  LSAN_OPTIONS: detect_leaks=1,exitcode=0
+
 jobs:
   test:
     runs-on: ubuntu-22.04
@@ -59,7 +68,8 @@ jobs:
               --disable-oshmem
               --disable-silent-rules
               --prefix=/opt/openmpi
-              LDFLAGS=-Wl,-rpath,/opt/openmpi/lib
+              CFLAGS="-g -O0 -fsanitize=address"
+              LDFLAGS="-Wl,-rpath,/opt/openmpi/lib -fsanitize=address"
       working-directory: mpi-build
 
     - name: Build MPI
@@ -158,3 +168,18 @@ jobs:
       if:   ${{ true }}
       timeout-minutes: 10
 
+    - name: Test mpi4py (np=1)
+      env:
+        # run again and abort if ASAN detects an error
+        ASAN_OPTIONS: detect_odr_violation=0,abort_on_error=1
+      run:  mpiexec -n 1 python test/main.py -v -x TestExcErrhandlerNull
+      if:   ${{ true }}
+      timeout-minutes: 10
+
+    - name: Test mpi4py (np=4)
+      env:
+        # run again and abort if ASAN detects an error
+        ASAN_OPTIONS: detect_odr_violation=0,abort_on_error=1
+      run:  mpiexec -n 4 python test/main.py -v -f -x TestExcErrhandlerNull
+      if:   ${{ true }}
+      timeout-minutes: 10