Test with binding none and oversubscribe

Author: rohanbabbar04

.github/workflows/build.yml

@@ -42,10 +42,16 @@ jobs:
           if [ -f requirements.txt ]; then pip install -r requirements-dev.txt; fi
       - name: Install pylops-mpi
         run: pip install .
-      - name: Debug MPI Execution
+      - name: Debug MPI tests
         run: |
-          echo "Starting MPI test"
-          mpiexec -n ${{ matrix.rank }} hostname
-          echo "MPI test completed"
+          echo "CPUs available: $(nproc)"
+          if [ "${{ matrix.mpi }}" = "openmpi" ]; then
+            mpiexec --oversubscribe \
+                    --bind-to none \
+                    -n ${{ matrix.rank }} python -m pytest tests/ --with-mpi -v
+          else
+            mpiexec -n ${{ matrix.rank }} python -m pytest tests/ --with-mpi -v
+          fi
+
 #      - name: Testing using pytest-mpi
 #        run: mpiexec -n ${{ matrix.rank }} pytest tests/ --with-mpi