diff --git a/o/OpenMPI/OpenMPI-4.0.3-GCC-9.3.0.eb b/o/OpenMPI/OpenMPI-4.0.3-GCC-9.3.0.eb
new file mode 100644
index 00000000..62ce54c6
--- /dev/null
+++ b/o/OpenMPI/OpenMPI-4.0.3-GCC-9.3.0.eb
@@ -0,0 +1,27 @@
+# JH 2020
+
+name = 'OpenMPI'
+version = '4.0.3'
+
+homepage = 'https://www.open-mpi.org/'
+description = """The Open MPI Project is an open source MPI-3 implementation."""
+
+toolchain = {'name': 'GCC', 'version': '9.3.0'}
+
+source_urls = ['https://www.open-mpi.org/software/ompi/v%(version_major_minor)s/downloads']
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['6346bf976001ad274c7e018d6cc35c92bbb9426d8f7754fac00a17ea5ac8eebc']
+
+dependencies = [
+    ('zlib', '1.2.11'),
+    ('hwloc', '2.2.0'),
+    ('UCX', '1.8.0'),
+]
+
+# disable MPI1 compatibility for now, see what breaks...
+# configopts = '--enable-mpi1-compatibility '
+
+configopts = '--with-tm=/opt/pbs '  # Enable PBS
+configopts += '--with-ucx=$EBROOTUCX '
+
+moduleclass = 'mpi'