diff --git a/.gitignore b/.gitignore
index 056cde5bb1af3f94e352cb70f8b83d18b55749f7..b933df1e22bf2c5274075f1361095cf542210d3e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
-./profile.bash
+profile.bash
+batch_preambles
 **.DS_Store
 **/__pycache__
\ No newline at end of file
diff --git a/machine_profiles/alcc_spack/profile.bash b/machine_profiles/alcc_spack/profile.bash
index f5b0755060ae6ff7323db45c04fc33faa30f21d5..c49a7befe90a05c1cb7581697dbc26d8b6495df5 100644
--- a/machine_profiles/alcc_spack/profile.bash
+++ b/machine_profiles/alcc_spack/profile.bash
@@ -1,9 +1,13 @@
 # --- Modules and other things ---
 
-module load wrf wrf-chem wps nco netcdf-c netcdf-fortran anthro_emis fire_emis megan_bio_emiss mozbc wesely-exo_coldens python gdal py-requests py-cdsapi py-cartopy py-matplotlib py-netcdf4 py-numpy py-pyproj py-rasterio py-scipy py-shapely py-simplekml py-xarray py-pyshp py-pandas
+module load wrf wrf-chem-debug wps nco netcdf-c netcdf-fortran anthro_emis fire_emis megan_bio_emiss mozbc wesely-exo_coldens python gdal py-requests py-cdsapi py-cartopy py-matplotlib py-netcdf4 py-numpy py-pyproj py-rasterio py-scipy py-shapely py-simplekml py-xarray py-pyshp py-pandas
 
 ulimit -s unlimited
 
+export OMPI_MCA_PML=ucx
+export UCX_TLS=tcp,sm
+export UCX_NET_DEVICES=eth5
+
 # --- MPI settings ---
 
 mpiCommandPre="mpirun"