diff --git a/rose-stem/app/lfric2lfric/opt/rose-app-multi-cpu.conf b/rose-stem/app/lfric2lfric/opt/rose-app-multi-cpu.conf
new file mode 100644
index 000000000..6512c9267
--- /dev/null
+++ b/rose-stem/app/lfric2lfric/opt/rose-app-multi-cpu.conf
@@ -0,0 +1,4 @@
+[namelist:partitioning(source)]
+panel_decomposition='custom'
+panel_xproc=2
+panel_yproc=1
diff --git a/rose-stem/app/lfric2lfric/opt/rose-app-suite_controlled.conf b/rose-stem/app/lfric2lfric/opt/rose-app-suite_controlled.conf
index eceb8d060..17bfd0bfd 100644
--- a/rose-stem/app/lfric2lfric/opt/rose-app-suite_controlled.conf
+++ b/rose-stem/app/lfric2lfric/opt/rose-app-suite_controlled.conf
@@ -29,11 +29,6 @@ panel_decomposition='${PANEL_DECOMP}'
 panel_xproc=${XPROC}
 panel_yproc=${YPROC}
 
-[namelist:partitioning(source)]
-panel_decomposition='${PANEL_DECOMP}'
-panel_xproc=${XPROC}
-panel_yproc=${YPROC}
-
 [namelist:time]
 timestep_end='${RESTART_STOP}'
 timestep_start='${RESTART_START}'
diff --git a/rose-stem/site/common/lfric2lfric/tasks_lfric2lfric.cylc b/rose-stem/site/common/lfric2lfric/tasks_lfric2lfric.cylc
index b68dc1efc..164ed8558 100644
--- a/rose-stem/site/common/lfric2lfric/tasks_lfric2lfric.cylc
+++ b/rose-stem/site/common/lfric2lfric/tasks_lfric2lfric.cylc
@@ -5,7 +5,7 @@
 {# ########################################################################### #}
 {% do LOG.debug("Entered site/common/lfric2lfric/tasks_solver.cylc") %}
 
-{% if task_ns.conf_name == "ral_seuk-C32_lam_MG" %}
+{% if task_ns.conf_name == "ral_seuk-C32_lam_MG_1cpu" %}
 
     {% do task_dict.update({
         "opt_confs": ["ral_seuk"],
@@ -18,7 +18,34 @@
         "src_type": "",
     }) %}
 
-{% elif task_ns.conf_name == "oasis_ral_seuk-C32_lam_MG" %}
+{% elif task_ns.conf_name == "ral_seuk-C32_lam_MG_4cpu" %}
+
+    {% do task_dict.update({
+        "opt_confs": ["ral_seuk"],
+        "resolution": "seuk_MG",
+        "dst_mesh": "",
+        "dst_name": "",
+        "dst_type": "",
+        "src_mesh": "",
+        "src_name": "",
+        "src_type": "",
+        "mpi_parts": 4,
+    }) %}
+
+{% elif task_ns.conf_name == "oasis_ral_seuk-C32_lam_MG_1cpu" %}
+
+    {% do task_dict.update({
+        "opt_confs": ["ral_seuk","oasis"],
+        "resolution": "seuk_MG",
+        "dst_mesh": "seuk_MG",
+        "dst_name": "multigrid_l1",
+        "dst_type": "regional",
+        "src_mesh": "seuk_MG",
+        "src_name": "dynamics",
+        "src_type": "regional",
+    }) %}
+
+{% elif task_ns.conf_name == "oasis_ral_seuk-C32_lam_MG_4cpu" %}
 
     {% do task_dict.update({
         "opt_confs": ["ral_seuk","oasis"],
@@ -29,6 +56,7 @@
         "src_mesh": "seuk_MG",
         "src_name": "dynamics",
         "src_type": "regional",
+        "mpi_parts": 4,
     }) %}
 
 {% elif task_ns.conf_name == "ral3-seuk" %}
@@ -70,7 +98,20 @@
         "src_type": "",
     }) %}
 
-{% elif task_ns.conf_name == "clim_gal9-C24_C12" %}
+{% elif task_ns.conf_name == "clim_gal9-C24_C12_1cpu" %}
+
+    {% do task_dict.update({
+        "opt_confs": ["clim_gal9"],
+        "resolution": "C24_C12",
+        "dst_mesh": "",
+        "dst_name": "",
+        "dst_type": "",
+        "src_mesh": "",
+        "src_name": "",
+        "src_type": "",
+    }) %}
+
+{% elif task_ns.conf_name == "clim_gal9-C24_C12_6cpu" %}
 
     {% do task_dict.update({
         "opt_confs": ["clim_gal9"],
@@ -81,9 +122,10 @@
         "src_mesh": "",
         "src_name": "",
         "src_type": "",
+        "mpi_parts": 6,
     }) %}
 
-{% elif task_ns.conf_name == "oasis_clim_gal9-C24_C12" %}
+{% elif task_ns.conf_name == "oasis_clim_gal9-C24_C12_1cpu" %}
 
     {% do task_dict.update({
         "opt_confs": ["clim_gal9","oasis"],
@@ -96,7 +138,21 @@
         "src_type": "global",
     }) %}
 
-{% elif task_ns.conf_name == "oasis_clim_gal9_C12-ral_seuk_C16_lam" %}
+{% elif task_ns.conf_name == "oasis_clim_gal9-C24_C12_6cpu" %}
+
+    {% do task_dict.update({
+        "opt_confs": ["clim_gal9","oasis"],
+        "resolution": "C24_C12",
+        "dst_mesh": "C24_C12",
+        "dst_name": "C24",
+        "dst_type": "global",
+        "src_mesh": "C24_C12",
+        "src_name": "C12",
+        "src_type": "global",
+        "mpi_parts": 6,
+    }) %}
+
+{% elif task_ns.conf_name == "oasis_clim_gal9_C12-ral_seuk_C16_lam_1cpu" %}
 
     {% do task_dict.update({
         "opt_confs": ["clim_gal9_ral_seuk","oasis"],
@@ -109,7 +165,21 @@
         "src_type": "global",
     }) %}
 
-{% elif task_ns.conf_name == "oasis_clim_gal9_C12-ral_seuk_C16_lam-lbc" %}
+{% elif task_ns.conf_name == "oasis_clim_gal9_C12-ral_seuk_C16_lam_4cpu" %}
+
+    {% do task_dict.update({
+        "opt_confs": ["clim_gal9_ral_seuk","oasis", "multi-cpu"],
+        "resolution": "C12_C16_lam",
+        "dst_mesh": "seuk_MG",
+        "dst_name": "dynamics",
+        "dst_type": "regional",
+        "src_mesh": "C24_C12",
+        "src_name": "C12",
+        "src_type": "global",
+        "mpi_parts": 4,
+    }) %}
+
+{% elif task_ns.conf_name == "oasis_clim_gal9_C12-ral_seuk_C16_lam-lbc_1cpu" %}
 
   {# dst_name will need to change to "dynamics-lbc" when lbc meshes can be read #}
     {% do task_dict.update({
@@ -123,6 +193,21 @@
         "src_type": "global",
     }) %}
 
+{% elif task_ns.conf_name == "oasis_clim_gal9_C12-ral_seuk_C16_lam-lbc_4cpu" %}
+
+  {# dst_name will need to change to "dynamics-lbc" when lbc meshes can be read #}
+    {% do task_dict.update({
+        "opt_confs": ["clim_gal9_ral_seuk","oasis","lbc", "multi-cpu"],
+        "resolution": "C12_C16_lam",
+        "dst_mesh": "seuk_MG",
+        "dst_name": "dynamics-lbc",
+        "dst_type": "regional",
+        "src_mesh": "C24_C12",
+        "src_name": "C12",
+        "src_type": "global",
+        "mpi_parts": 4,
+    }) %}
+
 {% elif task_ns.conf_name == "canned" %}
 
     {% do task_dict.update({
diff --git a/rose-stem/site/meto/groups/groups_lfric2lfric.cylc b/rose-stem/site/meto/groups/groups_lfric2lfric.cylc
index eca0b1d27..55b20e1d0 100644
--- a/rose-stem/site/meto/groups/groups_lfric2lfric.cylc
+++ b/rose-stem/site/meto/groups/groups_lfric2lfric.cylc
@@ -8,13 +8,19 @@
 {# Azspice Groups #}
 {% do site_groups.update({
     "lfric2lfric_azspice_developer": [
-        "lfric2lfric_ral_seuk-C32_lam_MG_azspice_gnu_fast-debug-64bit",
-        "lfric2lfric_oasis_ral_seuk-C32_lam_MG_azspice_gnu_fast-debug-64bit",
+        "lfric2lfric_ral_seuk-C32_lam_MG_1cpu_azspice_gnu_fast-debug-64bit",
+        "lfric2lfric_ral_seuk-C32_lam_MG_4cpu_azspice_gnu_fast-debug-64bit",
+        "lfric2lfric_oasis_ral_seuk-C32_lam_MG_1cpu_azspice_gnu_fast-debug-64bit",
+        "lfric2lfric_oasis_ral_seuk-C32_lam_MG_4cpu_azspice_gnu_fast-debug-64bit",
         "lfric2lfric_ral3-seuk_azspice_gnu_fast-debug-64bit",
-        "lfric2lfric_clim_gal9-C24_C12_azspice_gnu_fast-debug-64bit",
-        "lfric2lfric_oasis_clim_gal9-C24_C12_azspice_gnu_fast-debug-64bit",
-        "lfric2lfric_oasis_clim_gal9_C12-ral_seuk_C16_lam_azspice_gnu_fast-debug-64bit",
-        "lfric2lfric_oasis_clim_gal9_C12-ral_seuk_C16_lam-lbc_azspice_gnu_fast-debug-64bit",
+        "lfric2lfric_clim_gal9-C24_C12_1cpu_azspice_gnu_fast-debug-64bit",
+        "lfric2lfric_clim_gal9-C24_C12_6cpu_azspice_gnu_fast-debug-64bit",
+        "lfric2lfric_oasis_clim_gal9-C24_C12_1cpu_azspice_gnu_fast-debug-64bit",
+        "lfric2lfric_oasis_clim_gal9-C24_C12_6cpu_azspice_gnu_fast-debug-64bit",
+        "lfric2lfric_oasis_clim_gal9_C12-ral_seuk_C16_lam_1cpu_azspice_gnu_fast-debug-64bit",
+        "lfric2lfric_oasis_clim_gal9_C12-ral_seuk_C16_lam_4cpu_azspice_gnu_fast-debug-64bit",
+        "lfric2lfric_oasis_clim_gal9_C12-ral_seuk_C16_lam-lbc_1cpu_azspice_gnu_fast-debug-64bit",
+        "lfric2lfric_oasis_clim_gal9_C12-ral_seuk_C16_lam-lbc_4cpu_azspice_gnu_fast-debug-64bit",
         "lfric2lfric_azspice_canned",
     ],
     "lfric2lfric_azspice_extra": [
@@ -36,13 +42,19 @@
 {# EX1A Groups #}
 {% do site_groups.update({
     "lfric2lfric_ex1a_developer": [
-        "lfric2lfric_ral_seuk-C32_lam_MG_ex1a_cce_fast-debug-64bit",
-        "lfric2lfric_oasis_ral_seuk-C32_lam_MG_ex1a_cce_fast-debug-64bit",
+        "lfric2lfric_ral_seuk-C32_lam_MG_1cpu_ex1a_cce_fast-debug-64bit",
+        "lfric2lfric_ral_seuk-C32_lam_MG_4cpu_ex1a_cce_fast-debug-64bit",
+        "lfric2lfric_oasis_ral_seuk-C32_lam_MG_1cpu_ex1a_cce_fast-debug-64bit",
+        "lfric2lfric_oasis_ral_seuk-C32_lam_MG_4cpu_ex1a_cce_fast-debug-64bit",
         "lfric2lfric_ral3-seuk_ex1a_cce_fast-debug-64bit",
-        "lfric2lfric_clim_gal9-C24_C12_ex1a_cce_fast-debug-64bit",
-        "lfric2lfric_oasis_clim_gal9-C24_C12_ex1a_cce_fast-debug-64bit",
-        "lfric2lfric_oasis_clim_gal9_C12-ral_seuk_C16_lam_ex1a_cce_fast-debug-64bit",
-        "lfric2lfric_oasis_clim_gal9_C12-ral_seuk_C16_lam-lbc_ex1a_cce_fast-debug-64bit",
+        "lfric2lfric_clim_gal9-C24_C12_1cpu_ex1a_cce_fast-debug-64bit",
+        "lfric2lfric_clim_gal9-C24_C12_6cpu_ex1a_cce_fast-debug-64bit",
+        "lfric2lfric_oasis_clim_gal9-C24_C12_1cpu_ex1a_cce_fast-debug-64bit",
+        "lfric2lfric_oasis_clim_gal9-C24_C12_6cpu_ex1a_cce_fast-debug-64bit",
+        "lfric2lfric_oasis_clim_gal9_C12-ral_seuk_C16_lam_1cpu_ex1a_cce_fast-debug-64bit",
+        "lfric2lfric_oasis_clim_gal9_C12-ral_seuk_C16_lam_4cpu_ex1a_cce_fast-debug-64bit",
+        "lfric2lfric_oasis_clim_gal9_C12-ral_seuk_C16_lam-lbc_1cpu_ex1a_cce_fast-debug-64bit",
+        "lfric2lfric_oasis_clim_gal9_C12-ral_seuk_C16_lam-lbc_4cpu_ex1a_cce_fast-debug-64bit",
         "lfric2lfric_ex1a_canned",
     ],
     "lfric2lfric_ex1a_extra": [