diff --git a/README.rst b/README.rst
index 43311a4..c240025 100644
--- a/README.rst
+++ b/README.rst
@@ -5,6 +5,18 @@ Model for Scale Adaptive River Transport
 The Model for Scale Adaptive River Transport, Mosart,
 is part of the Community Earth System Model.
 
+IMPORTANT NOTE: MOSART is Obsolescent!
+
+MOSART is part of CESM3, but is obsolescent.
+
+We do not have support for creating input datasets for MOSART and
+as such can NOT use MOSART for Paleo work.
+
+Longer term MOSART will be removed in future versions of CESM and the new model
+mizuRoute will be used for Paleo work as well as present day.
+It's also possible that external collaborators will support the use of MOSART
+for present day climate even as mizuRoute becomes the default model for CESM.
+
 See the CESM web site for documentation and information:
 
 http://www.cesm.ucar.edu
diff --git a/cime_config/config_compsets.xml b/cime_config/config_compsets.xml
index 2e0d1e2..bcdb077 100644
--- a/cime_config/config_compsets.xml
+++ b/cime_config/config_compsets.xml
@@ -37,8 +37,9 @@
   <!-- R compsets -->
 
   <compset>
+    <!-- This compset is NOT yet functional, but it is a capability that would be good for testing -->
     <alias>R2000MOSART</alias>
-    <lname>2000_SATM_DLND%LCPL_SICE_SOCN_MIZUROUTE_SGLC_SWAV</lname>
+    <lname>2000_SATM_DLND%LCPL_SICE_SOCN_MOSART_SGLC_SWAV</lname>
   </compset>
 
 </compsets>
diff --git a/cime_config/testdefs/testlist_mosart.xml b/cime_config/testdefs/testlist_mosart.xml
index 168d47b..ce171cf 100644
--- a/cime_config/testdefs/testlist_mosart.xml
+++ b/cime_config/testdefs/testlist_mosart.xml
@@ -1,27 +1,20 @@
 <?xml version="1.0"?>
 <testlist version="2.0">
 
-  <test name="PFS" grid="f10_f10_mg37" compset="I1850Clm50Sp" testmods="mosart/default">
+  <test name="PFS" grid="f10_f10_mg37" compset="I1850Clm60Sp" testmods="mosart/default">
     <machines>
       <machine name="derecho" compiler="intel" category="mosart"></machine>
+      <machine name="derecho" compiler="gnu" category="mosart"></machine>
       <machine name="betzy" compiler="intel" category="mosart_noresm"></machine>
+      <machine name="izumi" compiler="intel" category="mosart"></machine>
+      <machine name="izumi" compiler="gnu" category="mosart"></machine>
     </machines>
     <options>
       <option name="wallclock">00:20:00</option>
       <option name="comment"  >Performance test</option>
     </options>
   </test>
-  <test name="ERS_Ld5" grid="f10_f10_mg37" compset="I2000Clm50BgcCru" testmods="mosart/default">
-    <machines>
-      <machine name="derecho" compiler="intel" category="mosart"></machine>
-      <machine name="betzy" compiler="intel" category="mosart_noresm"></machine>
-    </machines>
-    <options>
-      <option name="wallclock">00:20:00</option>
-      <option name="comment"  >Restart test without DEBUG</option>
-    </options>
-  </test>
-  <test name="ERS_Ld5" grid="f10_f10_mg37" compset="I1850Clm50BgcCropG" testmods="mosart/default">
+  <test name="ERS_Ld5" grid="f10_f10_mg37" compset="I1850Clm60BgcCropG" testmods="mosart/default">
     <machines>
       <machine name="derecho" compiler="intel" category="mosart"></machine>
     </machines>
@@ -30,28 +23,30 @@
       <option name="comment"  >Restart test without DEBUG with CISM</option>
     </options>
   </test>
-  <test name="ERS_Ld5" grid="f10_f10_mg37" compset="I2000Clm50BgcCru" testmods="mosart/iceOff">
+  <test name="ERS_Ld5" grid="f10_f10_mg37" compset="I1850Clm60Sp" testmods="mosart/iceOff">
     <machines>
       <machine name="derecho" compiler="intel" category="mosart"></machine>
       <machine name="betzy" compiler="intel" category="mosart_noresm"></machine>
     </machines>
     <options>
       <option name="wallclock">00:20:00</option>
+      <option name="comment"  >Restart test without DEBUG with ice flow off</option>
     </options>
   </test>
-  <test name="SMS_Ld5" grid="f10_f10_mg37" compset="I2000Clm50BgcCrop" testmods="mosart/mosartCold">
+  <test name="SMS_Ld5" grid="f10_f10_mg37" compset="I1850Clm60Sp" testmods="mosart/mosartCold">
     <machines>
       <machine name="derecho" compiler="intel" category="mosart"></machine>
       <machine name="betzy" compiler="intel" category="mosart_noresm"></machine>
     </machines>
     <options>
       <option name="wallclock">00:20:00</option>
-      <option name="comment"  >Run a Cold-Start with all machine/compilers</option>
+      <option name="comment"  >Run a Cold-Start with main machine and all compilers</option>
     </options>
   </test>
-  <test name="SMS_Lh3" grid="f10_f10_mg37" compset="I2000Clm50BgcCru" testmods="mosart/mosartOff">
+  <test name="SMS_Lh3" grid="f10_f10_mg37" compset="I1850Clm60Sp" testmods="mosart/mosartOff">
     <machines>
       <machine name="derecho" compiler="intel" category="mosart"></machine>
+      <machine name="izumi" compiler="gnu" category="mosart"></machine>
       <machine name="betzy" compiler="intel" category="mosart_noresm"></machine>
     </machines>
     <options>
@@ -59,27 +54,32 @@
       <option name="comment"  >Test with MOSART turned off</option>
     </options>
   </test>
-  <test name="SMS_Lh3" grid="f10_f10_mg37" compset="I2000Clm51Sp" testmods="mosart/clmAccelSpinupIgnoreWarn">
+  <test name="SMS_Lh3" grid="f10_f10_mg37" compset="I1850Clm60Sp" testmods="mosart/clmAccelSpinupIgnoreWarn">
     <machines>
       <machine name="derecho" compiler="intel" category="mosart"></machine>
       <machine name="betzy" compiler="intel" category="mosart_noresm"></machine>
     </machines>
     <options>
       <option name="wallclock">00:20:00</option>
-      <option name="comment"  >Test with CLM accelerated spinup, but ignore warnigns so it will send a warning but still run</option>
+      <option name="comment"  >Test with CLM accelerated spinup, but ignore warnings so it will send a warning but still run</option>
     </options>
   </test>
-  <test name="SMS_D_Ld5" grid="f10_f10_mg37" compset="I1850Clm50Bgc" testmods="mosart/default">
+  <test name="SMS_D_Ld5" grid="f10_f10_mg37" compset="I1850Clm60Sp" testmods="mosart/default">
     <machines>
+      <machine name="derecho" compiler="intel" category="mosart"></machine>
+      <machine name="derecho" compiler="gnu" category="mosart"></machine>
+      <machine name="derecho" compiler="nvhpc" category="mosart"></machine>
       <machine name="betzy" compiler="intel" category="mosart_noresm"></machine>
       <machine name="izumi" compiler="nag" category="mosart"></machine>
+      <machine name="izumi" compiler="intel" category="mosart"></machine>
+      <machine name="izumi" compiler="gnu" category="mosart"></machine>
     </machines>
     <options>
       <option name="wallclock">00:20:00</option>
       <option name="comment"  >Smoke test with DEBUG on all machines/compilers</option>
     </options>
   </test>
-  <test name="SMS_D" grid="f10_f10_mg37" compset="I1850Clm50Bgc" testmods="mosart/decompOpts">
+  <test name="SMS_D" grid="f10_f10_mg37" compset="I1850Clm60Sp" testmods="mosart/decompOpts">
     <machines>
       <machine name="derecho" compiler="intel" category="mosart"></machine>
       <machine name="betzy" compiler="intel" category="mosart_noresm"></machine>
@@ -89,36 +89,40 @@
       <option name="comment"  >decompOpts are not bit for bit on PE layout change</option>
     </options>
   </test>
-  <test name="SMS_D" grid="f10_f10_mg37" compset="I1850Clm50Bgc" testmods="mosart/passChannelDepths">
+  <test name="SMS_D" grid="f10_f10_mg37" compset="I1850Clm60Sp" testmods="mosart/passChannelDepths">
     <machines>
       <machine name="derecho" compiler="intel" category="mosart"></machine>
       <machine name="betzy" compiler="intel" category="mosart_noresm"></machine>
+      <machine name="izumi" compiler="nag" category="mosart"></machine>
     </machines>
     <options>
       <option name="wallclock">00:20:00</option>
       <option name="comment"  >Pass channel depths needed for hillslope model</option>
     </options>
   </test>
-  <test name="ERP_D" grid="f10_f10_mg37" compset="I1850Clm50Bgc" testmods="mosart/qgrwlOpts">
+  <test name="ERP_D" grid="f10_f10_mg37" compset="I1850Clm60Sp" testmods="mosart/qgrwlOpts">
     <machines>
       <machine name="derecho" compiler="intel" category="mosart"></machine>
       <machine name="betzy" compiler="intel" category="mosart_noresm"></machine>
+      <machine name="izumi" compiler="nag" category="mosart"></machine>
     </machines>
     <options>
       <option name="wallclock">00:20:00</option>
+      <option name="comment"  >Exact restart test changing processor count with DEBUG on</option>
     </options>
   </test>
-  <test name="PEM_D" grid="f10_f10_mg37" compset="I1850Clm50Sp" testmods="mosart/inplacethreshold">
+  <test name="PEM_D" grid="f10_f10_mg37" compset="I1850Clm60Sp" testmods="mosart/inplacethreshold">
     <machines>
       <machine name="derecho" compiler="intel" category="mosart"></machine>
       <machine name="betzy" compiler="intel" category="mosart_noresm"></machine>
+      <machine name="izumi" compiler="nag" category="mosart"></machine>
     </machines>
     <options>
       <option name="wallclock">00:20:00</option>
-      <option name="comment"  >Set direct_in_place for threshold negative flow</option>
+      <option name="comment"  >Change the processor count and set direct_in_place for threshold negative flow</option>
     </options>
   </test>
-  <test name="SMS" grid="f10_f10_mg37" compset="I1850Clm50Sp" testmods="mosart/nobypass">
+  <test name="SMS" grid="f10_f10_mg37" compset="I1850Clm60Sp" testmods="mosart/nobypass">
     <machines>
       <machine name="derecho" compiler="intel" category="mosart"></machine>
       <machine name="betzy" compiler="intel" category="mosart_noresm"></machine>
diff --git a/src/cpl/nuopc/rof_import_export.F90 b/src/cpl/nuopc/rof_import_export.F90
index 80cc7c7..08dbc60 100644
--- a/src/cpl/nuopc/rof_import_export.F90
+++ b/src/cpl/nuopc/rof_import_export.F90
@@ -113,8 +113,10 @@ subroutine advertise_fields(gcomp, flds_scalar_name, rc)
     call fldlist_add(fldsToRof_num, fldsToRof, 'Flrl_rofsub')
     call fldlist_add(fldsToRof_num, fldsToRof, 'Flrl_rofi')
     call fldlist_add(fldsToRof_num, fldsToRof, 'Flrl_irrig')
-    call fldlist_add(fldsToRof_num, fldsToRof, 'Fgrg_rofl') ! liq runoff from glc
-    call fldlist_add(fldsToRof_num, fldsToRof, 'Fgrg_rofi') ! ice runoff from glc
+    if ( ctl%rof_from_glc ) then
+       call fldlist_add(fldsToRof_num, fldsToRof, 'Fgrg_rofl') ! liq runoff from glc
+       call fldlist_add(fldsToRof_num, fldsToRof, 'Fgrg_rofi') ! ice runoff from glc
+    end if
 
     do n = 1,fldsToRof_num
        call NUOPC_Advertise(importState, standardName=fldsToRof(n)%stdname, &
diff --git a/src/riverroute/mosart_control_type.F90 b/src/riverroute/mosart_control_type.F90
index 672613f..095d1f1 100644
--- a/src/riverroute/mosart_control_type.F90
+++ b/src/riverroute/mosart_control_type.F90
@@ -990,10 +990,12 @@ subroutine init_decomp(this, locfn, decomp_option, use_halo_option, &
        endif
        pid = max(pid,0)
        pid = min(pid,npes-1)
+#ifndef NDEBUG
        if (iam == pid) then
           write(iulog,'(2a,i9,a,i9,a,i9,a,i9)')' mosart decomp info',&
                ' proc = ',iam,' begr = ',begr,' endr = ',endr,' numr = ',lnumr
        endif
+#endif
        call mpi_barrier(mpicom_rof,ier)
     enddo