Add the new 2-degree grid: tx2_0v1

.gitmodules

@@ -2,7 +2,7 @@
   path = MOM6
   url = https://github.com/NCAR/MOM6.git
   fxDONOTUSEurl = https://github.com/NCAR/MOM6.git
-    fxtag = dev/ncar_260504
+    fxtag = dev/ncar_260624
     fxrequired = AlwaysRequired
 
 [submodule "stochastic_physics"]

cime_config/config_component.xml

@@ -75,6 +75,7 @@
     <values>
       <value grid="oi%tx2_3v2">hycom1</value>
       <value grid="oi%tx2_3v3">hycom1</value>
+      <value grid="oi%tx2_0v1">hycom1</value>
       <value grid="oi%tx0.25v1">hycom1</value>
       <value grid="oi%MISOMIP">sigma_shelf_zstar</value>
     </values>

cime_config/config_pes.xml

@@ -413,6 +413,44 @@
     </mach>
   </grid>
 
+  <grid name="a%(TL319|T62).+oi%tx2_0v1">
+    <mach name="derecho">
+      <pes pesize="any" compset="any">
+        <comment>tx2_0v1 (2-deg): ocn and ice on 128 PEs; ocean concurrent</comment>
+        <ntasks>
+          <ntasks_atm>128</ntasks_atm>
+          <ntasks_rof>128</ntasks_rof>
+          <ntasks_cpl>128</ntasks_cpl>
+          <ntasks_ice>128</ntasks_ice>
+          <ntasks_ocn>128</ntasks_ocn>
+          <ntasks_lnd>1</ntasks_lnd>
+          <ntasks_wav>128</ntasks_wav>
+          <ntasks_glc>1</ntasks_glc>
+        </ntasks>
+        <nthrds>
+          <nthrds_atm>1</nthrds_atm>
+          <nthrds_lnd>1</nthrds_lnd>
+          <nthrds_rof>1</nthrds_rof>
+          <nthrds_ice>1</nthrds_ice>
+          <nthrds_ocn>1</nthrds_ocn>
+          <nthrds_glc>1</nthrds_glc>
+          <nthrds_wav>1</nthrds_wav>
+          <nthrds_cpl>1</nthrds_cpl>
+        </nthrds>
+        <rootpe>
+          <rootpe_atm>0</rootpe_atm>
+          <rootpe_rof>0</rootpe_rof>
+          <rootpe_cpl>0</rootpe_cpl>
+          <rootpe_ice>0</rootpe_ice>
+          <rootpe_ocn>128</rootpe_ocn>
+          <rootpe_lnd>0</rootpe_lnd>
+          <rootpe_wav>0</rootpe_wav>
+          <rootpe_glc>0</rootpe_glc>
+        </rootpe>
+      </pes>
+    </mach>
+  </grid>
+
   <grid name="a%(TL319|T62).+oi%tx0.25v1">
     <mach name="derecho">
       <pes pesize="any" compset="any">

cime_config/testdefs/testlist_mom.xml

@@ -214,6 +214,17 @@
       <option name="wallclock">01:00:00</option>
     </options>
   </test>
+  <test name="ERS_Ld5" grid="TL319_t201" compset="GW_JRA">
+    <machines>
+      <machine name="derecho" compiler="intel" category="aux_mom"/>
+      <machine name="derecho" compiler="intel" category="pr_mom"/>
+      <machine name="derecho" compiler="intel" category="prealpha"/>
+      <machine name="derecho" compiler="intel" category="prebeta"/>
+    </machines>
+    <options>
+      <option name="wallclock">01:30:00</option>
+    </options>
+  </test>
   <!-- fast_mom: a test suite with coarse grids for fast feedback. -->
   <test name="SMS_D" grid="TL319_t232" compset="G_JRA_RYF" testmods="mom/tx3deg">
     <machines>