diff --git a/cime_config/config_pes.xml b/cime_config/config_pes.xml
index 417c6853..827aba4b 100644
--- a/cime_config/config_pes.xml
+++ b/cime_config/config_pes.xml
@@ -205,14 +205,14 @@
       <pes pesize="M" compset="_DATM.*_BLOM.*%ECO">
         <comment>none</comment>
         <ntasks>
-          <ntasks_atm>1</ntasks_atm>
-          <ntasks_rof>1</ntasks_rof>
-          <ntasks_ice>80</ntasks_ice>
-          <ntasks_ocn>431</ntasks_ocn>
-          <ntasks_cpl>81</ntasks_cpl>
-          <ntasks_lnd>1</ntasks_lnd>
-          <ntasks_glc>1</ntasks_glc>
-          <ntasks_wav>80</ntasks_wav>
+          <ntasks_atm>128</ntasks_atm>
+          <ntasks_rof>128</ntasks_rof>
+          <ntasks_ice>128</ntasks_ice>
+          <ntasks_ocn>374</ntasks_ocn>
+          <ntasks_cpl>128</ntasks_cpl>
+          <ntasks_lnd>128</ntasks_lnd>
+          <ntasks_glc>128</ntasks_glc>
+          <ntasks_wav>128</ntasks_wav>
         </ntasks>
         <nthrds>
           <nthrds_atm>1</nthrds_atm>
@@ -225,11 +225,11 @@
           <nthrds_cpl>1</nthrds_cpl>
         </nthrds>
         <rootpe>
-          <rootpe_atm>80</rootpe_atm>
-          <rootpe_lnd>80</rootpe_lnd>
-          <rootpe_rof>80</rootpe_rof>
+          <rootpe_atm>0</rootpe_atm>
+          <rootpe_lnd>0</rootpe_lnd>
+          <rootpe_rof>0</rootpe_rof>
           <rootpe_ice>0</rootpe_ice>
-          <rootpe_ocn>81</rootpe_ocn>
+          <rootpe_ocn>128</rootpe_ocn>
           <rootpe_glc>0</rootpe_glc>
           <rootpe_wav>0</rootpe_wav>
           <rootpe_cpl>0</rootpe_cpl>
@@ -433,7 +433,7 @@
 
 
   <!-- Configurations for running with CPLHIST output from NorESM2/3 !-->
-  
+
   <grid name="a%0.9x1.25.+oi%tnx1v4|a%1.9x2.5.+oi%tnx1v4">
     <mach name="any">
       <pes pesize="M" compset="_DATM%CPLHIST.*_BLOM">
@@ -471,7 +471,7 @@
       </pes>
     </mach>
   </grid>
-  
+
   <grid name="a%ne16np4.pg3.+oi%tnx1v4|a%ne30np4.pg3.+oi%tnx1v4">
     <mach name="betzy">
       <pes pesize="any" compset="_DATM%CPLHIST.*_BLOM">
diff --git a/cime_config/testdefs/testlist_blom.xml b/cime_config/testdefs/testlist_blom.xml
index 627e3454..c1fddefb 100644
--- a/cime_config/testdefs/testlist_blom.xml
+++ b/cime_config/testdefs/testlist_blom.xml
@@ -29,7 +29,7 @@
       <option name="comment">debug mode; 1 degree; hybrid coordinates; hamocc; IAF forcing</option>
     </options>
   </test>
-  <test name="SMS_D_Ld1" grid="T62_tn14" compset="NOIIAJRAOC1850">
+  <test name="SMS_D_Ld1" grid="T319_tn14" compset="NOIIAJRAOC1850">
     <machines>
       <machine name="betzy" compiler="intel" category="aux_blom_noresm"/>
     </machines>
@@ -38,7 +38,7 @@
       <option name="comment">debug mode; 1 degree; hybrid coordinates; hamocc; JRA forcing; 1850 clim</option>
     </options>
   </test>
-  <test name="SMS_D_Ld1" grid="T62_tn14" compset="NOIIAJRAOC20TR">
+  <test name="SMS_D_Ld1" grid="T319_tn14" compset="NOIIAJRAOC20TR">
     <machines>
       <machine name="betzy" compiler="intel" category="aux_blom_noresm"/>
     </machines>