diff --git a/configuration/scripts/machines/env.ppp5_intel b/configuration/scripts/machines/env.ppp5_intel
index d1b1957ea..3ad39ed1d 100644
--- a/configuration/scripts/machines/env.ppp5_intel
+++ b/configuration/scripts/machines/env.ppp5_intel
@@ -20,6 +20,9 @@ source /fs/ssm/main/opt/ssmuse/ssmuse-1.11/ssmuse_1.11_all/bin/ssmuse-boot.csh >
 set ssmuse=`which ssmuse-csh`
 source $ssmuse -d main/opt/hdf5-netcdf4/serial/shared/inteloneapi-2022.1.2/01
 
+# OpenMP
+setenv OMP_STACKSIZE 64M
+
 endif
  
 setenv ICE_MACHINE_MACHNAME ppp5
diff --git a/configuration/scripts/machines/env.ppp6_intel b/configuration/scripts/machines/env.ppp6_intel
index 7aab171d4..e5deb7ffe 100644
--- a/configuration/scripts/machines/env.ppp6_intel
+++ b/configuration/scripts/machines/env.ppp6_intel
@@ -20,6 +20,9 @@ source /fs/ssm/main/opt/ssmuse/ssmuse-1.11/ssmuse_1.11_all/bin/ssmuse-boot.csh >
 set ssmuse=`which ssmuse-csh`
 source $ssmuse -d main/opt/hdf5-netcdf4/serial/shared/inteloneapi-2022.1.2/01
 
+# OpenMP
+setenv OMP_STACKSIZE 64M
+
 endif
  
 setenv ICE_MACHINE_MACHNAME ppp6
diff --git a/configuration/scripts/machines/env.robert_intel b/configuration/scripts/machines/env.robert_intel
index e7ed62193..97d914aab 100644
--- a/configuration/scripts/machines/env.robert_intel
+++ b/configuration/scripts/machines/env.robert_intel
@@ -20,6 +20,9 @@ source /fs/ssm/main/opt/ssmuse/ssmuse-1.11/ssmuse_1.11_all/bin/ssmuse-boot.csh >
 set ssmuse=`which ssmuse-csh`
 source $ssmuse -d main/opt/hdf5-netcdf4/serial/shared/inteloneapi-2022.1.2/01
 
+# OpenMP
+setenv OMP_STACKSIZE 64M
+
 endif
  
 setenv ICE_MACHINE_MACHNAME robert
diff --git a/configuration/scripts/machines/env.underhill_intel b/configuration/scripts/machines/env.underhill_intel
index 4391ea0cf..7f15c4d0d 100644
--- a/configuration/scripts/machines/env.underhill_intel
+++ b/configuration/scripts/machines/env.underhill_intel
@@ -20,6 +20,9 @@ source /fs/ssm/main/opt/ssmuse/ssmuse-1.11/ssmuse_1.11_all/bin/ssmuse-boot.csh >
 set ssmuse=`which ssmuse-csh`
 source $ssmuse -d main/opt/hdf5-netcdf4/serial/shared/inteloneapi-2022.1.2/01
 
+# OpenMP
+setenv OMP_STACKSIZE 64M
+
 endif
  
 setenv ICE_MACHINE_MACHNAME underhill