add_lake_20200810: Run lake-maker code in parallel using

cfp (on WCOSS-Cray).

References ufs-community#111.

ush/fv3gfs_make_lake.sh

@@ -65,18 +65,35 @@ fi
 
 # create lake data for FV3 grid and save it to the orography files
 
-tile=$tile_beg
-while [ $tile -le $tile_end ]; do
-  outfile=oro.C${res}.tile${tile}.nc
-  $APRUN $exe_add_lake ${tile} ${res} ${indir} ${lake_cutoff}
+if [ $machine = WCOSS_C ]; then
+  touch ./lake.txt
+  tile=$tile_beg
+  while [ $tile -le $tile_end ]; do
+    echo "$exe_add_lake ${tile} ${res} ${indir} ${lake_cutoff}" >> ./lake.txt
+    tile=$(( $tile + 1 ))
+  done
+  aprun -j 1 -n 6 -N 6 -d 1 -cc depth cfp ./lake.txt
   err=$?
   if [ $err != 0 ]; then
     set +x
-    echo ERROR CREATING LAKE FRACTION FOR TILE $tile
+    echo ERROR CREATING LAKE FRACTION
     exit $err
   fi
-  echo "lake fraction is added to $outfile"
-  tile=$(( $tile + 1 ))
-done
+  rm ./lake.txt
+else
+  tile=$tile_beg
+  while [ $tile -le $tile_end ]; do
+    outfile=oro.C${res}.tile${tile}.nc
+    $APRUN $exe_add_lake ${tile} ${res} ${indir} ${lake_cutoff}
+    err=$?
+    if [ $err != 0 ]; then
+      set +x
+      echo ERROR CREATING LAKE FRACTION FOR TILE $tile
+      exit $err
+    fi
+    echo "lake fraction is added to $outfile"
+    tile=$(( $tile + 1 ))
+  done
+fi
 
 exit 0