place files into /dev/shm by default, prettify xml, more useful run.sh output

run.sh

@@ -1,4 +1,4 @@
-#!/bin/sh -ex
+#!/bin/sh -e
 
 if [ $# -ne 3 ]; then
 	echo usage: $0 order.xml packlist.xml scoring.xml
@@ -7,12 +7,30 @@ fi
 
 rm -f score_max
 
+# place temporary files in tmpfs instead of disk
+if [ -d /dev/shm ]; then
+	export TMPDIR=/dev/shm
+fi
+
+# generate the results
 python bruteforce2.py $1 | sort -r | xargs --max-procs=4 --max-args=1 python bruteforce3.py $1 $2 $3
 
+# format the result nicely
+if type xmllint > /dev/null 2>&1; then
 	mv $2 $2.tmp
 	xmllint --output $2 --format $2.tmp
 	rm -f $2.tmp
+fi
 
+echo
+echo maximum score is: `cat score_max`
+echo
+echo final packlist is ready in: $2
+echo
+echo to view it in palletViewer, run:
+echo
 echo palletViewer -o $1 -p $2 -s $3
-
+echo
+echo to check the final score, run:
+echo
 echo python evaluate.py $1 $2 $3