run_wf.sh | $KEEP_TMP | -b

[cymon]

199 if [[ $KEEP_TMP != "" ]];
200 then
201 echo "Keep temporary output directory."
202 mv ${TMPDIR} ${CWD}
203 else
204 rm -rf ${TMPDIR}
205 fi

Copying to the CWD means that multiple runs launched from the same mgf install fail when they all try to write to the same dir.