RunSafelyAndStable.sh

   1 #!/bin/sh
   2 #
   3 # Program:  RunSafelyAndStable.sh
   4 #
   5 # Synopsis: This script runs another program three times by repeatedly
   6 #           invoking the RunSafely.sh script. It collects the timings of
   7 #           the program and reports the smallest one. The <outfile>.time
   8 #           file will reflect the time and result code of the fastest
   9 #           run.
  10 #
  11 # Syntax:
  12 #   ./RunSafelyAndStable.sh <ulimit> <exitok> <infile> <outfile> \
  13 #      <program> <args...>
  14 #
  15 #   See the RunSafely.sh script for more details.
  16 #
  17 DIR=${0%%`basename $0`}
  18 ULIMIT=$1
  19 EXITOK=$2
  20 INFILE=$3
  21 OUTFILE=$4
  22 PROGRAM=$5
  23 shift 5
  24
  25 # Run it the first time
  26 ${DIR}/RunSafely.sh $ULIMIT $EXITOK $INFILE $OUTFILE $PROGRAM $*
  27 exitval=$?
  28 mv $OUTFILE.time $OUTFILE.time1
  29 TIME1=`grep program $OUTFILE.time1 | sed 's/^program//'`
  30 echo "Program $PROGRAM run #1 time: $TIME1"
  31
  32 # Run it the second time
  33 ${DIR}/RunSafely.sh $ULIMIT $EXITOK $INFILE $OUTFILE $PROGRAM $*
  34 mv $OUTFILE.time $OUTFILE.time2
  35 TIME2=`grep program $OUTFILE.time2 | sed 's/^program//'`
  36 echo "Program $PROGRAM run #2 time: $TIME2"
  37
  38 # Run it the third time
  39 ${DIR}/RunSafely.sh $ULIMIT $EXITOK $INFILE $OUTFILE $PROGRAM $*
  40 mv $OUTFILE.time $OUTFILE.time3
  41 TIME3=`grep program $OUTFILE.time3 | sed 's/^program//'`
  42 echo "Program $PROGRAM run #3 time: $TIME3"
  43
  44 # Figure out which run had the smallest run time:
  45 SHORTEST=`echo -e "$TIME1 time1\n$TIME2 time2\n$TIME3 time3" | sort |
  46                 head -1 | sed "s|.*time||"`
  47
  48 echo "Program $PROGRAM run #$SHORTEST was fastest"
  49 cp $OUTFILE.time$SHORTEST $OUTFILE.time
  50
  51 exit $exitval