exp-drd/scripts/run-splash2

#!/bin/bash

########################
# Function definitions #
########################

# Read a stream of numbers from stdin (one per line), and print the average
# and standard deviation.
function avgstddev {
  awk '{n++;sum+=$1;sumsq+=$1*$1}END{print sum/n,sqrt(sumsq/n-sum*sum/n/n)}'
}

function run_test {
  local tmp avg1=1 stddev1=1 avg2=1 stddev2=1

  tmp="/tmp/test-timing.$$"
  echo "$@"
  for ((i=0;i<3;i++))
  do
    /usr/bin/time --format="%e" "$@" 2>&1 | tail -n 1
  done | avgstddev > "$tmp"
  read avg1 stddev1 < "$tmp"
  echo "Average time: ${avg1} +/- ${stddev1} seconds"

  echo "$VG --tool=exp-drd $@"
  for ((i=0;i<3;i++))
  do
    /usr/bin/time --format="%e" $VG --tool=exp-drd "$@" 2>&1 | tail -n 1
  done | avgstddev > "$tmp"
  read avg2 stddev2 < "$tmp"
  echo "Average time: ${avg2} +/- ${stddev2} seconds"

  awk "END{print "'"'"Ratio ="'"'", ${avg2}/${avg1}, "'"'"+/-"'"'", ${avg2}/${avg1}*(${stddev1}/${avg1}+${stddev2}/${avg2})}" </dev/null

  echo ''

  rm -f "$tmp"
}


# Script body

if [ ! -e splash2 ]; then
  echo "Error: splash2 directory not found."
  exit 1
fi

if [ "$VG" = "" ]; then
  VG=../vg-in-place
fi

if [ ! -e "$VG" ]; then
  echo "Could not find $VG."
  exit 1
fi

# run_test splash2/codes/apps/barnes/BARNES

# lu, contiguous blocks: slowdown about 41 (-p1 -n1024). ITC: 230.
run_test splash2/codes/kernels/lu/contiguous_blocks/LU -p1 -n1024
run_test splash2/codes/kernels/lu/contiguous_blocks/LU -p2 -n1024

# lu, non-contiguous blocks: slowdown about 37 (-p1 -n1024). ITC: 230.
run_test splash2/codes/kernels/lu/non_contiguous_blocks/LU -p1 -n1024
run_test splash2/codes/kernels/lu/non_contiguous_blocks/LU -p2 -n1024

# radiosity: slowdown about 999 because of the large number of mutex operations.
# ITC: 420.
run_test splash2/codes/apps/radiosity/RADIOSITY -p1 -batch -room
run_test splash2/codes/apps/radiosity/RADIOSITY -p2 -batch -room