.
// tool for estimating FLOPS per job for a given app
error_reporting(E_ALL);
ini_set('display_errors', true);
ini_set('display_startup_errors', true);
require_once("../inc/db.inc");
require_once("../inc/util_ops.inc");
db_init();
$hist = array();
$quantum = 1e10;
$mean = 0;
$count = 0;
$varsum = 0;
function handle_result($result) {
global $hist;
global $quantum;
global $mean;
global $count;
global $varsum;
$flops = $result->elapsed_time * $result->flops_estimate;
//printf("%e
\n", $flops);
$n = (int) ($flops/$quantum);
if (!array_key_exists($n, $hist)) {
$hist[$n] = 0;
}
$hist[$n]++;
$count++;
$delta = $flops - $mean;
$mean += $delta/$count;
$varsum += $delta*($flops-$mean);
}
function show_stats() {
global $mean;
global $count;
global $varsum;
global $sum;
$stdev = sqrt($varsum/($count-1));
printf("mean: %e
stdev: %e
samples: %d", $mean, $stdev, $count);
}
function show_stats_hist() { //deprecated
global $hist;
global $quantum;
$sum = 0;
$n = 0;
foreach ($hist as $i=>$v) {
$sum += $quantum*$i*$v;
$n += $v;
}
$mean = $sum/$n;
echo "mean: ";
printf("%e", $mean);
$sum = 0;
foreach ($hist as $i=>$v) {
$d = ($mean - $quantum*$i);
$sum += $d*$d*$v;
}
$stdev = sqrt($sum/$n);
echo "
stdev: ";
printf("%e", $stdev);
}
function show_as_xml() {
global $hist;
global $quantum;
echo "";
foreach ($hist as $i=>$v) {
echo "<bin>
<value>";
printf("%e", $quantum*$i);
echo "</value>
<count>$v</count>
</bin>
";
}
echo "";
}
function show_as_table() {
global $quantum;
global $hist;
echo "";
$keys = array_keys($hist);
$start = reset($keys);
$end = end($keys);
$max = $hist[$start];
foreach ($hist as $v) {
if ($v > $max) $max = $v;
}
for ($i=$start; $i<=$end; $i++) {
if (array_key_exists($i, $hist)) {
$w = 600*$hist[$i]/$max;
} else {
$w = 0;
}
$f = $i*$quantum;
echo "| ";
printf("%e ", $f);
echo " |  |
\n";
}
echo "
";
}
function version_select($appid) {
$x = "\n";
return $x;
}
function analyze($appid, $app_version_id, $nresults) {
global $hist;
$clause = $app_version_id?" and app_version_id = $app_version_id ":"";
$query = "select id, server_state, outcome, elapsed_time, flops_estimate from result where server_state=5 and appid=$appid and outcome=1 and validate_state=1 $clause order by id desc limit $nresults";
$r = mysql_query($query);
$n = 0;
while ($result = mysql_fetch_object($r)) {
handle_result($result);
$n++;
}
if (!$n) {
echo "No done results for that app";
exit;
}
ksort($hist);
show_stats($hist);
echo "
\n";
show_as_table();
echo "
\n";
show_as_xml();
}
function show_app_select() {
admin_page_head("Show FLOPS distribution");
echo "Select an application:
";
admin_page_tail();
}
if (get_str('submit', true)=='OK') {
set_time_limit(0);
$appid = get_int('appid');
$app_version_id = get_int('app_version_id');
$quantum = (double)(get_str('quantum'));
$nresults = get_int('nresults');
analyze($appid, $app_version_id, $nresults);
} else {
$appid = get_int('appid', true);
if ($appid) {
show_form($appid);
} else {
show_app_select();
}
}
?>