source: trunk/web/addons/toga/overview.php @ 115

<?php

$my_dir = getcwd();

include_once "./libtoga.php";

global $GANGLIA_PATH;
chdir( $GANGLIA_PATH );
include_once "./class.TemplatePower.inc.php";
chdir( $my_dir );

$httpvars = new HTTPVariables( $HTTP_GET_VARS );
$clustername = $httpvars->getClusterName();

$data_gatherer = new DataGatherer();

$tpl = new TemplatePower("templates/overview.tpl");
$tpl->prepare();

$tpl->assign( "clusterimage", "./image.php?c=".$clustername."&view=big-clusterimage" );

$data_gatherer->parseXML();
$heartbeat = $data_gatherer->getHeartbeat();
$jobs = $data_gatherer->getJobs();
$nodes = $data_gatherer->getNodes();

$tpl->assign("heartbeat", makeDate( $heartbeat ) );

$pie = drawPie();
$tpl->assign("pie", $pie );

function makeTime( $time ) {

        $days = intval( $time / 86400 );
        $time = $days ? $time % ($days * 86400) : $time;

        if( $days > 0 ) {
                if( $days > 1 )
                        $date_str .= $days . 'days - ';
                else
                        $date_str .= $days . 'day - ';
        }

        $hours = intval( $time / 3600 );
        $time = $hours ? $time % ($hours * 3600) : $time;

        if( $hours > 0 ) {
                $date_str .= $hours . ':';
                $date_unit = ' hours';
        }
                
        $minutes = intval( $time / 60 );
        $seconds = $minutes ? $time % ($minutes * 60) : $time;

        if( $minutes > 0 ) {

                if( $minutes >= 10 )
                        $date_str .= $minutes . ':';
                else
                        $date_str .= '0' . $minutes . ':';

                $date_unit = (!isset($date_unit)) ? 'minutes' : $date_unit;
        } else if( $days > 0 or $hours > 0 ) {
                $date_str .= '00:';
                $date_unit = (!isset($date_unit)) ? 'minutes' : $date_unit;
        }

        $date_unit = (!isset($date_unit)) ? 'seconds' : $date_unit;

        if( $seconds > 0 ) {

                if( $seconds >= 10 )
                        $date_str .= $seconds . ' ' . $date_unit;
                else
                        $date_str .= '0' . $seconds . ' ' . $date_unit;
                        
        } else if ( $days > 0 or $hours > 0 or $minutes > 0 )
                $date_str .= '00 ' . $date_unit;

        return $date_str;
}

function makeDate( $time ) {
        return strftime( "%a %d %b %Y %H:%M:%S", $time );
}

function colorRed( $color ) {
        return substr( $color, 0, 2 );
}
function colorGreen( $color ) {
        return substr( $color, 2, 2 );
}
function colorBlue( $color ) {
        return substr( $color, 4, 2 );
}

function colorDiffer( $first, $second ) {

        // Make sure these two colors differ atleast 50 R/G/B
        $min_diff = 50;

        $c1r = decHex( colorRed( $first ) );
        $c1g = decHex( colorGreen( $first ) );
        $c1b = decHex( colorBlue( $first ) );

        $c2r = decHex( colorRed( $second ) );
        $c2g = decHex( colorGreen( $second ) );
        $c2b = decHex( colorBlue( $second ) );

        $rdiff = ($c1r >= $c2r) ? $c1r - $c2r : $c2r - $c1r;
        $gdiff = ($c1g >= $c2g) ? $c1g - $c2g : $c2g - $c1g;
        $bdiff = ($c1b >= $c2b) ? $c1b - $c2b : $c2b - $c1b;

        if( $rdiff >= $min_diff or $gdiff >= $min_diff or $bdiff >= $min_diff )
                return TRUE;
        else
                return FALSE;
}

function randomColor( $known_colors ) {

        $start = hexdec( "004E00" );
        $end = hexdec( "FFFFFF" );

        if( count( $known_colors ) == 0 )
                return dechex(rand( $start, $end ));

        $color_changed = TRUE;

        while( $color_changed ) {

                $color_changed = FALSE;

                foreach( $known_colors as $old ) {

                        if( !isset( $new ) )
                                $new = rand( $start, $end );

                        if( !colorDiffer( dechex( $new ), $old ) )

                                while( !colorDiffer( $new, $old ) ) {

                                        $new = rand( $start, $end );
                                        $color_changed = TRUE;
                                }
                }
        }

        // Whoa! Actually found a good color ;)
        return dechex( $new );
}

function drawPie() {

        global $jobs, $nodes;

        $pie_args = "title=" . rawurlencode("Cluster Jobload");
        $pie_args .= "&size=250x150";

        $queues = array();
        $nr_jobs = count( $jobs );
        $nr_nodes = count( $nodes );

        $emptynodes = 0;

        foreach( $nodes as $node ) {

                $myjobs = $node->getJobs();

                if( count( $myjobs ) == 0 )
                        $emptynodes++;
                else
                        $nodes_jobs = $nodes_jobs + count( $myjobs );
        }

        $empty_percentage = ($emptynodes / $nr_nodes) * 100;
        $job_percentage = 100 - $empty_percentage; 

        $color = randomColor( $qcolors );
        $qcolors[] = $color;
        $pie_args .= "&free=$empty_percentage,$color";

        foreach( $jobs as $jobid => $jobattrs ) {

                $qname = $jobattrs[queue];

                if( !array_search( $qname, $queues ) ) {

                        if( !isset( $queues[$qname] ) )
                                $queues[$qname] = array();

                        $queues[$qname][] = $jobid;
                }
        }

        $qcolors = array();
        foreach( $queues as $queue => $myjobs ) {

                $qjobs = count ( $myjobs );
                $percentage = ( $qjobs / $nr_jobs ) * $job_percentage;
                $color = randomColor( $qcolors );
                $qcolors[] = $color;
                $pie_args .= "&$queue=$percentage,$color";
        }
        $pie = "../../pie.php?$pie_args";

        return $pie;
}

foreach( $jobs as $jobid => $jobattrs ) {

        $report_time = $jobattrs[reported];

        if( $report_time == $heartbeat ) {

                $tpl->newBlock("node");
                $tpl->assign("id", $jobid );
                $tpl->assign("state", $jobattrs[status] );
                $tpl->assign("user", $jobattrs[owner] );
                $tpl->assign("queue", $jobattrs[queue] );
                $tpl->assign("name", $jobattrs[name] );
                $nodes = count( $jobattrs[nodes] );
                $ppn = (int) $jobattrs[ppn] ? $jobattrs[ppn] : 1;
                $cpus = $nodes * $ppn;
                $tpl->assign("cpus", $cpus );
                $tpl->assign("req_cpu", $jobattrs[requested_time] );
                $tpl->assign("req_memory", $jobattrs[requested_memory] );
                $tpl->assign("nodes", $nodes );
                $start_time = (int) $jobattrs[start_timestamp];
                $runningtime = makeTime( $report_time - $start_time );
                $tpl->assign("started", makeDate( $start_time ) );
                $tpl->assign("runningtime", $runningtime );
        }
}

$tpl->printToScreen();

?>