sub logMergeManager
{
        my $writeCounter = $_[0];
        #a trick for implementing logarithmic merging

        $level = 1;
        for(my $ct = 2; $ct <= $writeCounter; $ct*=2)
        {
                if($writeCounter%$ct == ($ct -1) && $writeCounter > 0)
                {
                        push(@forkArray, $level);
                        push(@forkArray, $writeCounter);
                        my $nextMerge = ($ct/2);
                        push(@forkArray, $nextMerge);

                }
                else
                {
                        last;
                }

                $level++;
        }
        if(fork())
        {
                for(my $ct = 0; $ct <= $#forkArray; $ct+=3)
                {
                        my $level = $forkArray[$ct];
                        my $mergeLast = $forkArray[$ct+1];
                        my $mergeFirst = $forkArray[$ct+2];
                        my $dir = '/data/c6/indexes/';
                        my $name2 = $dir.$level."_indexBlock_".$mergeLast;
                        my $name1 = $dir.$level."_indexBlock_".$mergeFirst;
                        exec "./indexes/merge2.pl $name1 $name2";
                }
        }

}