#include <ANN/ANN.h>
#include <ANN/ANNperf.h>

Functions
void	annResetStats (int data_size)
void	annResetCounts ()
void	annUpdateStats ()
void	print_one_stat (const char *title, ANNsampStat s, double div)
void	annPrintStats (ANNbool validate)
Variables
int	ann_Ndata_pts = 0
int	ann_Nvisit_lfs = 0
int	ann_Nvisit_spl = 0
int	ann_Nvisit_shr = 0
int	ann_Nvisit_pts = 0
int	ann_Ncoord_hts = 0
int	ann_Nfloat_ops = 0
ANNsampStat	ann_visit_lfs
ANNsampStat	ann_visit_spl
ANNsampStat	ann_visit_shr
ANNsampStat	ann_visit_nds
ANNsampStat	ann_visit_pts
ANNsampStat	ann_coord_hts
ANNsampStat	ann_float_ops
ANNsampStat	ann_average_err
ANNsampStat	ann_rank_err

Function Documentation

void annPrintStats ( ANNbool validate )

Definition at line 114 of file perf.cpp.

References ann_average_err, ann_coord_hts, ann_float_ops, ann_Ndata_pts, ann_rank_err, ann_visit_lfs, ann_visit_nds, ann_visit_pts, ann_visit_shr, ann_visit_spl, and print_one_stat().

{
        cout.precision(4);                                      // set floating precision
        cout << "  (Performance stats: "
                 << " [      mean :    stddev ]<      min ,       max >\n";
        print_one_stat("    leaf_nodes       ", ann_visit_lfs, 1);
        print_one_stat("    splitting_nodes  ", ann_visit_spl, 1);
        print_one_stat("    shrinking_nodes  ", ann_visit_shr, 1);
        print_one_stat("    total_nodes      ", ann_visit_nds, 1);
        print_one_stat("    points_visited   ", ann_visit_pts, 1);
        print_one_stat("    coord_hits/pt    ", ann_coord_hts, ann_Ndata_pts);
        print_one_stat("    floating_ops_(K) ", ann_float_ops, 1000);
        if (validate) {
                print_one_stat("    average_error    ", ann_average_err, 1);
                print_one_stat("    rank_error       ", ann_rank_err, 1);
        }
        cout.precision(0);                                      // restore the default
        cout << "  )\n";
        cout.flush();
}

void annResetCounts ( )

Definition at line 83 of file perf.cpp.

References ann_Ncoord_hts, ann_Nfloat_ops, ann_Nvisit_lfs, ann_Nvisit_pts, ann_Nvisit_shr, and ann_Nvisit_spl.

{
        ann_Nvisit_lfs = 0;
        ann_Nvisit_spl = 0;
        ann_Nvisit_shr = 0;
        ann_Nvisit_pts = 0;
        ann_Ncoord_hts = 0;
        ann_Nfloat_ops = 0;
}

void annResetStats ( int data_size )

Definition at line 69 of file perf.cpp.

References ann_average_err, ann_coord_hts, ann_float_ops, ann_Ndata_pts, ann_rank_err, ann_visit_lfs, ann_visit_nds, ann_visit_pts, ann_visit_shr, ann_visit_spl, and ANNsampStat::reset().

{
        ann_Ndata_pts  = data_size;
        ann_visit_lfs.reset();
        ann_visit_spl.reset();
        ann_visit_shr.reset();
        ann_visit_nds.reset();
        ann_visit_pts.reset();
        ann_coord_hts.reset();
        ann_float_ops.reset();
        ann_average_err.reset();
        ann_rank_err.reset();
}

void annUpdateStats ( )

Definition at line 93 of file perf.cpp.

References ann_coord_hts, ann_float_ops, ann_Ncoord_hts, ann_Nfloat_ops, ann_Nvisit_lfs, ann_Nvisit_pts, ann_Nvisit_shr, ann_Nvisit_spl, ann_visit_lfs, ann_visit_nds, ann_visit_pts, ann_visit_shr, and ann_visit_spl.

{
        ann_visit_lfs += ann_Nvisit_lfs;
        ann_visit_nds += ann_Nvisit_spl + ann_Nvisit_lfs;
        ann_visit_spl += ann_Nvisit_spl;
        ann_visit_shr += ann_Nvisit_shr;
        ann_visit_pts += ann_Nvisit_pts;
        ann_coord_hts += ann_Ncoord_hts;
        ann_float_ops += ann_Nfloat_ops;
}

void print_one_stat	(	const char *	title,
		ANNsampStat	s,
		double	div
	)

Definition at line 105 of file perf.cpp.

References ANNsampStat::max(), ANNsampStat::mean(), ANNsampStat::min(), and ANNsampStat::stdDev().

Referenced by annPrintStats().

{
        cout << title << "= [ ";
        cout.width(9); cout << s.mean()/div                     << " : ";
        cout.width(9); cout << s.stdDev()/div           << " ]<";
        cout.width(9); cout << s.min()/div                      << " , ";
        cout.width(9); cout << s.max()/div                      << " >\n";
}