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/*
* vim: ts=4 sw=4 et tw=0 wm=0
*
* libavoid - Fast, Incremental, Object-avoiding Line Router
*
* Copyright (C) 2004-2013 Monash University
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* See the file LICENSE.LGPL distributed with the library.
*
* Licensees holding a valid commercial license may use this file in
* accordance with the commercial license agreement provided with the
* library.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* Author(s): Michael Wybrow
*/
#include <cstdio>
#include <cstdlib>
#include <climits>
#include "libavoid/timer.h"
#include "libavoid/debug.h"
#include "libavoid/assertions.h"
namespace Avoid {
#ifdef AVOID_PROFILE
Timer::Timer()
{
reset();
}
void Timer::reset(void)
{
for (size_t i = 0; i < tmCount; ++i)
{
m_total_time[i] = 0;
m_tally[i] = 0;
m_max_time[i] = 0;
for (size_t j = 0; j < TIMER_VARIABLES_COUNT; ++j)
{
m_variables[i][j] = 0;
}
}
m_is_running = false;
m_type = m_last_type = tmCount;
}
void Timer::initialise(const TimerIndex t)
{
COLA_ASSERT(t != tmCount);
COLA_ASSERT(m_type == tmCount);
m_type = t;
}
void Timer::start(void)
{
COLA_ASSERT(!m_is_running);
m_start_time[m_type] = clock(); // CPU time
m_is_running = true;
}
void Timer::stop(void)
{
COLA_ASSERT(m_is_running);
clock_t stopTime = clock(); // CPU time
m_is_running = false;
bigclock_t timeDiff;
if (stopTime < m_start_time[m_type])
{
// Uh-oh, the clock value has wrapped around.
//
bigclock_t realStopTime = ((bigclock_t) stopTime) + ULONG_MAX + 1;
timeDiff = realStopTime - m_start_time[m_type];
}
else
{
timeDiff = stopTime - m_start_time[m_type];
}
COLA_ASSERT(timeDiff < LONG_MAX);
m_total_time[m_type] += timeDiff;
m_tally[m_type]++;
if (((clock_t) timeDiff) > m_max_time[m_type])
{
m_max_time[m_type] = (clock_t) timeDiff;
}
m_last_type = m_type;
m_type = tmCount;
}
static const char* timerNames[] =
{
"Adds",
"Dels",
"Movs",
"Pths",
"OrthogGraph",
"OrthogRoute",
"OrthogCentre",
"OrthogNudge",
"HyperedgeForest",
"HyperedgeMTST",
"HyperedgeImprove",
"HyperedgeAlt"
};
void Timer::printAll(FILE *fp)
{
for (unsigned int i = 0; i < tmCount; i++)
{
fprintf(fp, "%s: ", timerNames[i]);
print((TimerIndex) i, fp);
}
fprintf(fp, "\n");
}
#define toMsec(tot) ((bigclock_t) ((tot) / (((double) CLOCKS_PER_SEC) / 1000)))
#define toAvg(tot, cnt) ((((cnt) > 0) ? ((long double) (tot)) / (cnt) : 0))
void Timer::printHyperedgePaper(FILE *fp)
{
fprintf(fp, "%5lld & %5lld & %5lld & %5lld\n\n",
toMsec(m_total_time[tmOrthogGraph]),
toMsec(m_total_time[tmHyperedgeForest] + m_total_time[tmHyperedgeMTST]),
toMsec(m_total_time[tmHyperedgeAlt]),
toMsec(m_total_time[tmHyperedgeImprove]));
}
void Timer::print(const TimerIndex t, FILE *fp)
{
bigclock_t avg = toMsec(toAvg(m_total_time[t], m_tally[t]));
clock_t max = toMsec(m_max_time[t]);
fprintf(fp, "%lld %d %lld %ld",
toMsec(m_total_time[t]), m_tally[t], avg, max);
for (size_t j = 0; j < TIMER_VARIABLES_COUNT; ++j)
{
if (m_variables[t][j] > 0)
{
fprintf(fp, ", %lu: %u", j, m_variables[t][j]);
}
}
fprintf(fp, "\n");
}
void Timer::varIncrement(size_t i, unsigned int val)
{
COLA_ASSERT(i < TIMER_VARIABLES_COUNT);
if (m_is_running)
{
m_variables[m_type][i] += val;
}
}
void Timer::varMax(size_t i, unsigned int val)
{
COLA_ASSERT(i < TIMER_VARIABLES_COUNT);
if (m_is_running)
{
m_variables[m_type][i] = std::max(m_variables[m_type][i], val);
}
}
#endif
}
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