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/*
* speed.c
*
* by Gary Wong <gtw@gnu.org>, 2003
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 3 or later of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program 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. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: speed.c,v 1.34 2017/06/27 19:34:18 plm Exp $
*/
#include "config.h"
#if defined(USE_GTK)
#include "gtkgame.h"
#else
#include "backgammon.h"
#endif
#if defined(USE_MULTITHREAD)
#include "multithread.h"
#endif
#ifndef WIN32
#include <stdlib.h>
#endif
#include "lib/isaac.h"
#include "lib/simd.h"
#define EVALS_PER_ITERATION 1024
static randctx rc;
static double timeTaken;
static void
RunEvals(void *UNUSED(notused))
{
int aanBoard[EVALS_PER_ITERATION][2][25];
int i, j, k;
double t;
SSE_ALIGN(float ar[NUM_OUTPUTS]);
#if defined(USE_MULTITHREAD)
MT_Exclusive();
#endif
for (i = 0; i < EVALS_PER_ITERATION; i++) {
/* Generate a random board. Don't allow chequers on the bar
* or borne off, so we can trivially guarantee the position
* is legal. */
for (j = 0; j < 25; j++)
aanBoard[i][0][j] = aanBoard[i][1][j] = 0;
for (j = 0; j < 15; j++) {
do {
k = irand(&rc) % 24;
} while (aanBoard[i][1][23 - k]);
aanBoard[i][0][k]++;
do {
k = irand(&rc) % 24;
} while (aanBoard[i][0][23 - k]);
aanBoard[i][1][k]++;
}
}
#if defined(USE_MULTITHREAD)
MT_Release();
MT_SyncStart();
#else
t = get_time();
#endif
for (i = 0; i < EVALS_PER_ITERATION; i++) {
(void) EvaluatePosition(NULL, (ConstTanBoard) aanBoard[i], ar, &ciCubeless, NULL);
}
#if defined(USE_MULTITHREAD)
if ((t = MT_SyncEnd()) != 0)
timeTaken += t;
#else
timeTaken += (get_time() - t);
#endif
}
extern void
CommandCalibrate(char *sz)
{
int n = -1;
unsigned int i, iIter, iCacheSize;
#if defined(USE_GTK)
void *pcc = NULL;
#endif
iCacheSize = GetEvalCacheEntries();
EvalCacheResize(0);
#if defined(USE_MULTITHREAD)
MT_SyncInit();
#endif
if (sz && *sz) {
n = ParseNumber(&sz);
if (n < 1) {
outputl(_("If you specify a parameter to `calibrate', " "it must be a number of iterations to run."));
return;
}
}
if (clock() == (clock_t) - 1) {
outputl(_("Calibration not available."));
return;
}
rc.randrsl[0] = (ub4) time(NULL);
for (i = 0; i < RANDSIZ; i++)
rc.randrsl[i] = rc.randrsl[0];
irandinit(&rc, TRUE);
#if defined(USE_GTK)
if (fX)
pcc = GTKCalibrationStart();
#endif
timeTaken = 0.0;
for (iIter = 0; n < 0 || iIter < (unsigned int) n;) {
double spd;
if (fInterrupt)
break;
#if defined(USE_MULTITHREAD)
mt_add_tasks(MT_GetNumThreads(), RunEvals, NULL, NULL);
(void) MT_WaitForTasks(NULL, 0, FALSE);
iIter += MT_GetNumThreads();
#else
RunEvals(NULL);
iIter++;
#endif
if (timeTaken <= 0.0)
spd = 0.0;
else
spd = iIter * (EVALS_PER_ITERATION * 1000 / timeTaken);
#if defined(USE_GTK)
if (fX)
GTKCalibrationUpdate(pcc, (float) spd);
else
#endif
if (fShowProgress) {
outputf(" \rCalibrating: %.0f static evaluations/second", spd);
fflush(stdout);
}
}
EvalCacheResize(iCacheSize);
#if defined(USE_GTK)
if (fX)
GTKCalibrationEnd(pcc);
#endif
if (timeTaken > 0.0) {
rEvalsPerSec = iIter * (float) (EVALS_PER_ITERATION * 1000 / timeTaken);
outputf("\rCalibration result: %.0f static evaluations/second.\n", rEvalsPerSec);
} else
outputl(_("Calibration incomplete."));
}
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