289 lines
8.4 KiB
C
289 lines
8.4 KiB
C
/* perft-test.c - perft test.
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*
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* Copyright (C) 2024 Bruno Raoult ("br")
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* Licensed under the GNU General Public License v3.0 or later.
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* Some rights reserved. See COPYING.
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*
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* You should have received a copy of the GNU General Public License along with this
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* program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.html>.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <time.h>
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#include <locale.h>
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#include "chessdefs.h"
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#include "fen.h"
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#include "position.h"
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#include "move.h"
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#include "move-do.h"
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#include "move-gen.h"
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#include "search.h"
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#include "common-test.h"
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#define RD 0
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#define WR 1
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typedef struct {
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move_t move;
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int count;
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} ddperft;
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/**
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* return write pipd fd
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*/
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static FILE *open_stockfish()
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{
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int rpipe[2], wpipe[2];
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FILE *out_desc;
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pid_t pid;
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if ((pipe(rpipe) < 0) || (pipe(wpipe) < 0)) {
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perror("pipe");
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return NULL;
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}
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if ((pid = fork()) < 0) {
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perror("fork");
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return NULL;
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}
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if (!pid) { /* stockfish */
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setvbuf(stdin, NULL, _IOLBF, 0);
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setvbuf(stdout, NULL, _IOLBF, 0);
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setvbuf(stderr, NULL, _IOLBF, 0);
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dup2(wpipe[RD], STDIN_FILENO);
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dup2(rpipe[WR], STDOUT_FILENO);
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dup2(rpipe[WR], STDERR_FILENO);
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close(wpipe[RD]);
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close(wpipe[WR]);
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close(rpipe[RD]);
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close(rpipe[WR]);
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if (execlp("stockfish", "stockfish", NULL) == -1) {
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perror("execlp");
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return NULL;
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}
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return 0; /* not reached */
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}
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/* us */
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dup2(rpipe[RD], STDIN_FILENO);
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setvbuf(stdin, NULL, _IOLBF, 0);
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close(wpipe[RD]);
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close(rpipe[RD]);
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close(rpipe[WR]);
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out_desc = fdopen(wpipe[WR], "w");
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setvbuf(out_desc, NULL, _IOLBF, 0);
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return out_desc;
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}
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static u64 send_stockfish_fen(FILE *desc, pos_t *pos, movelist_t *movelist,
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char *fen, int depth)
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{
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char *buf = NULL;
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u64 count, mycount = 0, fishcount;
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size_t alloc = 0;
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ssize_t buflen;
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pos_clear(pos);
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move_t *moves = movelist->move;
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int *nmoves = &movelist->nmoves;
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*nmoves = 0;
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//char nodescount[] = "Nodes searched";
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//printf("nmoves = %d\n", nmoves);
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fflush(stdout);
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//sprintf(str, "stockfish \"position fen %s\ngo perft depth\n\"", fen);
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fprintf(desc, "position fen %s\ngo perft %d\n", fen, depth);
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//fflush(desc);
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while ((buflen = getline(&buf, &alloc, stdin)) > 0) {
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buf[--buflen] = 0;
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if (buflen == 0)
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continue;
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if (sscanf(buf, "Nodes searched: %lu", &fishcount) == 1) {
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break;
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}
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//printf("%d: %s\n", line++, buf);
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if (sscanf(buf, "%*4s: %lu", &count) == 1) {
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square_t from = sq_from_string(buf);
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square_t to = sq_from_string(buf + 2);
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mycount += count;
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//printf("move found: %c%c->%c%c %s->%s count=%d\n",
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// buf[0], buf[1], buf[2], buf[3],
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// sq_to_string(from), sq_to_string(to),
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// count);
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moves[(*nmoves)++] = move_make(from, to);
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} else if (sscanf(buf, "%*5s: %lu", &count) == 1) {
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square_t from = sq_from_string(buf);
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square_t to = sq_from_string(buf + 2);
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piece_type_t promoted = piece_t_from_char(*(buf + 4));
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mycount += count;
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//printf("move found: %c%c->%c%c %s->%s count=%d\n",
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// buf[0], buf[1], buf[2], buf[3],
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// sq_to_string(from), sq_to_string(to),
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// count);
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moves[(*nmoves)++] = move_make_promote(from, to, promoted);
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}
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}
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//pos->moves.nmoves = nmoves;
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// printf("fishcount=%d mycount=%d\n", fishcount, mycount);
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free(buf);
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return mycount;
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}
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static __unused bool movelists_equal(movelist_t *fish, movelist_t *me)
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{
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move_t *m1 = fish->move, *m2 = me->move;
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int n1 = fish->nmoves, n2 = me->nmoves;
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int mask = 077777;
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if (n1 != n2)
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return false;
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for (int cur = 0; cur < n1; ++cur) {
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if ((m1[cur] & mask) != (m2[cur] & mask))
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return false;
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}
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return true;
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}
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static __unused void compare_moves(movelist_t *fish, movelist_t *me)
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{
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char str1[1024] = {0}, str2[1024] = {0}, tmpstr[1024];
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char *skip = " ";
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move_t *m1 = fish->move;
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move_t *m2 = me->move;
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int n1 = fish->nmoves;
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int n2 = me->nmoves;
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#define f(c) move_from(c)
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#define t(c) move_to(c)
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for (move_t *c1 = m1, *c2 = m2; (c1 - m1 < n1) || (c2 - m2 < n2);) {
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// square_t f1 = move_from(*c1); square_t t1 = move_to(*c1);
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// square_t f2 = move_from(*c2); square_t t2 = move_to(*c2);
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/* no more move in c2 */
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if (c2 - m2 >= n2) {
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while (c1 - m1 < n1) {
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sprintf(tmpstr, " %s-%s", sq_to_string(f(*c1)), sq_to_string(t(*c1)));
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strcat (str1, tmpstr);
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c1++;
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}
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break;
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}
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if (c1 - m1 >= n1) {
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while (c2 - m2 < n2) {
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sprintf(tmpstr, " %s-%s", sq_to_string(f(*c2)), sq_to_string(t(*c2)));
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strcat (str2, tmpstr);
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c2++;
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}
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break;
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}
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/* missing move in c2 */
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if (f(*c1) < f(*c2) ||
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(f(*c1) == f(*c2) && t(*c1) < t(*c2))) {
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strcat(str2, skip);
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sprintf(tmpstr, " %s-%s", sq_to_string(f(*c1)), sq_to_string(t(*c1)));
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strcat (str1, tmpstr);
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while ((c1 - m1 < n1) && (f(*c1) < f(*c2) ||
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(f(*c1) == f(*c2) && t(*c1) < t(*c2)))) {
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c1++;
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}
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continue;
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}
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/* missing move in c1 */
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if (f(*c1) > f(*c2) ||
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(f(*c1) == f(*c2) && t(*c1) > t(*c2))) {
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strcat(str1, skip);
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sprintf(tmpstr, " %s-%s", sq_to_string(f(*c2)), sq_to_string(t(*c2)));
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strcat (str2, tmpstr);
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while ((c2 - m2 < n2) && (f(*c1) > f(*c2) ||
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(f(*c1) == f(*c2) && t(*c1) > t(*c2)))) {
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c2++;
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}
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continue;
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}
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sprintf(tmpstr, " %s-%s", sq_to_string(f(*c1)), sq_to_string(t(*c1)));
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strcat(str1, tmpstr);
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strcat(str2, tmpstr);
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c1++, c2++;
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}
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printf("F(%2d): %s\nM(%2d): %s\n", n1, str1, n2, str2);
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}
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int main(int __unused ac, __unused char**av)
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{
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int i = 0, test_line;
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u64 sf_count, my_count;
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char *fen;
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pos_t *pos, *savepos, *fishpos = pos_new();
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movelist_t fishmoves;
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//move_t move;
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FILE *outfd;
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int depth = 6;
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if (ac > 1)
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depth = atoi(av[1]);
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printf("depth = %d\n", depth);
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setlocale(LC_NUMERIC, "");
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setlinebuf(stdout); /* line-buffered stdout */
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outfd = open_stockfish();
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bitboard_init();
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hyperbola_init();
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while ((fen = next_fen(PERFT | MOVEDO))) {
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test_line = cur_line();
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if (!(pos = fen2pos(NULL, fen))) {
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printf("wrong fen %d: [%s]\n", i, fen);
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continue;
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}
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sf_count = send_stockfish_fen(outfd, fishpos, &fishmoves, fen, depth);
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//pos_gen_pseudomoves(pos, &pseudo);
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savepos = pos_dup(pos);
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//int j = 0;
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#define NANOSEC 1000000000 /* nano sec in sec */
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#define MILLISEC 1000000 /* milli sec in sec */
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struct timespec ts1, ts2;
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clock_gettime(CLOCK_MONOTONIC_RAW, &ts1);
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my_count = perft(pos, depth, 1);
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clock_gettime(CLOCK_MONOTONIC_RAW, &ts2);
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// 1 sec = 1000 millisec
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// 1 millisec = 1000 microsec
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// 1 microsec = 1000 nanosec
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// milli = sec * 1000 + nanosec / 1000000
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s64 microsecs = ((s64)ts2.tv_sec - (s64)ts1.tv_sec) * 1000000l
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+ ((s64)ts2.tv_nsec - (s64)ts1.tv_nsec) / 1000l ;
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if (sf_count == my_count) {
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printf("OK : fen line=%03d \"%s\" perft=%lu in %'ldms (LPS: %'lu)\n",
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test_line, fen, my_count, microsecs/1000l,
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my_count*1000000l/microsecs);
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} else {
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printf("ERR: fen line=%03d [%s] sf=%lu me=%lu\n",
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test_line, fen, sf_count, my_count);
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}
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pos_del(savepos);
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pos_del(pos);
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i++;
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}
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return 0;
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}
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