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Added the use_game_draw_adjudication option.

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This commit is contained in:
nodchip
2020-08-10 15:44:58 +09:00
parent 12c6c2f550
commit 4a87d7b787
1 changed files with 47 additions and 4 deletions
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51
src/learn/learner.cpp
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@@ -118,6 +118,7 @@ bool use_draw_in_training_data_generation = false;
bool use_draw_in_training = false;
bool use_draw_in_validation = false;
bool use_hash_in_training = true;
bool use_game_draw_adjudication = false;
// -----------------------------------
// write phase file
@@ -394,6 +395,12 @@ void MultiThinkGenSfen::thread_worker(size_t thread_id)
// end flag
bool quit = false;
// Variables for draw adjudication.
// Todo: Make this as an option.
int adj_draw_ply = 80; // start the adjudication when ply reaches this value
int adj_draw_cnt = 8; // 4 move scores for each side have to be checked
int adj_draw_score = 0; // move score in CP
// repeat until the specified number of times
while (!quit)
{
@@ -495,6 +502,9 @@ void MultiThinkGenSfen::thread_worker(size_t thread_id)
// When random_move_minply == -1, random moves are performed continuously, so use it at this time.
int random_move_c = 0;
// Save history of move scores for adjudication
vector<int> move_hist_scores;
// ply: steps from the initial stage
for (int ply = 0; ; ++ply)
{
@@ -541,6 +551,34 @@ void MultiThinkGenSfen::thread_worker(size_t thread_id)
break;
}
// Adjudicate game to a draw if the last 4 scores of each engine is 0.
if (use_game_draw_adjudication) {
if (ply >= adj_draw_ply) {
int draw_cnt = 0;
bool is_adj_draw = false;
for (vector<int>::reverse_iterator it = move_hist_scores.rbegin();
it != move_hist_scores.rend(); ++it)
{
if (abs(*it) <= adj_draw_score)
draw_cnt++;
else
break; // score should be successive
if (draw_cnt >= adj_draw_cnt) {
is_adj_draw = true;
break;
}
}
if (is_adj_draw) {
if (use_draw_in_training_data_generation)
flush_psv(0);
break;
}
}
}
//// constant track
//if ((m = book.probe(pos)) != MOVE_NONE)
//{
@@ -597,6 +635,9 @@ void MultiThinkGenSfen::thread_worker(size_t thread_id)
break;
}
// Save the move score for adjudication.
move_hist_scores.push_back(value1);
// Processing according to each thousand-day hand.
if (pos.is_draw(0)) {
@@ -649,10 +690,10 @@ void MultiThinkGenSfen::thread_worker(size_t thread_id)
}
else {
v = Eval::evaluate(pos);
// evaluate() returns the evaluation value on the turn side, so
// If it's a turn different from root_color, you must invert v and return it.
if (rootColor != pos.side_to_move())
v = -v;
// evaluate() returns the evaluation value on the turn side, so
// If it's a turn different from root_color, you must invert v and return it.
if (rootColor != pos.side_to_move())
v = -v;
}
// Rewind.
@@ -955,6 +996,8 @@ void gen_sfen(Position&, istringstream& is)
is >> random_file_name;
else if (token == "use_draw_in_training_data_generation")
is >> use_draw_in_training_data_generation;
else if (token == "use_game_draw_adjudication")
is >> use_game_draw_adjudication;
else
cout << "Error! : Illegal token " << token << endl;
}