From: Joona Kiiski Date: Sun, 7 Feb 2010 11:15:39 +0000 (+0200) Subject: Implement init_search() X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=7ae16a193b2c9272e8e9aab9783d8c750e3bbf9a Implement init_search() No functional change Signed-off-by: Marco Costalba --- diff --git a/src/application.cpp b/src/application.cpp index 2e6adcac..3bdd70bb 100644 --- a/src/application.cpp +++ b/src/application.cpp @@ -49,6 +49,7 @@ Application::Application() { Position::init_piece_square_tables(); init_eval(1); init_bitbases(); + init_search(); init_threads(); // Make random number generation less deterministic, for book moves diff --git a/src/search.cpp b/src/search.cpp index 4eabb59f..c13431bc 100644 --- a/src/search.cpp +++ b/src/search.cpp @@ -527,21 +527,13 @@ bool think(const Position& pos, bool infinite, bool ponder, int side_to_move, } -/// init_threads() is called during startup. It launches all helper threads, -/// and initializes the split point stack and the global locks and condition -/// objects. +/// init_search() is called during startup. It initializes various +/// lookup tables. -void init_threads() { - - volatile int i; - bool ok; - -#if !defined(_MSC_VER) - pthread_t pthread[1]; -#endif +void init_search() { // Init our reduction lookup tables - for (i = 1; i < 64; i++) // i == depth + for (int i = 1; i < 64; i++) // i == depth (OnePly = 1) for (int j = 1; j < 64; j++) // j == moveNumber { double pvRed = 0.5 + log(double(i)) * log(double(j)) / 6.0; @@ -551,15 +543,30 @@ void init_threads() { } // Init futility margins array - for (i = 0; i < 14; i++) // i == depth (OnePly = 2) + for (int i = 0; i < 14; i++) // i == depth (OnePly = 2) for (int j = 0; j < 64; j++) // j == moveNumber { FutilityMarginsMatrix[i][j] = (i < 2 ? 0 : 112 * bitScanReverse32(i * i / 2)) - 8 * j; // FIXME: test using log instead of BSR } // Init futility move count array - for (i = 0; i < 32; i++) // i == depth (OnePly = 2) + for (int i = 0; i < 32; i++) // i == depth (OnePly = 2) FutilityMoveCountArray[i] = 3 + (1 << (3 * i / 8)); +} + + +/// init_threads() is called during startup. It launches all helper threads, +/// and initializes the split point stack and the global locks and condition +/// objects. + +void init_threads() { + + volatile int i; + bool ok; + +#if !defined(_MSC_VER) + pthread_t pthread[1]; +#endif for (i = 0; i < THREAD_MAX; i++) Threads[i].activeSplitPoints = 0; diff --git a/src/search.h b/src/search.h index 7b114bf2..4a6d3da5 100644 --- a/src/search.h +++ b/src/search.h @@ -68,6 +68,7 @@ struct SearchStack { //// Prototypes //// +extern void init_search(); extern void init_threads(); extern void stop_threads(); extern bool think(const Position &pos, bool infinite, bool ponder, int side_to_move,