Remove lazy SMP noise

Tearth · Aug 30, 2024 · c06debf · c06debf
1 parent 472b2f1
commit c06debf
Showing 1 changed file with 0 additions and 7 deletions.
diff --git a/src/engine/search.rs b/src/engine/search.rs
@@ -10,7 +10,6 @@ use crate::utils::bithelpers::BitHelpers;
 use crate::utils::conditional_expression;
 use crate::utils::panic_fast;
 use crate::utils::parameter;
-use crate::utils::rand;
 use std::cmp;
 use std::mem::MaybeUninit;
 use std::sync::atomic::Ordering;
@@ -29,8 +28,6 @@ pub const MOVE_ORDERING_HISTORY_MOVE: u8 = 180;
 pub const MOVE_ORDERING_HISTORY_MOVE_OFFSET: i16 = -90;
 pub const MOVE_ORDERING_LOSING_CAPTURES_OFFSET: i16 = -100;
 
-pub const LAZY_SMP_NOISE: i16 = 10;
-
 #[derive(std::cmp::PartialEq)]
 enum MoveGeneratorStage {
     ReadyToCheckHashMove,
@@ -577,10 +574,6 @@ fn assign_quiet_scores(
             }
 
             let mut value = context.history_table.get(r#move.get_from(), r#move.get_to(), MOVE_ORDERING_HISTORY_MOVE) as i16;
-            if context.helper_thread && value + LAZY_SMP_NOISE < MOVE_ORDERING_HISTORY_MOVE as i16 {
-                value += rand::i16(0..=LAZY_SMP_NOISE);
-            }
-
             value += MOVE_ORDERING_HISTORY_MOVE_OFFSET;
             move_scores[move_index].write(value);