From: Marco Costalba <mcostalba@gmail.com>
Date: Tue, 4 Dec 2012 06:57:46 +0000 (+0100)
Subject: Merge branch 'eval_cache'
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=6fa83f51889248b16f539db4ce0fe5b23f2a85d6;hp=23bdd064426c6fb5b6fd860d156c9f50bb58d0db

Merge branch 'eval_cache'

Use an eval cache instead of TT to store node
position evaluations.

It is already an improvment and, because it frees
two TT entry slots, paves the way to extend TT to
store both upper and lower bounds.

After 4855 games, single thread, 15"+0.05
Mod vs Orig 1165 -920 - 2770 ELO +18

bench: 5149248
---

diff --git a/src/thread.h b/src/thread.h
index 488feeb5..6c3c18af 100644
--- a/src/thread.h
+++ b/src/thread.h
@@ -29,7 +29,7 @@
 #include "position.h"
 #include "search.h"
 
-const int MAX_THREADS = 32;
+const int MAX_THREADS = 64; // Because SplitPoint::slavesMask is a uint64_t
 const int MAX_SPLITPOINTS_PER_THREAD = 8;
 
 struct Mutex {