X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fsearch.cpp;h=13f333d9fc5a95511f133ee15f5d0a681e095f16;hb=57340c109b0ddd8764bf73dfa3bfe2bbe7928b59;hp=1bf56c8ea59a4ea8190f3e58b182c1ace6610a9e;hpb=5bb9da92872f298e6aedb59d728a42dc5719738e;p=stockfish

diff --git a/src/search.cpp b/src/search.cpp
index 1bf56c8e..13f333d9 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -162,7 +162,10 @@ namespace {
 
   // Step 6. Razoring
 
+  // Maximum depth for razoring
   const Depth RazorDepth = 4 * OnePly;
+
+  // Dynamic razoring margin based on depth
   inline Value razor_margin(Depth d) { return Value(0x200 + 0x10 * d); }
 
   // Step 8. Null move search with verification search
@@ -171,11 +174,12 @@ namespace {
   // evaluation of the position is more than NullMoveMargin below beta.
   const Value NullMoveMargin = Value(0x200);
 
-  // Depth limit for use of dynamic threat detection when null move fails low
+  // Maximum depth for use of dynamic threat detection when null move fails low
   const Depth ThreatDepth = 5 * OnePly;
 
   // Step 9. Internal iterative deepening
 
+  // Minimum depth for use of internal iterative deepening
   const Depth IIDDepthAtPVNodes = 5 * OnePly;
   const Depth IIDDepthAtNonPVNodes = 8 * OnePly;
 
@@ -191,6 +195,7 @@ namespace {
   Depth CheckExtension[2], SingleEvasionExtension[2], PawnPushTo7thExtension[2];
   Depth PassedPawnExtension[2], PawnEndgameExtension[2], MateThreatExtension[2];
 
+  // Minimum depth for use of singular extension
   const Depth SingularExtensionDepthAtPVNodes = 6 * OnePly;
   const Depth SingularExtensionDepthAtNonPVNodes = 8 * OnePly;
 
@@ -200,6 +205,7 @@ namespace {
 
   // Step 12. Futility pruning
 
+  // Futility margin for quiescence search
   const Value FutilityMarginQS = Value(0x80);
 
   // Futility lookup tables (initialized at startup) and their getter functions
@@ -218,7 +224,7 @@ namespace {
   inline Depth    pv_reduction(Depth d, int mn) { return (Depth)    PVReductionMatrix[Min(d / 2, 63)][Min(mn, 63)]; }
   inline Depth nonpv_reduction(Depth d, int mn) { return (Depth) NonPVReductionMatrix[Min(d / 2, 63)][Min(mn, 63)]; }
 
-
+  // Step. Common adjustments
 
   // Search depth at iteration 1
   const Depth InitialDepth = OnePly;
@@ -227,14 +233,15 @@ namespace {
   // better than the second best move.
   const Value EasyMoveMargin = Value(0x200);
 
-  /// Variables initialized by UCI options
-
   // Last seconds noise filtering (LSN)
   const bool UseLSNFiltering = true;
   const int LSNTime = 4000; // In milliseconds
   const Value LSNValue = value_from_centipawns(200);
   bool loseOnTime = false;
 
+
+  /// Global variables
+
   // Iteration counters
   int Iteration;
 
@@ -2761,9 +2768,6 @@ namespace {
             cout << "Failed to create thread number " << i << endl;
             Application::exit_with_failure();
         }
-
-        // Wait until the thread has finished launching and is gone to sleep
-        while (threads[i].state != THREAD_SLEEPING);
     }
   }
 
@@ -2992,9 +2996,6 @@ namespace {
     if (ActiveThreads == 1)
         return;
 
-    for (int i = 1; i < ActiveThreads; i++)
-        assert(threads[i].state == THREAD_SLEEPING);
-
 #if !defined(_MSC_VER)
     pthread_mutex_lock(&WaitLock);
     pthread_cond_broadcast(&WaitCond);