X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fucioption.cpp;h=9f1447e19944c42064998321af595af437292471;hp=3ee823e57d38cb7d9bfe9af2736b7e352696c6bf;hb=968c3de8e0acd46a8b55225dda1ed607ce24f380;hpb=5c8f571459fd4812543ead27d3644dcf46a5682d

diff --git a/src/ucioption.cpp b/src/ucioption.cpp
index 3ee823e5..9f1447e1 100644
--- a/src/ucioption.cpp
+++ b/src/ucioption.cpp
@@ -196,15 +196,18 @@ void init_uci_options() {
 
   load_defaults(options);
 
-  // Limit the default value of "Threads" to 7 even if we have 8 CPU cores.
-  // According to Ken Dail's tests, Glaurung plays much better with 7 than
-  // with 8 threads.  This is weird, but it is probably difficult to find out
-  // why before I have a 8-core computer to experiment with myself.
+  // Set optimal value for parameter "Minimum Split Depth"
+  // according to number of available cores.
   assert(options.find("Threads") != options.end());
   assert(options.find("Minimum Split Depth") != options.end());
 
-  options["Threads"].defaultValue = stringify(Min(cpu_count(), 7));
-  options["Threads"].currentValue = stringify(Min(cpu_count(), 7));
+  Option& thr = options["Threads"];
+  Option& msd = options["Minimum Split Depth"];
+
+  thr.defaultValue = thr.currentValue = stringify(cpu_count());
+
+  if (cpu_count() >= 8)
+      msd.defaultValue = msd.currentValue = stringify(7);
 }