Restore perft

[stockfish] / src / benchmark.cpp

diff --git a/src/benchmark.cpp b/src/benchmark.cpp
index c1c74f7bc94294c3903e4be88af37f42bb0a1d08..c9a5933daa25d5c280956acb4e88f6b97767839c 100644 (file)
--- a/src/benchmark.cpp
+++ b/src/benchmark.cpp
@@ -86,11 +86,16 @@ const vector<string> Defaults = {
 } // namespace
 
 /// setup_bench() builds a list of UCI commands to be run by bench. There
-/// are five parameters: TT size, number of search threads that should
-/// be used, the limit value spent for each position (optional, default is
-/// depth 13), an optional file name where to look for positions in FEN
-/// format (defaults are the positions defined above) and the type of the
-/// limit value: depth (default), time in millisecs or number of nodes.
+/// are five parameters: TT size in MB, number of search threads that
+/// should be used, the limit value spent for each position, a file name
+/// where to look for positions in FEN format and the type of the limit:
+/// depth, perft, nodes and movetime (in millisecs).
+///
+/// bench -> search default positions up to depth 13
+/// bench 64 1 15 -> search default positions up to depth 15 (TT = 64MB)
+/// bench 64 4 5000 current movetime -> search current position with 4 threads for 5 sec
+/// bench 64 1 100000 default nodes -> search default positions for 100K nodes each
+/// bench 16 1 5 default perft -> run a perft 5 on default positions
 
 std::vector<string> setup_bench(const Position& current , istream& is) {