From a49e4fac9839263ef2a3b885a051ec842b1202d9 Mon Sep 17 00:00:00 2001 From: Marco Costalba Date: Sun, 18 Apr 2010 09:18:49 +0100 Subject: [PATCH] Better perft integration in benchmark Now with: stockfish bench 128 1 5 default perft it is possible to get perft 5 results of each position and the first 3 positions correspond to the well known test position in: http://chessprogramming.wikispaces.com/Perft+Results This allow to quickly check for perft consistency running the 'bench' command. No functional change but signature has changed because bench default positions 2 and 3 have changed. Signed-off-by: Marco Costalba --- src/benchmark.cpp | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/src/benchmark.cpp b/src/benchmark.cpp index 766b7698..1d40b8fd 100644 --- a/src/benchmark.cpp +++ b/src/benchmark.cpp @@ -38,8 +38,8 @@ using namespace std; const string BenchmarkPositions[] = { "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1", - "r4rk1/1b2qppp/p1n1p3/1p6/1b1PN3/3BRN2/PP3PPP/R2Q2K1 b - - 7 16", - "4r1k1/ppq3pp/3b4/2pP4/2Q1p3/4B1P1/PP5P/R5K1 b - - 0 20", + "r3k2r/p1ppqpb1/bn2pnp1/3PN3/1p2P3/2N2Q1p/PPPBBPPP/R3K2R w KQkq -", + "8/2p5/3p4/KP5r/1R3p1k/8/4P1P1/8 w - -", "4rrk1/pp1n3p/3q2pQ/2p1pb2/2PP4/2P3N1/P2B2PP/4RRK1 b - - 7 19", "rq3rk1/ppp2ppp/1bnpb3/3N2B1/3NP3/7P/PPPQ1PP1/2KR3R w - - 7 14", "r1bq1r1k/1pp1n1pp/1p1p4/4p2Q/4Pp2/1BNP4/PPP2PPP/3R1RK1 w - - 2 14", @@ -154,10 +154,15 @@ void benchmark(const string& commandLine) { Position pos(*it); cerr << "\nBench position: " << cnt << '/' << positions.size() << endl << endl; if (limitType == "perft") - totalNodes += perft(pos, maxDepth * OnePly); - else if (!think(pos, false, false, 0, dummy, dummy, 0, maxDepth, maxNodes, secsPerPos, moves)) - break; - totalNodes += nodes_searched(); + { + int64_t perftCnt = perft(pos, maxDepth * OnePly); + cerr << "\nPerft " << maxDepth << " result (nodes searched): " << perftCnt << endl << endl; + totalNodes += perftCnt; + } else { + if (!think(pos, false, false, 0, dummy, dummy, 0, maxDepth, maxNodes, secsPerPos, moves)) + break; + totalNodes += nodes_searched(); + } } cnt = get_system_time() - startTime; -- 2.39.2