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Implemented perft

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Patch from Joona with extension to benchmark and inclusion
of Depth(0) moves generation by me.

Note that to test also qsearch and in particulary checks
generations a change in the end condition is needed.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Joona Kiiski
2009-10-02 07:09:24 +03:00
committed by Marco Costalba
parent d9b920acfb
commit fa49311b36
5 changed files with 57 additions and 5 deletions
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23
src/uci.cpp
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@@ -61,6 +61,7 @@ namespace {
void set_option(UCIInputParser& uip);
void set_position(UCIInputParser& uip);
bool go(UCIInputParser& uip);
void perft(UCIInputParser& uip);
}
@@ -155,6 +156,8 @@ namespace {
cout << "key: " << hex << RootPosition.get_key()
<< "\nmaterial key: " << RootPosition.get_material_key()
<< "\npawn key: " << RootPosition.get_pawn_key() << endl;
else if (token == "perft")
perft(uip);
else
{
cout << "Unknown command: " << command << endl;
@@ -318,4 +321,24 @@ namespace {
time, inc, movesToGo, depth, nodes, moveTime, searchMoves);
}
void perft(UCIInputParser& uip) {
string token;
int depth = 0;
while (!uip.eof())
{
uip >> token;
if (token == "depth")
uip >> depth;
}
Position pos = RootPosition;
int tm = get_system_time();
int n = perft(pos, depth * OnePly);
tm = get_system_time() - tm;
std::cout << "\nNodes " << n
<< "\nTime (ms) " << tm
<< "\nNodes/second " << (int)(n/(tm/1000.0)) << std::endl;
}
}