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MPI/Cluster implementation for Stockfish

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Based on Peter Österlund's "Lazy Cluster" algorithm,
but with some simplifications.
To compile, point COMPCXX to the MPI C++ compiler wrapper (mpicxx).
This commit is contained in:
Omri Mor
2017-12-07 17:33:28 -06:00
committed by Stéphane Nicolet
parent 800031c94c
commit 29c166a072
9 changed files with 388 additions and 41 deletions
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src/uci.cpp
+11 -7
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@@ -24,6 +24,7 @@
#include <string>
#include "evaluate.h"
#include "cluster.h"
#include "movegen.h"
#include "position.h"
#include "search.h"
@@ -97,7 +98,7 @@ namespace {
if (Options.count(name))
Options[name] = value;
else
else if (Cluster::is_root())
sync_cout << "No such option: " << name << sync_endl;
}
@@ -199,7 +200,7 @@ void UCI::loop(int argc, char* argv[]) {
cmd += std::string(argv[i]) + " ";
do {
if (argc == 1 && !getline(cin, cmd)) // Block here waiting for input or EOF
if (argc == 1 && !Cluster::getline(cin, cmd)) // Block here waiting for input or EOF
cmd = "quit";
istringstream is(cmd);
@@ -220,7 +221,7 @@ void UCI::loop(int argc, char* argv[]) {
else if (token == "ponderhit")
Threads.ponder = false; // Switch to normal search
else if (token == "uci")
else if (token == "uci" && Cluster::is_root())
sync_cout << "id name " << engine_info(true)
<< "\n" << Options
<< "\nuciok" << sync_endl;
@@ -229,14 +230,17 @@ void UCI::loop(int argc, char* argv[]) {
else if (token == "go") go(pos, is, states);
else if (token == "position") position(pos, is, states);
else if (token == "ucinewgame") Search::clear();
else if (token == "isready") sync_cout << "readyok" << sync_endl;
else if (token == "isready" && Cluster::is_root())
sync_cout << "readyok" << sync_endl;
// Additional custom non-UCI commands, mainly for debugging
else if (token == "flip") pos.flip();
else if (token == "bench") bench(pos, is, states);
else if (token == "d") sync_cout << pos << sync_endl;
else if (token == "eval") sync_cout << Eval::trace(pos) << sync_endl;
else
else if (token == "d" && Cluster::is_root())
sync_cout << pos << sync_endl;
else if (token == "eval" && Cluster::is_root())
sync_cout << Eval::trace(pos) << sync_endl;
else if (Cluster::is_root())
sync_cout << "Unknown command: " << cmd << sync_endl;
} while (token != "quit" && argc == 1); // Command line args are one-shot