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Code Issues Releases Wiki Activity

Remove current line printing in SMP mode

Browse source 
Was broken and fixing would be too messy.
Now this option is only activated in single thread mode

No functional change

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Joona Kiiski 2010-02-25 12:21:56 +02:00 • committed by Marco Costalba
parent 9d4abbc6eb
commit 7bcd97933a
2 changed files with 13 additions and 52 deletions
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64
src/search.cpp
View file

@ -72,7 +72,6 @@ namespace {
void set_active_threads(int newActiveThreads) { ActiveThreads = newActiveThreads; }
void incrementNodeCounter(int threadID) { threads[threadID].nodes++; }
void incrementBetaCounter(Color us, Depth d, int threadID) { threads[threadID].betaCutOffs[us] += unsigned(d); }
void print_current_line(SearchStack ss[], int ply, int threadID);
void resetNodeCounters();
void resetBetaCounters();
@ -88,14 +87,14 @@ namespace {
Depth depth, int* moves, MovePicker* mp, int master, bool pvNode);
private:
friend void poll();
friend void poll(SearchStack ss[], int ply);
int ActiveThreads;
volatile bool AllThreadsShouldExit, AllThreadsShouldSleep;
Thread threads[MAX_THREADS];
SplitPoint SplitPointStack[MAX_THREADS][ACTIVE_SPLIT_POINTS_MAX];
Lock MPLock, IOLock;
Lock MPLock;
#if !defined(_MSC_VER)
pthread_cond_t WaitCond;
@ -288,7 +287,7 @@ namespace {
int current_search_time();
int nps();
void poll();
void poll(SearchStack ss[], int ply);
void ponderhit();
void wait_for_stop_or_ponderhit();
void init_ss_array(SearchStack ss[]);
@ -2041,13 +2040,12 @@ namespace {
NodesSincePoll++;
if (NodesSincePoll >= NodesBetweenPolls)
{
poll();
poll(ss, ply);
NodesSincePoll = 0;
}
}
ss[ply].init(ply);
ss[ply + 2].initKillers();
TM.print_current_line(ss, ply, threadID);
}
@ -2405,7 +2403,7 @@ namespace {
// looks at the time consumed so far and decides if it's time to abort the
// search.
void poll() {
void poll(SearchStack ss[], int ply) {
static int lastInfoTime;
int t = current_search_time();
@ -2447,7 +2445,6 @@ namespace {
else if (t - lastInfoTime >= 1000)
{
lastInfoTime = t;
lock_grab(&TM.IOLock);
if (dbg_show_mean)
dbg_print_mean();
@ -2458,10 +2455,15 @@ namespace {
cout << "info nodes " << TM.nodes_searched() << " nps " << nps()
<< " time " << t << " hashfull " << TT.full() << endl;
lock_release(&TM.IOLock);
// We only support current line printing in single thread mode
if (ShowCurrentLine && TM.active_threads() == 1)
{
cout << "info currline";
for (int p = 0; p < ply; p++)
cout << " " << ss[p].currentMove;
if (ShowCurrentLine)
TM.threads[0].printCurrentLineRequest = true;
cout << endl;
}
}
// Should we stop the search?
@ -2690,7 +2692,6 @@ namespace {
// Initialize global locks
lock_init(&MPLock, NULL);
lock_init(&IOLock, NULL);
// Initialize SplitPointStack locks
for (i = 0; i < MAX_THREADS; i++)
@ -2992,47 +2993,8 @@ namespace {
// This makes the threads to go to sleep
AllThreadsShouldSleep = true;
// Reset flags to a known state.
for (int i = 1; i < ActiveThreads; i++)
{
// This flag can be in a random state
threads[i].printCurrentLineRequest = false;
}
}
// print_current_line() prints _once_ the current line of search for a
// given thread and then setup the print request for the next thread.
// Called when the UCI option UCI_ShowCurrLine is 'true'.
void ThreadsManager::print_current_line(SearchStack ss[], int ply, int threadID) {
assert(ply >= 0 && ply < PLY_MAX);
assert(threadID >= 0 && threadID < ActiveThreads);
if (!threads[threadID].printCurrentLineRequest)
return;
// One shot only
threads[threadID].printCurrentLineRequest = false;
if (threads[threadID].state == THREAD_SEARCHING)
{
lock_grab(&IOLock);
cout << "info currline " << (threadID + 1);
for (int p = 0; p < ply; p++)
cout << " " << ss[p].currentMove;
cout << endl;
lock_release(&IOLock);
}
// Setup print request for the next thread ID
if (threadID + 1 < ActiveThreads)
threads[threadID + 1].printCurrentLineRequest = true;
}
/// The RootMoveList class
// RootMoveList c'tor

1
src/thread.h
View file

@ -87,7 +87,6 @@ struct Thread {
volatile int activeSplitPoints;
uint64_t nodes;
uint64_t betaCutOffs[2];
volatile bool printCurrentLineRequest;
volatile ThreadState state;
unsigned char pad[64]; // set some distance among local data for each thread
};