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Implement dbg_extremes_of

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An alternative to #5431, implements one function `dbg_extremes_of` to keep track
of min and max.

closes https://github.com/official-stockfish/Stockfish/pull/5434

No functional change
This commit is contained in:
Shawn Xu 2024-07-02 15:06:37 -07:00 • committed by Joost VandeVondele
parent ad0f1fecda
commit b9ff5bb93b
2 changed files with 33 additions and 4 deletions
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35
src/misc.cpp
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@ -284,10 +284,18 @@ struct DebugInfo {
constexpr std::atomic<int64_t>& operator[](int index) { return data[index]; }
};
DebugInfo<2> hit[MaxDebugSlots];
DebugInfo<2> mean[MaxDebugSlots];
DebugInfo<3> stdev[MaxDebugSlots];
DebugInfo<6> correl[MaxDebugSlots];
struct DebugExtremes: public DebugInfo<3> {
DebugExtremes() {
data[1] = std::numeric_limits<int64_t>::min();
data[2] = std::numeric_limits<int64_t>::max();
}
};
DebugInfo<2> hit[MaxDebugSlots];
DebugInfo<2> mean[MaxDebugSlots];
DebugInfo<3> stdev[MaxDebugSlots];
DebugInfo<6> correl[MaxDebugSlots];
DebugExtremes extremes[MaxDebugSlots];
} // namespace
@ -311,6 +319,18 @@ void dbg_stdev_of(int64_t value, int slot) {
stdev[slot][2] += value * value;
}
void dbg_extremes_of(int64_t value, int slot) {
++extremes[slot][0];
int64_t current_max = extremes[slot][1].load();
while (current_max < value && !extremes[slot][1].compare_exchange_weak(current_max, value))
{}
int64_t current_min = extremes[slot][2].load();
while (current_min > value && !extremes[slot][2].compare_exchange_weak(current_min, value))
{}
}
void dbg_correl_of(int64_t value1, int64_t value2, int slot) {
++correl[slot][0];
@ -345,6 +365,13 @@ void dbg_print() {
std::cerr << "Stdev #" << i << ": Total " << n << " Stdev " << r << std::endl;
}
for (int i = 0; i < MaxDebugSlots; ++i)
if ((n = extremes[i][0]))
{
std::cerr << "Extremity #" << i << ": Total " << n << " Min " << extremes[i][2]
<< " Max " << extremes[i][1] << std::endl;
}
for (int i = 0; i < MaxDebugSlots; ++i)
if ((n = correl[i][0]))
{

2
src/misc.h
View file

@ -67,6 +67,8 @@ std::optional<std::string> read_file_to_string(const std::string& path);
void dbg_hit_on(bool cond, int slot = 0);
void dbg_mean_of(int64_t value, int slot = 0);
void dbg_stdev_of(int64_t value, int slot = 0);
void dbg_extremes_of(int64_t value, int slot);
void dbg_correl_of(int64_t value1, int64_t value2, int slot = 0);
void dbg_print();