/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
- Copyright (C) 2004-2021 The Stockfish developers (see AUTHORS file)
+ Copyright (C) 2004-2022 The Stockfish developers (see AUTHORS file)
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
// overaligning stack variables with alignas() doesn't work correctly.
constexpr uint64_t alignment = CacheLineSize;
+ int delta = 7;
#if defined(ALIGNAS_ON_STACK_VARIABLES_BROKEN)
TransformedFeatureType transformedFeaturesUnaligned[
FeatureTransformer::BufferSize + alignment / sizeof(TransformedFeatureType)];
- char bufferUnaligned[Network::BufferSize + alignment];
auto* transformedFeatures = align_ptr_up<alignment>(&transformedFeaturesUnaligned[0]);
- auto* buffer = align_ptr_up<alignment>(&bufferUnaligned[0]);
#else
alignas(alignment)
TransformedFeatureType transformedFeatures[FeatureTransformer::BufferSize];
- alignas(alignment) char buffer[Network::BufferSize];
#endif
ASSERT_ALIGNED(transformedFeatures, alignment);
- ASSERT_ALIGNED(buffer, alignment);
const std::size_t bucket = (pos.count<ALL_PIECES>() - 1) / 4;
const auto psqt = featureTransformer->transform(pos, transformedFeatures, bucket);
- const auto output = network[bucket]->propagate(transformedFeatures, buffer);
+ const auto positional = network[bucket]->propagate(transformedFeatures);
- int materialist = psqt;
- int positional = output[0];
-
- int delta_npm = abs(pos.non_pawn_material(WHITE) - pos.non_pawn_material(BLACK));
- int entertainment = (adjusted && delta_npm <= BishopValueMg - KnightValueMg ? 7 : 0);
-
- int A = 128 - entertainment;
- int B = 128 + entertainment;
-
- int sum = (A * materialist + B * positional) / 128;
-
- return static_cast<Value>( sum / OutputScale );
+ // Give more value to positional evaluation when adjusted flag is set
+ if (adjusted)
+ return static_cast<Value>(((128 - delta) * psqt + (128 + delta) * positional) / 128 / OutputScale);
+ else
+ return static_cast<Value>((psqt + positional) / OutputScale);
}
struct NnueEvalTrace {
#if defined(ALIGNAS_ON_STACK_VARIABLES_BROKEN)
TransformedFeatureType transformedFeaturesUnaligned[
FeatureTransformer::BufferSize + alignment / sizeof(TransformedFeatureType)];
- char bufferUnaligned[Network::BufferSize + alignment];
auto* transformedFeatures = align_ptr_up<alignment>(&transformedFeaturesUnaligned[0]);
- auto* buffer = align_ptr_up<alignment>(&bufferUnaligned[0]);
#else
alignas(alignment)
TransformedFeatureType transformedFeatures[FeatureTransformer::BufferSize];
- alignas(alignment) char buffer[Network::BufferSize];
#endif
ASSERT_ALIGNED(transformedFeatures, alignment);
- ASSERT_ALIGNED(buffer, alignment);
NnueEvalTrace t{};
t.correctBucket = (pos.count<ALL_PIECES>() - 1) / 4;
for (std::size_t bucket = 0; bucket < LayerStacks; ++bucket) {
- const auto psqt = featureTransformer->transform(pos, transformedFeatures, bucket);
- const auto output = network[bucket]->propagate(transformedFeatures, buffer);
-
- int materialist = psqt;
- int positional = output[0];
+ const auto materialist = featureTransformer->transform(pos, transformedFeatures, bucket);
+ const auto positional = network[bucket]->propagate(transformedFeatures);
t.psqt[bucket] = static_cast<Value>( materialist / OutputScale );
t.positional[bucket] = static_cast<Value>( positional / OutputScale );
{
buffer[1] = '0' + cp / 10000; cp %= 10000;
buffer[2] = '0' + cp / 1000; cp %= 1000;
- buffer[3] = '0' + cp / 100; cp %= 100;
+ buffer[3] = '0' + cp / 100;
buffer[4] = ' ';
}
else if (cp >= 1000)
actualFilename = filename.value();
else
{
- if (eval_file_loaded != EvalFileDefaultName)
+ if (currentEvalFileName != EvalFileDefaultName)
{
msg = "Failed to export a net. A non-embedded net can only be saved if the filename is specified";