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klotski
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perf: get `type_id` from RawCode more faster

legacy
Dnomd343 7 months ago
parent
5b979e8d93
commit
81652f7fa3
2 changed files with 84 additions and 106 deletions
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  1. 36
      src/core/benchmark/group.cc
  2. 154
      src/core/group/internal/group.cc

36
src/core/benchmark/group.cc
View File

@ -44,6 +44,17 @@ std::vector<uint64_t> common_code_samples(uint64_t num) {
}
std::vector<uint64_t> raw_code_samples(uint64_t num) {
auto codes = common_code_samples(num);
for (auto &code : codes) {
code = klotski::codec::CommonCode::unsafe_create(code).to_raw_code().unwrap();
}
return codes;
}
static void CommonCodeToTypeId(benchmark::State &state) {
auto samples = common_code_samples(state.range(0));
@ -61,6 +72,29 @@ static void CommonCodeToTypeId(benchmark::State &state) {
}
BENCHMARK(CommonCodeToTypeId)->Arg(8)->Arg(64)->Arg(256);
static void RawCodeToTypeId(benchmark::State &state) {
auto samples = raw_code_samples(state.range(0));
// for (auto code : samples) {
// if (klotski::codec::RawCode::check(code) == false) {
// std::cout << "error" << std::endl;
// }
// }
for (auto _ : state) {
for (auto code : samples) {
volatile auto ret = klotski::cases::raw_code_to_type_id(code);
}
}
state.SetItemsProcessed(state.iterations() * state.range(0));
}
// BENCHMARK(CommonCodeToTypeId)->Arg(8)->Arg(64)->Arg(256);
BENCHMARK(RawCodeToTypeId)->Arg(8)->Arg(64)->Arg(256);
BENCHMARK_MAIN();

154
src/core/group/internal/group.cc
View File

@ -11,94 +11,9 @@ struct block_num_t {
};
/// n_space = 16 - n_1x1 - (n_1x2 + n_2x1) * 2
// TODO: fast convert from RawCode / CommonCode -> block_num_t
// static block_num_t block_num(klotski::codec::RawCode raw_code);
// static block_num_t block_num(klotski::codec::CommonCode common_code);
// TODO: convert from block_num -> type_id
// static int type_id(block_num_t block_num);
using klotski::range_reverse;
const uint16_t TYPE_ID_INDEX[203] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 256,
257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 272, 273, 274, 275,
276, 277, 278, 279, 280, 281, 282, 283, 284, 512, 513, 514, 515, 516, 517, 518,
519, 520, 521, 522, 528, 529, 530, 531, 532, 533, 534, 535, 536, 537, 538, 544,
545, 546, 547, 548, 549, 550, 551, 552, 553, 554, 768, 769, 770, 771, 772, 773,
774, 775, 776, 784, 785, 786, 787, 788, 789, 790, 791, 792, 800, 801, 802, 803,
804, 805, 806, 807, 808, 816, 817, 818, 819, 820, 821, 822, 823, 824, 1024, 1025,
1026, 1027, 1028, 1029, 1030, 1040, 1041, 1042, 1043, 1044, 1045, 1046, 1056, 1057, 1058, 1059,
1060, 1061, 1062, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1088, 1089, 1090, 1091, 1092, 1093,
1094, 1280, 1281, 1282, 1283, 1284, 1296, 1297, 1298, 1299, 1300, 1312, 1313, 1314, 1315, 1316,
1328, 1329, 1330, 1331, 1332, 1344, 1345, 1346, 1347, 1348, 1360, 1361, 1362, 1363, 1364, 1536,
1537, 1538, 1552, 1553, 1554, 1568, 1569, 1570, 1584, 1585, 1586, 1600, 1601, 1602, 1616, 1617,
1618, 1632, 1633, 1634, 1792, 1808, 1824, 1840, 1856, 1872, 1888,
};
using klotski::cases::TYPE_ID_LIMIT;
uint32_t cal_type_id(block_num_t &&block_num) noexcept { // block_num_t -> type_id
/// flag -> ... 0000 0xxx 0xxx xxxx
/// n_x2x n_2x1 n_1x1
auto n_x2x = block_num.n_1x2 + block_num.n_2x1;
auto flag = (n_x2x << 8) | (block_num.n_2x1 << 4) | block_num.n_1x1;
return std::lower_bound(TYPE_ID_INDEX, TYPE_ID_INDEX + TYPE_ID_LIMIT, flag) - TYPE_ID_INDEX;
}
block_num_t cal_common_block_num(const uint64_t common_code) noexcept {
block_num_t result;
auto range = range_reverse(static_cast<uint32_t>(common_code));
for (; range; range >>= 2) {
switch (range & 0b11) {
case 0b01: /// 1x2 block
++result.n_1x2;
continue;
case 0b10: /// 2x1 block
++result.n_2x1;
continue;
case 0b11: /// 1x1 block
++result.n_1x1;
continue;
}
}
return result;
}
block_num_t cal_raw_block_num(const uint64_t raw_code) noexcept {
block_num_t result;
auto tmp = raw_code;
for (int addr = 0; addr < 20; ++addr, tmp >>= 3) {
switch (tmp & 0b111) {
case BLOCK_1x1:
++result.n_1x1;
continue;
case BLOCK_1x2:
++result.n_1x2;
continue;
case BLOCK_2x1:
++result.n_2x1;
continue;
}
}
return result;
}
uint32_t my_type_id(uint32_t n_1x2, uint32_t n_2x1, uint32_t n_1x1) noexcept { // block_num_t -> type_id
/// flag -> ... 0000 0xxx 0xxx xxxx
/// n_x2x n_2x1 n_1x1
// auto n_x2x = n_1x2 + n_2x1;
// auto flag = (n_x2x << 8) | (n_2x1 << 4) | n_1x1;
// return std::lower_bound(TYPE_ID_INDEX, TYPE_ID_INDEX + TYPE_ID_LIMIT, flag) - TYPE_ID_INDEX;
// for (int n = 0; n <= 7; ++n) { // n -> n_1x2 + n_2x1
// for (int n_21 = 0; n_21 <= n; ++n) {
// // n_11 <= 14 - n * 2
// for (int n_11 = 0; n_11 <= (14 - n*2); ++n_11) {
// // get one case
// }
// }
// }
// n = 0 | n_21 ~ 1 | n_11 ~ 15 | => 15
// n = 1 | n_21 ~ 2 | n_11 ~ 13 | => 26
@ -109,38 +24,66 @@ uint32_t my_type_id(uint32_t n_1x2, uint32_t n_2x1, uint32_t n_1x1) noexcept { /
// n = 6 | n_21 ~ 7 | n_11 ~ 3 | => 21
// n = 7 | n_21 ~ 8 | n_11 ~ 1 | => 8
constexpr uint32_t offset_tab[8] = {0, 15, 41, 74, 110, 145, 175, 196};
// input -> n / n_2x1 / n_1x1
constexpr uint32_t offset[8] = {0, 15, 41, 74, 110, 145, 175, 196};
uint32_t n = n_1x2 + n_2x1;
uint32_t offset = offset_tab[n];
auto span = 15 - n*2;
return offset[n] + (15 - n*2) * n_2x1 + n_1x1;
}
uint32_t offset_ = span * n_2x1;
uint32_t type_id_pro(int n, int n_2x1, int n_1x1) {
return offset + offset_ + n_1x1;
constexpr uint32_t offset[8] = {0, 15, 41, 74, 110, 145, 175, 196};
return offset[n] + (15 - n*2) * n_2x1 + n_1x1;
}
uint32_t common_code_pro(uint64_t common_code) {
uint32_t range = (uint32_t)common_code;
uint32_t k_01 = (~range >> 1) & range & 0x55555555;
uint32_t k_10 = (range >> 1) & ~range & 0x55555555;
uint32_t k_11 = (range >> 1) & range & 0x55555555;
const auto range = static_cast<uint32_t>(common_code);
const auto n_1x1 = std::popcount((range >> 1) & range & 0x55555555);
const auto n_2x1 = std::popcount((range >> 1) & ~range & 0x55555555);
return type_id_pro(std::popcount(range) - n_1x1 * 2, n_2x1, n_1x1);
}
uint32_t raw_code_pro(uint64_t raw_code) {
// 1x1 -> 011
// 1x2 -> 001
// 2x1 -> 010
/// 0 2 4 9 2 4 9 2 4 9 2 4 9 2 4 9
/// 0000 0010 0100 1001 0010 0100 1001 0010 0100 1001 0010 0100 1001 0010 0100 1001
uint64_t k_1x1 = (~raw_code >> 2) & (raw_code >> 1) & raw_code & (uint64_t)0x0249249249249249;
// uint64_t k_1x2 = (~raw_code >> 2) & (~raw_code >> 1) & raw_code & (uint64_t)0x0249249249249249;
// uint64_t k_2x1 = (~raw_code >> 2) & (raw_code >> 1) & ~raw_code & (uint64_t)0x0249249249249249;
// 0010 0100 1001 -> 249
// uint64_t k_1x2 = (~raw_code >> 1) & raw_code & (uint64_t)0x0249249249249249;
uint64_t k_2x1 = (raw_code >> 1) & ~raw_code & (uint64_t)0x0249249249249249;
auto n_1x1 = std::popcount(k_1x1);
// auto n_1x2 = std::popcount(k_1x2);
auto n_2x1 = std::popcount(k_2x1);
uint64_t k_ = ((raw_code >> 1) ^ raw_code) & (uint64_t)0x0249249249249249;
auto n_ = std::popcount(k_);
auto n_01 = std::popcount(k_01);
auto n_10 = std::popcount(k_10);
auto n_11 = std::popcount(k_11);
// popcount = 10 + BLOCK_1x1 * 2 + (BLOCK_1x2 + BLOCK_2x1) * 4
// auto n_1x1 = (std::popcount(raw_code) - 10 - (n_1x2 + n_2x1) * 4) / 2;
// block_num_t tmp {
// .n_1x1 = (uint8_t)std::popcount(k_11),
// .n_1x2 = (uint8_t)std::popcount(k_01),
// .n_2x1 = (uint8_t)std::popcount(k_10),
// };
uint64_t k_1x1_ = (raw_code >> 1) & raw_code & (uint64_t)0x0249249249249249;
auto n_1x1_ = std::popcount(k_1x1_) - n_ - 3;
return my_type_id(n_01, n_10, n_11);
// 0100 1001 0010 -> 492
uint64_t k_1x1__ = (~raw_code >> 1) & raw_code & (uint64_t)0x0492492492492492;
auto n_1x1__ = std::popcount(k_1x1__) - n_2x1;
// return my_type_id(std::popcount(k_01), std::popcount(k_10), std::popcount(k_11));
// return my_type_id(n_1x2, n_2x1, n_1x1);
// return type_id_pro(n_2x1 + n_1x2, n_2x1, n_1x1);
return type_id_pro(n_, n_2x1, n_1x1_);
}
uint32_t klotski::cases::common_code_to_type_id(uint64_t common_code) {
@ -149,5 +92,6 @@ uint32_t klotski::cases::common_code_to_type_id(uint64_t common_code) {
}
uint32_t klotski::cases::raw_code_to_type_id(uint64_t raw_code) {
return cal_type_id(cal_raw_block_num(raw_code));
// return cal_type_id(cal_raw_block_num(raw_code));
return raw_code_pro(raw_code);
}

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