lbaumberger
1043 lines
45 KiB
C++
1043 lines
45 KiB
C++
// # Changes: Added ILP for j-loop with K = 8
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// # added flopcount
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// FLOPCOUNT = n_iter * ( 69 * n_p ** 2 + 55 * n_obstacles * n_p ) // the linear n_p term cancels (4*K - 32 = 0)
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// # Predecessor: variant_float_inlining_SoA_symmetry_ILP_4.cpp
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#include "../headers/board_reduced_float.hpp"
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#include "../headers/constants_float.hpp"
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#include "../headers/pedestrian_reduced_float.hpp"
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#include <algorithm>
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#include <fstream>
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#include <random>
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#define SEED 42
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#define BOARD_WIDTH 10.0f
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#define BOARD_LENGTH 50.0f
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#define WALL_EPS 1e-3f
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#define BOARD_WIDTH_MINUS_WALL_EPS 9.999f
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#ifndef RANDOM_SEED
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#define RANDOM_SEED 0
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#endif
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#ifndef BENCHMARK
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#define BENCHMARK 0
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#endif
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using namespace std;
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vector<float> pos_x, pos_y;
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vector<float> sb_sq;
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vector<float> sb_e_x, sb_e_y;
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vector<float> e_x, e_y;
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vector<float> curr_vel_x, curr_vel_y;
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vector<float> w_x, w_y;
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vector<float> desired_v0;
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vector<float> v_max;
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vector<float> destination_x, destination_y;
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vector<int> color;
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Pedestrian *init_pedestrians(int n_p) {
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#if RANDOM_SEED
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random_device rd;
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mt19937 gen(rd());
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#else
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mt19937 gen(SEED);
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#endif
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normal_distribution<float> velocity_gen(v0_mean, v0_std_dev);
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uniform_real_distribution<float> y_gen(0.3, BOARD_WIDTH - 0.3);
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uniform_real_distribution<float> x_gen_left(2.0, BOARD_LENGTH / 2.0);
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uniform_real_distribution<float> x_gen_right(BOARD_LENGTH / 2.0, BOARD_LENGTH - 2.0);
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pos_x.resize(n_p);
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pos_y.resize(n_p);
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sb_sq.resize(n_p);
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sb_e_x.resize(n_p);
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sb_e_y.resize(n_p);
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e_x.resize(n_p);
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e_y.resize(n_p);
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curr_vel_x.resize(n_p);
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curr_vel_y.resize(n_p);
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w_x.resize(n_p);
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w_y.resize(n_p);
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desired_v0.resize(n_p);
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v_max.resize(n_p);
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destination_x.resize(n_p);
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destination_y.resize(n_p);
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color.resize(n_p);
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int n_p_half = n_p / 2;
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for (int i = 0; i < n_p_half; i++) {
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float x = x_gen_left(gen);
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float y = y_gen(gen);
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float dest_x = BOARD_LENGTH + 30.0;
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float dest_y = y;
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float init_e_x = dest_x - x;
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float init_e_y = dest_y - y;
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float init_e_norm = sqrt(init_e_x * init_e_x + init_e_y * init_e_y);
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float init_e_unit_x = init_e_x / init_e_norm;
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float init_e_unit_y = init_e_y / init_e_norm;
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float d_v0;
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do {
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d_v0 = velocity_gen(gen);
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} while (d_v0 <= 0.1);
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float v_m = 1.3 * d_v0;
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color[i] = 0;
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pos_x[i] = x;
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pos_y[i] = y;
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e_x[i] = init_e_unit_x;
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e_y[i] = init_e_unit_y;
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v_max[i] = v_m;
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desired_v0[i] = d_v0;
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destination_x[i] = dest_x;
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destination_y[i] = dest_y;
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w_x[i] = 0.0f;
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w_y[i] = 0.0f;
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curr_vel_x[i] = 0.0f;
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curr_vel_y[i] = 0.0f;
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sb_sq[i] = 0.0f;
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sb_e_x[i] = 0.0f;
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sb_e_y[i] = 0.0f;
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}
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for (int i = n_p_half; i < n_p; i++) {
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float x = x_gen_right(gen);
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float y = y_gen(gen);
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float dest_x = -30;
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float dest_y = y;
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float init_e_x = dest_x - x;
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float init_e_y = dest_y - y;
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float init_e_norm = sqrt(init_e_x * init_e_x + init_e_y * init_e_y);
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float init_e_unit_x = init_e_x / init_e_norm;
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float init_e_unit_y = init_e_y / init_e_norm;
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float d_v0;
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do {
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d_v0 = velocity_gen(gen);
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} while (d_v0 <= 0.1);
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float v_m = 1.3 * d_v0;
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color[i] = 1;
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pos_x[i] = x;
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pos_y[i] = y;
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e_x[i] = init_e_unit_x;
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e_y[i] = init_e_unit_y;
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v_max[i] = v_m;
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desired_v0[i] = d_v0;
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destination_x[i] = dest_x;
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destination_y[i] = dest_y;
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w_x[i] = 0.0f;
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w_y[i] = 0.0f;
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curr_vel_x[i] = 0.0f;
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curr_vel_y[i] = 0.0f;
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sb_sq[i] = 0.0f;
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sb_e_x[i] = 0.0f;
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sb_e_y[i] = 0.0f;
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}
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return nullptr;
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}
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Board init_board_without_obstacles() { return Board(BOARD_LENGTH, BOARD_WIDTH, 0, nullptr); }
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int run_simulation(Pedestrian *pedestrians, Board &board, int n_p, int n_iter, const char *dump_path) {
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(void)pedestrians;
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#if BENCHMARK
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(void)dump_path;
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#endif
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#if !BENCHMARK
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const int dump_interval = 1;
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vector<tuple<int, int, float, float, float, float, int>> samples;
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if (dump_path) {
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samples.reserve(static_cast<size_t>(n_iter / dump_interval + 1) * n_p);
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for (int i = 0; i < n_p; i++) {
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samples.emplace_back(0, i, pos_x[i], pos_y[i], e_x[i], e_y[i], color[i]);
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}
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}
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#endif
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vector<float> r_ab_x_lut(n_p * n_p, 0.0);
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vector<float> r_ab_y_lut(n_p * n_p, 0.0);
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vector<float> r_ab_norm_lut(n_p * n_p, 0.0);
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// FLOPCOUNT (everything inside the t-loop). EXP kept as its own op (one real exp() per call).
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// section costs: overhead 4 ADD 4 MULT (+ reductions 4*K = 32 ADD, K=8) |
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// distance pair 3 ADD 2 MULT 1 SQRT |
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// ped-ped j 11 ADD 22 MULT 2 SQRT 1 DIV 1 EXP |
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// obstacle 10 ADD 13 MULT 1 SQRT 1 DIV 1 EXP | update 7 ADD 17 MULT 3 SQRT 2 DIV
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// # ADDs: n_iter * (
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// # n_p * 36 +
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// # 0.5 * (n_p*n_p - n_p) * 3 +
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// # n_p * (n_p - 1) * 11 +
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// # n_p * board.n_obstacles * 10 +
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// # n_p * 7
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// # )
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// # MULTs: n_iter * (
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// # n_p * 4 +
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// # 0.5 * (n_p*n_p - n_p) * 2 +
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// # n_p * (n_p - 1) * 22 +
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// # n_p * board.n_obstacles * 13 +
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// # n_p * 17
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// # )
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// # DIVs: n_iter * (
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// # n_p * (n_p - 1) +
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// # n_p * board.n_obstacles +
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// # n_p * 2
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// # )
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// # SQRTs: n_iter * (
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// # 0.5 * (n_p*n_p - n_p) +
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// # n_p * (n_p - 1) * 2 +
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// # n_p * board.n_obstacles +
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// # n_p * 3
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// # )
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// # EXPs: n_iter * (
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// # n_p * (n_p - 1) +
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// # n_p * board.n_obstacles
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// # )
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// total with EXP = 30: n_iter * ( 69 * n_p ** 2 + 55 * n_obstacles * n_p ) // linear term cancels
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for (int t = 0; t < n_iter; t++) {
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for (int i = 0; i < n_p; i++) {
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// # 1 MULT
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float desired_velocity_x = e_x[i] * desired_v0[i];
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// # 1 MULT
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float desired_velocity_y = e_y[i] * desired_v0[i];
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// # 1 ADD, 1 MULT
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float f_alpha_dt_x = (desired_velocity_x - curr_vel_x[i]) * dt_times_tau_alpha_inv;
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// # 1 ADD, 1 MULT
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float f_alpha_dt_y = (desired_velocity_y - curr_vel_y[i]) * dt_times_tau_alpha_inv;
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float e_x_i = e_x[i];
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float e_y_i = e_y[i];
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float pos_x_i = pos_x[i];
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float pos_y_i = pos_y[i];
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// distance precompute, # each pair: 6 FLOPS, total over all i = 0.5*(n_p*n_p - n_p)*6
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for (int j = i + 1; j < n_p; j++) {
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// # 1 ADD
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float dx = pos_x_i - pos_x[j];
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// # 1 ADD
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float dy = pos_y_i - pos_y[j];
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// # 1 ADD, 2 MULTs, 1 SQRT
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float norm = sqrt(dx * dx + dy * dy);
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int idx = i * n_p + j;
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r_ab_x_lut[idx] = dx;
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r_ab_y_lut[idx] = dy;
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r_ab_norm_lut[idx] = norm;
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}
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int j;
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float acc_x_0 = 0.0f, acc_x_1 = 0.0f, acc_x_2 = 0.0f, acc_x_3 = 0.0f;
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float acc_x_4 = 0.0f, acc_x_5 = 0.0f, acc_x_6 = 0.0f, acc_x_7 = 0.0f;
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float acc_y_0 = 0.0f, acc_y_1 = 0.0f, acc_y_2 = 0.0f, acc_y_3 = 0.0f;
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float acc_y_4 = 0.0f, acc_y_5 = 0.0f, acc_y_6 = 0.0f, acc_y_7 = 0.0f;
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// ILP over the j < i half. # each lane = 66 FLOPS (per-line breakdown is the
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// same as the single-lane remainder loop below), K = 8 lanes per step
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for (j = 0; j + 8 < i; j += 8) {
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float r_ab_x_0 = -1 * r_ab_x_lut[j * n_p + i];
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float r_ab_x_1 = -1 * r_ab_x_lut[(j + 1) * n_p + i];
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float r_ab_x_2 = -1 * r_ab_x_lut[(j + 2) * n_p + i];
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float r_ab_x_3 = -1 * r_ab_x_lut[(j + 3) * n_p + i];
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float r_ab_x_4 = -1 * r_ab_x_lut[(j + 4) * n_p + i];
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float r_ab_x_5 = -1 * r_ab_x_lut[(j + 5) * n_p + i];
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float r_ab_x_6 = -1 * r_ab_x_lut[(j + 6) * n_p + i];
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float r_ab_x_7 = -1 * r_ab_x_lut[(j + 7) * n_p + i];
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float r_ab_y_0 = -1 * r_ab_y_lut[j * n_p + i];
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float r_ab_y_1 = -1 * r_ab_y_lut[(j + 1) * n_p + i];
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float r_ab_y_2 = -1 * r_ab_y_lut[(j + 2) * n_p + i];
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float r_ab_y_3 = -1 * r_ab_y_lut[(j + 3) * n_p + i];
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float r_ab_y_4 = -1 * r_ab_y_lut[(j + 4) * n_p + i];
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float r_ab_y_5 = -1 * r_ab_y_lut[(j + 5) * n_p + i];
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float r_ab_y_6 = -1 * r_ab_y_lut[(j + 6) * n_p + i];
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float r_ab_y_7 = -1 * r_ab_y_lut[(j + 7) * n_p + i];
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float r_ab_norm_0 = r_ab_norm_lut[j * n_p + i];
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float r_ab_norm_1 = r_ab_norm_lut[(j + 1) * n_p + i];
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float r_ab_norm_2 = r_ab_norm_lut[(j + 2) * n_p + i];
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float r_ab_norm_3 = r_ab_norm_lut[(j + 3) * n_p + i];
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float r_ab_norm_4 = r_ab_norm_lut[(j + 4) * n_p + i];
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float r_ab_norm_5 = r_ab_norm_lut[(j + 5) * n_p + i];
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float r_ab_norm_6 = r_ab_norm_lut[(j + 6) * n_p + i];
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float r_ab_norm_7 = r_ab_norm_lut[(j + 7) * n_p + i];
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r_ab_norm_0 = r_ab_norm_0 > EPS ? r_ab_norm_0 : EPS;
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r_ab_norm_1 = r_ab_norm_1 > EPS ? r_ab_norm_1 : EPS;
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r_ab_norm_2 = r_ab_norm_2 > EPS ? r_ab_norm_2 : EPS;
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r_ab_norm_3 = r_ab_norm_3 > EPS ? r_ab_norm_3 : EPS;
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r_ab_norm_4 = r_ab_norm_4 > EPS ? r_ab_norm_4 : EPS;
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r_ab_norm_5 = r_ab_norm_5 > EPS ? r_ab_norm_5 : EPS;
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r_ab_norm_6 = r_ab_norm_6 > EPS ? r_ab_norm_6 : EPS;
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r_ab_norm_7 = r_ab_norm_7 > EPS ? r_ab_norm_7 : EPS;
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float r_ab2_x_0 = r_ab_x_0 - sb_e_x[j];
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float r_ab2_x_1 = r_ab_x_1 - sb_e_x[j + 1];
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float r_ab2_x_2 = r_ab_x_2 - sb_e_x[j + 2];
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float r_ab2_x_3 = r_ab_x_3 - sb_e_x[j + 3];
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float r_ab2_x_4 = r_ab_x_4 - sb_e_x[j + 4];
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float r_ab2_x_5 = r_ab_x_5 - sb_e_x[j + 5];
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float r_ab2_x_6 = r_ab_x_6 - sb_e_x[j + 6];
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float r_ab2_x_7 = r_ab_x_7 - sb_e_x[j + 7];
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float r_ab2_y_0 = r_ab_y_0 - sb_e_y[j];
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float r_ab2_y_1 = r_ab_y_1 - sb_e_y[j + 1];
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float r_ab2_y_2 = r_ab_y_2 - sb_e_y[j + 2];
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float r_ab2_y_3 = r_ab_y_3 - sb_e_y[j + 3];
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float r_ab2_y_4 = r_ab_y_4 - sb_e_y[j + 4];
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float r_ab2_y_5 = r_ab_y_5 - sb_e_y[j + 5];
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float r_ab2_y_6 = r_ab_y_6 - sb_e_y[j + 6];
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float r_ab2_y_7 = r_ab_y_7 - sb_e_y[j + 7];
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float r_ab2_norm_0 = sqrt(r_ab2_x_0 * r_ab2_x_0 + r_ab2_y_0 * r_ab2_y_0);
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float r_ab2_norm_1 = sqrt(r_ab2_x_1 * r_ab2_x_1 + r_ab2_y_1 * r_ab2_y_1);
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float r_ab2_norm_2 = sqrt(r_ab2_x_2 * r_ab2_x_2 + r_ab2_y_2 * r_ab2_y_2);
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float r_ab2_norm_3 = sqrt(r_ab2_x_3 * r_ab2_x_3 + r_ab2_y_3 * r_ab2_y_3);
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float r_ab2_norm_4 = sqrt(r_ab2_x_4 * r_ab2_x_4 + r_ab2_y_4 * r_ab2_y_4);
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float r_ab2_norm_5 = sqrt(r_ab2_x_5 * r_ab2_x_5 + r_ab2_y_5 * r_ab2_y_5);
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float r_ab2_norm_6 = sqrt(r_ab2_x_6 * r_ab2_x_6 + r_ab2_y_6 * r_ab2_y_6);
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float r_ab2_norm_7 = sqrt(r_ab2_x_7 * r_ab2_x_7 + r_ab2_y_7 * r_ab2_y_7);
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r_ab2_norm_0 = r_ab2_norm_0 > EPS ? r_ab2_norm_0 : EPS;
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r_ab2_norm_1 = r_ab2_norm_1 > EPS ? r_ab2_norm_1 : EPS;
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r_ab2_norm_2 = r_ab2_norm_2 > EPS ? r_ab2_norm_2 : EPS;
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r_ab2_norm_3 = r_ab2_norm_3 > EPS ? r_ab2_norm_3 : EPS;
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r_ab2_norm_4 = r_ab2_norm_4 > EPS ? r_ab2_norm_4 : EPS;
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r_ab2_norm_5 = r_ab2_norm_5 > EPS ? r_ab2_norm_5 : EPS;
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r_ab2_norm_6 = r_ab2_norm_6 > EPS ? r_ab2_norm_6 : EPS;
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r_ab2_norm_7 = r_ab2_norm_7 > EPS ? r_ab2_norm_7 : EPS;
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float r_ab_norm_sum_0 = r_ab_norm_0 + r_ab2_norm_0;
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float r_ab_norm_sum_1 = r_ab_norm_1 + r_ab2_norm_1;
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float r_ab_norm_sum_2 = r_ab_norm_2 + r_ab2_norm_2;
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float r_ab_norm_sum_3 = r_ab_norm_3 + r_ab2_norm_3;
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float r_ab_norm_sum_4 = r_ab_norm_4 + r_ab2_norm_4;
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float r_ab_norm_sum_5 = r_ab_norm_5 + r_ab2_norm_5;
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float r_ab_norm_sum_6 = r_ab_norm_6 + r_ab2_norm_6;
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float r_ab_norm_sum_7 = r_ab_norm_7 + r_ab2_norm_7;
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float two_b_sq_0 = r_ab_norm_sum_0 * r_ab_norm_sum_0 - sb_sq[j];
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float two_b_sq_1 = r_ab_norm_sum_1 * r_ab_norm_sum_1 - sb_sq[j + 1];
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float two_b_sq_2 = r_ab_norm_sum_2 * r_ab_norm_sum_2 - sb_sq[j + 2];
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float two_b_sq_3 = r_ab_norm_sum_3 * r_ab_norm_sum_3 - sb_sq[j + 3];
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float two_b_sq_4 = r_ab_norm_sum_4 * r_ab_norm_sum_4 - sb_sq[j + 4];
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float two_b_sq_5 = r_ab_norm_sum_5 * r_ab_norm_sum_5 - sb_sq[j + 5];
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float two_b_sq_6 = r_ab_norm_sum_6 * r_ab_norm_sum_6 - sb_sq[j + 6];
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float two_b_sq_7 = r_ab_norm_sum_7 * r_ab_norm_sum_7 - sb_sq[j + 7];
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two_b_sq_0 = two_b_sq_0 > EPS_SQ ? two_b_sq_0 : EPS_SQ;
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|
two_b_sq_1 = two_b_sq_1 > EPS_SQ ? two_b_sq_1 : EPS_SQ;
|
|
two_b_sq_2 = two_b_sq_2 > EPS_SQ ? two_b_sq_2 : EPS_SQ;
|
|
two_b_sq_3 = two_b_sq_3 > EPS_SQ ? two_b_sq_3 : EPS_SQ;
|
|
two_b_sq_4 = two_b_sq_4 > EPS_SQ ? two_b_sq_4 : EPS_SQ;
|
|
two_b_sq_5 = two_b_sq_5 > EPS_SQ ? two_b_sq_5 : EPS_SQ;
|
|
two_b_sq_6 = two_b_sq_6 > EPS_SQ ? two_b_sq_6 : EPS_SQ;
|
|
two_b_sq_7 = two_b_sq_7 > EPS_SQ ? two_b_sq_7 : EPS_SQ;
|
|
|
|
float two_b_0 = sqrt(two_b_sq_0);
|
|
float two_b_1 = sqrt(two_b_sq_1);
|
|
float two_b_2 = sqrt(two_b_sq_2);
|
|
float two_b_3 = sqrt(two_b_sq_3);
|
|
float two_b_4 = sqrt(two_b_sq_4);
|
|
float two_b_5 = sqrt(two_b_sq_5);
|
|
float two_b_6 = sqrt(two_b_sq_6);
|
|
float two_b_7 = sqrt(two_b_sq_7);
|
|
|
|
float scalar_mult_common_0 = (r_ab_norm_sum_0 / (two_b_0 * r_ab_norm_0 * r_ab2_norm_0)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_0 * NEG_TWO_SIGMA_INV));
|
|
float scalar_mult_common_1 = (r_ab_norm_sum_1 / (two_b_1 * r_ab_norm_1 * r_ab2_norm_1)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_1 * NEG_TWO_SIGMA_INV));
|
|
float scalar_mult_common_2 = (r_ab_norm_sum_2 / (two_b_2 * r_ab_norm_2 * r_ab2_norm_2)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_2 * NEG_TWO_SIGMA_INV));
|
|
float scalar_mult_common_3 = (r_ab_norm_sum_3 / (two_b_3 * r_ab_norm_3 * r_ab2_norm_3)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_3 * NEG_TWO_SIGMA_INV));
|
|
float scalar_mult_common_4 = (r_ab_norm_sum_4 / (two_b_4 * r_ab_norm_4 * r_ab2_norm_4)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_4 * NEG_TWO_SIGMA_INV));
|
|
float scalar_mult_common_5 = (r_ab_norm_sum_5 / (two_b_5 * r_ab_norm_5 * r_ab2_norm_5)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_5 * NEG_TWO_SIGMA_INV));
|
|
float scalar_mult_common_6 = (r_ab_norm_sum_6 / (two_b_6 * r_ab_norm_6 * r_ab2_norm_6)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_6 * NEG_TWO_SIGMA_INV));
|
|
float scalar_mult_common_7 = (r_ab_norm_sum_7 / (two_b_7 * r_ab_norm_7 * r_ab2_norm_7)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_7 * NEG_TWO_SIGMA_INV));
|
|
|
|
float scalar_mult_r_ab_0 = scalar_mult_common_0 * r_ab2_norm_0;
|
|
float scalar_mult_r_ab_1 = scalar_mult_common_1 * r_ab2_norm_1;
|
|
float scalar_mult_r_ab_2 = scalar_mult_common_2 * r_ab2_norm_2;
|
|
float scalar_mult_r_ab_3 = scalar_mult_common_3 * r_ab2_norm_3;
|
|
float scalar_mult_r_ab_4 = scalar_mult_common_4 * r_ab2_norm_4;
|
|
float scalar_mult_r_ab_5 = scalar_mult_common_5 * r_ab2_norm_5;
|
|
float scalar_mult_r_ab_6 = scalar_mult_common_6 * r_ab2_norm_6;
|
|
float scalar_mult_r_ab_7 = scalar_mult_common_7 * r_ab2_norm_7;
|
|
|
|
float scalar_mult_r_ab2_0 = scalar_mult_common_0 * r_ab_norm_0;
|
|
float scalar_mult_r_ab2_1 = scalar_mult_common_1 * r_ab_norm_1;
|
|
float scalar_mult_r_ab2_2 = scalar_mult_common_2 * r_ab_norm_2;
|
|
float scalar_mult_r_ab2_3 = scalar_mult_common_3 * r_ab_norm_3;
|
|
float scalar_mult_r_ab2_4 = scalar_mult_common_4 * r_ab_norm_4;
|
|
float scalar_mult_r_ab2_5 = scalar_mult_common_5 * r_ab_norm_5;
|
|
float scalar_mult_r_ab2_6 = scalar_mult_common_6 * r_ab_norm_6;
|
|
float scalar_mult_r_ab2_7 = scalar_mult_common_7 * r_ab_norm_7;
|
|
|
|
float f_alpha_beta_neg_x_0 = r_ab_x_0 * scalar_mult_r_ab_0 + r_ab2_x_0 * scalar_mult_r_ab2_0;
|
|
float f_alpha_beta_neg_x_1 = r_ab_x_1 * scalar_mult_r_ab_1 + r_ab2_x_1 * scalar_mult_r_ab2_1;
|
|
float f_alpha_beta_neg_x_2 = r_ab_x_2 * scalar_mult_r_ab_2 + r_ab2_x_2 * scalar_mult_r_ab2_2;
|
|
float f_alpha_beta_neg_x_3 = r_ab_x_3 * scalar_mult_r_ab_3 + r_ab2_x_3 * scalar_mult_r_ab2_3;
|
|
float f_alpha_beta_neg_x_4 = r_ab_x_4 * scalar_mult_r_ab_4 + r_ab2_x_4 * scalar_mult_r_ab2_4;
|
|
float f_alpha_beta_neg_x_5 = r_ab_x_5 * scalar_mult_r_ab_5 + r_ab2_x_5 * scalar_mult_r_ab2_5;
|
|
float f_alpha_beta_neg_x_6 = r_ab_x_6 * scalar_mult_r_ab_6 + r_ab2_x_6 * scalar_mult_r_ab2_6;
|
|
float f_alpha_beta_neg_x_7 = r_ab_x_7 * scalar_mult_r_ab_7 + r_ab2_x_7 * scalar_mult_r_ab2_7;
|
|
|
|
float f_alpha_beta_neg_y_0 = r_ab_y_0 * scalar_mult_r_ab_0 + r_ab2_y_0 * scalar_mult_r_ab2_0;
|
|
float f_alpha_beta_neg_y_1 = r_ab_y_1 * scalar_mult_r_ab_1 + r_ab2_y_1 * scalar_mult_r_ab2_1;
|
|
float f_alpha_beta_neg_y_2 = r_ab_y_2 * scalar_mult_r_ab_2 + r_ab2_y_2 * scalar_mult_r_ab2_2;
|
|
float f_alpha_beta_neg_y_3 = r_ab_y_3 * scalar_mult_r_ab_3 + r_ab2_y_3 * scalar_mult_r_ab2_3;
|
|
float f_alpha_beta_neg_y_4 = r_ab_y_4 * scalar_mult_r_ab_4 + r_ab2_y_4 * scalar_mult_r_ab2_4;
|
|
float f_alpha_beta_neg_y_5 = r_ab_y_5 * scalar_mult_r_ab_5 + r_ab2_y_5 * scalar_mult_r_ab2_5;
|
|
float f_alpha_beta_neg_y_6 = r_ab_y_6 * scalar_mult_r_ab_6 + r_ab2_y_6 * scalar_mult_r_ab2_6;
|
|
float f_alpha_beta_neg_y_7 = r_ab_y_7 * scalar_mult_r_ab_7 + r_ab2_y_7 * scalar_mult_r_ab2_7;
|
|
|
|
float w_val_0, w_val_1, w_val_2, w_val_3, w_val_4, w_val_5, w_val_6, w_val_7;
|
|
|
|
float f_norm_sq_0 = f_alpha_beta_neg_x_0 * f_alpha_beta_neg_x_0 + f_alpha_beta_neg_y_0 * f_alpha_beta_neg_y_0;
|
|
float f_norm_sq_1 = f_alpha_beta_neg_x_1 * f_alpha_beta_neg_x_1 + f_alpha_beta_neg_y_1 * f_alpha_beta_neg_y_1;
|
|
float f_norm_sq_2 = f_alpha_beta_neg_x_2 * f_alpha_beta_neg_x_2 + f_alpha_beta_neg_y_2 * f_alpha_beta_neg_y_2;
|
|
float f_norm_sq_3 = f_alpha_beta_neg_x_3 * f_alpha_beta_neg_x_3 + f_alpha_beta_neg_y_3 * f_alpha_beta_neg_y_3;
|
|
float f_norm_sq_4 = f_alpha_beta_neg_x_4 * f_alpha_beta_neg_x_4 + f_alpha_beta_neg_y_4 * f_alpha_beta_neg_y_4;
|
|
float f_norm_sq_5 = f_alpha_beta_neg_x_5 * f_alpha_beta_neg_x_5 + f_alpha_beta_neg_y_5 * f_alpha_beta_neg_y_5;
|
|
float f_norm_sq_6 = f_alpha_beta_neg_x_6 * f_alpha_beta_neg_x_6 + f_alpha_beta_neg_y_6 * f_alpha_beta_neg_y_6;
|
|
float f_norm_sq_7 = f_alpha_beta_neg_x_7 * f_alpha_beta_neg_x_7 + f_alpha_beta_neg_y_7 * f_alpha_beta_neg_y_7;
|
|
|
|
float rhs_0 = f_norm_sq_0 * cos_phi_sq;
|
|
float rhs_1 = f_norm_sq_1 * cos_phi_sq;
|
|
float rhs_2 = f_norm_sq_2 * cos_phi_sq;
|
|
float rhs_3 = f_norm_sq_3 * cos_phi_sq;
|
|
float rhs_4 = f_norm_sq_4 * cos_phi_sq;
|
|
float rhs_5 = f_norm_sq_5 * cos_phi_sq;
|
|
float rhs_6 = f_norm_sq_6 * cos_phi_sq;
|
|
float rhs_7 = f_norm_sq_7 * cos_phi_sq;
|
|
|
|
float e_dot_f_0 = e_x_i * f_alpha_beta_neg_x_0 + e_y_i * f_alpha_beta_neg_y_0;
|
|
float e_dot_f_1 = e_x_i * f_alpha_beta_neg_x_1 + e_y_i * f_alpha_beta_neg_y_1;
|
|
float e_dot_f_2 = e_x_i * f_alpha_beta_neg_x_2 + e_y_i * f_alpha_beta_neg_y_2;
|
|
float e_dot_f_3 = e_x_i * f_alpha_beta_neg_x_3 + e_y_i * f_alpha_beta_neg_y_3;
|
|
float e_dot_f_4 = e_x_i * f_alpha_beta_neg_x_4 + e_y_i * f_alpha_beta_neg_y_4;
|
|
float e_dot_f_5 = e_x_i * f_alpha_beta_neg_x_5 + e_y_i * f_alpha_beta_neg_y_5;
|
|
float e_dot_f_6 = e_x_i * f_alpha_beta_neg_x_6 + e_y_i * f_alpha_beta_neg_y_6;
|
|
float e_dot_f_7 = e_x_i * f_alpha_beta_neg_x_7 + e_y_i * f_alpha_beta_neg_y_7;
|
|
|
|
float e_dot_f_sq_0 = e_dot_f_0 * e_dot_f_0;
|
|
float e_dot_f_sq_1 = e_dot_f_1 * e_dot_f_1;
|
|
float e_dot_f_sq_2 = e_dot_f_2 * e_dot_f_2;
|
|
float e_dot_f_sq_3 = e_dot_f_3 * e_dot_f_3;
|
|
float e_dot_f_sq_4 = e_dot_f_4 * e_dot_f_4;
|
|
float e_dot_f_sq_5 = e_dot_f_5 * e_dot_f_5;
|
|
float e_dot_f_sq_6 = e_dot_f_6 * e_dot_f_6;
|
|
float e_dot_f_sq_7 = e_dot_f_7 * e_dot_f_7;
|
|
|
|
if (e_dot_f_0 >= 0.0 || e_dot_f_sq_0 <= rhs_0)
|
|
w_val_0 = dt_neg;
|
|
else
|
|
w_val_0 = c_neg_times_dt;
|
|
if (e_dot_f_1 >= 0.0 || e_dot_f_sq_1 <= rhs_1)
|
|
w_val_1 = dt_neg;
|
|
else
|
|
w_val_1 = c_neg_times_dt;
|
|
if (e_dot_f_2 >= 0.0 || e_dot_f_sq_2 <= rhs_2)
|
|
w_val_2 = dt_neg;
|
|
else
|
|
w_val_2 = c_neg_times_dt;
|
|
if (e_dot_f_3 >= 0.0 || e_dot_f_sq_3 <= rhs_3)
|
|
w_val_3 = dt_neg;
|
|
else
|
|
w_val_3 = c_neg_times_dt;
|
|
if (e_dot_f_4 >= 0.0 || e_dot_f_sq_4 <= rhs_4)
|
|
w_val_4 = dt_neg;
|
|
else
|
|
w_val_4 = c_neg_times_dt;
|
|
if (e_dot_f_5 >= 0.0 || e_dot_f_sq_5 <= rhs_5)
|
|
w_val_5 = dt_neg;
|
|
else
|
|
w_val_5 = c_neg_times_dt;
|
|
if (e_dot_f_6 >= 0.0 || e_dot_f_sq_6 <= rhs_6)
|
|
w_val_6 = dt_neg;
|
|
else
|
|
w_val_6 = c_neg_times_dt;
|
|
if (e_dot_f_7 >= 0.0 || e_dot_f_sq_7 <= rhs_7)
|
|
w_val_7 = dt_neg;
|
|
else
|
|
w_val_7 = c_neg_times_dt;
|
|
|
|
acc_x_0 += f_alpha_beta_neg_x_0 * w_val_0;
|
|
acc_x_1 += f_alpha_beta_neg_x_1 * w_val_1;
|
|
acc_x_2 += f_alpha_beta_neg_x_2 * w_val_2;
|
|
acc_x_3 += f_alpha_beta_neg_x_3 * w_val_3;
|
|
acc_x_4 += f_alpha_beta_neg_x_4 * w_val_4;
|
|
acc_x_5 += f_alpha_beta_neg_x_5 * w_val_5;
|
|
acc_x_6 += f_alpha_beta_neg_x_6 * w_val_6;
|
|
acc_x_7 += f_alpha_beta_neg_x_7 * w_val_7;
|
|
acc_y_0 += f_alpha_beta_neg_y_0 * w_val_0;
|
|
acc_y_1 += f_alpha_beta_neg_y_1 * w_val_1;
|
|
acc_y_2 += f_alpha_beta_neg_y_2 * w_val_2;
|
|
acc_y_3 += f_alpha_beta_neg_y_3 * w_val_3;
|
|
acc_y_4 += f_alpha_beta_neg_y_4 * w_val_4;
|
|
acc_y_5 += f_alpha_beta_neg_y_5 * w_val_5;
|
|
acc_y_6 += f_alpha_beta_neg_y_6 * w_val_6;
|
|
acc_y_7 += f_alpha_beta_neg_y_7 * w_val_7;
|
|
}
|
|
|
|
// remainder of the j < i half, single lane. # one j = 66 FLOPS
|
|
for (; j < i; j++) {
|
|
// lut lookup + -1* sign flip: not counted
|
|
float r_ab_x = -1 * r_ab_x_lut[j * n_p + i];
|
|
float r_ab_y = -1 * r_ab_y_lut[j * n_p + i];
|
|
float r_ab_norm = r_ab_norm_lut[j * n_p + i];
|
|
|
|
r_ab_norm = r_ab_norm > EPS ? r_ab_norm : EPS;
|
|
|
|
// # 1 ADD
|
|
float r_ab2_x = r_ab_x - sb_e_x[j];
|
|
// # 1 ADD
|
|
float r_ab2_y = r_ab_y - sb_e_y[j];
|
|
|
|
// # 1 ADD, 2 MULTs, 1 SQRT
|
|
float r_ab2_norm = sqrt(r_ab2_x * r_ab2_x + r_ab2_y * r_ab2_y);
|
|
r_ab2_norm = r_ab2_norm > EPS ? r_ab2_norm : EPS;
|
|
|
|
// # 1 ADD
|
|
float r_ab_norm_sum = r_ab_norm + r_ab2_norm;
|
|
|
|
// # 1 ADD, 1 MULT
|
|
float two_b_sq = r_ab_norm_sum * r_ab_norm_sum - sb_sq[j];
|
|
two_b_sq = two_b_sq > EPS_SQ ? two_b_sq : EPS_SQ;
|
|
// # 1 SQRT
|
|
float two_b = sqrt(two_b_sq);
|
|
// # 5 MULTs, 1 DIV, 1 EXP (= 36 FLOPS with EXP=30)
|
|
float scalar_mult_common = (r_ab_norm_sum / (two_b * r_ab_norm * r_ab2_norm)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b * NEG_TWO_SIGMA_INV));
|
|
// # 1 MULT
|
|
float scalar_mult_r_ab = scalar_mult_common * r_ab2_norm;
|
|
// # 1 MULT
|
|
float scalar_mult_r_ab2 = scalar_mult_common * r_ab_norm;
|
|
|
|
// # 1 ADD, 2 MULTs
|
|
float f_alpha_beta_neg_x = r_ab_x * scalar_mult_r_ab + r_ab2_x * scalar_mult_r_ab2;
|
|
// # 1 ADD, 2 MULTs
|
|
float f_alpha_beta_neg_y = r_ab_y * scalar_mult_r_ab + r_ab2_y * scalar_mult_r_ab2;
|
|
|
|
float w_val;
|
|
|
|
// # 1 ADD, 2 MULTs
|
|
float f_norm_sq = f_alpha_beta_neg_x * f_alpha_beta_neg_x + f_alpha_beta_neg_y * f_alpha_beta_neg_y;
|
|
// # 1 MULT
|
|
float rhs = f_norm_sq * cos_phi_sq;
|
|
// # 1 ADD, 2 MULTs
|
|
float e_dot_f = e_x[i] * f_alpha_beta_neg_x + e_y[i] * f_alpha_beta_neg_y;
|
|
// # 1 MULT
|
|
float e_dot_f_sq = e_dot_f * e_dot_f;
|
|
if (e_dot_f >= 0.0 || e_dot_f_sq <= rhs)
|
|
w_val = dt_neg;
|
|
else
|
|
w_val = c_neg_times_dt;
|
|
|
|
// # 1 ADD, 1 MULT
|
|
f_alpha_dt_x += f_alpha_beta_neg_x * w_val;
|
|
// # 1 ADD, 1 MULT
|
|
f_alpha_dt_y += f_alpha_beta_neg_y * w_val;
|
|
}
|
|
|
|
// reduction of the j < i accumulators. # K adds per line (K=8) => 16 ADDs
|
|
f_alpha_dt_x += acc_x_0 + acc_x_1 + acc_x_2 + acc_x_3 + acc_x_4 + acc_x_5 + acc_x_6 + acc_x_7;
|
|
f_alpha_dt_y += acc_y_0 + acc_y_1 + acc_y_2 + acc_y_3 + acc_y_4 + acc_y_5 + acc_y_6 + acc_y_7;
|
|
|
|
acc_x_0 = 0.0f;
|
|
acc_x_1 = 0.0f;
|
|
acc_x_2 = 0.0f;
|
|
acc_x_3 = 0.0f;
|
|
acc_x_4 = 0.0f;
|
|
acc_x_5 = 0.0f;
|
|
acc_x_6 = 0.0f;
|
|
acc_x_7 = 0.0f;
|
|
acc_y_0 = 0.0f;
|
|
acc_y_1 = 0.0f;
|
|
acc_y_2 = 0.0f;
|
|
acc_y_3 = 0.0f;
|
|
acc_y_4 = 0.0f;
|
|
acc_y_5 = 0.0f;
|
|
acc_y_6 = 0.0f;
|
|
acc_y_7 = 0.0f;
|
|
|
|
// ILP over the j > i half. # each lane = 66 FLOPS, K = 8 lanes per step
|
|
for (j = i + 1; j + 8 < n_p; j += 8) {
|
|
float r_ab_x_0 = r_ab_x_lut[i * n_p + j];
|
|
float r_ab_x_1 = r_ab_x_lut[i * n_p + j + 1];
|
|
float r_ab_x_2 = r_ab_x_lut[i * n_p + j + 2];
|
|
float r_ab_x_3 = r_ab_x_lut[i * n_p + j + 3];
|
|
float r_ab_x_4 = r_ab_x_lut[i * n_p + j + 4];
|
|
float r_ab_x_5 = r_ab_x_lut[i * n_p + j + 5];
|
|
float r_ab_x_6 = r_ab_x_lut[i * n_p + j + 6];
|
|
float r_ab_x_7 = r_ab_x_lut[i * n_p + j + 7];
|
|
|
|
float r_ab_y_0 = r_ab_y_lut[i * n_p + j];
|
|
float r_ab_y_1 = r_ab_y_lut[i * n_p + j + 1];
|
|
float r_ab_y_2 = r_ab_y_lut[i * n_p + j + 2];
|
|
float r_ab_y_3 = r_ab_y_lut[i * n_p + j + 3];
|
|
float r_ab_y_4 = r_ab_y_lut[i * n_p + j + 4];
|
|
float r_ab_y_5 = r_ab_y_lut[i * n_p + j + 5];
|
|
float r_ab_y_6 = r_ab_y_lut[i * n_p + j + 6];
|
|
float r_ab_y_7 = r_ab_y_lut[i * n_p + j + 7];
|
|
|
|
float r_ab_norm_0 = r_ab_norm_lut[i * n_p + j];
|
|
float r_ab_norm_1 = r_ab_norm_lut[i * n_p + j + 1];
|
|
float r_ab_norm_2 = r_ab_norm_lut[i * n_p + j + 2];
|
|
float r_ab_norm_3 = r_ab_norm_lut[i * n_p + j + 3];
|
|
float r_ab_norm_4 = r_ab_norm_lut[i * n_p + j + 4];
|
|
float r_ab_norm_5 = r_ab_norm_lut[i * n_p + j + 5];
|
|
float r_ab_norm_6 = r_ab_norm_lut[i * n_p + j + 6];
|
|
float r_ab_norm_7 = r_ab_norm_lut[i * n_p + j + 7];
|
|
|
|
r_ab_norm_0 = r_ab_norm_0 > EPS ? r_ab_norm_0 : EPS;
|
|
r_ab_norm_1 = r_ab_norm_1 > EPS ? r_ab_norm_1 : EPS;
|
|
r_ab_norm_2 = r_ab_norm_2 > EPS ? r_ab_norm_2 : EPS;
|
|
r_ab_norm_3 = r_ab_norm_3 > EPS ? r_ab_norm_3 : EPS;
|
|
r_ab_norm_4 = r_ab_norm_4 > EPS ? r_ab_norm_4 : EPS;
|
|
r_ab_norm_5 = r_ab_norm_5 > EPS ? r_ab_norm_5 : EPS;
|
|
r_ab_norm_6 = r_ab_norm_6 > EPS ? r_ab_norm_6 : EPS;
|
|
r_ab_norm_7 = r_ab_norm_7 > EPS ? r_ab_norm_7 : EPS;
|
|
|
|
float r_ab2_x_0 = r_ab_x_0 - sb_e_x[j];
|
|
float r_ab2_x_1 = r_ab_x_1 - sb_e_x[j + 1];
|
|
float r_ab2_x_2 = r_ab_x_2 - sb_e_x[j + 2];
|
|
float r_ab2_x_3 = r_ab_x_3 - sb_e_x[j + 3];
|
|
float r_ab2_x_4 = r_ab_x_4 - sb_e_x[j + 4];
|
|
float r_ab2_x_5 = r_ab_x_5 - sb_e_x[j + 5];
|
|
float r_ab2_x_6 = r_ab_x_6 - sb_e_x[j + 6];
|
|
float r_ab2_x_7 = r_ab_x_7 - sb_e_x[j + 7];
|
|
|
|
float r_ab2_y_0 = r_ab_y_0 - sb_e_y[j];
|
|
float r_ab2_y_1 = r_ab_y_1 - sb_e_y[j + 1];
|
|
float r_ab2_y_2 = r_ab_y_2 - sb_e_y[j + 2];
|
|
float r_ab2_y_3 = r_ab_y_3 - sb_e_y[j + 3];
|
|
float r_ab2_y_4 = r_ab_y_4 - sb_e_y[j + 4];
|
|
float r_ab2_y_5 = r_ab_y_5 - sb_e_y[j + 5];
|
|
float r_ab2_y_6 = r_ab_y_6 - sb_e_y[j + 6];
|
|
float r_ab2_y_7 = r_ab_y_7 - sb_e_y[j + 7];
|
|
|
|
float r_ab2_norm_0 = sqrt(r_ab2_x_0 * r_ab2_x_0 + r_ab2_y_0 * r_ab2_y_0);
|
|
float r_ab2_norm_1 = sqrt(r_ab2_x_1 * r_ab2_x_1 + r_ab2_y_1 * r_ab2_y_1);
|
|
float r_ab2_norm_2 = sqrt(r_ab2_x_2 * r_ab2_x_2 + r_ab2_y_2 * r_ab2_y_2);
|
|
float r_ab2_norm_3 = sqrt(r_ab2_x_3 * r_ab2_x_3 + r_ab2_y_3 * r_ab2_y_3);
|
|
float r_ab2_norm_4 = sqrt(r_ab2_x_4 * r_ab2_x_4 + r_ab2_y_4 * r_ab2_y_4);
|
|
float r_ab2_norm_5 = sqrt(r_ab2_x_5 * r_ab2_x_5 + r_ab2_y_5 * r_ab2_y_5);
|
|
float r_ab2_norm_6 = sqrt(r_ab2_x_6 * r_ab2_x_6 + r_ab2_y_6 * r_ab2_y_6);
|
|
float r_ab2_norm_7 = sqrt(r_ab2_x_7 * r_ab2_x_7 + r_ab2_y_7 * r_ab2_y_7);
|
|
|
|
r_ab2_norm_0 = r_ab2_norm_0 > EPS ? r_ab2_norm_0 : EPS;
|
|
r_ab2_norm_1 = r_ab2_norm_1 > EPS ? r_ab2_norm_1 : EPS;
|
|
r_ab2_norm_2 = r_ab2_norm_2 > EPS ? r_ab2_norm_2 : EPS;
|
|
r_ab2_norm_3 = r_ab2_norm_3 > EPS ? r_ab2_norm_3 : EPS;
|
|
r_ab2_norm_4 = r_ab2_norm_4 > EPS ? r_ab2_norm_4 : EPS;
|
|
r_ab2_norm_5 = r_ab2_norm_5 > EPS ? r_ab2_norm_5 : EPS;
|
|
r_ab2_norm_6 = r_ab2_norm_6 > EPS ? r_ab2_norm_6 : EPS;
|
|
r_ab2_norm_7 = r_ab2_norm_7 > EPS ? r_ab2_norm_7 : EPS;
|
|
|
|
float r_ab_norm_sum_0 = r_ab_norm_0 + r_ab2_norm_0;
|
|
float r_ab_norm_sum_1 = r_ab_norm_1 + r_ab2_norm_1;
|
|
float r_ab_norm_sum_2 = r_ab_norm_2 + r_ab2_norm_2;
|
|
float r_ab_norm_sum_3 = r_ab_norm_3 + r_ab2_norm_3;
|
|
float r_ab_norm_sum_4 = r_ab_norm_4 + r_ab2_norm_4;
|
|
float r_ab_norm_sum_5 = r_ab_norm_5 + r_ab2_norm_5;
|
|
float r_ab_norm_sum_6 = r_ab_norm_6 + r_ab2_norm_6;
|
|
float r_ab_norm_sum_7 = r_ab_norm_7 + r_ab2_norm_7;
|
|
|
|
float two_b_sq_0 = r_ab_norm_sum_0 * r_ab_norm_sum_0 - sb_sq[j];
|
|
float two_b_sq_1 = r_ab_norm_sum_1 * r_ab_norm_sum_1 - sb_sq[j + 1];
|
|
float two_b_sq_2 = r_ab_norm_sum_2 * r_ab_norm_sum_2 - sb_sq[j + 2];
|
|
float two_b_sq_3 = r_ab_norm_sum_3 * r_ab_norm_sum_3 - sb_sq[j + 3];
|
|
float two_b_sq_4 = r_ab_norm_sum_4 * r_ab_norm_sum_4 - sb_sq[j + 4];
|
|
float two_b_sq_5 = r_ab_norm_sum_5 * r_ab_norm_sum_5 - sb_sq[j + 5];
|
|
float two_b_sq_6 = r_ab_norm_sum_6 * r_ab_norm_sum_6 - sb_sq[j + 6];
|
|
float two_b_sq_7 = r_ab_norm_sum_7 * r_ab_norm_sum_7 - sb_sq[j + 7];
|
|
|
|
two_b_sq_0 = two_b_sq_0 > EPS_SQ ? two_b_sq_0 : EPS_SQ;
|
|
two_b_sq_1 = two_b_sq_1 > EPS_SQ ? two_b_sq_1 : EPS_SQ;
|
|
two_b_sq_2 = two_b_sq_2 > EPS_SQ ? two_b_sq_2 : EPS_SQ;
|
|
two_b_sq_3 = two_b_sq_3 > EPS_SQ ? two_b_sq_3 : EPS_SQ;
|
|
two_b_sq_4 = two_b_sq_4 > EPS_SQ ? two_b_sq_4 : EPS_SQ;
|
|
two_b_sq_5 = two_b_sq_5 > EPS_SQ ? two_b_sq_5 : EPS_SQ;
|
|
two_b_sq_6 = two_b_sq_6 > EPS_SQ ? two_b_sq_6 : EPS_SQ;
|
|
two_b_sq_7 = two_b_sq_7 > EPS_SQ ? two_b_sq_7 : EPS_SQ;
|
|
|
|
float two_b_0 = sqrt(two_b_sq_0);
|
|
float two_b_1 = sqrt(two_b_sq_1);
|
|
float two_b_2 = sqrt(two_b_sq_2);
|
|
float two_b_3 = sqrt(two_b_sq_3);
|
|
float two_b_4 = sqrt(two_b_sq_4);
|
|
float two_b_5 = sqrt(two_b_sq_5);
|
|
float two_b_6 = sqrt(two_b_sq_6);
|
|
float two_b_7 = sqrt(two_b_sq_7);
|
|
|
|
float scalar_mult_common_0 = (r_ab_norm_sum_0 / (two_b_0 * r_ab_norm_0 * r_ab2_norm_0)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_0 * NEG_TWO_SIGMA_INV));
|
|
float scalar_mult_common_1 = (r_ab_norm_sum_1 / (two_b_1 * r_ab_norm_1 * r_ab2_norm_1)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_1 * NEG_TWO_SIGMA_INV));
|
|
float scalar_mult_common_2 = (r_ab_norm_sum_2 / (two_b_2 * r_ab_norm_2 * r_ab2_norm_2)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_2 * NEG_TWO_SIGMA_INV));
|
|
float scalar_mult_common_3 = (r_ab_norm_sum_3 / (two_b_3 * r_ab_norm_3 * r_ab2_norm_3)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_3 * NEG_TWO_SIGMA_INV));
|
|
float scalar_mult_common_4 = (r_ab_norm_sum_4 / (two_b_4 * r_ab_norm_4 * r_ab2_norm_4)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_4 * NEG_TWO_SIGMA_INV));
|
|
float scalar_mult_common_5 = (r_ab_norm_sum_5 / (two_b_5 * r_ab_norm_5 * r_ab2_norm_5)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_5 * NEG_TWO_SIGMA_INV));
|
|
float scalar_mult_common_6 = (r_ab_norm_sum_6 / (two_b_6 * r_ab_norm_6 * r_ab2_norm_6)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_6 * NEG_TWO_SIGMA_INV));
|
|
float scalar_mult_common_7 = (r_ab_norm_sum_7 / (two_b_7 * r_ab_norm_7 * r_ab2_norm_7)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b_7 * NEG_TWO_SIGMA_INV));
|
|
|
|
float scalar_mult_r_ab_0 = scalar_mult_common_0 * r_ab2_norm_0;
|
|
float scalar_mult_r_ab_1 = scalar_mult_common_1 * r_ab2_norm_1;
|
|
float scalar_mult_r_ab_2 = scalar_mult_common_2 * r_ab2_norm_2;
|
|
float scalar_mult_r_ab_3 = scalar_mult_common_3 * r_ab2_norm_3;
|
|
float scalar_mult_r_ab_4 = scalar_mult_common_4 * r_ab2_norm_4;
|
|
float scalar_mult_r_ab_5 = scalar_mult_common_5 * r_ab2_norm_5;
|
|
float scalar_mult_r_ab_6 = scalar_mult_common_6 * r_ab2_norm_6;
|
|
float scalar_mult_r_ab_7 = scalar_mult_common_7 * r_ab2_norm_7;
|
|
|
|
float scalar_mult_r_ab2_0 = scalar_mult_common_0 * r_ab_norm_0;
|
|
float scalar_mult_r_ab2_1 = scalar_mult_common_1 * r_ab_norm_1;
|
|
float scalar_mult_r_ab2_2 = scalar_mult_common_2 * r_ab_norm_2;
|
|
float scalar_mult_r_ab2_3 = scalar_mult_common_3 * r_ab_norm_3;
|
|
float scalar_mult_r_ab2_4 = scalar_mult_common_4 * r_ab_norm_4;
|
|
float scalar_mult_r_ab2_5 = scalar_mult_common_5 * r_ab_norm_5;
|
|
float scalar_mult_r_ab2_6 = scalar_mult_common_6 * r_ab_norm_6;
|
|
float scalar_mult_r_ab2_7 = scalar_mult_common_7 * r_ab_norm_7;
|
|
|
|
float f_alpha_beta_neg_x_0 = r_ab_x_0 * scalar_mult_r_ab_0 + r_ab2_x_0 * scalar_mult_r_ab2_0;
|
|
float f_alpha_beta_neg_x_1 = r_ab_x_1 * scalar_mult_r_ab_1 + r_ab2_x_1 * scalar_mult_r_ab2_1;
|
|
float f_alpha_beta_neg_x_2 = r_ab_x_2 * scalar_mult_r_ab_2 + r_ab2_x_2 * scalar_mult_r_ab2_2;
|
|
float f_alpha_beta_neg_x_3 = r_ab_x_3 * scalar_mult_r_ab_3 + r_ab2_x_3 * scalar_mult_r_ab2_3;
|
|
float f_alpha_beta_neg_x_4 = r_ab_x_4 * scalar_mult_r_ab_4 + r_ab2_x_4 * scalar_mult_r_ab2_4;
|
|
float f_alpha_beta_neg_x_5 = r_ab_x_5 * scalar_mult_r_ab_5 + r_ab2_x_5 * scalar_mult_r_ab2_5;
|
|
float f_alpha_beta_neg_x_6 = r_ab_x_6 * scalar_mult_r_ab_6 + r_ab2_x_6 * scalar_mult_r_ab2_6;
|
|
float f_alpha_beta_neg_x_7 = r_ab_x_7 * scalar_mult_r_ab_7 + r_ab2_x_7 * scalar_mult_r_ab2_7;
|
|
|
|
float f_alpha_beta_neg_y_0 = r_ab_y_0 * scalar_mult_r_ab_0 + r_ab2_y_0 * scalar_mult_r_ab2_0;
|
|
float f_alpha_beta_neg_y_1 = r_ab_y_1 * scalar_mult_r_ab_1 + r_ab2_y_1 * scalar_mult_r_ab2_1;
|
|
float f_alpha_beta_neg_y_2 = r_ab_y_2 * scalar_mult_r_ab_2 + r_ab2_y_2 * scalar_mult_r_ab2_2;
|
|
float f_alpha_beta_neg_y_3 = r_ab_y_3 * scalar_mult_r_ab_3 + r_ab2_y_3 * scalar_mult_r_ab2_3;
|
|
float f_alpha_beta_neg_y_4 = r_ab_y_4 * scalar_mult_r_ab_4 + r_ab2_y_4 * scalar_mult_r_ab2_4;
|
|
float f_alpha_beta_neg_y_5 = r_ab_y_5 * scalar_mult_r_ab_5 + r_ab2_y_5 * scalar_mult_r_ab2_5;
|
|
float f_alpha_beta_neg_y_6 = r_ab_y_6 * scalar_mult_r_ab_6 + r_ab2_y_6 * scalar_mult_r_ab2_6;
|
|
float f_alpha_beta_neg_y_7 = r_ab_y_7 * scalar_mult_r_ab_7 + r_ab2_y_7 * scalar_mult_r_ab2_7;
|
|
|
|
float w_val_0, w_val_1, w_val_2, w_val_3, w_val_4, w_val_5, w_val_6, w_val_7;
|
|
|
|
float f_norm_sq_0 = f_alpha_beta_neg_x_0 * f_alpha_beta_neg_x_0 + f_alpha_beta_neg_y_0 * f_alpha_beta_neg_y_0;
|
|
float f_norm_sq_1 = f_alpha_beta_neg_x_1 * f_alpha_beta_neg_x_1 + f_alpha_beta_neg_y_1 * f_alpha_beta_neg_y_1;
|
|
float f_norm_sq_2 = f_alpha_beta_neg_x_2 * f_alpha_beta_neg_x_2 + f_alpha_beta_neg_y_2 * f_alpha_beta_neg_y_2;
|
|
float f_norm_sq_3 = f_alpha_beta_neg_x_3 * f_alpha_beta_neg_x_3 + f_alpha_beta_neg_y_3 * f_alpha_beta_neg_y_3;
|
|
float f_norm_sq_4 = f_alpha_beta_neg_x_4 * f_alpha_beta_neg_x_4 + f_alpha_beta_neg_y_4 * f_alpha_beta_neg_y_4;
|
|
float f_norm_sq_5 = f_alpha_beta_neg_x_5 * f_alpha_beta_neg_x_5 + f_alpha_beta_neg_y_5 * f_alpha_beta_neg_y_5;
|
|
float f_norm_sq_6 = f_alpha_beta_neg_x_6 * f_alpha_beta_neg_x_6 + f_alpha_beta_neg_y_6 * f_alpha_beta_neg_y_6;
|
|
float f_norm_sq_7 = f_alpha_beta_neg_x_7 * f_alpha_beta_neg_x_7 + f_alpha_beta_neg_y_7 * f_alpha_beta_neg_y_7;
|
|
|
|
float rhs_0 = f_norm_sq_0 * cos_phi_sq;
|
|
float rhs_1 = f_norm_sq_1 * cos_phi_sq;
|
|
float rhs_2 = f_norm_sq_2 * cos_phi_sq;
|
|
float rhs_3 = f_norm_sq_3 * cos_phi_sq;
|
|
float rhs_4 = f_norm_sq_4 * cos_phi_sq;
|
|
float rhs_5 = f_norm_sq_5 * cos_phi_sq;
|
|
float rhs_6 = f_norm_sq_6 * cos_phi_sq;
|
|
float rhs_7 = f_norm_sq_7 * cos_phi_sq;
|
|
|
|
float e_dot_f_0 = e_x_i * f_alpha_beta_neg_x_0 + e_y_i * f_alpha_beta_neg_y_0;
|
|
float e_dot_f_1 = e_x_i * f_alpha_beta_neg_x_1 + e_y_i * f_alpha_beta_neg_y_1;
|
|
float e_dot_f_2 = e_x_i * f_alpha_beta_neg_x_2 + e_y_i * f_alpha_beta_neg_y_2;
|
|
float e_dot_f_3 = e_x_i * f_alpha_beta_neg_x_3 + e_y_i * f_alpha_beta_neg_y_3;
|
|
float e_dot_f_4 = e_x_i * f_alpha_beta_neg_x_4 + e_y_i * f_alpha_beta_neg_y_4;
|
|
float e_dot_f_5 = e_x_i * f_alpha_beta_neg_x_5 + e_y_i * f_alpha_beta_neg_y_5;
|
|
float e_dot_f_6 = e_x_i * f_alpha_beta_neg_x_6 + e_y_i * f_alpha_beta_neg_y_6;
|
|
float e_dot_f_7 = e_x_i * f_alpha_beta_neg_x_7 + e_y_i * f_alpha_beta_neg_y_7;
|
|
|
|
float e_dot_f_sq_0 = e_dot_f_0 * e_dot_f_0;
|
|
float e_dot_f_sq_1 = e_dot_f_1 * e_dot_f_1;
|
|
float e_dot_f_sq_2 = e_dot_f_2 * e_dot_f_2;
|
|
float e_dot_f_sq_3 = e_dot_f_3 * e_dot_f_3;
|
|
float e_dot_f_sq_4 = e_dot_f_4 * e_dot_f_4;
|
|
float e_dot_f_sq_5 = e_dot_f_5 * e_dot_f_5;
|
|
float e_dot_f_sq_6 = e_dot_f_6 * e_dot_f_6;
|
|
float e_dot_f_sq_7 = e_dot_f_7 * e_dot_f_7;
|
|
|
|
if (e_dot_f_0 >= 0.0 || e_dot_f_sq_0 <= rhs_0)
|
|
w_val_0 = dt_neg;
|
|
else
|
|
w_val_0 = c_neg_times_dt;
|
|
if (e_dot_f_1 >= 0.0 || e_dot_f_sq_1 <= rhs_1)
|
|
w_val_1 = dt_neg;
|
|
else
|
|
w_val_1 = c_neg_times_dt;
|
|
if (e_dot_f_2 >= 0.0 || e_dot_f_sq_2 <= rhs_2)
|
|
w_val_2 = dt_neg;
|
|
else
|
|
w_val_2 = c_neg_times_dt;
|
|
if (e_dot_f_3 >= 0.0 || e_dot_f_sq_3 <= rhs_3)
|
|
w_val_3 = dt_neg;
|
|
else
|
|
w_val_3 = c_neg_times_dt;
|
|
if (e_dot_f_4 >= 0.0 || e_dot_f_sq_4 <= rhs_4)
|
|
w_val_4 = dt_neg;
|
|
else
|
|
w_val_4 = c_neg_times_dt;
|
|
if (e_dot_f_5 >= 0.0 || e_dot_f_sq_5 <= rhs_5)
|
|
w_val_5 = dt_neg;
|
|
else
|
|
w_val_5 = c_neg_times_dt;
|
|
if (e_dot_f_6 >= 0.0 || e_dot_f_sq_6 <= rhs_6)
|
|
w_val_6 = dt_neg;
|
|
else
|
|
w_val_6 = c_neg_times_dt;
|
|
if (e_dot_f_7 >= 0.0 || e_dot_f_sq_7 <= rhs_7)
|
|
w_val_7 = dt_neg;
|
|
else
|
|
w_val_7 = c_neg_times_dt;
|
|
|
|
acc_x_0 += f_alpha_beta_neg_x_0 * w_val_0;
|
|
acc_x_1 += f_alpha_beta_neg_x_1 * w_val_1;
|
|
acc_x_2 += f_alpha_beta_neg_x_2 * w_val_2;
|
|
acc_x_3 += f_alpha_beta_neg_x_3 * w_val_3;
|
|
acc_x_4 += f_alpha_beta_neg_x_4 * w_val_4;
|
|
acc_x_5 += f_alpha_beta_neg_x_5 * w_val_5;
|
|
acc_x_6 += f_alpha_beta_neg_x_6 * w_val_6;
|
|
acc_x_7 += f_alpha_beta_neg_x_7 * w_val_7;
|
|
acc_y_0 += f_alpha_beta_neg_y_0 * w_val_0;
|
|
acc_y_1 += f_alpha_beta_neg_y_1 * w_val_1;
|
|
acc_y_2 += f_alpha_beta_neg_y_2 * w_val_2;
|
|
acc_y_3 += f_alpha_beta_neg_y_3 * w_val_3;
|
|
acc_y_4 += f_alpha_beta_neg_y_4 * w_val_4;
|
|
acc_y_5 += f_alpha_beta_neg_y_5 * w_val_5;
|
|
acc_y_6 += f_alpha_beta_neg_y_6 * w_val_6;
|
|
acc_y_7 += f_alpha_beta_neg_y_7 * w_val_7;
|
|
}
|
|
|
|
// remainder of the j > i half, single lane. # one j = 66 FLOPS
|
|
for (; j < n_p; j++) {
|
|
float r_ab_x = r_ab_x_lut[i * n_p + j];
|
|
float r_ab_y = r_ab_y_lut[i * n_p + j];
|
|
float r_ab_norm = r_ab_norm_lut[i * n_p + j];
|
|
|
|
r_ab_norm = r_ab_norm > EPS ? r_ab_norm : EPS;
|
|
|
|
// # 1 ADD
|
|
float r_ab2_x = r_ab_x - sb_e_x[j];
|
|
// # 1 ADD
|
|
float r_ab2_y = r_ab_y - sb_e_y[j];
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// # 1 ADD, 2 MULTs, 1 SQRT
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float r_ab2_norm = sqrt(r_ab2_x * r_ab2_x + r_ab2_y * r_ab2_y);
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|
r_ab2_norm = r_ab2_norm > EPS ? r_ab2_norm : EPS;
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|
|
|
// # 1 ADD
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float r_ab_norm_sum = r_ab_norm + r_ab2_norm;
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|
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// # 1 ADD, 1 MULT
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float two_b_sq = r_ab_norm_sum * r_ab_norm_sum - sb_sq[j];
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two_b_sq = two_b_sq > EPS_SQ ? two_b_sq : EPS_SQ;
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// # 1 SQRT
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float two_b = sqrt(two_b_sq);
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// # 5 MULTs, 1 DIV, 1 EXP
|
|
float scalar_mult_common = (r_ab_norm_sum / (two_b * r_ab_norm * r_ab2_norm)) * (NEG_V0_AB_div_TWO_SIGMA * exp(two_b * NEG_TWO_SIGMA_INV));
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// # 1 MULT
|
|
float scalar_mult_r_ab = scalar_mult_common * r_ab2_norm;
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|
// # 1 MULT
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float scalar_mult_r_ab2 = scalar_mult_common * r_ab_norm;
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|
|
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// # 1 ADD, 2 MULTs
|
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float f_alpha_beta_neg_x = r_ab_x * scalar_mult_r_ab + r_ab2_x * scalar_mult_r_ab2;
|
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// # 1 ADD, 2 MULTs
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float f_alpha_beta_neg_y = r_ab_y * scalar_mult_r_ab + r_ab2_y * scalar_mult_r_ab2;
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|
|
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float w_val;
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|
|
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// # 1 ADD, 2 MULTs
|
|
float f_norm_sq = f_alpha_beta_neg_x * f_alpha_beta_neg_x + f_alpha_beta_neg_y * f_alpha_beta_neg_y;
|
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// # 1 MULT
|
|
float rhs = f_norm_sq * cos_phi_sq;
|
|
// # 1 ADD, 2 MULTs
|
|
float e_dot_f = e_x[i] * f_alpha_beta_neg_x + e_y[i] * f_alpha_beta_neg_y;
|
|
// # 1 MULT
|
|
float e_dot_f_sq = e_dot_f * e_dot_f;
|
|
if (e_dot_f >= 0.0 || e_dot_f_sq <= rhs)
|
|
w_val = dt_neg;
|
|
else
|
|
w_val = c_neg_times_dt;
|
|
|
|
// # 1 ADD, 1 MULT
|
|
f_alpha_dt_x += f_alpha_beta_neg_x * w_val;
|
|
// # 1 ADD, 1 MULT
|
|
f_alpha_dt_y += f_alpha_beta_neg_y * w_val;
|
|
}
|
|
|
|
// reduction of the j > i accumulators. # K adds per line (K=8) => 16 ADDs
|
|
f_alpha_dt_x += acc_x_0 + acc_x_1 + acc_x_2 + acc_x_3 + acc_x_4 + acc_x_5 + acc_x_6 + acc_x_7;
|
|
f_alpha_dt_y += acc_y_0 + acc_y_1 + acc_y_2 + acc_y_3 + acc_y_4 + acc_y_5 + acc_y_6 + acc_y_7;
|
|
|
|
// force between pedestrian and obstacles
|
|
// # one obstacle = 55 FLOPS (w_val sign-based, no a*a / b_sq)
|
|
for (int k = 0; k < board.n_obstacles; k++) {
|
|
// # 1 ADD
|
|
float v1_x = pos_x[i] - board.obstacles[k].start_x;
|
|
// # 1 ADD
|
|
float v1_y = pos_y[i] - board.obstacles[k].start_y;
|
|
float v2_x = board.obstacles[k].obstacle_v_x;
|
|
float v2_y = board.obstacles[k].obstacle_v_y;
|
|
|
|
// # 1 ADD, 3 MULTs
|
|
float projection = (v1_x * v2_x + v1_y * v2_y) * board.obstacles[k].length_sq_inv;
|
|
|
|
if (projection < 0.0)
|
|
projection = 0.0;
|
|
else if (projection > 1.0)
|
|
projection = 1.0;
|
|
|
|
// # 2 ADDs, 1 MULT
|
|
float r_aB_x = pos_x[i] - (board.obstacles[k].start_x + board.obstacles[k].obstacle_v_x * projection);
|
|
// # 2 ADDs, 1 MULT
|
|
float r_aB_y = pos_y[i] - (board.obstacles[k].start_y + board.obstacles[k].obstacle_v_y * projection);
|
|
|
|
// # 1 ADD, 2 MULTs, 1 SQRT
|
|
float r_aB_norm = sqrt(r_aB_x * r_aB_x + r_aB_y * r_aB_y);
|
|
r_aB_norm = r_aB_norm > EPS ? r_aB_norm : EPS;
|
|
|
|
// # 2 MULTs, 1 DIV, 1 EXP
|
|
float scalar_mult = (NEG_U0_AB_div_R * exp(r_aB_norm * NEG_R_INV)) / r_aB_norm;
|
|
// # 1 MULT
|
|
float f_alpha_B_neg_x = r_aB_x * scalar_mult;
|
|
// # 1 MULT
|
|
float f_alpha_B_neg_y = r_aB_y * scalar_mult;
|
|
|
|
float w_val;
|
|
|
|
// sign select only, no flops
|
|
float e_dot_f = (f_alpha_B_neg_y == 0) ? 0 : (f_alpha_B_neg_y < 0 ? -e_y[i] : e_y[i]);
|
|
|
|
if (e_dot_f >= cos_phi)
|
|
w_val = dt_neg;
|
|
else
|
|
w_val = c_neg_times_dt;
|
|
|
|
// # 1 MULT
|
|
float f_alpha_B_dt_x = f_alpha_B_neg_x * w_val;
|
|
// # 1 MULT
|
|
float f_alpha_B_dt_y = f_alpha_B_neg_y * w_val;
|
|
|
|
// # 1 ADD
|
|
f_alpha_dt_x += f_alpha_B_dt_x;
|
|
// # 1 ADD
|
|
f_alpha_dt_y += f_alpha_B_dt_y;
|
|
}
|
|
|
|
// # 1 ADD
|
|
w_x[i] += f_alpha_dt_x;
|
|
// # 1 ADD
|
|
w_y[i] += f_alpha_dt_y;
|
|
}
|
|
|
|
// update each pedestrian
|
|
// # 29 FLOPS per pedestrian
|
|
for (int i = 0; i < n_p; i++) {
|
|
|
|
// # 1 ADD, 2 MULTs, 1 SQRT
|
|
float w_norm = sqrt(w_x[i] * w_x[i] + w_y[i] * w_y[i]);
|
|
|
|
float w_norm2 = w_norm > EPS ? w_norm : EPS;
|
|
|
|
// # 1 DIV
|
|
float correction_factor = min(1.0f, v_max[i] / w_norm2);
|
|
|
|
// # 1 MULT
|
|
curr_vel_x[i] = w_x[i] * correction_factor;
|
|
// # 1 MULT
|
|
curr_vel_y[i] = w_y[i] * correction_factor;
|
|
|
|
// # 1 ADD, 1 MULT
|
|
pos_x[i] = pos_x[i] + curr_vel_x[i] * dt;
|
|
// # 1 ADD, 1 MULT
|
|
pos_y[i] = pos_y[i] + curr_vel_y[i] * dt;
|
|
|
|
if (color[i] == 0 && pos_x[i] > (BOARD_LENGTH - 1.5)) {
|
|
pos_x[i] = 1.0;
|
|
destination_y[i] = pos_y[i];
|
|
w_x[i] = desired_v0[i];
|
|
w_y[i] = 0.0;
|
|
curr_vel_x[i] = w_x[i];
|
|
curr_vel_y[i] = w_y[i];
|
|
}
|
|
if (color[i] == 1 && pos_x[i] < 1.5) {
|
|
pos_x[i] = BOARD_LENGTH - 1.0;
|
|
destination_y[i] = pos_y[i];
|
|
w_x[i] = -desired_v0[i];
|
|
w_y[i] = 0.0;
|
|
curr_vel_x[i] = w_x[i];
|
|
curr_vel_y[i] = w_y[i];
|
|
}
|
|
|
|
pos_y[i] = clamp(pos_y[i], WALL_EPS, BOARD_WIDTH_MINUS_WALL_EPS);
|
|
|
|
// # 1 ADD
|
|
float ex = destination_x[i] - pos_x[i];
|
|
// # 1 ADD
|
|
float ey = destination_y[i] - pos_y[i];
|
|
|
|
// # 1 ADD, 2 MULTs, 1 SQRT
|
|
float e_norm = sqrt(ex * ex + ey * ey);
|
|
float e_norm2 = e_norm > EPS ? e_norm : EPS;
|
|
// # 1 DIV
|
|
float e_norm_inv = 1.0 / e_norm2;
|
|
|
|
// # 1 MULT
|
|
e_x[i] = ex * e_norm_inv;
|
|
// # 1 MULT
|
|
e_y[i] = ey * e_norm_inv;
|
|
|
|
// # 1 ADD, 2 MULTs
|
|
float velocity_norm_sq = curr_vel_x[i] * curr_vel_x[i] + curr_vel_y[i] * curr_vel_y[i];
|
|
|
|
// # 1 SQRT
|
|
float velocity_norm = sqrt(velocity_norm_sq);
|
|
|
|
// # 1 MULT
|
|
sb_sq[i] = velocity_norm_sq * delta_t_sq;
|
|
|
|
// # 2 MULTs (velocity_norm*delta_t written on both lines, counted as is)
|
|
sb_e_x[i] = e_x[i] * (velocity_norm * delta_t);
|
|
// # 2 MULTs
|
|
sb_e_y[i] = e_y[i] * (velocity_norm * delta_t);
|
|
|
|
#if !BENCHMARK
|
|
if (dump_path && (t % dump_interval == 0)) {
|
|
samples.emplace_back(t + 1, i, pos_x[i], pos_y[i], e_x[i], e_y[i], color[i]);
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
#if !BENCHMARK
|
|
if (dump_path) {
|
|
ofstream out(dump_path);
|
|
out << "time,id,x,y,p.e.x,p.e.y,color\n";
|
|
|
|
for (auto &[t, id, x, y, e_x, e_y, c] : samples) {
|
|
out << t << ',' << id << ',' << x << ',' << y << ',' << e_x << ',' << e_y << ',' << c << '\n';
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|