На GPU вычисления
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@@ -1,12 +1,116 @@
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#include "gpu_loader.hpp"
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#include <dlfcn.h>
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#include <map>
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#include <algorithm>
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static void* get_gpu_lib_handle() {
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static void* h = dlopen("./libgpu_compute.so", RTLD_NOW | RTLD_LOCAL);
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return h;
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}
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gpu_is_available_fn load_gpu_is_available() {
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void* h = dlopen("./libgpu_compute.so", RTLD_NOW | RTLD_LOCAL);
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void* h = get_gpu_lib_handle();
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if (!h) return nullptr;
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auto fn = (gpu_is_available_fn)dlsym(h, "gpu_is_available");
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if (!fn) return nullptr;
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return fn;
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}
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gpu_aggregate_days_fn load_gpu_aggregate_days() {
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void* h = get_gpu_lib_handle();
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if (!h) return nullptr;
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auto fn = (gpu_aggregate_days_fn)dlsym(h, "gpu_aggregate_days");
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return fn;
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}
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bool aggregate_days_gpu(
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const std::vector<Record>& records,
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std::vector<DayStats>& out_stats,
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gpu_aggregate_days_fn gpu_fn)
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{
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if (!gpu_fn || records.empty()) {
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return false;
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}
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// Группируем записи по дням и подготавливаем данные для GPU
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std::map<DayIndex, std::vector<size_t>> day_record_indices;
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for (size_t i = 0; i < records.size(); i++) {
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DayIndex day = static_cast<DayIndex>(records[i].timestamp) / 86400;
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day_record_indices[day].push_back(i);
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}
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int num_days = static_cast<int>(day_record_indices.size());
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// Подготавливаем массивы для GPU
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std::vector<GpuRecord> gpu_records;
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std::vector<int> day_offsets;
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std::vector<int> day_counts;
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std::vector<long long> day_indices;
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gpu_records.reserve(records.size());
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day_offsets.reserve(num_days);
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day_counts.reserve(num_days);
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day_indices.reserve(num_days);
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int current_offset = 0;
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for (auto& [day, indices] : day_record_indices) {
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day_indices.push_back(day);
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day_offsets.push_back(current_offset);
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day_counts.push_back(static_cast<int>(indices.size()));
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// Добавляем записи этого дня
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for (size_t idx : indices) {
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const auto& r = records[idx];
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GpuRecord gr;
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gr.timestamp = r.timestamp;
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gr.open = r.open;
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gr.high = r.high;
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gr.low = r.low;
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gr.close = r.close;
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gr.volume = r.volume;
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gpu_records.push_back(gr);
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}
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current_offset += static_cast<int>(indices.size());
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}
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// Выделяем память для результата
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std::vector<GpuDayStats> gpu_stats(num_days);
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// Вызываем GPU функцию
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int result = gpu_fn(
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gpu_records.data(),
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static_cast<int>(gpu_records.size()),
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day_offsets.data(),
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day_counts.data(),
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day_indices.data(),
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num_days,
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gpu_stats.data()
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);
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if (result != 0) {
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return false;
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}
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// Конвертируем результат в DayStats
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out_stats.clear();
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out_stats.reserve(num_days);
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for (const auto& gs : gpu_stats) {
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DayStats ds;
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ds.day = gs.day;
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ds.low = gs.low;
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ds.high = gs.high;
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ds.open = gs.open;
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ds.close = gs.close;
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ds.avg = gs.avg;
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ds.first_ts = gs.first_ts;
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ds.last_ts = gs.last_ts;
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out_stats.push_back(ds);
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}
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return true;
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}
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