Убрал поддиректорию

src/main.cpp

@@ -0,0 +1,87 @@
+#include <mpi.h>
+#include <iostream>
+#include <vector>
+#include <map>
+
+#include "csv_loader.hpp"
+#include "utils.hpp"
+#include "record.hpp"
+#include "gpu_loader.hpp"
+
+// Функция: отобрать записи для конкретного ранга
+std::vector<Record> select_records_for_rank(
+    const std::map<long long, std::vector<Record>>& days,
+    const std::vector<long long>& day_list)
+{
+    std::vector<Record> out;
+    for (auto d : day_list) {
+        auto it = days.find(d);
+        if (it != days.end()) {
+            const auto& vec = it->second;
+            out.insert(out.end(), vec.begin(), vec.end());
+        }
+    }
+    return out;
+}
+
+int main(int argc, char** argv) {
+    MPI_Init(&argc, &argv);
+
+    int rank, size;
+    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
+    MPI_Comm_size(MPI_COMM_WORLD, &size);
+
+    std::vector<Record> local_records;
+
+    if (rank == 0) {
+        std::cout << "Rank 0 loading CSV..." << std::endl;
+
+        // Запускаем из build
+        auto records = load_csv("../data/data.csv");
+
+        auto days = group_by_day(records);
+        auto parts = split_days(days, size);
+
+        // Рассылаем данные
+        for (int r = 0; r < size; r++) {
+            auto vec = select_records_for_rank(days, parts[r]);
+
+            if (r == 0) {  
+                // себе не отправляем — сразу сохраняем
+                local_records = vec;
+                continue;
+            }
+
+            int count = vec.size();
+            MPI_Send(&count, 1, MPI_INT, r, 0, MPI_COMM_WORLD);
+            MPI_Send(vec.data(), count * sizeof(Record), MPI_BYTE, r, 1, MPI_COMM_WORLD);
+        }
+    }
+    else {
+        // Принимает данные
+        int count = 0;
+        MPI_Recv(&count, 1, MPI_INT, 0, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
+
+        local_records.resize(count);
+        MPI_Recv(local_records.data(), count * sizeof(Record),
+                 MPI_BYTE, 0, 1, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
+    }
+
+    MPI_Barrier(MPI_COMM_WORLD);
+
+    std::cout << "Rank " << rank << " received "
+              << local_records.size() << " records" << std::endl;
+
+
+    auto gpu_is_available = load_gpu_is_available();
+    int have_gpu = 0;
+    if (gpu_is_available) {
+        std::cout << "Rank " << rank << " dll loaded" << std::endl;
+        have_gpu = gpu_is_available();
+    }
+
+    std::cout << "Rank " << rank << ": gpu_available=" << have_gpu << "\n";
+
+    MPI_Finalize();
+    return 0;
+}