Example showing how stucts can be used in HarpCPP

struct_with_harpc.cpp

#include <iostream>
#include "harp.h"

using namespace std;
using namespace harp;

struct X {
    double a;
    double b;
};

class TestWorker : public Worker {
    void execute(com::Communicator *comm, int argc, char *argv[]) {
        cout << "Worker : " << this->workerId << " of " << this->worldSize << endl;
        auto *a = new int[1 + workerId];
        for (int i = 0; i < 1 + workerId; i++) {
            a[i] = workerId;
        }

        auto yo = new X;
        yo->a = workerId;
        yo->b = workerId;

        char *bytes = reinterpret_cast<char *>(yo);

        harp::ds::Table<char> tab(0);

        harp::ds::Partition<char> p(workerId, bytes, sizeof(X));
        tab.addPartition(&p);

        comm->allGather(&tab);

        if (workerId == 0) {
            util::print::printTable(&tab);

            auto p = tab.getPartition(1);
            char *data = p->getData();
            X *deserializedX = reinterpret_cast<X *>(data);
            std::cout << "Value from des" << deserializedX->a << std::endl;
        }

        //delete[]a;

        comm->barrier();
    }
};

int main(int argc, char *argv[]) {
    TestWorker testWorker;
    testWorker.init(argc, argv);
    testWorker.start();
    return 0;
}