Commit 0fadd7c2 authored by Marc Vef's avatar Marc Vef
Browse files

Improved MPI test output

parent a1093b74

ifs_test/main_MPI.cpp

+9 −3
Original line number Diff line number Diff line
@@ -3,6 +3,7 @@ 
#include <fcntl.h>

#include <chrono>

#include <mpi.h>



using namespace std;



using ns = chrono::nanoseconds;
@@ -22,16 +23,21 @@ int main(int argc, char* argv[]) { 


//    int filen = 3;



    printf("Hello from rank %d\n", rank);

//    printf("Hello from rank %d\n", rank);

    MPI_Barrier(MPI_COMM_WORLD);



    auto start_t = get_time::now();

    auto end_tmp = start_t;

    int fd;

    for (int i = 0; i < filen; ++i) {

        string p = "/tmp/mountdir/file" + to_string(rank) + "_" + to_string(i);

        fd = creat(p.c_str(), 0666);

        if (i % 25000 == 0)

            cout << "Rank " << rank << ": " << i << " files processed." << endl;

        if (i % 25000 == 0) {

            end_tmp = get_time::now();

            auto diff_tmp = end_tmp - start_t;

            cout << "Rank " << rank << ":\t" << i << " files processed.\t "

                 << (i / (chrono::duration_cast<ns>(diff_tmp).count() / 1000000000.)) << " ops/sec" << endl;

        }

        close(fd);

    }