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/*
* Distributed under the OSI-approved Apache License, Version 2.0. See
* accompanying file Copyright.txt for details.
*
* dataSpacesWriter.cpp
*
* Created on: Feb 06, 2019
* Author: Pradeep Subedi
* pradeep.subedi@rutgers.edu
*/
#include <iostream>
#include <vector>
#include <adios2.h>
#if ADIOS2_USE_MPI
#include <mpi.h>
#endif
int main(int argc, char *argv[])
{
int rank;
int size;
#if ADIOS2_USE_MPI
int provided;
// MPI_THREAD_MULTIPLE is only required if you enable the SST MPI_DP
MPI_Init_thread(&argc, &argv, MPI_THREAD_MULTIPLE, &provided);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
#else
rank = 0;
size = 1;
#endif
std::vector<float> myFloats = {(float)10.0 * rank + 0, (float)10.0 * rank + 1,
(float)10.0 * rank + 2, (float)10.0 * rank + 3,
(float)10.0 * rank + 4, (float)10.0 * rank + 5,
(float)10.0 * rank + 6, (float)10.0 * rank + 7,
(float)10.0 * rank + 8, (float)10.0 * rank + 9};
const std::size_t Nx = myFloats.size();
try
{
#if ADIOS2_USE_MPI
adios2::ADIOS adios(MPI_COMM_WORLD);
#else
adios2::ADIOS adios;
#endif
adios2::IO dataSpacesIO = adios.DeclareIO("myIO");
dataSpacesIO.SetEngine("DATASPACES");
// Define variable and local size
auto bpFloats =
dataSpacesIO.DefineVariable<float>("bpFloats", {size * Nx}, {rank * Nx}, {Nx});
// Create engine smart pointer to Sst Engine due to polymorphism,
// Open returns a smart pointer to Engine containing the Derived class
adios2::Engine dataSpacesWriter = dataSpacesIO.Open("helloDataSpaces", adios2::Mode::Write);
dataSpacesWriter.BeginStep();
dataSpacesWriter.Put<float>(bpFloats, myFloats.data());
dataSpacesWriter.EndStep();
dataSpacesWriter.Close();
}
catch (std::invalid_argument &e)
{
std::cout << "Invalid argument exception, STOPPING PROGRAM from rank " << rank << "\n";
std::cout << e.what() << "\n";
}
catch (std::ios_base::failure &e)
{
std::cout << "IO System base failure exception, STOPPING PROGRAM from rank " << rank
<< "\n";
std::cout << e.what() << "\n";
}
catch (std::exception &e)
{
std::cout << "Exception, STOPPING PROGRAM from rank " << rank << "\n";
std::cout << e.what() << "\n";
}
#if ADIOS2_USE_MPI
MPI_Finalize();
#endif
return 0;
}
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