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/*
* Distributed under the OSI-approved Apache License, Version 2.0. See
* accompanying file Copyright.txt for details.
*
* helloCallback.cpp
*
* Created on: Oct 18, 2017
* Author: William F Godoy godoywf@ornl.gov
*/
#include <mpi.h>
#include <cstdint> //std::int32_t
#include <ios> //std::ios_base::failure
#include <iostream> //std::cout
#include <numeric> //std::iota
#include <stdexcept> //std::invalid_argument std::exception
#include <vector>
#include <adios2.h>
void UserCallBack(const unsigned int userID)
{
std::cout << "Hello callback UserCallBack " << userID << "\n";
}
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);
/** Application variable uints from 0 to 100 */
std::vector<float> myFloats(100);
std::iota(myFloats.begin(), myFloats.end(), 0.f);
const std::size_t Nx = myFloats.size();
const std::size_t inputBytes = Nx * sizeof(float);
try
{
/** ADIOS class factory of IO class objects, DebugON is recommended */
adios2::ADIOS adios(MPI_COMM_WORLD, adios2::DebugON);
adios2::Operator &callback = adios.DefineOperator(
"UserCallback",
std::function<void(const unsigned int)>(UserCallBack));
// std::function<void(const unsigned int)> myFunction =
// callback.GetCallback<void, const unsigned int>();
// myFunction(1);
}
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";
}
MPI_Finalize();
return 0;
}