helloBPWriter_nompi.cpp

/*
 * Distributed under the OSI-approved Apache License, Version 2.0.  See
 * accompanying file Copyright.txt for details.
 *
 * helloADIOSNoXML_OOP.cpp
 *
 *  Created on: Jan 9, 2017
 *      Author: wfg
 */

#include <ios>
#include <iostream>
#include <stdexcept>
#include <vector>

#include <adios2.h>

int main(int /*argc*/, char ** /*argv*/)
{
    const bool adiosDebug = true;
    adios::ADIOS adios(adios::Verbose::WARN, adiosDebug);

    // Application variable
    std::vector<double> myDoubles = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
    const std::size_t Nx = myDoubles.size();

    const std::size_t rows = 3;
    const std::size_t columns = 3;
    std::vector<float> myMatrix = {1, 2, 3, 4, 5, 6, 7, 8, 9};

    std::vector<float> myMatrix2 = {-1, -2, -3, -4, -5, -6, -7, -8, -9};

    try
    {
        // Define variable and local size
        adios::Variable<double> &ioMyDoubles =
            adios.DefineVariable<double>("myDoubles", adios::Dims{Nx});
        adios::Variable<float> &ioMyMatrix =
            adios.DefineVariable<float>("myMatrix", adios::Dims{rows, columns});
        adios::Variable<float> &ioMyMatrix2 = adios.DefineVariable<float>(
            "myMatrix2", adios::Dims{rows, columns});
        adios::Variable<float> &ioMyMatrix3 = adios.DefineVariable<float>(
            "myMatrix3", adios::Dims{rows, columns});

        // Define method for engine creation, it is basically straight-forward
        // parameters
        adios::Method &bpWriterSettings = adios.DeclareMethod(
            "SinglePOSIXFile"); // default method type is Writer
        bpWriterSettings.SetParameters("profile_units=mus");
        bpWriterSettings.AddTransport("File", "have_metadata_file=yes",
                                      "profile_units=mus");

        // Create engine smart pointer due to polymorphism,
        // Open returns a smart pointer to Engine containing the Derived class
        // Writer
        auto bpFileWriter =
            adios.Open("myDoubles_nompi.bp", "w", bpWriterSettings);

        if (bpFileWriter == nullptr)
        {
            throw std::ios_base::failure(
                "ERROR: couldn't create bpWriter at Open\n");
        }

        bpFileWriter->Write<double>(
            ioMyDoubles,
            myDoubles.data()); // Base class Engine own the Write<T>
                               // that will call overloaded Write from
                               // Derived
        bpFileWriter->Write<float>(ioMyMatrix, myMatrix.data());   // 2d Example
        bpFileWriter->Write<float>(ioMyMatrix2, myMatrix2.data()); // 2d Example
        bpFileWriter->Write<float>(ioMyMatrix3, myMatrix2.data()); // 2d Example
        bpFileWriter->Close();
        //
    }
    catch (std::invalid_argument &e)
    {
        std::cout << "Invalid argument exception, STOPPING PROGRAM\n";
        std::cout << e.what() << "\n";
    }
    catch (std::ios_base::failure &e)
    {
        std::cout << "System exception, STOPPING PROGRAM\n";
        std::cout << e.what() << "\n";
    }
    catch (std::exception &e)
    {
        std::cout << "Exception, STOPPING PROGRAM\n";
        std::cout << e.what() << "\n";
    }

    return 0;
}