ft_example_1f1p.cpp

This example show how to use 1f1p pattern EP_DIR.
Author: Bin Dong dbin@.nosp@m.lbl..nosp@m.gov Web: https://crd.lbl.gov/bin-dong Scientific Data Management Research Group Lawrence Berkeley National Laboratory

Author

Bin Dong (dbin@.nosp@m.lbl..nosp@m.gov)

Version

0.1

Date

2021-05-28

Copyright

Copyright (c) 2021

/*
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*/
 
#include <iostream>
#include <stdarg.h>
#include <vector>
#include <stdlib.h>
#include "ft.h"
 
using namespace std;
using namespace FT;
 
//UDF One: duplicate the original data
inline Stencil<float> udf_1f1p(const Stencil<float> &iStencil)
{
    Stencil<float> oStencil;
    oStencil = iStencil(0, 0) * 2.0;
    return oStencil;
}
 
int main(int argc, char *argv[])
{
    //Init the MPICH, etc.
    AU_Init(argc, argv);
 
    // set up the chunk size and the overlap size
    std::vector<int> chunk_size = {16, 16};
    std::vector<int> overlap_size = {0, 0};
 
    //Input data
    Array<float> *A = new Array<float>("EP_DIR:EP_HDF5:./test-data/test_1f1p_dir:/testg/testd", chunk_size, overlap_size);
 
    //Result data
    Array<float> *B = new Array<float>("EP_DIR:EP_HDF5:./test-data/test_1f1p_dir_output:/testg/testd");
 
    //Run
    A->Apply(udf_1f1p, B);
 
    //Clear
    delete A;
    delete B;
 
    AU_Finalize();
 
    return 0;
}