ft_example_tag.cpp

This example show how to use Tag in FasTensor .

Author

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

Version

0.1

Date

2021-05-28

Copyright

Copyright (c) 2021

/*
****************************
 
FasTensor (FT) Copyright (c) 2021, The Regents of the University of
California, through Lawrence Berkeley National Laboratory (subject to
receipt of any required approvals from the U.S. Dept. of Energy). 
All rights reserved.
 
If you have questions about your rights to use or distribute this software,
please contact Berkeley Lab's Intellectual Property Office at
[email protected].
 
NOTICE.  This Software was developed under funding from the U.S. Department
of Energy and the U.S. Government consequently retains certain rights.  As
such, the U.S. Government has been granted for itself and others acting on
its behalf a paid-up, nonexclusive, irrevocable, worldwide license in the
Software to reproduce, distribute copies to the public, prepare derivative 
works, and perform publicly and display publicly, and to permit others to do so.
 
 
****************************
 
 
*** License Agreement ***
 
FasTensor (FT) Copyright (c) 2021, The Regents of the University of
California, through Lawrence Berkeley National Laboratory (subject to
receipt of any required approvals from the U.S. Dept. of Energy). 
All rights reserved.
 
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
 
(1) Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
 
(2) Redistributions in binary form must reproduce the above copyright
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(3) Neither the name of the University of California, Lawrence Berkeley
National Laboratory, U.S. Dept. of Energy nor the names of its contributors
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without specific prior written permission.
 
 
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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You are under no obligation whatsoever to provide any bug fixes, patches,
or upgrades to the features, functionality or performance of the source
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*/
 
#include <iostream>
#include <stdarg.h>
#include <vector>
#include <stdlib.h>
#include <chrono>
#include <ctime>
 
#include "ft.h"
 
using namespace std;
using namespace FT;
 
//UDF One: duplicate the original data
inline Stencil<float> udf_hello_world(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 = {4, 16};
    std::vector<int> overlap_size = {1, 1};
 
    //Input data
    Array<float> *A = new Array<float>("EP_HDF5:./test-data/testf-16x16-tag.h5:/testg/testd", chunk_size, overlap_size);
 
    //Result data
    Array<float> *B = new Array<float>("EP_HDF5:./test-data/testf-16x16-tag-output.h5:/testg/testd");
 
    //Run
    A->Apply(udf_hello_world, B);
 
    std::cout << setprecision(17);
 
    std::string test_str = "This is long test string for set tag";
    B->SetTag("TestString", test_str);
 
    double test_double = 0.00001234;
    B->SetTag("TestDouble", test_double);
 
    float test_float = 0.12345678;
    B->SetTag("TestFloat", test_float);
 
    int test_int = 1234;
    B->SetTag("TestInt", test_int);
 
    std::vector<int> data_size = {16, 16};
    B->SetTag("TestVector", data_size);
 
    std::string test_str_get;
    B->GetTag("TestString", test_str_get);
    std::cout << "Get TestString: " << test_str_get << "\n";
 
    double test_double_get;
    B->GetTag("TestDouble", test_double_get);
    std::cout << "Get TestDouble: " << test_double_get << "\n";
 
    float test_float_get;
    B->GetTag("TestFloat", test_float_get);
    std::cout << "Get TestFloat: " << test_float_get << "\n";
 
    int test_int_get;
    B->GetTag("TestInt", test_int_get);
    std::cout << "Get TestInt: " << test_int_get << "\n";
 
    std::vector<int> data_size_get(2);
    B->GetTag("TestVector", data_size_get);
    std::cout << "Get TestVector: " << data_size_get[0] << ", " << data_size_get[1] << "\n";
 
    std::vector<std::string> B_tags;
    B->GetAllTagName(B_tags);
    for (auto t : B_tags)
        std::cout << t << "\n";
 
    //Clear
    delete A;
    delete B;
 
    AU_Finalize();
 
    return 0;
}