1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
/*
* Distributed under the OSI-approved Apache License, Version 2.0. See
* accompanying file Copyright.txt for details.
*
* hdf5Writer_nompi.cpp no mpi version of helloHDF5Writer.cpp
*
* Created on: March 20, 2017
* Author: Junmin
*/
#include <ios> //std::ios_base::failure
#include <iostream> //std::cout
#include <stdexcept> //std::invalid_argument std::exception
#include <vector>
#include <adios2.h>
int main(int argc, char *argv[])
{
/** Application variable */
std::vector<float> myFloats = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
const std::size_t Nx = myFloats.size();
try
{
/** ADIOS class factory of IO class objects */
adios2::ADIOS adios;
/*** IO class object: settings and factory of Settings: Variables,
* Parameters, Transports, and Execution: Engines */
adios2::IO hdf5IO = adios.DeclareIO("HDFFileIO");
hdf5IO.SetEngine("HDF5");
/** global array : name, { shape (total) }, { start (local) }, { count
* (local) }, all are constant dimensions */
adios2::Variable<float> bpFloats =
hdf5IO.DefineVariable<float>("bpFloats", {}, {}, {Nx}, adios2::ConstantDims);
/** Engine derived class, spawned to start IO operations */
adios2::Engine hdf5Writer = hdf5IO.Open("myVector.h5", adios2::Mode::Write);
hdf5Writer.BeginStep();
/** Write variable for buffering */
hdf5Writer.Put<float>(bpFloats, myFloats.data());
hdf5Writer.EndStep();
/** Create bp file, engine becomes unreachable after this*/
hdf5Writer.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 << "IO System base failure exception, STOPPING PROGRAM\n";
std::cout << e.what() << "\n";
}
catch (std::exception &e)
{
std::cout << "Exception, STOPPING PROGRAM from rank\n";
std::cout << e.what() << "\n";
}
return 0;
}
|
