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
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*
* Distributed under the OSI-approved Apache License, Version 2.0. See
* accompanying file Copyright.txt for details.
*
* examplePluginEngineRead.cpp example showing how to use ExampleReadPlugin
* engine
*
* Created on: July 5, 2021
* Author: Caitlin Ross <caitlin.ross@kitware.com>
*/
#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[])
{
std::string config;
if (argc > 1)
{
config = std::string(argv[1]);
}
std::vector<float> myFloats = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
bool success = false;
try
{
/** ADIOS class factory of IO class objects */
adios2::ADIOS adios(config);
/*** IO class object: settings and factory of Settings: Variables,
* Parameters, Transports, and Execution: Engines */
adios2::IO io = adios.DeclareIO("reader");
if (config.empty())
{
io.SetEngine("Plugin");
adios2::Params params;
params["PluginName"] = "ReadPlugin";
params["PluginLibrary"] = "PluginEngineRead";
params["verbose"] = "5";
io.SetParameters(params);
}
adios2::Engine reader = io.Open("TestPlugin", adios2::Mode::Read);
// test streaming
for (int i = 0; i < 2; i++)
{
if (i == 1)
{
for (auto &num : myFloats)
{
num *= 2;
}
}
reader.BeginStep();
auto var = io.InquireVariable<float>("data");
if (!var)
{
std::cout << "variable does not exist" << std::endl;
}
else
{
std::vector<float> readFloats;
reader.Get(var, readFloats);
if (readFloats == myFloats)
{
std::cout << "data was read correctly!" << std::endl;
}
else
{
std::cout << "data was not read correctly!" << std::endl;
}
}
reader.EndStep();
}
/** Engine becomes unreachable after this*/
reader.Close();
success = true;
}
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 success ? EXIT_SUCCESS : EXIT_FAILURE;
}
|
