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test_dof_synchronizer.cc
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rAKA akantu
test_dof_synchronizer.cc
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/**
* @file test_dof_synchronizer.cc
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Sun Oct 19 2014
* @date last modification: Wed Jan 15 2020
*
* @brief Test the functionality of the DOFSynchronizer class
*
*
* @section LICENSE
*
* Copyright (©) 2010-2021 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "communicator.hh"
#include "dof_synchronizer.hh"
#include "element_synchronizer.hh"
#include "mesh_io.hh"
#include "mesh_partition_scotch.hh"
/* -------------------------------------------------------------------------- */
#include "io_helper.hh"
/* -------------------------------------------------------------------------- */
using
namespace
akantu
;
int
main
(
int
argc
,
char
*
argv
[])
{
const
UInt
spatial_dimension
=
2
;
initialize
(
argc
,
argv
);
const
auto
&
comm
=
akantu
::
Communicator
::
getStaticCommunicator
();
Int
prank
=
comm
.
whoAmI
();
Mesh
mesh
(
spatial_dimension
);
if
(
prank
==
0
)
mesh
.
read
(
"bar.msh"
);
mesh
.
distribute
();
DOFManagerDefault
dof_manager
(
mesh
,
"test_dof_manager"
);
UInt
nb_nodes
=
mesh
.
getNbNodes
();
/* ------------------------------------------------------------------------ */
/* test the synchronization */
/* ------------------------------------------------------------------------ */
Array
<
Real
>
test_synchronize
(
nb_nodes
,
spatial_dimension
,
"Test vector"
);
dof_manager
.
registerDOFs
(
"test_synchronize"
,
test_synchronize
,
_dst_nodal
);
auto
&
equation_number
=
dof_manager
.
getLocalEquationsNumbers
(
"test_synchronize"
);
DOFSynchronizer
&
dof_synchronizer
=
dof_manager
.
getSynchronizer
();
std
::
cout
<<
"Synchronizing a dof vector"
<<
std
::
endl
;
Array
<
Int
>
local_data_array
(
dof_manager
.
getLocalSystemSize
(),
2
);
auto
it_data
=
local_data_array
.
begin
(
2
);
for
(
UInt
local_dof
=
0
;
local_dof
<
dof_manager
.
getLocalSystemSize
();
++
local_dof
)
{
UInt
equ_number
=
equation_number
(
local_dof
);
Vector
<
Int
>
val
;
if
(
dof_manager
.
isLocalOrMasterDOF
(
equ_number
))
{
UInt
global_dof
=
dof_manager
.
localToGlobalEquationNumber
(
local_dof
);
val
=
{
0
,
1
};
val
+=
global_dof
*
2
;
}
else
{
val
=
{
-
1
,
-
1
};
}
Vector
<
Int
>
data
=
it_data
[
local_dof
];
data
=
val
;
}
dof_synchronizer
.
synchronizeArray
(
local_data_array
);
auto
test_data
=
[
&
]()
->
void
{
auto
it_data
=
local_data_array
.
begin
(
2
);
for
(
UInt
local_dof
=
0
;
local_dof
<
dof_manager
.
getLocalSystemSize
();
++
local_dof
)
{
UInt
equ_number
=
equation_number
(
local_dof
);
Vector
<
Int
>
exp_val
;
UInt
global_dof
=
dof_manager
.
localToGlobalEquationNumber
(
local_dof
);
if
(
dof_manager
.
isLocalOrMasterDOF
(
equ_number
)
||
dof_manager
.
isSlaveDOF
(
equ_number
))
{
exp_val
=
{
0
,
1
};
exp_val
+=
global_dof
*
2
;
}
else
{
exp_val
=
{
-
1
,
-
1
};
}
Vector
<
Int
>
val
=
it_data
[
local_dof
];
if
(
exp_val
!=
val
)
{
std
::
cerr
<<
"Failed !"
<<
prank
<<
" DOF: "
<<
global_dof
<<
" - l"
<<
local_dof
<<
" value:"
<<
val
<<
" expected: "
<<
exp_val
<<
std
::
endl
;
exit
(
1
);
}
}
};
test_data
();
if
(
prank
==
0
)
{
Array
<
Int
>
test_gathered
(
dof_manager
.
getSystemSize
(),
2
);
dof_synchronizer
.
gather
(
local_data_array
,
test_gathered
);
local_data_array
.
set
(
-
1
);
dof_synchronizer
.
scatter
(
local_data_array
,
test_gathered
);
}
else
{
dof_synchronizer
.
gather
(
local_data_array
);
local_data_array
.
set
(
-
1
);
dof_synchronizer
.
scatter
(
local_data_array
);
}
test_data
();
finalize
();
return
0
;
}
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