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test_solid_mechanics_model_bar_traction2d_parallel.cc
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Sun, Sep 15, 09:48
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rAKA akantu
test_solid_mechanics_model_bar_traction2d_parallel.cc
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/**
* @file test_solid_mechanics_model_bar_traction2d_parallel.cc
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Sun Sep 12 2010
* @date last modification: Thu Jun 05 2014
*
* @brief test of the class SolidMechanicsModel
*
* @section LICENSE
*
* Copyright (©) 2010-2012, 2014 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 <limits>
#include <fstream>
#include "mpi.h"
/* -------------------------------------------------------------------------- */
#include "solid_mechanics_model.hh"
using
namespace
akantu
;
int
main
(
int
argc
,
char
*
argv
[])
{
akantu
::
UInt
spatial_dimension
=
2
;
akantu
::
UInt
max_steps
=
5000
;
akantu
::
Real
time_factor
=
0.8
;
akantu
::
initialize
(
"material.dat"
,
argc
,
argv
);
akantu
::
Mesh
mesh
(
spatial_dimension
);
akantu
::
StaticCommunicator
&
comm
=
akantu
::
StaticCommunicator
::
getStaticCommunicator
();
akantu
::
Int
psize
=
comm
.
getNbProc
();
akantu
::
Int
prank
=
comm
.
whoAmI
();
akantu
::
debug
::
setDebugLevel
(
akantu
::
dblWarning
);
akantu
::
MeshPartition
*
partition
=
NULL
;
if
(
prank
==
0
)
{
mesh
.
read
(
"bar2.msh"
);
partition
=
new
akantu
::
MeshPartitionScotch
(
mesh
,
spatial_dimension
);
partition
->
partitionate
(
psize
);
}
/* ------------------------------------------------------------------------ */
/* Initialization */
/* ------------------------------------------------------------------------ */
akantu
::
SolidMechanicsModel
model
(
mesh
);
/// model initialization
model
.
initParallel
(
partition
);
model
.
initFull
();
if
(
prank
==
0
)
std
::
cout
<<
model
.
getMaterial
(
0
)
<<
std
::
endl
;
model
.
assembleMassLumped
();
akantu
::
UInt
nb_nodes
=
mesh
.
getNbNodes
();
/* ------------------------------------------------------------------------ */
/* Boundary + initial conditions */
/* ------------------------------------------------------------------------ */
akantu
::
Real
eps
=
1e-16
;
const
akantu
::
Array
<
akantu
::
Real
>
&
pos
=
mesh
.
getNodes
();
akantu
::
Array
<
akantu
::
Real
>
&
disp
=
model
.
getDisplacement
();
akantu
::
Array
<
bool
>
&
boun
=
model
.
getBlockedDOFs
();
for
(
akantu
::
UInt
i
=
0
;
i
<
nb_nodes
;
++
i
)
{
if
(
pos
(
i
,
0
)
>=
9.
)
disp
(
i
,
0
)
=
(
pos
(
i
,
0
)
-
9
)
/
100.
;
if
(
pos
(
i
)
<=
eps
)
boun
(
i
,
0
)
=
true
;
if
(
pos
(
i
,
1
)
<=
eps
||
pos
(
i
,
1
)
>=
1
-
eps
)
boun
(
i
,
1
)
=
true
;
}
model
.
synchronizeBoundaries
();
model
.
updateResidual
();
model
.
setBaseName
(
"bar2d_parallel"
);
model
.
addDumpField
(
"displacement"
);
model
.
addDumpField
(
"mass"
);
model
.
addDumpField
(
"velocity"
);
model
.
addDumpField
(
"acceleration"
);
model
.
addDumpField
(
"force"
);
model
.
addDumpField
(
"residual"
);
model
.
addDumpField
(
"stress"
);
model
.
addDumpField
(
"strain"
);
model
.
addDumpField
(
"partitions"
);
model
.
dump
();
std
::
ofstream
energy
;
if
(
prank
==
0
)
{
energy
.
open
(
"energy_bar_2d_para.csv"
);
energy
<<
"id,rtime,epot,ekin,tot"
<<
std
::
endl
;
}
double
total_time
=
0.
;
/// Setting time step
akantu
::
Real
time_step
=
model
.
getStableTimeStep
()
*
time_factor
;
if
(
prank
==
0
)
std
::
cout
<<
"Time Step = "
<<
time_step
<<
"s"
<<
std
::
endl
;
model
.
setTimeStep
(
time_step
);
/* ------------------------------------------------------------------------ */
/* Main loop */
/* ------------------------------------------------------------------------ */
for
(
akantu
::
UInt
s
=
1
;
s
<=
max_steps
;
++
s
)
{
double
start
=
MPI_Wtime
();
model
.
explicitPred
();
model
.
updateResidual
();
model
.
updateAcceleration
();
model
.
explicitCorr
();
double
end
=
MPI_Wtime
();
akantu
::
Real
epot
=
model
.
getPotentialEnergy
();
akantu
::
Real
ekin
=
model
.
getKineticEnergy
();
total_time
+=
end
-
start
;
if
(
prank
==
0
&&
(
s
%
100
==
0
))
{
std
::
cerr
<<
"passing step "
<<
s
<<
"/"
<<
max_steps
<<
std
::
endl
;
}
energy
<<
s
<<
","
<<
(
s
-
1
)
*
time_step
<<
","
<<
epot
<<
","
<<
ekin
<<
","
<<
epot
+
ekin
<<
std
::
endl
;
if
(
s
%
100
==
0
)
{
model
.
dump
();
}
}
if
(
prank
==
0
)
std
::
cout
<<
"Time : "
<<
psize
<<
" "
<<
total_time
/
max_steps
<<
" "
<<
total_time
<<
std
::
endl
;
akantu
::
finalize
();
return
EXIT_SUCCESS
;
}
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