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Aland, Sebastian
amdis
Commits
820a1149
Commit
820a1149
authored
Oct 23, 2013
by
Praetorius, Simon
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problem stat with mass conservation added
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extensions/ProblemStatMassConserve.h
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extensions/ProblemStatMassConserve.h
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820a1149
/******************************************************************************
*
* Mass-conserving ProblemStat for AMDiS
*
* Copyright (C) 2013 Dresden University of Technology. All Rights Reserved.
* Web: https://fusionforge.zih.tu-dresden.de/projects/amdis/trunk/extensions
*
* Author: Simon Praetorius
*
* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
* WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
*
* See also license.opensource.txt in the distribution.
*
******************************************************************************/
/** \file ProblemStatMassConserve.h */
#ifndef PROBLEM_STAT_MASS_CONSERVE
#define PROBLEM_STAT_MASS_CONSERVE
#include "ExtendedProblemStat.h"
/// Implementation of ProblemStat to allow for the conservation of mass of one
/// solution component, i.e. project the old-solution to the new mesh so that
/// the scalar-product is conserved: \f$ (u^*, v) = (u^\text{old}, v) \f$, where \f$ u^*,v \f$ live on the
/// new mesh and \f$ u^\text{old} \f$ lives on the old mesh.
struct
ProblemStatMassConserve
:
public
ExtendedProblemStat
{
/// constructor: create a temporary problem that is initialized with
/// similar parameters as the regular one, except one additional component
/// with an extra mesh for a temporary oldSolution
ProblemStatMassConserve
(
std
::
string
name_
)
:
ExtendedProblemStat
(
name_
),
initialMeshAdoption
(
false
),
prob2
(
nullptr
),
comp
(
0
)
{
#ifdef HAVE_PARALLEL_DOMAIN_AMDIS
TEST_EXIT
(
false
)(
"Multi-Mesh approach does not work in parallel mode for the moment. Need to be implemented!
\n
"
);
#endif
Parameters
::
get
(
name_
+
"->mass conservation component"
,
comp
);
// set parameters for the temporary problem
std
::
string
name2
=
name_
+
"_tmp"
;
int
zero
=
0
;
int
one
=
1
;
int
two
=
2
;
double
tol
=
1.e-8
;
int
degree
=
1
;
int
dim
=
1
;
std
::
string
meshName
=
""
;
Parameters
::
get
(
name_
+
"->polynomial degree["
+
boost
::
lexical_cast
<
std
::
string
>
(
comp
)
+
"]"
,
degree
);
Parameters
::
get
(
name_
+
"->dim"
,
dim
);
Parameters
::
get
(
name_
+
"->mesh"
,
meshName
);
Parameters
::
set
(
name2
+
"->components"
,
two
);
Parameters
::
set
(
name2
+
"->polynomial degree[0]"
,
degree
);
Parameters
::
set
(
name2
+
"->polynomial degree[1]"
,
degree
);
Parameters
::
set
(
name2
+
"->dim"
,
dim
);
Parameters
::
set
(
name2
+
"->mesh"
,
meshName
);
Parameters
::
set
(
name2
+
"->refinement set[0]"
,
one
);
Parameters
::
set
(
name2
+
"->refinement set[1]"
,
two
);
#if defined HAVE_UMFPACK || defined HAVE_PARALLEL_PETSC || defined HAVE_PETSC
std
::
string
solverName
=
"direct"
;
#else
std
::
string
solverName
=
"cg"
;
#endif
Parameters
::
set
(
name2
+
"->solver"
,
solverName
);
Parameters
::
set
(
name2
+
"->tolerance"
,
tol
);
Parameters
::
set
(
name2
+
"->info"
,
zero
);
// create a new temporary problem
prob2
=
new
ProblemStat
(
name2
);
}
~
ProblemStatMassConserve
()
{
if
(
prob2
!=
nullptr
)
{
delete
prob2
;
prob2
=
nullptr
;
}
}
/// make shure that temporary problem has an equal mesh as regular problem
/// and initialize this mesh only once
void
initialize
(
Flag
initFlag
,
ProblemStatSeq
*
adoptProblem
=
NULL
,
Flag
adoptFlag
=
INIT_NOTHING
)
override
{
ExtendedProblemStat
::
initialize
(
initFlag
-
INIT_MESH
,
adoptProblem
,
adoptFlag
);
// create meshes for prob
std
::
vector
<
Mesh
*>
meshes2
;
meshes2
.
push_back
(
getMesh
(
comp
));
prob2
->
setComponentMesh
(
0
,
getMesh
(
comp
));
int
refSet
=
-
1
;
Parameters
::
get
(
name
+
"_tmp->refinement set[0]"
,
refSet
);
if
(
refSet
<
0
)
refSet
=
0
;
std
::
map
<
int
,
Mesh
*>
meshForRefinementSet
;
meshForRefinementSet
[
refSet
]
=
meshes2
[
0
];
for
(
int
i
=
1
;
i
<
prob2
->
getNumComponents
();
i
++
)
{
refSet
=
-
1
;
Parameters
::
get
(
name
+
"_tmp->refinement set["
+
lexical_cast
<
string
>
(
i
)
+
"]"
,
refSet
);
if
(
refSet
<
0
)
refSet
=
0
;
if
(
meshForRefinementSet
[
refSet
]
==
nullptr
)
{
Mesh
*
newMesh
=
new
Mesh
(
getMesh
(
comp
)
->
getName
(),
getMesh
(
comp
)
->
getDim
());
meshForRefinementSet
[
refSet
]
=
newMesh
;
meshes2
.
push_back
(
newMesh
);
}
prob2
->
setComponentMesh
(
i
,
meshForRefinementSet
[
refSet
]);
}
prob2
->
setMeshes
(
meshes2
);
prob2
->
initialize
(
INIT_ALL
-
INIT_MESH
);
for
(
size_t
i
=
1
;
i
<
meshes2
.
size
();
i
++
)
{
int
globalRefinements
=
0
;
// If AMDiS is compiled for parallel computations, the global refinements are
// ignored here. Later, each rank will add the global refinements to its
// private mesh.
#ifndef HAVE_PARALLEL_DOMAIN_AMDIS
Parameters
::
get
(
meshes2
[
i
]
->
getName
()
+
"->global refinements"
,
globalRefinements
);
#endif
bool
initMesh
=
true
;
// Initialize the meshes if there is no serialization file.
if
(
initMesh
&&
meshes2
[
i
]
&&
!
(
meshes2
[
i
]
->
isInitialized
()))
meshes2
[
i
]
->
initialize
();
// do global refinements
if
(
initMesh
&&
meshes2
[
i
])
prob2
->
getRefinementManager
()
->
globalRefine
(
meshes2
[
i
],
globalRefinements
);
}
for
(
int
i
=
0
;
i
<
prob2
->
getNumComponents
();
i
++
)
prob2
->
getSolution
(
i
)
->
setCoarsenOperation
(
NO_OPERATION
);
fillOperators
();
}
/// in the first iteration copy initial-solution to temporary problem
/// and prepare the temporary mesh
void
buildBeforeRefine
(
AdaptInfo
*
adaptInfo
,
Flag
markFlag
)
override
{
if
(
!
initialMeshAdoption
)
{
MeshStructure
meshStructure2
;
meshStructure2
.
init
(
getMesh
(
comp
));
prob2
->
getCoarseningManager
()
->
globalCoarsen
(
prob2
->
getMesh
(
1
),
-
2
);
meshStructure2
.
fitMeshToStructure
(
prob2
->
getMesh
(
1
),
prob2
->
getRefinementManager
());
prob2
->
getSolution
(
1
)
->
interpol
(
getSolution
(
comp
));
initialMeshAdoption
=
true
;
}
ExtendedProblemStat
::
buildBeforeRefine
(
adaptInfo
,
markFlag
);
}
/// solve temporary problem to project solution to new mesh and then
/// copy temporary solution back to regular solution
void
buildAfterCoarsen
(
AdaptInfo
*
adaptInfo
,
Flag
markFlag
,
bool
asmM
,
bool
asmV
)
override
{
prob2
->
buildAfterCoarsen
(
adaptInfo
,
markFlag
,
true
,
true
);
solve2
(
adaptInfo
);
getSolution
(
comp
)
->
copy
(
*
prob2
->
getSolution
(
0
));
// call original buildAfterCoarsen
ExtendedProblemStat
::
buildAfterCoarsen
(
adaptInfo
,
markFlag
,
asmM
,
asmV
);
}
/// copy solution to temporary problem after regular solve
void
solve
(
AdaptInfo
*
adaptInfo
,
bool
createMatrixData
=
true
,
bool
storeMatrixData
=
false
)
override
{
ExtendedProblemStat
::
solve
(
adaptInfo
,
createMatrixData
,
storeMatrixData
);
MeshStructure
meshStructure2
;
meshStructure2
.
init
(
getMesh
(
comp
));
prob2
->
getCoarseningManager
()
->
globalCoarsen
(
prob2
->
getMesh
(
1
),
-
2
);
meshStructure2
.
fitMeshToStructure
(
prob2
->
getMesh
(
1
),
prob2
->
getRefinementManager
());
prob2
->
getSolution
(
1
)
->
interpol
(
getSolution
(
comp
));
}
/// solve only one block of temporary problem
void
solve2
(
AdaptInfo
*
adaptInfo
,
bool
createMatrixData
=
true
,
bool
storeMatrixData
=
false
)
{
SolverMatrix
<
Matrix
<
DOFMatrix
*>
>
solverMatrix_
;
Matrix
<
DOFMatrix
*>
mat
(
1
,
1
);
mat
[
0
][
0
]
=
prob2
->
getSystemMatrix
(
0
,
0
);
solverMatrix_
.
setMatrix
(
mat
);
std
::
vector
<
const
FiniteElemSpace
*>
feSpaces0
;
feSpaces0
.
push_back
(
prob2
->
getFeSpace
(
0
));
SystemVector
vec_sol
(
"solution_0"
,
feSpaces
,
1
,
false
);
vec_sol
.
setDOFVector
(
0
,
prob2
->
getSolution
(
0
));
SystemVector
vec_rhs
(
"rhs_0"
,
feSpaces
,
1
,
false
);
vec_rhs
.
setDOFVector
(
0
,
prob2
->
getRhsVector
(
0
));
// solve only one block of the system
prob2
->
getSolver
()
->
solveSystem
(
solverMatrix_
,
vec_sol
,
vec_rhs
,
createMatrixData
,
storeMatrixData
);
}
/// add mass-matrix and transfer-operator to temporary problem, to
/// project solution to new mesh
void
fillOperators
()
{
// conversion propblem 2
const
FiniteElemSpace
*
feSpace2_0
=
prob2
->
getFeSpace
(
0
);
const
FiniteElemSpace
*
feSpace2_1
=
prob2
->
getFeSpace
(
1
);
Operator
*
opMnew0
=
new
Operator
(
feSpace2_0
,
feSpace2_0
);
opMnew0
->
addTerm
(
new
Simple_ZOT
);
Operator
*
opMold01
=
new
Operator
(
feSpace2_0
,
feSpace2_1
);
opMold01
->
addTerm
(
new
VecAtQP_ZOT
(
prob2
->
getSolution
(
1
)));
// assemble only one block of the system
prob2
->
addMatrixOperator
(
*
opMnew0
,
0
,
0
);
prob2
->
addVectorOperator
(
*
opMold01
,
0
);
}
private:
/// true if initial-solution/-mesh is copied to temporary problem
bool
initialMeshAdoption
;
/// temporary problem for the projection of the old-solution to the new mesh
ProblemStat
*
prob2
;
/// component the should be copnserved
int
comp
;
};
#endif // PROBLEM_STAT_MASS_CONSERVE
\ No newline at end of file
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