Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F79606651
mesh_partition.hh
No One
Temporary
Actions
Download File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Award Token
Subscribers
None
File Metadata
Details
File Info
Storage
Attached
Created
Tue, Aug 27, 08:18
Size
5 KB
Mime Type
text/x-c++
Expires
Thu, Aug 29, 08:18 (2 d)
Engine
blob
Format
Raw Data
Handle
19619698
Attached To
rAKA akantu
mesh_partition.hh
View Options
/**
* @file mesh_partition.hh
*
* @author David Simon Kammer <david.kammer@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Fri Jun 18 2010
* @date last modification: Tue Sep 01 2015
*
* @brief tools to partitionate a mesh
*
* @section LICENSE
*
* Copyright (©) 2010-2012, 2014, 2015 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/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_MESH_PARTITION_HH__
#define __AKANTU_MESH_PARTITION_HH__
/* -------------------------------------------------------------------------- */
#include "aka_memory.hh"
#include "aka_csr.hh"
#include "mesh.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
class
MeshPartition
:
protected
Memory
{
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public
:
MeshPartition
(
const
Mesh
&
mesh
,
UInt
spatial_dimension
,
const
ID
&
id
=
"MeshPartitioner"
,
const
MemoryID
&
memory_id
=
0
);
virtual
~
MeshPartition
();
class
EdgeLoadFunctor
{
public
:
virtual
Int
operator
()(
__attribute__
((
unused
))
const
Element
&
el1
,
__attribute__
((
unused
))
const
Element
&
el2
)
const
=
0
;
};
class
ConstEdgeLoadFunctor
:
public
EdgeLoadFunctor
{
public
:
virtual
inline
Int
operator
()(
__attribute__
((
unused
))
const
Element
&
el1
,
__attribute__
((
unused
))
const
Element
&
el2
)
const
{
return
1
;
}
};
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public
:
/// define a partition of the mesh
virtual
void
partitionate
(
UInt
nb_part
,
const
EdgeLoadFunctor
&
edge_load_func
=
ConstEdgeLoadFunctor
(),
const
Array
<
UInt
>
&
pairs
=
Array
<
UInt
>
())
=
0
;
/// reorder the nodes to reduce the filling during the factorization of a
/// matrix that has a profil based on the connectivity of the mesh
virtual
void
reorder
()
=
0
;
/// fill the partitions array with a given linearized partition information
void
fillPartitionInformation
(
const
Mesh
&
mesh
,
const
Int
*
linearized_partitions
);
protected
:
/// build the dual graph of the mesh, for all element of spatial_dimension
void
buildDualGraph
(
Array
<
Int
>
&
dxadj
,
Array
<
Int
>
&
dadjncy
,
Array
<
Int
>
&
edge_loads
,
const
EdgeLoadFunctor
&
edge_load_func
);
/// tweak the mesh to handle the PBC pairs
void
tweakConnectivity
(
const
Array
<
UInt
>
&
pairs
);
/// restore the mesh that has been tweaked
void
restoreConnectivity
();
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public
:
AKANTU_GET_MACRO
(
Partitions
,
partitions
,
const
ElementTypeMapArray
<
UInt
>
&
);
AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST
(
Partition
,
partitions
,
UInt
);
AKANTU_GET_MACRO
(
GhostPartitionCSR
,
ghost_partitions_csr
,
const
ElementTypeMap
<
CSR
<
UInt
>
>
&
);
AKANTU_GET_MACRO
(
NbPartition
,
nb_partitions
,
UInt
);
AKANTU_SET_MACRO
(
NbPartition
,
nb_partitions
,
UInt
);
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
protected
:
/// id
std
::
string
id
;
/// the mesh to partition
const
Mesh
&
mesh
;
/// dimension of the elements to consider in the mesh
UInt
spatial_dimension
;
/// number of partitions
UInt
nb_partitions
;
/// partition numbers
ElementTypeMapArray
<
UInt
>
partitions
;
ElementTypeMap
<
CSR
<
UInt
>
>
ghost_partitions_csr
;
ElementTypeMapArray
<
UInt
>
ghost_partitions
;
ElementTypeMapArray
<
UInt
>
ghost_partitions_offset
;
Array
<
UInt
>
*
permutation
;
ElementTypeMapArray
<
UInt
>
saved_connectivity
;
};
__END_AKANTU__
#ifdef AKANTU_USE_SCOTCH
#include "mesh_partition_scotch.hh"
#endif
#endif
/* __AKANTU_MESH_PARTITION_HH__ */
Event Timeline
Log In to Comment