Zoltan2
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An adapter for Xpetra::MultiVector. More...
#include <Zoltan2_XpetraMultiVectorAdapter.hpp>
Public Member Functions | |
~XpetraMultiVectorAdapter () | |
Destructor. More... | |
XpetraMultiVectorAdapter (const RCP< const User > &invector, std::vector< const scalar_t * > &weights, std::vector< int > &weightStrides) | |
Constructor. More... | |
XpetraMultiVectorAdapter (const RCP< const User > &invector) | |
Constructor for case when weights are not being used. More... | |
size_t | getLocalNumIDs () const |
Returns the number of objects on this process. More... | |
void | getIDsView (const gno_t *&ids) const |
Provide a pointer to this process' identifiers. More... | |
int | getNumWeightsPerID () const |
Returns the number of weights per object. Number of weights per object should be zero or greater. If zero, then it is assumed that all objects are equally weighted. Default is zero weights per ID. More... | |
void | getWeightsView (const scalar_t *&weights, int &stride, int idx) const |
int | getNumEntriesPerID () const |
Return the number of vectors. More... | |
void | getEntriesView (const scalar_t *&elements, int &stride, int idx=0) const |
template<typename Adapter > | |
void | applyPartitioningSolution (const User &in, User *&out, const PartitioningSolution< Adapter > &solution) const |
template<typename Adapter > | |
void | applyPartitioningSolution (const User &in, RCP< User > &out, const PartitioningSolution< Adapter > &solution) const |
Public Member Functions inherited from Zoltan2::VectorAdapter< User > | |
virtual | ~VectorAdapter () |
Destructor. More... | |
enum BaseAdapterType | adapterType () const |
Returns the type of adapter. More... | |
virtual void | getEntriesView (const scalar_t *&elements, int &stride, int idx=0) const =0 |
Provide a pointer to the elements of the specified vector. More... | |
void | generateFiles (const char *fileprefix, const Teuchos::Comm< int > &comm) const |
Write files that can be used as input to Zoltan or Zoltan2 driver Creates chaco-formatted input files for coordinates and weights that can be used as input for Zoltan or Zoltan2 drivers. This routine is SERIAL and can be quite slow. It is meant as a debugging tool only, to allow Zoltan developers to replicate performance that applications are seeing using the applicatios' input. More... | |
int | getDimension () const |
void | getCoordinatesView (const scalar_t *&elements, int &stride, int idx=0) const |
Public Member Functions inherited from Zoltan2::BaseAdapter< User > | |
virtual | ~BaseAdapter () |
Destructor. More... | |
virtual void | getIDsKokkosView (Kokkos::View< gno_t * > &) const |
Provide a pointer to this process' identifiers. More... | |
virtual void | getWeightsView (const scalar_t *&wgt, int &stride, int idx=0) const |
Provide pointer to a weight array with stride. More... | |
virtual void | getWeightsKokkosView (Kokkos::View< scalar_t * > &, int=0) const |
Provide pointer to a weight View. More... | |
void | getPartsView (const part_t *&inputPart) const |
Provide pointer to an array containing the input part assignment for each ID. The input part information may be used for re-partitioning to reduce data movement, or for mapping parts to processes. Adapters may return NULL for this pointer (the default behavior); if NULL is returned, algorithms will assume the rank. More... | |
template<typename Adapter > | |
void | applyPartitioningSolution (const User &in, User *&out, const PartitioningSolution< Adapter > &solution) const |
Apply a PartitioningSolution to an input. More... | |
Public Member Functions inherited from Zoltan2::BaseAdapterRoot | |
virtual | ~BaseAdapterRoot () |
Additional Inherited Members | |
Public Types inherited from Zoltan2::BaseAdapter< User > | |
typedef InputTraits< User >::lno_t | lno_t |
typedef InputTraits< User >::gno_t | gno_t |
typedef InputTraits< User > ::scalar_t | scalar_t |
typedef InputTraits< User >::part_t | part_t |
typedef InputTraits< User > ::offset_t | offset_t |
Protected Member Functions inherited from Zoltan2::BaseAdapter< User > | |
void | generateWeightFileOnly (const char *fileprefix, const Teuchos::Comm< int > &comm) const |
An adapter for Xpetra::MultiVector.
The template parameter is the user's input object:
Epetra_MultiVector
Tpetra::MultiVector
Xpetra::MultiVector
The scalar_t
type, representing use data such as vector values, is used by Zoltan2 for weights, coordinates, part sizes and quality metrics. Some User types (like Tpetra::CrsMatrix) have an inherent scalar type, and some (like Tpetra::CrsGraph) do not. For such objects, the scalar type is set by Zoltan2 to float
. If you wish to change it to double, set the second template parameter to double
.
Definition at line 83 of file Zoltan2_XpetraMultiVectorAdapter.hpp.
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inline |
Destructor.
Definition at line 102 of file Zoltan2_XpetraMultiVectorAdapter.hpp.
Zoltan2::XpetraMultiVectorAdapter< User >::XpetraMultiVectorAdapter | ( | const RCP< const User > & | invector, |
std::vector< const scalar_t * > & | weights, | ||
std::vector< int > & | weightStrides | ||
) |
Constructor.
invector | the user's Xpetra, Tpetra or Epetra MultiVector object |
weights | a list of pointers to arrays of weights. The number of weights per multivector element is assumed to be weights.size() . |
weightStrides | a list of strides for the weights . The weight for weight index n for multivector element k should be found at weights[n][weightStrides[n] * k] . If weightStrides.size() is zero, it is assumed all strides are one. |
The values pointed to the arguments must remain valid for the lifetime of this Adapter.
Definition at line 188 of file Zoltan2_XpetraMultiVectorAdapter.hpp.
Zoltan2::XpetraMultiVectorAdapter< User >::XpetraMultiVectorAdapter | ( | const RCP< const User > & | invector | ) |
Constructor for case when weights are not being used.
invector | the user's Xpetra, Tpetra or Epetra MultiVector object |
Definition at line 221 of file Zoltan2_XpetraMultiVectorAdapter.hpp.
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inlinevirtual |
Returns the number of objects on this process.
Objects may be coordinates, graph vertices, matrix rows, etc. They are the objects to be partitioned, ordered, or colored.
Implements Zoltan2::BaseAdapterRoot.
Definition at line 134 of file Zoltan2_XpetraMultiVectorAdapter.hpp.
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inlinevirtual |
Provide a pointer to this process' identifiers.
ids | will on return point to the list of the global Ids for this process. |
Reimplemented from Zoltan2::BaseAdapter< User >.
Definition at line 136 of file Zoltan2_XpetraMultiVectorAdapter.hpp.
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inlinevirtual |
Returns the number of weights per object. Number of weights per object should be zero or greater. If zero, then it is assumed that all objects are equally weighted. Default is zero weights per ID.
Reimplemented from Zoltan2::BaseAdapterRoot.
Definition at line 141 of file Zoltan2_XpetraMultiVectorAdapter.hpp.
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inline |
Definition at line 143 of file Zoltan2_XpetraMultiVectorAdapter.hpp.
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inlinevirtual |
Return the number of vectors.
Implements Zoltan2::VectorAdapter< User >.
Definition at line 161 of file Zoltan2_XpetraMultiVectorAdapter.hpp.
void Zoltan2::XpetraMultiVectorAdapter< User >::getEntriesView | ( | const scalar_t *& | elements, |
int & | stride, | ||
int | idx = 0 |
||
) | const |
Definition at line 238 of file Zoltan2_XpetraMultiVectorAdapter.hpp.
void Zoltan2::XpetraMultiVectorAdapter< User >::applyPartitioningSolution | ( | const User & | in, |
User *& | out, | ||
const PartitioningSolution< Adapter > & | solution | ||
) | const |
Definition at line 281 of file Zoltan2_XpetraMultiVectorAdapter.hpp.
void Zoltan2::XpetraMultiVectorAdapter< User >::applyPartitioningSolution | ( | const User & | in, |
RCP< User > & | out, | ||
const PartitioningSolution< Adapter > & | solution | ||
) | const |
Definition at line 305 of file Zoltan2_XpetraMultiVectorAdapter.hpp.