Zoltan2
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VectorAdapter defines the interface for vector input. More...
#include <Zoltan2_VectorAdapter.hpp>
Public Member Functions | |
virtual | ~VectorAdapter () |
Destructor. | |
enum BaseAdapterType | adapterType () const override |
Returns the type of adapter. | |
virtual int | getNumEntriesPerID () const =0 |
Return the number of vectors. | |
virtual void | getEntriesView (const scalar_t *&elements, int &stride, int idx=0) const |
Provide a pointer to the elements of the specified vector. | |
virtual void | getEntriesKokkosView (Kokkos::View< scalar_t **, Kokkos::LayoutLeft, typename node_t::device_type > &elements) const |
Provide a Kokkos view to the elements of the specified vector. | |
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. | |
int | getDimension () const |
void | getCoordinatesView (const scalar_t *&elements, int &stride, int idx=0) const override |
void | getCoordinatesKokkosView (Kokkos::View< scalar_t **, Kokkos::LayoutLeft, typename node_t::device_type > &elements) const override |
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virtual void | getCoordinatesView (const typename BaseAdapter< User >::scalar_t *&coords, int &stride, int coordDim) const =0 |
virtual void | getCoordinatesKokkosView (Kokkos::View< typename BaseAdapter< User >::scalar_t **, Kokkos::LayoutLeft, typename BaseAdapter< User >::node_t::device_type > &elements) const =0 |
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virtual enum BaseAdapterType | adapterType () const =0 |
Returns the type of adapter. | |
virtual | ~BaseAdapter () |
Destructor. | |
virtual void | getIDsView (const gno_t *&ids) const |
Provide a pointer to this process' identifiers. | |
virtual void | getIDsKokkosView (Kokkos::View< const gno_t *, typename node_t::device_type > &ids) const |
Provide a Kokkos view to this process' identifiers. | |
void | getPartsView (const part_t *&inputPart) const |
Provide pointer to a weight array with stride. | |
template<typename Adapter > | |
void | applyPartitioningSolution (const User &in, User *&out, const PartitioningSolution< Adapter > &solution) const |
Apply a PartitioningSolution to an input. | |
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virtual | ~BaseAdapterRoot () |
virtual size_t | getLocalNumIDs () const =0 |
Returns the number of objects on this process. | |
virtual 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. | |
Additional Inherited Members | |
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typedef InputTraits< User >::lno_t | lno_t |
typedef InputTraits< User >::gno_t | gno_t |
typedef InputTraits< User >::scalar_t | scalar_t |
typedef InputTraits< User >::node_t | node_t |
typedef InputTraits< User >::part_t | part_t |
typedef InputTraits< User >::offset_t | offset_t |
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void | generateWeightFileOnly (const char *fileprefix, const Teuchos::Comm< int > &comm) const |
VectorAdapter defines the interface for vector input.
Adapter objects provide access for Zoltan2 to the user's data. Many built-in adapters are already defined for common data structures, such as Tpetra and Epetra objects and C-language pointers to arrays.
Data types:
scalar_t
weights and vector element values lno_t
local indices and local counts gno_t
global indices and global counts node_t
is a Kokkos Node typeThe Kokkos node type can be safely ignored.
The template parameter User
is a user-defined data type which, through a traits mechanism, provides the actual data types with which the Zoltan2 library will be compiled. User
may be the actual class or structure used by application to represent a vector, or it may be the helper class BasicUserTypes. See InputTraits for more information.
The scalar_t
type, representing use data such as matrix 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
.
VectorAdapter may be a single vector or a set of corresponding vectors which have with the same global identifiers and the same distribution across processes.
Definition at line 98 of file Zoltan2_VectorAdapter.hpp.
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inlinevirtual |
Destructor.
Definition at line 115 of file Zoltan2_VectorAdapter.hpp.
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inlineoverridevirtual |
Returns the type of adapter.
Implements Zoltan2::BaseAdapter< User >.
Definition at line 121 of file Zoltan2_VectorAdapter.hpp.
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pure virtual |
Return the number of vectors.
Implemented in Zoltan2::BasicVectorAdapter< User >, Zoltan2::XpetraMultiVectorAdapter< User >, OldSchoolVectorAdapterContig< User >, OldSchoolVectorAdapterStrided< User >, KokkosVectorAdapter< User >, and VerySimpleVectorAdapter< User >.
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inlinevirtual |
Provide a pointer to the elements of the specified vector.
elements | will on return point to the vector values corresponding to the global Ids. |
stride | the k'th element is located at elements[stride*k] |
idx | ranges from zero to one less than getNumEntriesPerID(), and represents the vector for which data is being requested. |
Reimplemented in Zoltan2::XpetraMultiVectorAdapter< User >, and Zoltan2::BasicVectorAdapter< User >.
Definition at line 139 of file Zoltan2_VectorAdapter.hpp.
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inlinevirtual |
Provide a Kokkos view to the elements of the specified vector.
elements | will on return point to the vector values corresponding to the global Ids. |
Reimplemented in Zoltan2::XpetraMultiVectorAdapter< User >, and Zoltan2::BasicVectorAdapter< User >.
Definition at line 156 of file Zoltan2_VectorAdapter.hpp.
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inline |
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.
Definition at line 190 of file Zoltan2_VectorAdapter.hpp.
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inline |
Definition at line 207 of file Zoltan2_VectorAdapter.hpp.
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inlineoverride |
Definition at line 209 of file Zoltan2_VectorAdapter.hpp.
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inlineoverride |
Definition at line 215 of file Zoltan2_VectorAdapter.hpp.