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* Copyright (c) 2008, Lawrence Livermore National Security, LLC.
* Produced at the Lawrence Livermore National Laboratory.
* This file is part of HYPRE. See file COPYRIGHT for details.
*
* HYPRE 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) version 2.1 dated February 1999.
*
* $Revision: 2.25 $
***********************************************************************EHEADER*/
#ifndef HYPRE_SSTRUCT_MV_HEADER
#define HYPRE_SSTRUCT_MV_HEADER
#include "HYPRE_utilities.h"
#include "HYPRE.h"
#include "HYPRE_struct_mv.h"
#include "HYPRE_IJ_mv.h"
#ifdef __cplusplus
extern "C" {
#endif
/*--------------------------------------------------------------------------
*--------------------------------------------------------------------------*/
/**
* @name SStruct System Interface
*
* This interface represents a semi-structured-grid conceptual view of a linear
* system.
*
* @memo A semi-structured-grid conceptual interface
**/
/*@{*/
/*--------------------------------------------------------------------------
*--------------------------------------------------------------------------*/
/**
* @name SStruct Grids
**/
/*@{*/
struct hypre_SStructGrid_struct;
/**
* A grid object is constructed out of several structured ``parts'' and an
* optional unstructured ``part''. Each structured part has its own abstract
* index space.
**/
typedef struct hypre_SStructGrid_struct *HYPRE_SStructGrid;
enum hypre_SStructVariable_enum
{
HYPRE_SSTRUCT_VARIABLE_UNDEFINED = -1,
HYPRE_SSTRUCT_VARIABLE_CELL = 0,
HYPRE_SSTRUCT_VARIABLE_NODE = 1,
HYPRE_SSTRUCT_VARIABLE_XFACE = 2,
HYPRE_SSTRUCT_VARIABLE_YFACE = 3,
HYPRE_SSTRUCT_VARIABLE_ZFACE = 4,
HYPRE_SSTRUCT_VARIABLE_XEDGE = 5,
HYPRE_SSTRUCT_VARIABLE_YEDGE = 6,
HYPRE_SSTRUCT_VARIABLE_ZEDGE = 7
};
/**
* An enumerated type that supports cell centered, node centered, face centered,
* and edge centered variables. Face centered variables are split into x-face,
* y-face, and z-face variables, and edge centered variables are split into
* x-edge, y-edge, and z-edge variables. The edge centered variable types are
* only used in 3D. In 2D, edge centered variables are handled by the face
* centered types.
*
* Variables are referenced relative to an abstract (cell centered) index in the
* following way:
* \begin{itemize}
* \item cell centered variables are aligned with the index;
* \item node centered variables are aligned with the cell corner
* at relative index (1/2, 1/2, 1/2);
* \item x-face, y-face, and z-face centered variables are aligned
* with the faces at relative indexes (1/2, 0, 0), (0, 1/2, 0),
* and (0, 0, 1/2), respectively;
* \item x-edge, y-edge, and z-edge centered variables are aligned
* with the edges at relative indexes (0, 1/2, 1/2), (1/2, 0, 1/2),
* and (1/2, 1/2, 0), respectively.
* \end{itemize}
*
* The supported identifiers are:
* \begin{itemize}
* \item {\tt HYPRE\_SSTRUCT\_VARIABLE\_CELL}
* \item {\tt HYPRE\_SSTRUCT\_VARIABLE\_NODE}
* \item {\tt HYPRE\_SSTRUCT\_VARIABLE\_XFACE}
* \item {\tt HYPRE\_SSTRUCT\_VARIABLE\_YFACE}
* \item {\tt HYPRE\_SSTRUCT\_VARIABLE\_ZFACE}
* \item {\tt HYPRE\_SSTRUCT\_VARIABLE\_XEDGE}
* \item {\tt HYPRE\_SSTRUCT\_VARIABLE\_YEDGE}
* \item {\tt HYPRE\_SSTRUCT\_VARIABLE\_ZEDGE}
* \end{itemize}
*
* NOTE: Although variables are referenced relative to a unique abstract
* cell-centered index, some variables are associated with multiple grid cells.
* For example, node centered variables in 3D are associated with 8 cells (away
* from boundaries). Although grid cells are distributed uniquely to different
* processes, variables may be owned by multiple processes because they may be
* associated with multiple cells.
**/
typedef enum hypre_SStructVariable_enum HYPRE_SStructVariable;
/**
* Create an {\tt ndim}-dimensional grid object with {\tt nparts} structured
* parts.
**/
int HYPRE_SStructGridCreate(MPI_Comm comm,
int ndim,
int nparts,
HYPRE_SStructGrid *grid);
/**
* Destroy a grid object. An object should be explicitly destroyed using this
* destructor when the user's code no longer needs direct access to it. Once
* destroyed, the object must not be referenced again. Note that the object may
* not be deallocated at the completion of this call, since there may be
* internal package references to the object. The object will then be destroyed
* when all internal reference counts go to zero.
**/
int HYPRE_SStructGridDestroy(HYPRE_SStructGrid grid);
/**
* Set the extents for a box on a structured part of the grid.
**/
int HYPRE_SStructGridSetExtents(HYPRE_SStructGrid grid,
int part,
int *ilower,
int *iupper);
/**
* Describe the variables that live on a structured part of the grid.
**/
int HYPRE_SStructGridSetVariables(HYPRE_SStructGrid grid,
int part,
int nvars,
HYPRE_SStructVariable *vartypes);
/**
* Describe additional variables that live at a particular index. These
* variables are appended to the array of variables set in
* \Ref{HYPRE_SStructGridSetVariables}, and are referenced as such.
**/
int HYPRE_SStructGridAddVariables(HYPRE_SStructGrid grid,
int part,
int *index,
int nvars,
HYPRE_SStructVariable *vartypes);
/**
* Describe how regions just outside of a part relate to other parts. This is
* done a box at a time.
*
* Parts {\tt part} and {\tt nbor\_part} must be different, except in the case
* where only cell-centered data is used.
*
* Indexes should increase from {\tt ilower} to {\tt iupper}. It is not
* necessary that indexes increase from {\tt nbor\_ilower} to {\tt
* nbor\_iupper}. This is to ease the transition from the old {\tt
* SetNeighborBox} function, and to provide some flexibility for users.
*
* The {\tt index\_map} describes the mapping of indexes 0, 1, and 2 on part
* {\tt part} to the corresponding indexes on part {\tt nbor\_part}. For
* example, triple (1, 2, 0) means that indexes 0, 1, and 2 on part {\tt part}
* map to indexes 1, 2, and 0 on part {\tt nbor\_part}, respectively.
*
* The {\tt index\_dir} describes the direction of the mapping in {\tt
* index\_map}. For example, triple (1, 1, -1) means that for indexes 0 and 1,
* increasing values map to increasing values on {\tt nbor\_part}, while for
* index 2, decreasing values map to increasing values.
*
* NOTE: All parts related to each other via this routine must have an identical
* list of variables and variable types. For example, if part 0 has only two
* variables on it, a cell centered variable and a node centered variable, and
* we declare part 1 to be a neighbor of part 0, then part 1 must also have only
* two variables on it, and they must be of type cell and node. In addition,
* variables associated with FACEs or EDGEs must be grouped together and listed
* in X, Y, Z order. This is to enable the code to correctly associate
* variables on one part with variables on its neighbor part when a coordinate
* transformation is specified. For example, an XFACE variable on one part may
* correspond to a YFACE variable on a neighbor part under a particular
* tranformation, and the code determines this association by assuming that the
* variable lists are as noted here.
**/
int HYPRE_SStructGridSetNeighborPart(HYPRE_SStructGrid grid,
int part,
int *ilower,
int *iupper,
int nbor_part,
int *nbor_ilower,
int *nbor_iupper,
int *index_map,
int *index_dir);
/**
* (DEFUNCT) Describe how regions just outside of a part relate to other parts.
* This is done a box at a time. SHOULD USE {\tt SetNeighborPart} INSTEAD!
*
* Parts {\tt part} and {\tt nbor\_part} must be different, except in the case
* where only cell-centered data is used.
*
* The indexes {\tt ilower} and {\tt iupper} map directly to the indexes {\tt
* nbor\_ilower} and {\tt nbor\_iupper}. Although, it is required that indexes
* increase from {\tt ilower} to {\tt iupper}, indexes may increase and/or
* decrease from {\tt nbor\_ilower} to {\tt nbor\_iupper}.
*
* The {\tt index\_map} describes the mapping of indexes 0, 1, and 2 on part
* {\tt part} to the corresponding indexes on part {\tt nbor\_part}. For
* example, triple (1, 2, 0) means that indexes 0, 1, and 2 on part {\tt part}
* map to indexes 1, 2, and 0 on part {\tt nbor\_part}, respectively.
*
* NOTE: All parts related to each other via this routine must have an identical
* list of variables and variable types. For example, if part 0 has only two
* variables on it, a cell centered variable and a node centered variable, and
* we declare part 1 to be a neighbor of part 0, then part 1 must also have only
* two variables on it, and they must be of type cell and node.
**/
int HYPRE_SStructGridSetNeighborBox(HYPRE_SStructGrid grid,
int part,
int *ilower,
int *iupper,
int nbor_part,
int *nbor_ilower,
int *nbor_iupper,
int *index_map);
/**
* Add an unstructured part to the grid. The variables in the unstructured part
* of the grid are referenced by a global rank between 0 and the total number of
* unstructured variables minus one. Each process owns some unique consecutive
* range of variables, defined by {\tt ilower} and {\tt iupper}.
*
* NOTE: This is just a placeholder. This part of the interface is not finished.
**/
int HYPRE_SStructGridAddUnstructuredPart(HYPRE_SStructGrid grid,
int ilower,
int iupper);
/**
* Finalize the construction of the grid before using.
**/
int HYPRE_SStructGridAssemble(HYPRE_SStructGrid grid);
/**
* Set the periodicity a particular part.
*
* The argument {\tt periodic} is an {\tt ndim}-dimensional integer array that
* contains the periodicity for each dimension. A zero value for a dimension
* means non-periodic, while a nonzero value means periodic and contains the
* actual period. For example, periodicity in the first and third dimensions
* for a 10x11x12 part is indicated by the array [10,0,12].
*
* NOTE: Some of the solvers in hypre have power-of-two restrictions on the size
* of the periodic dimensions.
**/
int HYPRE_SStructGridSetPeriodic(HYPRE_SStructGrid grid,
int part,
int *periodic);
/**
* Setting ghost in the sgrids.
**/
int HYPRE_SStructGridSetNumGhost(HYPRE_SStructGrid grid,
int *num_ghost);
/*@}*/
/*--------------------------------------------------------------------------
*--------------------------------------------------------------------------*/
/**
* @name SStruct Stencils
**/
/*@{*/
struct hypre_SStructStencil_struct;
/**
* The stencil object.
**/
typedef struct hypre_SStructStencil_struct *HYPRE_SStructStencil;
/**
* Create a stencil object for the specified number of spatial dimensions and
* stencil entries.
**/
int HYPRE_SStructStencilCreate(int ndim,
int size,
HYPRE_SStructStencil *stencil);
/**
* Destroy a stencil object.
**/
int HYPRE_SStructStencilDestroy(HYPRE_SStructStencil stencil);
/**
* Set a stencil entry.
**/
int HYPRE_SStructStencilSetEntry(HYPRE_SStructStencil stencil,
int entry,
int *offset,
int var);
/*@}*/
/*--------------------------------------------------------------------------
*--------------------------------------------------------------------------*/
/**
* @name SStruct Graphs
**/
/*@{*/
struct hypre_SStructGraph_struct;
/**
* The graph object is used to describe the nonzero structure of a matrix.
**/
typedef struct hypre_SStructGraph_struct *HYPRE_SStructGraph;
/**
* Create a graph object.
**/
int HYPRE_SStructGraphCreate(MPI_Comm comm,
HYPRE_SStructGrid grid,
HYPRE_SStructGraph *graph);
/**
* Destroy a graph object.
**/
int HYPRE_SStructGraphDestroy(HYPRE_SStructGraph graph);
/**
* Set the stencil for a variable on a structured part of the grid.
**/
int HYPRE_SStructGraphSetStencil(HYPRE_SStructGraph graph,
int part,
int var,
HYPRE_SStructStencil stencil);
/**
* Add a non-stencil graph entry at a particular index. This graph entry is
* appended to the existing graph entries, and is referenced as such.
*
* NOTE: Users are required to set graph entries on all processes that own the
* associated variables. This means that some data will be multiply defined.
**/
int HYPRE_SStructGraphAddEntries(HYPRE_SStructGraph graph,
int part,
int *index,
int var,
int to_part,
int *to_index,
int to_var);
/**
* Set the storage type of the associated matrix object. It is used before
* AddEntries and Assemble to compute the right ranks in the graph.
*
* NOTE: This routine is only necessary for implementation reasons, and will
* eventually be removed.
*
* @see HYPRE_SStructMatrixSetObjectType
**/
int HYPRE_SStructGraphSetObjectType(HYPRE_SStructGraph graph,
int type);
/**
* Finalize the construction of the graph before using.
**/
int HYPRE_SStructGraphAssemble(HYPRE_SStructGraph graph);
/*@}*/
/*--------------------------------------------------------------------------
*--------------------------------------------------------------------------*/
/**
* @name SStruct Matrices
**/
/*@{*/
struct hypre_SStructMatrix_struct;
/**
* The matrix object.
**/
typedef struct hypre_SStructMatrix_struct *HYPRE_SStructMatrix;
/**
* Create a matrix object.
**/
int HYPRE_SStructMatrixCreate(MPI_Comm comm,
HYPRE_SStructGraph graph,
HYPRE_SStructMatrix *matrix);
/**
* Destroy a matrix object.
**/
int HYPRE_SStructMatrixDestroy(HYPRE_SStructMatrix matrix);
/**
* Prepare a matrix object for setting coefficient values.
**/
int HYPRE_SStructMatrixInitialize(HYPRE_SStructMatrix matrix);
/**
* Set matrix coefficients index by index. The {\tt values} array is of length
* {\tt nentries}.
*
* NOTE: For better efficiency, use \Ref{HYPRE_SStructMatrixSetBoxValues} to set
* coefficients a box at a time.
*
* NOTE: Users are required to set values on all processes that own the
* associated variables. This means that some data will be multiply defined.
*
* NOTE: The entries in this routine must all be of the same type: either
* stencil or non-stencil, but not both. Also, if they are stencil entries,
* they must all represent couplings to the same variable type (there are no
* such restrictions for non-stencil entries).
*
* If the matrix is complex, then {\tt values} consists of pairs of doubles
* representing the real and imaginary parts of each complex value.
*
* @see HYPRE_SStructMatrixSetComplex
**/
int HYPRE_SStructMatrixSetValues(HYPRE_SStructMatrix matrix,
int part,
int *index,
int var,
int nentries,
int *entries,
double *values);
/**
* Add to matrix coefficients index by index. The {\tt values} array is of
* length {\tt nentries}.
*
* NOTE: For better efficiency, use \Ref{HYPRE_SStructMatrixAddToBoxValues} to
* set coefficients a box at a time.
*
* NOTE: Users are required to set values on all processes that own the
* associated variables. This means that some data will be multiply defined.
*
* NOTE: The entries in this routine must all be of the same type: either
* stencil or non-stencil, but not both. Also, if they are stencil entries,
* they must all represent couplings to the same variable type.
*
* If the matrix is complex, then {\tt values} consists of pairs of doubles
* representing the real and imaginary parts of each complex value.
*
* @see HYPRE_SStructMatrixSetComplex
**/
int HYPRE_SStructMatrixAddToValues(HYPRE_SStructMatrix matrix,
int part,
int *index,
int var,
int nentries,
int *entries,
double *values);
/**
* Set matrix coefficients a box at a time. The data in {\tt values} is ordered
* as follows:
*
\begin{verbatim}
m = 0;
for (k = ilower[2]; k <= iupper[2]; k++)
for (j = ilower[1]; j <= iupper[1]; j++)
for (i = ilower[0]; i <= iupper[0]; i++)
for (entry = 0; entry < nentries; entry++)
{
values[m] = ...;
m++;
}
\end{verbatim}
*
* NOTE: Users are required to set values on all processes that own the
* associated variables. This means that some data will be multiply defined.
*
* NOTE: The entries in this routine must all be of the same type: either
* stencil or non-stencil, but not both. Also, if they are stencil entries,
* they must all represent couplings to the same variable type (there are no
* such restrictions for non-stencil entries).
*
* If the matrix is complex, then {\tt values} consists of pairs of doubles
* representing the real and imaginary parts of each complex value.
*
* @see HYPRE_SStructMatrixSetComplex
**/
int HYPRE_SStructMatrixSetBoxValues(HYPRE_SStructMatrix matrix,
int part,
int *ilower,
int *iupper,
int var,
int nentries,
int *entries,
double *values);
/**
* Add to matrix coefficients a box at a time. The data in {\tt values} is
* ordered as in \Ref{HYPRE_SStructMatrixSetBoxValues}.
*
* NOTE: Users are required to set values on all processes that own the
* associated variables. This means that some data will be multiply defined.
*
* NOTE: The entries in this routine must all be of stencil type. Also, they
* must all represent couplings to the same variable type.
*
* If the matrix is complex, then {\tt values} consists of pairs of doubles
* representing the real and imaginary parts of each complex value.
*
* @see HYPRE_SStructMatrixSetComplex
**/
int HYPRE_SStructMatrixAddToBoxValues(HYPRE_SStructMatrix matrix,
int part,
int *ilower,
int *iupper,
int var,
int nentries,
int *entries,
double *values);
/**
* Finalize the construction of the matrix before using.
**/
int HYPRE_SStructMatrixAssemble(HYPRE_SStructMatrix matrix);
/**
* Get matrix coefficients index by index. The {\tt values} array is of length
* {\tt nentries}.
*
* NOTE: For better efficiency, use \Ref{HYPRE_SStructMatrixGetBoxValues} to get
* coefficients a box at a time.
*
* NOTE: Users may get values on any process that owns the associated variables.
*
* NOTE: The entries in this routine must all be of the same type: either
* stencil or non-stencil, but not both. Also, if they are stencil entries,
* they must all represent couplings to the same variable type (there are no
* such restrictions for non-stencil entries).
*
* If the matrix is complex, then {\tt values} consists of pairs of doubles
* representing the real and imaginary parts of each complex value.
*
* @see HYPRE_SStructMatrixSetComplex
**/
int HYPRE_SStructMatrixGetValues(HYPRE_SStructMatrix matrix,
int part,
int *index,
int var,
int nentries,
int *entries,
double *values);
/**
* Get matrix coefficients a box at a time. The data in {\tt values} is
* ordered as in \Ref{HYPRE_SStructMatrixSetBoxValues}.
*
* NOTE: Users may get values on any process that owns the associated variables.
*
* NOTE: The entries in this routine must all be of stencil type. Also, they
* must all represent couplings to the same variable type.
*
* If the matrix is complex, then {\tt values} consists of pairs of doubles
* representing the real and imaginary parts of each complex value.
*
* @see HYPRE_SStructMatrixSetComplex
**/
int HYPRE_SStructMatrixGetBoxValues(HYPRE_SStructMatrix matrix,
int part,
int *ilower,
int *iupper,
int var,
int nentries,
int *entries,
double *values);
/**
* Define symmetry properties for the stencil entries in the matrix. The
* boolean argument {\tt symmetric} is applied to stencil entries on part {\tt
* part} that couple variable {\tt var} to variable {\tt to\_var}. A value of
* -1 may be used for {\tt part}, {\tt var}, or {\tt to\_var} to specify
* ``all''. For example, if {\tt part} and {\tt to\_var} are set to -1, then
* the boolean is applied to stencil entries on all parts that couple variable
* {\tt var} to all other variables.
*
* By default, matrices are assumed to be nonsymmetric. Significant
* storage savings can be made if the matrix is symmetric.
**/
int HYPRE_SStructMatrixSetSymmetric(HYPRE_SStructMatrix matrix,
int part,
int var,
int to_var,
int symmetric);
/**
* Define symmetry properties for all non-stencil matrix entries.
**/
int HYPRE_SStructMatrixSetNSSymmetric(HYPRE_SStructMatrix matrix,
int symmetric);
/**
* Set the storage type of the matrix object to be constructed. Currently, {\tt
* type} can be either {\tt HYPRE\_SSTRUCT} (the default), {\tt HYPRE\_STRUCT},
* or {\tt HYPRE\_PARCSR}.
*
* @see HYPRE_SStructMatrixGetObject
**/
int HYPRE_SStructMatrixSetObjectType(HYPRE_SStructMatrix matrix,
int type);
/**
* Get a reference to the constructed matrix object.
*
* @see HYPRE_SStructMatrixSetObjectType
**/
int HYPRE_SStructMatrixGetObject(HYPRE_SStructMatrix matrix,
void **object);
/**
* Set the matrix to be complex.
**/
int HYPRE_SStructMatrixSetComplex(HYPRE_SStructMatrix matrix);
/**
* Print the matrix to file. This is mainly for debugging purposes.
**/
int HYPRE_SStructMatrixPrint(const char *filename,
HYPRE_SStructMatrix matrix,
int all);
/*@}*/
/*--------------------------------------------------------------------------
*--------------------------------------------------------------------------*/
/**
* @name SStruct Vectors
**/
/*@{*/
struct hypre_SStructVector_struct;
/**
* The vector object.
**/
typedef struct hypre_SStructVector_struct *HYPRE_SStructVector;
/**
* Create a vector object.
**/
int HYPRE_SStructVectorCreate(MPI_Comm comm,
HYPRE_SStructGrid grid,
HYPRE_SStructVector *vector);
/**
* Destroy a vector object.
**/
int HYPRE_SStructVectorDestroy(HYPRE_SStructVector vector);
/**
* Prepare a vector object for setting coefficient values.
**/
int HYPRE_SStructVectorInitialize(HYPRE_SStructVector vector);
/**
* Set vector coefficients index by index.
*
* NOTE: For better efficiency, use \Ref{HYPRE_SStructVectorSetBoxValues} to set
* coefficients a box at a time.
*
* NOTE: Users are required to set values on all processes that own the
* associated variables. This means that some data will be multiply defined.
*
* If the vector is complex, then {\tt value} consists of a pair of doubles
* representing the real and imaginary parts of the complex value.
*
* @see HYPRE_SStructVectorSetComplex
**/
int HYPRE_SStructVectorSetValues(HYPRE_SStructVector vector,
int part,
int *index,
int var,
double *value);
/**
* Add to vector coefficients index by index.
*
* NOTE: For better efficiency, use \Ref{HYPRE_SStructVectorAddToBoxValues} to
* set coefficients a box at a time.
*
* NOTE: Users are required to set values on all processes that own the
* associated variables. This means that some data will be multiply defined.
*
* If the vector is complex, then {\tt value} consists of a pair of doubles
* representing the real and imaginary parts of the complex value.
*
* @see HYPRE_SStructVectorSetComplex
**/
int HYPRE_SStructVectorAddToValues(HYPRE_SStructVector vector,
int part,
int *index,
int var,
double *value);
/**
* Set vector coefficients a box at a time. The data in {\tt values} is ordered
* as follows:
*
\begin{verbatim}
m = 0;
for (k = ilower[2]; k <= iupper[2]; k++)
for (j = ilower[1]; j <= iupper[1]; j++)
for (i = ilower[0]; i <= iupper[0]; i++)
{
values[m] = ...;
m++;
}
\end{verbatim}
*
* NOTE: Users are required to set values on all processes that own the
* associated variables. This means that some data will be multiply defined.
*
* If the vector is complex, then {\tt values} consists of pairs of doubles
* representing the real and imaginary parts of each complex value.
*
* @see HYPRE_SStructVectorSetComplex
**/
int HYPRE_SStructVectorSetBoxValues(HYPRE_SStructVector vector,
int part,
int *ilower,
int *iupper,
int var,
double *values);
/**
* Add to vector coefficients a box at a time. The data in {\tt values} is
* ordered as in \Ref{HYPRE_SStructVectorSetBoxValues}.
*
* NOTE: Users are required to set values on all processes that own the
* associated variables. This means that some data will be multiply defined.
*
* If the vector is complex, then {\tt values} consists of pairs of doubles
* representing the real and imaginary parts of each complex value.
*
* @see HYPRE_SStructVectorSetComplex
**/
int HYPRE_SStructVectorAddToBoxValues(HYPRE_SStructVector vector,
int part,
int *ilower,
int *iupper,
int var,
double *values);
/**
* Finalize the construction of the vector before using.
**/
int HYPRE_SStructVectorAssemble(HYPRE_SStructVector vector);
/**
* Gather vector data so that efficient {\tt GetValues} can be done. This
* routine must be called prior to calling {\tt GetValues} to insure that
* correct and consistent values are returned, especially for non cell-centered
* data that is shared between more than one processor.
**/
int HYPRE_SStructVectorGather(HYPRE_SStructVector vector);
/**
* Get vector coefficients index by index.
*
* NOTE: For better efficiency, use \Ref{HYPRE_SStructVectorGetBoxValues} to get
* coefficients a box at a time.
*
* NOTE: Users may only get values on processes that own the associated
* variables.
*
* If the vector is complex, then {\tt value} consists of a pair of doubles
* representing the real and imaginary parts of the complex value.
*
* @see HYPRE_SStructVectorSetComplex
**/
int HYPRE_SStructVectorGetValues(HYPRE_SStructVector vector,
int part,
int *index,
int var,
double *value);
/**
* Get vector coefficients a box at a time. The data in {\tt values} is ordered
* as in \Ref{HYPRE_SStructVectorSetBoxValues}.
*
* NOTE: Users may only get values on processes that own the associated
* variables.
*
* If the vector is complex, then {\tt values} consists of pairs of doubles
* representing the real and imaginary parts of each complex value.
*
* @see HYPRE_SStructVectorSetComplex
**/
int HYPRE_SStructVectorGetBoxValues(HYPRE_SStructVector vector,
int part,
int *ilower,
int *iupper,
int var,
double *values);
/**
* Set the storage type of the vector object to be constructed. Currently, {\tt
* type} can be either {\tt HYPRE\_SSTRUCT} (the default), {\tt HYPRE\_STRUCT},
* or {\tt HYPRE\_PARCSR}.
*
* @see HYPRE_SStructVectorGetObject
**/
int HYPRE_SStructVectorSetObjectType(HYPRE_SStructVector vector,
int type);
/**
* Get a reference to the constructed vector object.
*
* @see HYPRE_SStructVectorSetObjectType
**/
int HYPRE_SStructVectorGetObject(HYPRE_SStructVector vector,
void **object);
/**
* Set the vector to be complex.
**/
int HYPRE_SStructVectorSetComplex(HYPRE_SStructVector vector);
/**
* Print the vector to file. This is mainly for debugging purposes.
**/
int HYPRE_SStructVectorPrint(const char *filename,
HYPRE_SStructVector vector,
int all);
/*@}*/
/*@}*/
/*--------------------------------------------------------------------------
*--------------------------------------------------------------------------*/
#ifdef __cplusplus
}
#endif
#endif
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