/usr/include/trilinos/AZOO_iterate.h is in libtrilinos-aztecoo-dev 12.4.2-2.
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//
// AztecOO: An Object-Oriented Aztec Linear Solver Package
// Copyright (2002) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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*/
#ifndef _AZOO_ITERATE_H_
#define _AZOO_ITERATE_H_
#ifndef __cplusplus
#define __cplusplus
#endif
#include "Epetra_Comm.h"
#include "Epetra_Map.h"
#include "Epetra_Vector.h"
#include "Epetra_VbrMatrix.h"
#include "Epetra_CrsMatrix.h"
#include "Epetra_LinearProblem.h"
#include "AztecOO.h"
#include "Aztec2Petra.h"
/*! \file
\brief AZOO_iterate: A function built around AztecOO that mimics the Aztec funciton AZ_iterate.
AZOO_iterate is intended to facilitate the smooth transition from Aztec to Trilinos/AztecOO.
The AZOO_iterate interface is essentially identical to the AZ_iterate interface and should be,
for most uses a simple replacement in functionality.
However, because AztecOO uses Petra for
distributed matrix and vector services (instead of AZ_MATRIX as defined by Aztec), there will
be some differences. Some known differences are:
<ol>
<li> AZOO_iterate does not support Aztec's matrix-free version of AZ_MATRIX at this time.
Note that AztecOO has its own version of matrix-free implementation via the pure virtual
class Epetra_RowMatrix.
<li> Scaling is performed independently in AztecOO. All of the Aztec scaling options
(options[AZ_scaling]) are recognized, but block Jacobi scaling is implemented as point
Jacobi scaling.
<li> Block entry preconditioners are not supported in AztecOO. This functionality will be
provided by IFPACK in a future release.
</ol>
\warning {This function is intended as a temporary bridge for users migrating from Aztec to
Trilinos/AztecOO. As such, it is not optimal in terms of memory use. Further
flexibility can be had by copying AZOO_iterate() and customizing it to your own needs.
Ultimately, users will be best served by making a complete transition to the Trilinos/AztecOO
framework, building problems using Petra classes.
}
*/
/*! \fn void AZOO_iterate(double * xsolve, double * b,
int * options, double * params,
double * status, int *proc_config,
AZ_MATRIX * Amat,
AZ_PRECOND *precond, struct AZ_SCALING *scaling)
\brief Provides essentially equivalent functionality as the AZ_iterate function in Aztec 2.1.
*/
#ifdef __cplusplus
extern "C" void AZOO_iterate(double * xsolve, double * b,
int * options, double * params,
double * status, int *proc_config,
AZ_MATRIX * Amat,
AZ_PRECOND *precond, struct AZ_SCALING *scaling);
#endif
#endif /* _AZOO_ITERATE_H_ */
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