/usr/include/idas/idas_band.h is in libsundials-serial-dev 2.5.0-3+b3.
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* -----------------------------------------------------------------
* $Revision: 1.7 $
* $Date: 2010/12/01 22:15:15 $
* -----------------------------------------------------------------
* Programmer(s): Alan C. Hindmarsh, and Radu Serban @ LLNL
* -----------------------------------------------------------------
* Copyright (c) 2002, The Regents of the University of California.
* Produced at the Lawrence Livermore National Laboratory.
* All rights reserved.
* For details, see the LICENSE file.
* -----------------------------------------------------------------
* This is the header file for the IDAS band linear solver
* module, IDABAND. It interfaces between the band module and the
* integrator when a banded linear solver is appropriate.
*
* Part I contains type definitions and function prototypes for using
* IDABAND on forward problems (DAE integration and/or FSA)
*
* Part II contains type definitions and function prototypes for using
* IDABAND on adjoint (backward) problems
* -----------------------------------------------------------------
*/
#ifndef _IDASBAND_H
#define _IDASBAND_H
#ifdef __cplusplus /* wrapper to enable C++ usage */
extern "C" {
#endif
#include <idas/idas_direct.h>
#include <sundials/sundials_band.h>
/*
* -----------------------------------------------------------------
* Function : IDABand
* -----------------------------------------------------------------
* A call to the IDABand function links the main integrator
* with the IDABAND linear solver module.
*
* ida_mem is the pointer to the integrator memory returned by
* IDACreate.
*
* mupper is the upper bandwidth of the banded Jacobian matrix.
*
* mlower is the lower bandwidth of the banded Jacobian matrix.
*
* The return values of IDABand are:
* IDADLS_SUCCESS = 0 if successful
* IDADLS_LMEM_FAIL = -1 if there was a memory allocation failure
* IDADLS_ILL_INPUT = -2 if the input was illegal or NVECTOR bad.
*
* NOTE: The band linear solver assumes a serial implementation
* of the NVECTOR package. Therefore, IDABand will first
* test for a compatible N_Vector internal representation
* by checking that the N_VGetArrayPointer function exists.
* -----------------------------------------------------------------
*/
SUNDIALS_EXPORT int IDABand(void *ida_mem,
long int Neq, long int mupper, long int mlower);
/*
* -----------------------------------------------------------------
* Function: IDABandB
* -----------------------------------------------------------------
* IDABandB links the main IDAS integrator with the IDABAND
* linear solver for the backward integration.
* -----------------------------------------------------------------
*/
SUNDIALS_EXPORT int IDABandB(void *idaadj_mem, int which,
long int NeqB, long int mupperB, long int mlowerB);
#ifdef __cplusplus
}
#endif
#endif
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