/usr/include/ida/ida_klu.h is in libsundials-dev 2.7.0+dfsg-2build1.
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* -----------------------------------------------------------------
* $Revision: 4558 $
* $Date: 2015-10-05 09:04:16 -0700 (Mon, 05 Oct 2015) $
* -----------------------------------------------------------------
* Programmer(s): Carol S. Woodward @ LLNL
* -----------------------------------------------------------------
* LLNS Copyright Start
* Copyright (c) 2014, Lawrence Livermore National Security
* This work was performed under the auspices of the U.S. Department
* of Energy by Lawrence Livermore National Laboratory in part under
* Contract W-7405-Eng-48 and in part under Contract DE-AC52-07NA27344.
* Produced at the Lawrence Livermore National Laboratory.
* All rights reserved.
* For details, see the LICENSE file.
* LLNS Copyright End
* -----------------------------------------------------------------
* This is the header file for the IDAKLU linear solver module.
* -----------------------------------------------------------------
*/
#ifndef _IDAKLU_H
#define _IDAKLU_H
#include "ida/ida_sparse.h"
#include "sundials/sundials_sparse.h"
#ifdef __cplusplus /* wrapper to enable C++ usage */
extern "C" {
#endif
/*
* -----------------------------------------------------------------
* Function : IDAKLU
* -----------------------------------------------------------------
* A call to the IDAKLU function links the main integrator
* with the IDAKLU linear solver module.
*
* ida_mem is the pointer to integrator memory returned by
* IDACreate.
*
*
* IDAKLU returns:
* IDASLU_SUCCESS = 0 if successful
* IDASLU_LMEM_FAIL = -1 if there was a memory allocation failure
* IDASLU_ILL_INPUT = -2 if NVECTOR found incompatible
*
* NOTE: The KLU linear solver assumes a serial implementation
* of the NVECTOR package. Therefore, IDAKLU will first
* test for a compatible N_Vector internal representation
* by checking that the functions N_VGetArrayPointer and
* N_VSetArrayPointer exist.
* -----------------------------------------------------------------
*/
SUNDIALS_EXPORT int IDAKLU(void *ida_mem, int n, int nnz, int sparesetype);
/*
* -----------------------------------------------------------------
* IDAKLUReInit
* -----------------------------------------------------------------
* This routine reinitializes memory and flags for a new factorization
* (symbolic and numeric) to be conducted at the next solver setup
* call. This routine is useful in the cases where the number of nonzeroes
* has changed or if the structure of the linear system has changed
* which would require a new symbolic (and numeric factorization).
*
* The reinit_type argumenmt governs the level of reinitialization:
*
* reinit_type = 1: The Jacobian matrix will be destroyed and
* a new one will be allocated based on the nnz
* value passed to this call. New symbolic and
* numeric factorizations will be completed at the next
* solver setup.
*
* reinit_type = 2: Only symbolic and numeric factorizations will be
* completed. It is assumed that the Jacobian size
* has not exceeded the size of nnz given in the prior
* call to IDAKLU.
*
* This routine assumes no other changes to solver use are necessary.
*
* The return value is IDASLS_SUCCESS = 0, IDASLS_MEM_NULL = -1,
* IDASLS_LMEM_NULL = -2, IDASLS_ILL_INPUT = -3, or IDASLS_MEM_FAIL = -4.
*
* -----------------------------------------------------------------
*/
SUNDIALS_EXPORT int IDAKLUReInit(void *ida_mem_v, int n, int nnz,
int reinit_type);
/*
* -----------------------------------------------------------------
* Function: IDAKLUB
* -----------------------------------------------------------------
* IDAKLUB links the main IDAS integrator with the IDAKLU
* linear solver for the backward integration.
* -----------------------------------------------------------------
*/
SUNDIALS_EXPORT int IDAKLUB(void *ida_mem, int which, int nB, int nnzB);
/*
* -----------------------------------------------------------------
* Optional Input Specification Functions
* -----------------------------------------------------------------
*
* IDAKLUSetOrdering sets the ordering used by KLU for reducing fill.
* Options are: 0 for AMD, 1 for COLAMD, and 2 for the natural ordering.
* The default used in IDA is 1 for COLAMD.
* -----------------------------------------------------------------
*/
SUNDIALS_EXPORT int IDAKLUSetOrdering(void *ida_mem, int ordering_choice);
#ifdef __cplusplus
}
#endif
#endif
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