int IDABBDSpbcg(void *ida_mem, int maxl, void *bbd_data)
{
IDAMem IDA_mem;
int flag;
flag = IDASpbcg(ida_mem, maxl);
if(flag != IDASPILS_SUCCESS) return(flag);
IDA_mem = (IDAMem) ida_mem;
if (bbd_data == NULL) {
IDAProcessError(IDA_mem, IDABBDPRE_PDATA_NULL, "IDABBDPRE", "IDABBDSpbcg", MSGBBD_PDATA_NULL);
return(IDABBDPRE_PDATA_NULL);
}
flag = IDASpilsSetPreconditioner(ida_mem, IDABBDPrecSetup, IDABBDPrecSolve, bbd_data);
if(flag != IDASPILS_SUCCESS) return(flag);
return(IDASPILS_SUCCESS);
}
void FIDA_SPBCG(int *maxl, realtype *eplifac, realtype *dqincfac, int *ier)
{
*ier = 0;
*ier = IDASpbcg(IDA_idamem, *maxl);
if (*ier != IDASPILS_SUCCESS) return;
if (*eplifac != ZERO) {
*ier = IDASpilsSetEpsLin(IDA_idamem, *eplifac);
if (*ier != IDASPILS_SUCCESS) return;
}
if (*dqincfac != ZERO) {
*ier = IDASpilsSetIncrementFactor(IDA_idamem, *dqincfac);
if (*ier != IDASPILS_SUCCESS) return;
}
IDA_ls = IDA_LS_SPBCG;
return;
}
int IDASpbcgB(void *ida_mem, int which, int maxlB)
{
IDAMem IDA_mem;
IDAadjMem IDAADJ_mem;
IDABMem IDAB_mem;
IDASpilsMemB idaspilsB_mem;
void *ida_memB;
int flag;
/* Check if ida_mem is allright. */
if (ida_mem == NULL) {
IDAProcessError(NULL, IDASPILS_MEM_NULL, "IDASPBCG", "IDASpbcgB", MSGS_IDAMEM_NULL);
return(IDASPILS_MEM_NULL);
}
IDA_mem = (IDAMem) ida_mem;
/* Is ASA initialized? */
if (IDA_mem->ida_adjMallocDone == FALSE) {
IDAProcessError(IDA_mem, IDASPILS_NO_ADJ, "IDASPBCG", "IDASpbcgB", MSGS_NO_ADJ);
return(IDASPILS_NO_ADJ);
}
IDAADJ_mem = IDA_mem->ida_adj_mem;
/* Check the value of which */
if ( which >= IDAADJ_mem->ia_nbckpbs ) {
IDAProcessError(IDA_mem, IDASPILS_ILL_INPUT, "IDASPBCG", "IDASpbcgB", MSGS_BAD_WHICH);
return(IDASPILS_ILL_INPUT);
}
/* Find the IDABMem entry in the linked list corresponding to 'which'. */
IDAB_mem = IDAADJ_mem->IDAB_mem;
while (IDAB_mem != NULL) {
if( which == IDAB_mem->ida_index ) break;
/* advance */
IDAB_mem = IDAB_mem->ida_next;
}
/* ida_mem corresponding to 'which' problem. */
ida_memB = (void *) IDAB_mem->IDA_mem;
/* Get memory for IDASpilsMemRecB */
idaspilsB_mem = NULL;
idaspilsB_mem = (IDASpilsMemB) malloc(sizeof(struct IDASpilsMemRecB));
if (idaspilsB_mem == NULL) {
IDAProcessError(IDA_mem, IDASPILS_MEM_FAIL, "IDASPBCG", "IDASpbcgB", MSGS_MEM_FAIL);
return(IDASPILS_MEM_FAIL);
}
idaspilsB_mem->s_psetB = NULL;
idaspilsB_mem->s_psolveB = NULL;
idaspilsB_mem->s_P_dataB = NULL;
/* initialize Jacobian function */
idaspilsB_mem->s_jtimesB = NULL;
/* attach lmem and lfree */
IDAB_mem->ida_lmem = idaspilsB_mem;
IDAB_mem->ida_lfree = IDASpbcgFreeB;
flag = IDASpbcg(IDAB_mem->IDA_mem, maxlB);
if (flag != IDASPILS_SUCCESS) {
free(idaspilsB_mem);
idaspilsB_mem = NULL;
}
return(flag);
}
CAMLprim value sundials_ml_ida_spbcg(value ida_solver, value maxl) {
CAMLparam2(ida_solver, maxl);
const int ret = IDASpbcg(IDA_MEM(ida_solver), Int_val(maxl));
CAMLreturn(Val_int(ret));
}
void SundialsIda::initialize()
{
sundialsMem = IDACreate();
if (check_flag((void *)sundialsMem, "IDACreate", 0)) {
throw DebugException("SundialsIda::initialize: error in IDACreate");
}
IDASetUserData(sundialsMem, theDAE);
int flag;
if (calcIC) {
// Pick an appropriate initial condition for ydot and algebraic components of y
flag = IDASetId(sundialsMem, componentId.forSundials());
}
flag = IDAInit(sundialsMem, f, t0, y.forSundials(), ydot.forSundials());
if (check_flag(&flag, "IDAMalloc", 1)) {
throw DebugException("SundialsIda::initialize: error in IDAInit");
}
IDASVtolerances(sundialsMem, reltol, abstol.forSundials());
if (findRoots) {
rootsFound.resize(nRoots);
// Call IDARootInit to specify the root function g with nRoots components
flag = IDARootInit(sundialsMem, nRoots, g);
if (check_flag(&flag, "IDARootInit", 1)) {
throw DebugException("SundialsIda::initialize: error in IDARootInit");
}
}
// Call IDASpbcg to specify the IDASpbcg dense linear solver
flag = IDASpbcg(sundialsMem, 0);
if (check_flag(&flag, "IDASpbcg", 1)) {
throw DebugException("SundialsIda::initialize: error in IDASpbcg");
}
if (imposeConstraints) {
flag = IDASetConstraints(sundialsMem, constraints.forSundials());
if (check_flag(&flag, "IDASetConstraints", 1)) {
throw DebugException("SundialsIda::initialize: error in IDASetConstraints");
}
}
// this seems to work better using the default J-v function rather than specifying our own...
//flag = IDASpilsSetJacTimesVecFn(sundialsMem, JvProd, theDAE);
//if (check_flag(&flag, "IDASpilsSetJacTimesVecFn", 1)) {
// throw myException("SundialsIda::initialize: error in IDASpilsSetJacTimesVecFn");
//}
flag = IDASpilsSetPreconditioner(sundialsMem, preconditionerSetup, preconditionerSolve);
if (check_flag(&flag, "IDASpilsSetPreconditioner", 1)) {
throw DebugException("SundialsIda::initialize: error in IDASpilsSetPreconditioner");
}
if (calcIC) {
flag = IDACalcIC(sundialsMem, IDA_YA_YDP_INIT, t0+1e-4);
if (check_flag(&flag, "IDACalcIC", 1)) {
logFile.write("IDACalcIC Error");
throw DebugException("SundialsIda::initialize: error in IDACalcIC");
}
flag = IDAGetConsistentIC(sundialsMem, y0.forSundials(), ydot0.forSundials());
if (check_flag(&flag, "IDAGetConsistentIC", 1)) {
throw DebugException("SundialsIda::initialize: error in IDAGetConsistentIC");
}
}
}