Exemple #1
0
void FCV_LAPACKBAND(int *neq, int *mupper, int *mlower, int *ier)
{
  /* 
     neq        is the problem size
     mupper     is the upper bandwidth
     mlower     is the lower bandwidth 
  */

  *ier = CVLapackBand(CV_cvodemem, *neq, *mupper, *mlower);

  CV_ls = CV_LS_LAPACKBAND;
}
void CVodesIntegrator::applyOptions()
{
    if (m_type == DENSE + NOJAC) {
        sd_size_t N = static_cast<sd_size_t>(m_neq);
        #if SUNDIALS_USE_LAPACK
            CVLapackDense(m_cvode_mem, N);
        #else
            CVDense(m_cvode_mem, N);
        #endif
    } else if (m_type == DIAG) {
        CVDiag(m_cvode_mem);
    } else if (m_type == GMRES) {
        CVSpgmr(m_cvode_mem, PREC_NONE, 0);
    } else if (m_type == BAND + NOJAC) {
        sd_size_t N = static_cast<sd_size_t>(m_neq);
        long int nu = m_mupper;
        long int nl = m_mlower;
        #if SUNDIALS_USE_LAPACK
            CVLapackBand(m_cvode_mem, N, nu, nl);
        #else
            CVBand(m_cvode_mem, N, nu, nl);
        #endif
    } else {
        throw CanteraError("CVodesIntegrator::applyOptions",
                           "unsupported option");
    }

    if (m_maxord > 0) {
        CVodeSetMaxOrd(m_cvode_mem, m_maxord);
    }
    if (m_maxsteps > 0) {
        CVodeSetMaxNumSteps(m_cvode_mem, m_maxsteps);
    }
    if (m_hmax > 0) {
        CVodeSetMaxStep(m_cvode_mem, m_hmax);
    }
    if (m_hmin > 0) {
        CVodeSetMinStep(m_cvode_mem, m_hmin);
    }
    if (m_maxErrTestFails > 0) {
        CVodeSetMaxErrTestFails(m_cvode_mem, m_maxErrTestFails);
    }
}
int main(void)
{
  realtype dx, dy, reltol, abstol, t, tout, umax;
  N_Vector u;
  UserData data;
  void *cvode_mem;
  int iout, flag;
  long int nst;

  u = NULL;
  data = NULL;
  cvode_mem = NULL;

  /* Create a serial vector */

  u = N_VNew_Serial(NEQ);  /* Allocate u vector */
  if(check_flag((void*)u, "N_VNew_Serial", 0)) return(1);

  reltol = ZERO;  /* Set the tolerances */
  abstol = ATOL;

  data = (UserData) malloc(sizeof *data);  /* Allocate data memory */
  if(check_flag((void *)data, "malloc", 2)) return(1);
  dx = data->dx = XMAX/(MX+1);  /* Set grid coefficients in data */
  dy = data->dy = YMAX/(MY+1);
  data->hdcoef = ONE/(dx*dx);
  data->hacoef = HALF/(TWO*dx);
  data->vdcoef = ONE/(dy*dy);

  SetIC(u, data);  /* Initialize u vector */

  /* Call CVodeCreate to create the solver memory and specify the 
   * Backward Differentiation Formula and the use of a Newton iteration */
  cvode_mem = CVodeCreate(CV_BDF, CV_NEWTON);
  if(check_flag((void *)cvode_mem, "CVodeCreate", 0)) return(1);

  /* Call CVodeInit to initialize the integrator memory and specify the
   * user's right hand side function in u'=f(t,u), the inital time T0, and
   * the initial dependent variable vector u. */
  flag = CVodeInit(cvode_mem, f, T0, u);
  if(check_flag(&flag, "CVodeInit", 1)) return(1);

  /* Call CVodeSStolerances to specify the scalar relative tolerance
   * and scalar absolute tolerance */
  flag = CVodeSStolerances(cvode_mem, reltol, abstol);
  if (check_flag(&flag, "CVodeSStolerances", 1)) return(1);

  /* Set the pointer to user-defined data */
  flag = CVodeSetUserData(cvode_mem, data);
  if(check_flag(&flag, "CVodeSetUserData", 1)) return(1);

  /* Call CVLapackBand to specify the CVBAND band linear solver */
  flag = CVLapackBand(cvode_mem, NEQ, MY, MY);
  if(check_flag(&flag, "CVLapackBand", 1)) return(1);

  /* Set the user-supplied Jacobian routine Jac */
  flag = CVDlsSetBandJacFn(cvode_mem, Jac);
  if(check_flag(&flag, "CVDlsSetBandJacFn", 1)) return(1);

  /* In loop over output points: call CVode, print results, test for errors */
  umax = N_VMaxNorm(u);
  PrintHeader(reltol, abstol, umax);
  for(iout=1, tout=T1; iout <= NOUT; iout++, tout += DTOUT) {
    flag = CVode(cvode_mem, tout, u, &t, CV_NORMAL);
    if(check_flag(&flag, "CVode", 1)) break;
    umax = N_VMaxNorm(u);
    flag = CVodeGetNumSteps(cvode_mem, &nst);
    check_flag(&flag, "CVodeGetNumSteps", 1);
    PrintOutput(t, umax, nst);
  }

  PrintFinalStats(cvode_mem);  /* Print some final statistics   */

  N_VDestroy_Serial(u);   /* Free the u vector */
  CVodeFree(&cvode_mem);  /* Free the integrator memory */
  free(data);             /* Free the user data */

  return(0);
}
Exemple #4
0
int CVLapackBandB(void *cvode_mem, int which,
                  int nB, int mupperB, int mlowerB)
{
  CVodeMem cv_mem;
  CVadjMem ca_mem;
  CVodeBMem cvB_mem;
  void *cvodeB_mem;
  CVDlsMemB cvdlsB_mem;
  int flag;

  /* Check if cvode_mem exists */
  if (cvode_mem == NULL) {
    cvProcessError(NULL, CVDLS_MEM_NULL, "CVSLAPACK", "CVLapackBandB", MSGD_CVMEM_NULL);
    return(CVDLS_MEM_NULL);
  }
  cv_mem = (CVodeMem) cvode_mem;

  /* Was ASA initialized? */
  if (cv_mem->cv_adjMallocDone == FALSE) {
    cvProcessError(cv_mem, CVDLS_NO_ADJ, "CVSLAPACK", "CVLapackBandB", MSGD_NO_ADJ);
    return(CVDLS_NO_ADJ);
  } 
  ca_mem = cv_mem->cv_adj_mem;

  /* Check which */
  if ( which >= ca_mem->ca_nbckpbs ) {
    cvProcessError(cv_mem, CVDLS_ILL_INPUT, "CVSLAPACK", "CVLapackBandB", MSGCV_BAD_WHICH);
    return(CVDLS_ILL_INPUT);
  }

  /* Find the CVodeBMem entry in the linked list corresponding to which */
  cvB_mem = ca_mem->cvB_mem;
  while (cvB_mem != NULL) {
    if ( which == cvB_mem->cv_index ) break;
    cvB_mem = cvB_mem->cv_next;
  }

  cvodeB_mem = (void *) (cvB_mem->cv_mem);

  /* Get memory for CVDlsMemRecB */
  cvdlsB_mem = (CVDlsMemB) malloc(sizeof(struct CVDlsMemRecB));
  if (cvdlsB_mem == NULL) {
    cvProcessError(cv_mem, CVDLS_MEM_FAIL, "CVSLAPACK", "CVLapackBandB", MSGD_MEM_FAIL);
    return(CVDLS_MEM_FAIL);
  }

  /* set matrix type */
  cvdlsB_mem->d_typeB = SUNDIALS_BAND;

  /* initialize Jacobian function */
  cvdlsB_mem->d_bjacB = NULL;

  /* attach lmemB and lfreeB */
  cvB_mem->cv_lmem = cvdlsB_mem;
  cvB_mem->cv_lfree = cvLapackBandFreeB;

  flag = CVLapackBand(cvodeB_mem, nB, mupperB, mlowerB);

  if (flag != CVDLS_SUCCESS) {
    free(cvdlsB_mem);
    cvdlsB_mem = NULL;
  }

  return(flag);
}
	void OpenSMOKE_CVODE_Sundials<T>::Solve(const double xend)
	{

		int flag;

		this->x_ = this->x0_;
		this->xend_ = xend;

		for(int i=0;i<this->n_;i++)
			NV_Ith_S(y0Sundials_,i) = this->y0_[i];

		if (firstCall_ == true)
		{
			firstCall_ = false;

			/* Call CVodeCreate to create the solver memory and specify the 
			* Backward Differentiation Formula and the use of a Newton iteration */
			cvode_mem_ = CVodeCreate(CV_BDF, CV_NEWTON);
			if (check_flag((void *)cvode_mem_, std::string("CVodeCreate"), 0)) exit(-1);

			/* Call CVodeInit to initialize the integrator memory and specify the
			* user's right hand side function in y'=f(t,y), the inital time t0, and
			* the initial dependent variable vector y0Sundials_. */
			flag = CVodeInit(cvode_mem_, this->odeSystem_->GetSystemFunctionsStatic, this->odeSystem_->GetWriteFunctionStatic, this->x0_, y0Sundials_);
			if (check_flag(&flag, std::string("CVodeInit"), 1)) exit(-1);

			/* Call CVodeSVtolerances to specify the scalar relative tolerance
			* and vector absolute tolerances */
			flag = CVodeSStolerances(cvode_mem_, this->relTolerance_[0], this->absTolerance_[0]);
			if (check_flag(&flag, std::string("CVodeSVtolerances"), 1)) exit(-1);

			/* Call Solver */
			if (this->iUseLapack_ == false)
			{
				if (this->mUpper_ == 0 && this->mLower_ == 0)
				{
//					std::cout << "CVODE Solver: Dense Jacobian (without Lapack)..." << std::endl;
					flag = CVDense(cvode_mem_, this->n_);
					if (check_flag(&flag, std::string("CVDense"), 1)) exit(-1);
				}
				else
				{
//					std::cout << "CVODE Solver: Band Jacobian (without Lapack)..." << std::endl;
					flag = CVBand(cvode_mem_, this->n_, this->mUpper_, this->mLower_);
					if (check_flag(&flag, std::string("CVBand"), 1)) exit(-1);
				}
			}
			else
			{
				if (this->mUpper_ == 0 && this->mLower_ == 0)
				{
//					std::cout << "CVODE Solver: Dense Jacobian (with Lapack)..." << std::endl;
					flag = CVLapackDense(cvode_mem_, this->n_);
					if (check_flag(&flag, std::string("CVLapackDense"), 1)) exit(-1);
				}
				else
				{
//					std::cout << "CVODE Solver: Band Jacobian (with Lapack)..." << std::endl;
					flag = CVLapackBand(cvode_mem_, this->n_, this->mUpper_, this->mLower_);
					if (check_flag(&flag, std::string("CVLapackBand"), 1)) exit(-1);
				}
			}
		}
		else
		{
			flag = CVodeReInit(cvode_mem_, this->x0_, y0Sundials_);
			if (check_flag(&flag, std::string("CVodeReInit"), 1)) exit(-1);
		}

		AnalyzeUserOptions();

		/* Solving */
		this->tStart_ =  this->GetClockTime();
		flag = CVode(cvode_mem_, this->xend_, ySundials_, &this->x_, CV_NORMAL);
		this->tEnd_ =  this->GetClockTime();

		this->x0_ = this->x_;
		for(int i=0;i<this->n_;i++)
			NV_Ith_S(y0Sundials_,i) = NV_Ith_S(ySundials_,i);
		for(int i=0;i<this->n_;i++)
			this->y_[i] = NV_Ith_S(ySundials_,i);
	}