rkc_cu Namespace Reference

Classes
struct	solver_memory
	Memory required for Radau-IIa GPU solver. More...

Functions
__device__ Real	rkc_spec_rad (const Real t, const Real pr, const Real hmax, const Real *y, const Real *F, Real *v, Real *Fv, mechanism_memory const *const __restrict__ mech)
__device__ void	rkc_step (const Real t, const Real pr, const Real h, const Real *y_0, const Real *F_0, const int s, Real *y_j, Real *y_jm1, Real *y_jm2, mechanism_memory const *const __restrict__ mech)
__device__ void	integrate (const Real tstart, const Real tEnd, const Real pr, Real *y, mechanism_memory const *const __restrict__ mech, solver_memory const *const __restrict__ solver)

Function Documentation

integrate()

__device__ void rkc_cu::integrate	(	const Real	tstart,
		const Real	tEnd,
		const Real	pr,
		Real *	y,
		mechanism_memory const *const __restrict__	mech,
		solver_memory const *const __restrict__	solver
	)

Driver function for RKC integrator.

Parameters

t	the starting time.
tEnd	the desired end time.
pr	A parameter used for pressure or density to pass to the derivative function.
y	Dependent variable array, integrated values replace initial conditions.
mech	The mechanism_memory struct that contains the pre-allocated memory for the RHS \ Jacobian evaluation
solver	The solver_memory struct that contains the pre-allocated memory for the solver

Definition at line 192 of file rkc.cu.

rkc_spec_rad()

__device__ Real rkc_cu::rkc_spec_rad	(	const Real	t,
		const Real	pr,
		const Real	hmax,
		const Real *	y,
		const Real *	F,
		Real *	v,
		Real *	Fv,
		mechanism_memory const *const __restrict__	mech
	)

Function to estimate spectral radius.

Parameters

t	the time.
pr	A parameter used for pressure or density to pass to the derivative function.
hmax	Max time step size.
y	Array of dependent variable.
F	Derivative evaluated at current state
v
Fv

Definition at line 13 of file rkc.cu.

rkc_step()

__device__ void rkc_cu::rkc_step	(	const Real	t,
		const Real	pr,
		const Real	h,
		const Real *	y_0,
		const Real *	F_0,
		const int	s,
		Real *	y_j,
		Real *	y_jm1,
		Real *	y_jm2,
		mechanism_memory const *const __restrict__	mech
	)

Function to take a single RKC integration step

Parameters

t	the starting time.
pr	A parameter used for pressure or density to pass to the derivative function.
h	Time-step size.
y_0	Initial conditions.
F_0	Derivative function at initial conditions.
s	number of steps.
y_j	Integrated variables.

Definition at line 104 of file rkc.cu.