Hyperbolic-elliptic temporal coupling policies (compile-time tag types). More...

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Classes
struct	pops::PerStageCoupling
	Tag: solves the elliptic problem at EVERY RK stage (aux follows the intermediate state, more precise). More...

struct	pops::OncePerStepCoupling
	Tag: solves the elliptic problem ONCE per step (aux frozen during the stages, cheaper). More...

Namespaces
namespace	pops

Detailed Description

Hyperbolic-elliptic temporal coupling policies (compile-time tag types).

How often the elliptic problem is solved within a time step. Tag types chosen by template at the call site (Coupler::advance<Limiter, Policy>), NO runtime branch. PerStageCoupling: phi (thus aux = grad phi) recomputed at EVERY RK stage -> most precise coupling, one elliptic solve per stage. OncePerStepCoupling: phi solved only ONCE (start of step), aux frozen during the stages -> cheaper, de facto splitting. (AMR sub-cycling and tile <-> FFT band redistribution are policies of the same family, carried by AmrCoupler / SpectralCoupler.)

include/pops/coupling/base/coupling_policy.hpp File Reference¶

Classes

Namespaces

Detailed Description