Scheme tags (SSPRK2, SSPRK3, UserTimeIntegrator), TimeTreatment enum and per-block time policies: template TimePolicy<Method, Treatment, Substeps, Stride>, its traits (TimePolicyTraits) and the aliases ExplicitTime / ImplicitTime / IMEXTime / PrescribedTime. More...

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Classes
struct	pops::SSPRK2

struct	pops::SSPRK3

struct	pops::UserTimeIntegrator

struct	pops::TimePolicy< MethodT, TreatmentT, SubstepsT, StrideT >

struct	pops::TimePolicyTraits< T >

struct	pops::TimePolicyTraits< TimePolicy< MethodT, TreatmentT, SubstepsT, StrideT > >

Namespaces
namespace	pops

Typedefs
template<class MethodT = SSPRK2, int SubstepsT = 1, int StrideT = 1>
using	pops::ExplicitTime = TimePolicy< MethodT, TimeTreatment::Explicit, SubstepsT, StrideT >

template<class MethodT = UserTimeIntegrator, int SubstepsT = 1, int StrideT = 1>
using	pops::ImplicitTime = TimePolicy< MethodT, TimeTreatment::Implicit, SubstepsT, StrideT >

template<class MethodT = UserTimeIntegrator, int SubstepsT = 1, int StrideT = 1>
using	pops::IMEXTime = TimePolicy< MethodT, TimeTreatment::IMEX, SubstepsT, StrideT >

using	pops::PrescribedTime = TimePolicy< UserTimeIntegrator, TimeTreatment::Prescribed, 1, 1 >

Enumerations
enum class	pops::TimeTreatment { pops::Explicit , pops::Implicit , pops::IMEX , pops::Prescribed }

Detailed Description

Scheme tags (SSPRK2, SSPRK3, UserTimeIntegrator), TimeTreatment enum and per-block time policies: template TimePolicy<Method, Treatment, Substeps, Stride>, its traits (TimePolicyTraits) and the aliases ExplicitTime / ImplicitTime / IMEXTime / PrescribedTime.

Layer: include/pops/numerics/time. Role: separate TWO levels – the mathematical scheme (SSPRK, IMEX, user implicit) and the usage policy in a coupled system (explicit/implicit, substeps, cadence, or prescribed field). The core keeps the generic schemes and the scheduler; cases choose a policy per block without changing the local PhysicalModel.

Invariants:

SubstepsT >= 1 and StrideT >= 1 (static_assert);
SubstepsT = MORE FREQUENT substeps (n steps of dt/n); StrideT = SLOWER cadence (advances 1 macro-step every StrideT, thus by a step of StrideT*dt). Both are ORTHOGONAL;
StrideT=1 (default) = historical behavior; the default TimePolicyTraits treats any type as Explicit, substeps=1, stride=1.

include/pops/numerics/time/integrators/time_integrator.hpp File Reference¶

Classes

Namespaces

Typedefs

Enumerations

Detailed Description