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stapl::skeletons::skeletons_impl::stencil_2d_pd< Op > Class Template Reference

In a 2D stencil, parametric dependencies are defined in such a way that each node depends on every 9 node in its surroundings including itself from the previous timestep. More...

Public Member Functions

 stencil_2d_pd (Op op)
 
template<typename Coord , typename Visitor , typename In >
void case_of (Coord const &skeleton_size, Coord const &coord, Visitor &visitor, In &&in_flow) const
 If coord is <i, h, ...> it wraps the WF with the following inputs and sends it to the visitor along with the m_wf. More...
 
template<typename Size , typename Coord , typename FlowIndex >
std::size_t consumer_count (Size const &skeleton_size, Coord const &, FlowIndex const &) const
 determines how many of the instances of this parametric dependency will be consuming from a producer with a given coordinate. This is a reverse query as compared to case_of. More...
 
Op get_op () const
 
template<typename Coord >
int get_result_id (Coord const &, Coord const &) const
 
template<typename Coord , typename Span >
void configure (Coord &&, Span &&)
 

Public Types

using op_type = Op
 

Static Public Attributes

static constexpr std::size_t in_port_size = 1
 
static constexpr std::size_t op_arity = 1
 

Detailed Description

template<typename Op>
class stapl::skeletons::skeletons_impl::stencil_2d_pd< Op >

In a 2D stencil, parametric dependencies are defined in such a way that each node depends on every 9 node in its surroundings including itself from the previous timestep.

Template Parameters
Opthe operation to be applied at each point on the 9 points received.

Member Function Documentation

◆ case_of()

template<typename Op >
template<typename Coord , typename Visitor , typename In >
void stapl::skeletons::skeletons_impl::stencil_2d_pd< Op >::case_of ( Coord const &  skeleton_size,
Coord const &  coord,
Visitor &  visitor,
In &&  in_flow 
) const

If coord is <i, h, ...> it wraps the WF with the following inputs and sends it to the visitor along with the m_wf.

  • in<0>[0, ..., n]
Parameters
skeleton_size<n, m, p, ...> where each element is potentially multi-dimensional.
coord<i, j, k, ...> where i < n, j < m, k < p
visitorthe information about WF and input is passed so that later this information can be converted to a node in the dependence graph
in_flowa tuple of input flows to consume from

◆ consumer_count()

template<typename Op >
template<typename Size , typename Coord , typename FlowIndex >
std::size_t stapl::skeletons::skeletons_impl::stencil_2d_pd< Op >::consumer_count ( Size const &  skeleton_size,
Coord const &  ,
FlowIndex const &   
) const

determines how many of the instances of this parametric dependency will be consuming from a producer with a given coordinate. This is a reverse query as compared to case_of.

Parameters
skeleton_sizethe size of this skeleton
producer_coordthe coordinate of the producer element which is providing data to this parametric dependency
Template Parameters
FlowIndexthe flow index on which this request is sent

The documentation for this class was generated from the following file: