template class xf::hpc::rtm::RTM2D¶

#include "rtm2d.hpp"

Overview¶

RTM2D class defines the basic operations for 2D RTM2D .

Parameters:

t_DataType	the basic wavefield datatype
t_Order	the spatial discretization order
t_MaxDim	the maximum height this kernel can process
t_PE	the number of processing elements

template <
    typename t_DataType,
    int t_Order,
    int t_MaxDim = 1024,
    int t_MaxB = 40,
    int t_PE = t_Order / 2
    >
class RTM2D: public xf::hpc::rtm::Stencil2D

// typedefs

typedef Stencil2D <t_DataType, t_Order, t_MaxDim, t_PE>::t_PairType t_PairType
typedef Stencil2D <t_DataType, t_Order, t_MaxDim, t_PE>::t_WideType t_WideType
typedef t_WideType::t_TypeInt t_InType
typedef t_PairType::t_TypeInt t_PairInType
typedef blas::WideType <t_InType, t_HalfOrder/t_PE> t_UpbType
typedef t_UpbType::t_TypeInt t_UpbInType

Inherited Members¶

// typedefs

typedef blas::WideType <t_DataType, t_PE> t_WideType
typedef t_WideType::t_TypeInt t_InType
typedef blas::WideType <t_InType, t_NumData, t_WideType::t_TypeWidth> t_PairType
typedef t_PairType::t_TypeInt t_PairInType

// fields

static const unsigned int t_NumData
static const unsigned int t_HalfOrder
static const unsigned int t_FifoDepth

Methods¶

forward¶

void forward (
    const t_DataType p_src,
    hls::stream <t_UpbInType>& p_upb,
    hls::stream <t_InType>& p_v2dt2,
    hls::stream <t_InType>& p_vt,
    hls::stream <t_PairInType>& p_p0,
    hls::stream <t_PairInType>& p_p1
    )

forward defines the forward streaming module

Parameters:

p_src	is the source wavefield at given time stamp
p_upb	is the upper boundary to be saved
p_v2dt2	is the pow(v * dt, 2)
p_vt	is a copy of p_v2dt2
p_p0	is the stream of input wavefield p(t-1) and p(t)
p_p1	is the stream of output wavefield p(t) and p(t+1)

backwardF¶

void backwardF (
    hls::stream <t_UpbInType>& p_upb,
    hls::stream <t_InType>& p_v2dt2,
    hls::stream <t_InType>& p_vt,
    hls::stream <t_PairInType>& p_p0,
    hls::stream <t_PairInType>& p_p1,
    hls::stream <t_InType>& p_p,
    bool p_t = false
    )

backwardF defines the backward streaming module for source wavefield

Parameters:

p_upb	the stream of upper boundary to be restored
p_v2dt2	the pow(v * dt, 2)
p_vt	a copy of p_v2dt2
p_p0	the stream of input wavefield p(t+1) and p(t)
p_p1	the stream of output wavefield p(t) and p(t-1)
p_p	the stream of wavefield p(t-1) for cross-correlation
p_t	switch to swap p(t) and p(t-1) memory

backwardR¶

void backwardR (
    hls::stream <t_DataType>& p_rec,
    hls::stream <t_InType>& p_v2dt2,
    hls::stream <t_InType>& p_vt,
    hls::stream <t_PairInType>& p_r0,
    hls::stream <t_PairInType>& p_r1,
    hls::stream <t_InType>& p_r
    )

backwardR defines the backward streaming module for receiver wavefield

Parameters:

p_rec	the stream of the data from receivers
p_v2dt2	the pow(v * dt, 2)
p_vt	a copy of p_v2dt2
p_r0	the stream of input wavefield r(t+1) and r(t)
p_r1	the stream of output wavefield r(t) and r(t-1)
p_r	the stream of wavefield r(t-1) for cross-correlation

crossCorrelation¶

void crossCorrelation (
    hls::stream <t_InType>& p_p,
    hls::stream <t_InType>& p_r,
    hls::stream <t_InType>& p_imgIn,
    hls::stream <t_InType>& p_imgOut
    )

crossCorrelation constructs the detecting area images

Parameters:

p_p	the stream of wavefield p(t) for cross-correlation
p_r	the stream of wavefield r(t) for cross-correlation
p_imgIn	the stream of input image
p_imgOut	the stream of output image