ERF
Energy Research and Forecasting: An Atmospheric Modeling Code
Public Member Functions | Private Attributes | Static Private Attributes | List of all members
CENTERED4 Struct Reference

#include <ERF_Interpolation_UPW.H>

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Public Member Functions

 CENTERED4 (const amrex::Array4< const amrex::Real > &phi)
 
AMREX_GPU_DEVICE AMREX_FORCE_INLINE void InterpolateInX (const int &i, const int &j, const int &k, const int &qty_index, amrex::Real &val_lo, amrex::Real, const amrex::Real) const
 
AMREX_GPU_DEVICE AMREX_FORCE_INLINE void InterpolateInY (const int &i, const int &j, const int &k, const int &qty_index, amrex::Real &val_lo, amrex::Real, const amrex::Real) const
 
AMREX_GPU_DEVICE AMREX_FORCE_INLINE void InterpolateInZ (const int &i, const int &j, const int &k, const int &qty_index, amrex::Real &val_lo, amrex::Real, const amrex::Real) const
 
AMREX_GPU_DEVICE AMREX_FORCE_INLINE amrex::Real Evaluate (const amrex::Real &sp1, const amrex::Real &s, const amrex::Real &sm1, const amrex::Real &sm2) const
 

Private Attributes

amrex::Array4< const amrex::Real > m_phi
 

Static Private Attributes

static constexpr amrex::Real g1 =(7.0/12.0)
 
static constexpr amrex::Real g2 =(1.0/12.0)
 

Detailed Description

Interpolation operators used for 4th order centered scheme

Constructor & Destructor Documentation

◆ CENTERED4()

CENTERED4::CENTERED4 ( const amrex::Array4< const amrex::Real > &  phi)
inline
210  : m_phi(phi) {}
CENTERED4::m_phi
amrex::Array4< const amrex::Real > m_phi
Definition: ERF_Interpolation_UPW.H:292

Member Function Documentation

◆ Evaluate()

AMREX_GPU_DEVICE AMREX_FORCE_INLINE amrex::Real CENTERED4::Evaluate ( const amrex::Real &  sp1,
const amrex::Real &  s,
const amrex::Real &  sm1,
const amrex::Real &  sm2 
) const
inline
282  {
283  // Averages and diffs
284  amrex::Real a1 = (s + sm1);
285  amrex::Real a2 = (sp1 + sm2);
286 
287  // Interpolated value
288  return ( g1*a1 - g2*a2 );
289  }
CENTERED4::g1
static constexpr amrex::Real g1
Definition: ERF_Interpolation_UPW.H:293
CENTERED4::g2
static constexpr amrex::Real g2
Definition: ERF_Interpolation_UPW.H:294

Referenced by InterpolateInX(), InterpolateInY(), and InterpolateInZ().

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◆ InterpolateInX()

AMREX_GPU_DEVICE AMREX_FORCE_INLINE void CENTERED4::InterpolateInX ( const int &  i,
const int &  j,
const int &  k,
const int &  qty_index,
amrex::Real &  val_lo,
amrex::Real  ,
const amrex::Real   
) const
inline
222  {
223  // Data to interpolate on
224  amrex::Real sp1 = m_phi(i+1, j , k , qty_index);
225  amrex::Real s = m_phi(i , j , k , qty_index);
226  amrex::Real sm1 = m_phi(i-1, j , k , qty_index);
227  amrex::Real sm2 = m_phi(i-2, j , k , qty_index);
228 
229  // Interpolate lo
230  val_lo = Evaluate(sp1,s,sm1,sm2);
231  }
CENTERED4::Evaluate
AMREX_GPU_DEVICE AMREX_FORCE_INLINE amrex::Real Evaluate(const amrex::Real &sp1, const amrex::Real &s, const amrex::Real &sm1, const amrex::Real &sm2) const
Definition: ERF_Interpolation_UPW.H:278
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◆ InterpolateInY()

AMREX_GPU_DEVICE AMREX_FORCE_INLINE void CENTERED4::InterpolateInY ( const int &  i,
const int &  j,
const int &  k,
const int &  qty_index,
amrex::Real &  val_lo,
amrex::Real  ,
const amrex::Real   
) const
inline
243  {
244  // Data to interpolate on
245  amrex::Real sp1 = m_phi(i , j+1, k , qty_index);
246  amrex::Real s = m_phi(i , j , k , qty_index);
247  amrex::Real sm1 = m_phi(i , j-1, k , qty_index);
248  amrex::Real sm2 = m_phi(i , j-2, k , qty_index);
249 
250  // Interpolate lo
251  val_lo = Evaluate(sp1,s,sm1,sm2);
252  }
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◆ InterpolateInZ()

AMREX_GPU_DEVICE AMREX_FORCE_INLINE void CENTERED4::InterpolateInZ ( const int &  i,
const int &  j,
const int &  k,
const int &  qty_index,
amrex::Real &  val_lo,
amrex::Real  ,
const amrex::Real   
) const
inline
264  {
265  // Data to interpolate on
266  amrex::Real sp1 = m_phi(i , j , k+1, qty_index);
267  amrex::Real s = m_phi(i , j , k , qty_index);
268  amrex::Real sm1 = m_phi(i , j , k-1, qty_index);
269  amrex::Real sm2 = m_phi(i , j , k-2, qty_index);
270 
271  // Interpolate lo
272  val_lo = Evaluate(sp1,s,sm1,sm2);
273  }
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Member Data Documentation

◆ g1

constexpr amrex::Real CENTERED4::g1 =(7.0/12.0)
staticconstexprprivate

Referenced by Evaluate().

◆ g2

constexpr amrex::Real CENTERED4::g2 =(1.0/12.0)
staticconstexprprivate

Referenced by Evaluate().

◆ m_phi

amrex::Array4<const amrex::Real> CENTERED4::m_phi
private

Referenced by InterpolateInX(), InterpolateInY(), and InterpolateInZ().

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