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AMReX_MFInterp_C.H
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AMReX_MFInterp_C.H
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#ifndef AMREX_MF_INTERP_C_H_
#define AMREX_MF_INTERP_C_H_
#include <AMReX_Config.H>
#include <AMReX_Array4.H>
#include <AMReX_BCRec.H>
namespace amrex {
namespace {
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE
Real mf_compute_slopes_x (int i, int j, int k, Array4<Real const> const& u, int nu,
Box const& domain, BCRec const& bc)
{
Real dc = Real(0.5) * (u(i+1,j,k,nu) - u(i-1,j,k,nu));
if (i == domain.smallEnd(0) && (bc.lo(0) == BCType::ext_dir ||
bc.lo(0) == BCType::hoextrap)) {
if (i+2 < u.end.x) {
dc = -Real(16./15.)*u(i-1,j,k,nu) + Real(0.5)*u(i,j,k,nu)
+ Real(2./3.)*u(i+1,j,k,nu) - Real(0.1)*u(i+2,j,k,nu);
} else {
dc = Real(0.25)*(u(i+1,j,k,nu)+Real(5.)*u(i,j,k,nu)-Real(6.)*u(i-1,j,k,nu));
}
}
if (i == domain.bigEnd(0) && (bc.hi(0) == BCType::ext_dir ||
bc.hi(0) == BCType::hoextrap)) {
if (i-2 >= u.begin.x) {
dc = Real(16./15.)*u(i+1,j,k,nu) - Real(0.5)*u(i,j,k,nu)
- Real(2./3.)*u(i-1,j,k,nu) + Real(0.1)*u(i-2,j,k,nu);
} else {
dc = -Real(0.25)*(u(i-1,j,k,nu)+Real(5.)*u(i,j,k,nu)-Real(6.)*u(i+1,j,k,nu));
}
}
return dc;
}
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE
Real mf_compute_slopes_y (int i, int j, int k, Array4<Real const> const& u, int nu,
Box const& domain, BCRec const& bc)
{
Real dc = Real(0.5) * (u(i,j+1,k,nu) - u(i,j-1,k,nu));
if (j == domain.smallEnd(1) && (bc.lo(1) == BCType::ext_dir ||
bc.lo(1) == BCType::hoextrap)) {
if (j+2 < u.end.y) {
dc = -Real(16./15.)*u(i,j-1,k,nu) + Real(0.5)*u(i,j,k,nu)
+ Real(2./3.)*u(i,j+1,k,nu) - Real(0.1)*u(i,j+2,k,nu);
} else {
dc = Real(0.25)*(u(i,j+1,k,nu)+Real(5.)*u(i,j,k,nu)-Real(6.)*u(i,j-1,k,nu));
}
}
if (j == domain.bigEnd(1) && (bc.hi(1) == BCType::ext_dir ||
bc.hi(1) == BCType::hoextrap)) {
if (j-2 >= u.begin.y) {
dc = Real(16./15.)*u(i,j+1,k,nu) - Real(0.5)*u(i,j,k,nu)
- Real(2./3.)*u(i,j-1,k,nu) + Real(0.1)*u(i,j-2,k,nu);
} else {
dc = -Real(0.25)*(u(i,j-1,k,nu)+Real(5.)*u(i,j,k,nu)-Real(6.)*u(i,j+1,k,nu));
}
}
return dc;
}
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE
Real mf_compute_slopes_z (int i, int j, int k, Array4<Real const> const& u, int nu,
Box const& domain, BCRec const& bc)
{
Real dc = Real(0.5) * (u(i,j,k+1,nu) - u(i,j,k-1,nu));
if (k == domain.smallEnd(2) && (bc.lo(2) == BCType::ext_dir ||
bc.lo(2) == BCType::hoextrap)) {
if (k+2 < u.end.z) {
dc = -Real(16./15.)*u(i,j,k-1,nu) + Real(0.5)*u(i,j,k,nu)
+ Real(2./3.)*u(i,j,k+1,nu) - Real(0.1)*u(i,j,k+2,nu);
} else {
dc = Real(0.25)*(u(i,j,k+1,nu)+Real(5.)*u(i,j,k,nu)-Real(6.)*u(i,j,k-1,nu));
}
}
if (k == domain.bigEnd(2) && (bc.hi(2) == BCType::ext_dir ||
bc.hi(2) == BCType::hoextrap)) {
if (k-2 >= u.begin.z) {
dc = Real(16./15.)*u(i,j,k+1,nu) - Real(0.5)*u(i,j,k,nu)
- Real(2./3.)*u(i,j,k-1,nu) + Real(0.1)*u(i,j,k-2,nu);
} else {
dc = -Real(0.25)*(u(i,j,k-1,nu)+Real(5.)*u(i,j,k,nu)-Real(6.)*u(i,j,k+1,nu));
}
}
return dc;
}
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE
Real mf_cell_quadratic_compute_slopes_xx (int i, int j, int k,
Array4<Real const> const& u, int nu,
Box const& domain, BCRec const& bc)
{
Real xx = u(i-1,j,k,nu) - 2.0_rt * u(i,j,k,nu) + u(i+1,j,k,nu);
if (i == domain.smallEnd(0) && (bc.lo(0) == BCType::ext_dir ||
bc.lo(0) == BCType::hoextrap)) {
if (i+2 < u.end.x) {
xx = 0._rt;
}
}
if (i == domain.bigEnd(0) && (bc.hi(0) == BCType::ext_dir ||
bc.hi(0) == BCType::hoextrap)) {
if (i-2 >= u.begin.x) {
xx = 0._rt;
}
}
return xx;
}
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE
Real mf_cell_quadratic_compute_slopes_yy (int i, int j, int k,
Array4<Real const> const& u, int nu,
Box const& domain, BCRec const& bc)
{
Real yy = u(i,j-1,k,nu) - 2.0_rt * u(i,j,k,nu) + u(i,j+1,k,nu);
if (j == domain.smallEnd(1) && (bc.lo(1) == BCType::ext_dir ||
bc.lo(1) == BCType::hoextrap)) {
if (j+2 < u.end.y) {
yy = 0._rt;
}
}
if (j == domain.bigEnd(1) && (bc.hi(1) == BCType::ext_dir ||
bc.hi(1) == BCType::hoextrap)) {
if (j-2 >= u.begin.y) {
yy = 0._rt;
}
}
return yy;
}
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE
Real mf_cell_quadratic_compute_slopes_zz (int i, int j, int k,
Array4<Real const> const& u, int nu,
Box const& domain, BCRec const& bc)
{
Real zz = u(i,j,k-1,nu) - 2.0_rt * u(i,j,k,nu) + u(i,j,k+1,nu);
if (k == domain.smallEnd(2) && (bc.lo(2) == BCType::ext_dir ||
bc.lo(2) == BCType::hoextrap)) {
if (k+2 < u.end.z) {
zz = 0._rt;
}
}
if (k == domain.bigEnd(1) && (bc.hi(2) == BCType::ext_dir ||
bc.hi(2) == BCType::hoextrap)) {
if (k-2 >= u.begin.z) {
zz = 0._rt;
}
}
return zz;
}
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE
Real mf_cell_quadratic_compute_slopes_xy (int i, int j, int k,
Array4<Real const> const& u, int nu,
Box const& domain, BCRec const& bc)
{
Real xy = (1._rt/4._rt) * ( u(i-1,j-1,k,nu) - u(i+1,j-1,k,nu)
- u(i-1,j+1,k,nu) + u(i+1,j+1,k,nu) );
if (i == domain.smallEnd(0) && (bc.lo(0) == BCType::ext_dir ||
bc.lo(0) == BCType::hoextrap)) {
if (i+2 < u.end.x) {
xy = 0._rt;
}
}
if (i == domain.bigEnd(0) && (bc.hi(0) == BCType::ext_dir ||
bc.hi(0) == BCType::hoextrap)) {
if (i-2 >= u.begin.x) {
xy = 0._rt;
}
}
if (j == domain.smallEnd(1) && (bc.lo(1) == BCType::ext_dir ||
bc.lo(1) == BCType::hoextrap)) {
if (j+2 < u.end.y) {
xy = 0._rt;
}
}
if (j == domain.bigEnd(1) && (bc.hi(1) == BCType::ext_dir ||
bc.hi(1) == BCType::hoextrap)) {
if (j-2 >= u.begin.y) {
xy = 0._rt;
}
}
return xy;
}
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE
Real mf_cell_quadratic_compute_slopes_xz (int i, int j, int k,
Array4<Real const> const& u, int nu,
Box const& domain, BCRec const& bc)
{
Real xz = (1._rt/4._rt) * ( u(i-1,j,k-1,nu) - u(i+1,j,k-1,nu)
- u(i-1,j,k+1,nu) + u(i+1,j,k+1,nu) );
if (i == domain.smallEnd(0) && (bc.lo(0) == BCType::ext_dir ||
bc.lo(0) == BCType::hoextrap)) {
if (i+2 < u.end.x) {
xz = 0._rt;
}
}
if (i == domain.bigEnd(0) && (bc.hi(0) == BCType::ext_dir ||
bc.hi(0) == BCType::hoextrap)) {
if (i-2 >= u.begin.x) {
xz = 0._rt;
}
}
if (k == domain.smallEnd(2) && (bc.lo(2) == BCType::ext_dir ||
bc.lo(2) == BCType::hoextrap)) {
if (k+2 < u.end.z) {
xz = 0._rt;
}
}
if (k == domain.bigEnd(1) && (bc.hi(2) == BCType::ext_dir ||
bc.hi(2) == BCType::hoextrap)) {
if (k-2 >= u.begin.z) {
xz = 0._rt;
}
}
return xz;
}
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE
Real mf_cell_quadratic_compute_slopes_yz (int i, int j, int k,
Array4<Real const> const& u, int nu,
Box const& domain, BCRec const& bc)
{
Real yz = (1._rt/4._rt) * ( u(i,j-1,k-1,nu) - u(i,j-1,k+1,nu)
- u(i,j+1,k-1,nu) + u(i,j+1,k+1,nu) );
if (j == domain.smallEnd(1) && (bc.lo(1) == BCType::ext_dir ||
bc.lo(1) == BCType::hoextrap)) {
if (j+2 < u.end.y) {
yz = 0._rt;
}
}
if (j == domain.bigEnd(1) && (bc.hi(1) == BCType::ext_dir ||
bc.hi(1) == BCType::hoextrap)) {
if (j-2 >= u.begin.y) {
yz = 0._rt;
}
}
if (k == domain.smallEnd(2) && (bc.lo(2) == BCType::ext_dir ||
bc.lo(2) == BCType::hoextrap)) {
if (k+2 < u.end.z) {
yz = 0._rt;
}
}
if (k == domain.bigEnd(1) && (bc.hi(2) == BCType::ext_dir ||
bc.hi(2) == BCType::hoextrap)) {
if (k-2 >= u.begin.z) {
yz = 0._rt;
}
}
return yz;
}
} // namespace
} // namespace amrex
#if (AMREX_SPACEDIM == 1)
#include <AMReX_MFInterp_1D_C.H>
#elif (AMREX_SPACEDIM == 2)
#include <AMReX_MFInterp_2D_C.H>
#else
#include <AMReX_MFInterp_3D_C.H>
#endif
#endif