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!Environment Canada - Atmospheric Science and Technology License/Disclaimer,
! version 3; Last Modified: May 7, 2008.
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***s/p adw_trilin_turbo - Optimized tri-linear interpolation
* with SETINT inside
*
#include "model_macros_f.h"
*
subroutine adw_trilin_turbo ( F_out, F_in, F_dt, 13
% F_x, F_y, F_z, F_capz,
% Fn_I, F_num, i0, in, j0, jn, kn)
*
implicit none
*
integer F_num, Fn_I(F_num), i0, in, j0, jn, kn
*
real F_dt, F_in(*)
*
real F_out(F_num), F_x(F_num), F_y(F_num), F_z(F_num)
real F_capz(F_num)
*
*authors
* Valin & Tanguay
*
* (Based on adw_trilin v_3.1.1)
*
*revision
* v3_20 -Valin & Tanguay - initial version
* v3_21 -Tanguay M. - evaluate min-max vertical CFL as function of k
*
*object
* see id section
*
* NOTE: capx,capy are recalculated but capz is stored in F_capz
*
*arguments
*______________________________________________________________________
* | | |
* NAME | DESCRIPTION | I/O |
*--------------|-------------------------------------------------|-----|
* F_out | F_dt * result of interpolation | o |
* F_in | field to interpolate | i |
* | | |
* F_dt | multiplicative constant (1.0 or timestep lenght)| i |
* | | |
* F_x | \ | i |
* F_y | x,y,z positions | i |
* F_z | / | i |
* | | |
* F_capz | precomputed displacements along the z-direction | io |
* | | |
* Fn_I | localisation indices | i |
* | | |
* F_num | number of points to interpolate | i |
*______________|_________________________________________________|_____|
*
*implicits
#include "glb_ld.cdk"
#include "adw.cdk"
#include "v4dcfl.cdk"
************************************************************************
*
integer n, n0, nijag, nij, o1, o2, i, j, k, iimax, jjmax, kkmax,
% ii,jj,kk
*
real capx, capy, capz
*
real*8 rri, rrj, rrk, prf1, prf2, prf3, prf4
*
integer cfl,err
logical done_L
data done_L /.false./
save done_L
*
* ----------------------------------------------------------------
*
* Initialize min-max vertical CFL as function of k
* ------------------------------------------------
if(.not.done_L) then
call hpalloc(V4dcfl_p_ ,l_nk, err,1)
call hpalloc(V4dcfl_n_ ,l_nk, err,1)
do k = 1,l_nk
V4dcfl_p(k) = 0
V4dcfl_n(k) = 0
enddo
done_L = .true.
endif
*
nijag = Adw_nit * Adw_njt
nij = l_ni*l_nj
*
iimax = G_ni+2*Adw_halox-1
jjmax = G_nj+Adw_haloy
kkmax = l_nk-1
*
!$omp parallel do private(n,n0,ii,jj,kk,rri,rrj,rrk,
!$omp& capx,capy,capz,o1,o2,prf1,prf2,prf3,prf4,cfl)
do 100 k=1,kn
do 90 j=j0,jn
n0 = (k-1)*nij + ((j-1)*l_ni)
if ( Adw_hor_L ) then
do i=i0,in
n = n0 + i
*
rri= F_x(n)
ii = ( rri - Adw_x00_8 ) * Adw_ovdx_8
ii = Adw_lcx( ii+1 ) + 1
if ( rri .lt. Adw_bsx_8(ii) ) ii = ii - 1
ii = max(1,min(ii,iimax))
*
rrj= F_y(n)
jj = ( rrj - Adw_y00_8 ) * Adw_ovdy_8
jj = Adw_lcy( jj+1 ) + 1
if ( rrj .lt. Adw_bsy_8(jj) ) jj = jj - 1
jj = max(Adw_haloy,min(jj,jjmax))
*
kk = ishft(Fn_I(n) , -24)
Fn_I(n) = ior( ior(ishft(jj,12) , ii) , ishft( kk , 24) )
*
enddo
endif
if ( Adw_ver_L ) then
do i=i0,in
n = n0 + i
*
rrk= F_z(n)
kk = ( rrk - Adw_z00_8 ) * Adw_ovdz_8
kk = Adw_lcz( kk+1 )
rrk = rrk - Adw_bsz_8(kk)
if ( rrk .lt. 0.0 ) kk = kk - 1
*
capz = rrk * Adw_diz_8(kk)
if ( rrk .lt. 0.0 ) capz = 1.0 + capz
*
* We keep F_capz, otherwise we would need rrk
* -------------------------------------------
F_capz(n) = capz
*
ii = and( Fn_I(n) , 4095 )
jj = and( ishft( Fn_I(n) , -12 ) , 4095 )
Fn_I(n) = ior( ior(ishft(jj,12) , ii) , ishft( kk , 24) )
*
* Evaluate min-max vertical CFL as function of k
* ----------------------------------------------
cfl = (kk+1) - k
if (cfl.gt.V4dcfl_p(k) ) V4dcfl_p(k) = cfl
if (cfl.lt.V4dcfl_n(k) ) V4dcfl_n(k) = cfl
*
enddo
endif
do 80 i=i0,in
n = n0 + i
*
ii = and( Fn_I(n) , 4095 )
jj = and( ishft( Fn_I(n) , -12 ) , 4095 )
kk = ishft(Fn_I(n) , -24)
*
rri= F_x(n)
rrj= F_y(n)
*
o1 = (kk)*nijag + (jj-Adw_int_j_off-1)*Adw_nit + (ii-Adw_int_i_off)
o2 = o1 + Adw_nit
*
************************************************************************
* x interpolation
************************************************************************
capx = (rri-Adw_bsx_8(ii)) *Adw_xbc_8(ii)
*
prf1 = (1.0 - capx) * F_in(o1) + capx * F_in(o1+1)
prf2 = (1.0 - capx) * F_in(o2) + capx * F_in(o2+1)
*
o1 = o1 + nijag
o2 = o2 + nijag
*
prf3 = (1.0 - capx) * F_in(o1) + capx * F_in(o1+1)
prf4 = (1.0 - capx) * F_in(o2) + capx * F_in(o2+1)
*
************************************************************************
* y interpolation
************************************************************************
capy = (rrj-Adw_bsy_8(jj)) *Adw_ybc_8(jj)
*
prf1 = (1.0 - capy) * prf1 + capy * prf2
prf2 = (1.0 - capy) * prf3 + capy * prf4
************************************************************************
* z interpolation
************************************************************************
capz = F_capz(n)
*
F_out(n) = ( (1.0 - capz) * prf1 + capz * prf2 ) * F_dt
*
80 continue
90 continue
100 continue
!$omp end parallel do
*
Adw_hor_L = .false.
Adw_ver_L = .false.
*
return
end