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DAMASK_EICMD
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transition to transposed storage

This commit is contained in:
Martin Diehl 2022-07-06 12:32:05 +02:00
parent 771ccb4485
commit ec0c486a2c
1 changed files with 17 additions and 7 deletions
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24
src/grid/spectral_utilities.f90
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@ -29,7 +29,10 @@ module spectral_utilities
! grid related information
real(pReal), protected, public :: wgt !< weighting factor 1/Nelems
real(pReal), protected, public, dimension(3) :: scaledGeomSize !< scaled geometry size for calculation of divergence
integer :: cells1Red !< cells(1)/2+1
integer :: &
cells1Red, & !< cells(1)/2+1
cells2, & !< (local) cells in 2nd direction
cells2Offset !< (local) cells offset in 2nd direction
!--------------------------------------------------------------------------------------------------
! variables storing information for spectral method and FFTW
@ -260,11 +263,6 @@ subroutine spectral_utilities_init()
print'(/,1x,a)', 'FFTW initialized'; flush(IO_STDOUT)
!--------------------------------------------------------------------------------------------------
! allocation
allocate (xi1st (3,cells1Red,cells(2),cells3),source = cmplx(0.0_pReal,0.0_pReal,pReal)) ! frequencies for first derivatives, only half the size for first dimension
allocate (xi2nd (3,cells1Red,cells(2),cells3),source = cmplx(0.0_pReal,0.0_pReal,pReal)) ! frequencies for second derivatives, only half the size for first dimension
cellsFFTW = int(cells,C_INTPTR_T)
N = fftw_mpi_local_size_many_transposed(3,[cellsFFTW(3),cellsFFTW(2),int(cells1Red,C_INTPTR_T)], &
@ -295,6 +293,15 @@ subroutine spectral_utilities_init()
[int(cells1Red*2,C_INTPTR_T),cellsFFTW(2),cells3FFTW])
call c_f_pointer(scalarField,scalarField_fourier, &
[int(cells1Red, C_INTPTR_T),cellsFFTW(2),cells3FFTW])
![int(cells1Red, C_INTPTR_T),cellsFFTW(3),cells2FFTW]) ! ToDo
cells2Offset = 0 ! ToDo
cells2 = cells(2) ! ToDo
!--------------------------------------------------------------------------------------------------
! allocation
allocate (xi1st (3,cells1Red,cells2,cells3),source = cmplx(0.0_pReal,0.0_pReal,pReal)) ! frequencies for first derivatives, only half the size for first dimension
allocate (xi2nd (3,cells1Red,cells2,cells3),source = cmplx(0.0_pReal,0.0_pReal,pReal)) ! frequencies for second derivatives, only half the size for first dimension
!--------------------------------------------------------------------------------------------------
! tensor MPI fftw plans
@ -336,14 +343,16 @@ subroutine spectral_utilities_init()
!--------------------------------------------------------------------------------------------------
! calculation of discrete angular frequencies, ordered as in FFTW (wrap around)
do k = cells3Offset+1, cells3Offset+cells3
!do k = 1, cells(3) ToDo
k_s(3) = k - 1
if (k > cells(3)/2 + 1) k_s(3) = k_s(3) - cells(3) ! running from 0,1,...,N/2,N/2+1,-N/2,-N/2+1,...,-1
do j = 1, cells(2)
do j = cells2Offset+1, cells2offset+cells2
k_s(2) = j - 1
if (j > cells(2)/2 + 1) k_s(2) = k_s(2) - cells(2) ! running from 0,1,...,N/2,N/2+1,-N/2,-N/2+1,...,-1
do i = 1, cells1Red
k_s(1) = i - 1 ! symmetry, junst running from 0,1,...,N/2,N/2+1
xi2nd(1:3,i,j,k-cells3Offset) = utilities_getFreqDerivative(k_s)
!xi2nd(1:3,i,j-cells2Offset,k) = utilities_getFreqDerivative(k_s) ToDo
where(mod(cells,2)==0 .and. [i,j,k] == cells/2+1 .and. &
spectral_derivative_ID == DERIVATIVE_CONTINUOUS_ID) ! for even grids, set the Nyquist Freq component to 0.0
xi1st(1:3,i,j,k-cells3Offset) = cmplx(0.0_pReal,0.0_pReal,pReal)
@ -356,6 +365,7 @@ subroutine spectral_utilities_init()
allocate (gamma_hat(3,3,3,3,1,1,1), source = cmplx(0.0_pReal,0.0_pReal,pReal))
else ! precalculation of gamma_hat field
allocate (gamma_hat(3,3,3,3,cells1Red,cells(2),cells3), source = cmplx(0.0_pReal,0.0_pReal,pReal))
!allocate (gamma_hat(3,3,3,3,cells1Red,cells2,cells(3)), source = cmplx(0.0_pReal,0.0_pReal,pReal)) ToDo
end if
call selfTest()