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mpfft2lib.f
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mpfft2lib.f
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c-----------------------------------------------------------------------
c 2d parallel PIC multi-tasking library for fast fourier transforms
c mpfft2lib.f contains multi-tasking procedures to perform ffts:
c MPFFT2R multi-tasking wrapper for WPFFT2R
c MPFFT2RX multi-tasking wrapper for WPFFT2RX
c MPFFT2R2 multi-tasking wrapper for WPFFT2R2
c MPFFT2R3 multi-tasking wrapper for WPFFT2R3
c MPFFT2RX2 multi-tasking wrapper for WPFFT2RX2
c MPFFT2RX3 multi-tasking wrapper for WPFFT2RX3
c MPFFT2RN multi-tasking wrapper for WPFFT2RN
c MPFFT2RXN multi-tasking wrapper for WPFFT2RXN
c MP2FFT2RN multi-tasking wrapper for WP2FFT2RN
c MPFSST2R multi-tasking wrapper for WPFSST2R
c MPFSCT2R multi-tasking wrapper for WPFSCT2R
c MPFCST2R multi-tasking wrapper for WPFCST2R
c MPFCCT2R multi-tasking wrapper for WPFCCT2R
c MPFCST2R2 multi-tasking wrapper for WPFCST2R2
c MPFSCT2R2 multi-tasking wrapper for WPFSCT2R2
c MPFCST2R3 multi-tasking wrapper for WPFCST2R3
c MPFSCT2R3 multi-tasking wrapper for WPFSCT2R3
c MPFSFT2R multi-tasking wrapper for WPFSFT2R
c MPFCFT2R multi-tasking wrapper for WPFCFT2R
c MPFCSFT2R2 multi-tasking wrapper for WPFCSFT2R2
c MPFSCFT2R2 multi-tasking wrapper for WPFSCFT2R2
c MPFCSFT2R3 multi-tasking wrapper for WPFCSFT2R3
c MPFSCFT2R3 multi-tasking wrapper for WPFSCFT2R3
c MPFDSFT2RX multi-tasking wrapper for WPFDSFT2RX
c MPFDCFT2RX multi-tasking wrapper for WPFDCFT2RX
c MPFDCSFT2R2 multi-tasking wrapper for WPFDCSFT2R2
c MPFDSCFT2R2 multi-tasking wrapper for WPFDSCFT2R2
c MPFDCSFT2R3 multi-tasking wrapper for WPFDCSFT2R3
c MPFDSCFT2R3 multi-tasking wrapper for WPFDSCFT2R3
c written by viktor k. decyk, ucla
c copyright 1995, regents of the university of california
c update: december 10, 2008
c-----------------------------------------------------------------------
subroutine MPFFT2R(f,g,bs,br,isign,ntpose,mixup,sct,ttp,indx,indy,
1kstrt,nxvh,nyv,kxp,kyp,kypd,jblok,kblok,nxhyd,nxyhd,kxyip,iftask,n
2mt,ierr)
c multi-tasking real to complex fft
c kxyip = initial index arrays for tasks
c iftask = index to notify queue for task (0 if error)
c nmt = number of tasks
c ierr = ierror indicator (0 = no error)
implicit none
integer isign, ntpose, indx, indy, kstrt, nxvh, nyv, kxp, kyp
integer kypd, jblok, kblok, nxhyd, nxyhd, mixup
integer kxyip, iftask, nmt, ierr
real ttp
complex f, g, bs, br, sct
dimension f(nxvh,kypd,kblok), g(nyv,kxp,jblok)
dimension bs(kxp,kyp,kblok), br(kxp,kyp,jblok)
dimension mixup(nxhyd), sct(nxyhd)
dimension kxyip(nmt), iftask(nmt)
c local data
integer nargs, nx, ny, nxh, kxpi, kxpp, kxpl, kypi, kypp, kypl
integer i
real tf
double precision dtime
external PFFT2RXX, PFFT2RXY
data nargs /14/
c calculate range of indices
nx = 2**indx
ny = 2**indy
nxh = nx/2
kxpp = kxp/(nmt + 1)
kypp = kyp/(nmt + 1)
kxpi = kxpp*nmt
kypi = kypp*nmt
kxpl = kxp - kxpi
kypl = kyp - kypi
kxpi = kxpi + 1
kypi = kypi + 1
ierr = 0
c inverse fourier transform
if (isign.lt.0) then
c start x fft tasks
do 10 i = 1, nmt
kxyip(i) = kypp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2RXX,nargs,f,isign,mixup,sct,in
1dx,indy,kstrt,kxyip(i),kypp,nxvh,kypd,kblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
10 continue
c finish x fft
call PFFT2RXX(f,isign,mixup,sct,indx,indy,kstrt,kypi,kypl,nxvh,
1kypd,kblok,nxhyd,nxyhd)
c wait for tasks to complete
do 20 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) then
ierr = -2
return
endif
20 continue
c transpose f array to g
call PWTIMERA(-1,ttp,dtime)
call PTPOSE(f,g,bs,br,nxh,ny,kstrt,nxvh,nyv,kxp,kyp,kxp,kypd,jb
1lok,kblok)
call PWTIMERA(1,ttp,dtime)
c start y fft tasks
do 30 i = 1, nmt
kxyip(i) = kxpp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2RXY,nargs,g,isign,mixup,sct,in
1dx,indy,kstrt,kxyip(i),kxpp,nyv,kxp,jblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
30 continue
c finish y fft
call PFFT2RXY(g,isign,mixup,sct,indx,indy,kstrt,kxpi,kxpl,nyv,k
1xp,jblok,nxhyd,nxyhd)
c wait for tasks to complete
do 40 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) ierr = -2
40 continue
c transpose g array to f
if (ntpose.eq.0) then
call PWTIMERA(-1,tf,dtime)
call PTPOSE(g,f,br,bs,ny,nxh,kstrt,nyv,nxvh,kyp,kxp,kypd,kxp
1,kblok,jblok)
call PWTIMERA(1,tf,dtime)
endif
c forward fourier transform
else if (isign.gt.0) then
c transpose f array to g
if (ntpose.eq.0) then
call PWTIMERA(-1,tf,dtime)
call PTPOSE(f,g,bs,br,nxh,ny,kstrt,nxvh,nyv,kxp,kyp,kxp,kypd
1,jblok,kblok)
call PWTIMERA(1,tf,dtime)
endif
c start y fft tasks
do 50 i = 1, nmt
kxyip(i) = kxpp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2RXY,nargs,g,isign,mixup,sct,in
1dx,indy,kstrt,kxyip(i),kxpp,nyv,kxp,jblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
50 continue
c finish y fft
call PFFT2RXY(g,isign,mixup,sct,indx,indy,kstrt,kxpi,kxpl,nyv,k
1xp,jblok,nxhyd,nxyhd)
c wait for tasks to complete
do 60 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) ierr = -2
60 continue
c transpose g array to f
call PWTIMERA(-1,ttp,dtime)
call PTPOSE(g,f,br,bs,ny,nxh,kstrt,nyv,nxvh,kyp,kxp,kypd,kxp,kb
1lok,jblok)
call PWTIMERA(1,ttp,dtime)
c start x fft tasks
do 70 i = 1, nmt
kxyip(i) = kypp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2RXX,nargs,f,isign,mixup,sct,in
1dx,indy,kstrt,kxyip(i),kypp,nxvh,kypd,kblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
70 continue
c finish x fft
call PFFT2RXX(f,isign,mixup,sct,indx,indy,kstrt,kypi,kypl,nxvh,
1kypd,kblok,nxhyd,nxyhd)
c wait for tasks to complete
do 80 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) then
ierr = -2
return
endif
80 continue
endif
if (ntpose.eq.0) ttp = ttp + tf
return
end
c-----------------------------------------------------------------------
subroutine MPFFT2RX(f,g,isign,ntpose,mixup,sct,ttp,indx,indy,kstrt
1,nxvh,nyv,kxp,kyp,kypd,jblok,kblok,nxhyd,nxyhd,kxyip,iftask,nmt,ie
2rr)
c multi-tasking real to complex fft
c kxyip = initial index arrays for tasks
c iftask = index to notify queue for task (0 if error)
c nmt = number of tasks
c ierr = ierror indicator (0 = no error)
implicit none
integer isign, ntpose, mixup, indx, indy, kstrt, nxvh
integer nyv, kxp, kyp, kypd, jblok, kblok, nxhyd, nxyhd
integer kxyip, iftask, nmt, ierr
real ttp
complex f, g, sct
dimension f(nxvh,kypd,kblok), g(nyv,kxp,jblok)
dimension mixup(nxhyd), sct(nxyhd)
dimension kxyip(nmt), iftask(nmt)
c local data
integer nargs, nx, ny, nxh, kxpi, kxpp, kxpl, kypi, kypp, kypl
integer i
real tf
double precision dtime
external PFFT2RXX, PFFT2RXY
data nargs /14/
c calculate range of indices
nx = 2**indx
ny = 2**indy
nxh = nx/2
kxpp = kxp/(nmt + 1)
kypp = kyp/(nmt + 1)
kxpi = kxpp*nmt
kypi = kypp*nmt
kxpl = kxp - kxpi
kypl = kyp - kypi
kxpi = kxpi + 1
kypi = kypi + 1
ierr = 0
c inverse fourier transform
if (isign.lt.0) then
c start x fft tasks
do 10 i = 1, nmt
kxyip(i) = kypp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2RXX,nargs,f,isign,mixup,sct,in
1dx,indy,kstrt,kxyip(i),kypp,nxvh,kypd,kblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
10 continue
c finish x fft
call PFFT2RXX(f,isign,mixup,sct,indx,indy,kstrt,kypi,kypl,nxvh,
1kypd,kblok,nxhyd,nxyhd)
c wait for tasks to complete
do 20 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) then
ierr = -2
return
endif
20 continue
c transpose f array to g
call PWTIMERA(-1,ttp,dtime)
call PTPOSEX(f,g,nxh,ny,kstrt,nxvh,nyv,kxp,kyp,kxp,kypd,jblok,k
1blok)
call PWTIMERA(1,ttp,dtime)
c start y fft tasks
do 30 i = 1, nmt
kxyip(i) = kxpp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2RXY,nargs,g,isign,mixup,sct,in
1dx,indy,kstrt,kxyip(i),kxpp,nyv,kxp,jblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
30 continue
c finish y fft
call PFFT2RXY(g,isign,mixup,sct,indx,indy,kstrt,kxpi,kxpl,nyv,k
1xp,jblok,nxhyd,nxyhd)
c wait for tasks to complete
do 40 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) ierr = -2
40 continue
c transpose g array to f
if (ntpose.eq.0) then
call PWTIMERA(-1,tf,dtime)
call PTPOSEX(g,f,ny,nxh,kstrt,nyv,nxvh,kyp,kxp,kypd,kxp,kblo
1k,jblok)
call PWTIMERA(1,tf,dtime)
endif
c forward fourier transform
else if (isign.gt.0) then
c transpose f array to g
if (ntpose.eq.0) then
call PWTIMERA(-1,tf,dtime)
call PTPOSEX(f,g,nxh,ny,kstrt,nxvh,nyv,kxp,kyp,kxp,kypd,jblo
1k,kblok)
call PWTIMERA(1,tf,dtime)
endif
c start y fft tasks
do 50 i = 1, nmt
kxyip(i) = kxpp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2RXY,nargs,g,isign,mixup,sct,in
1dx,indy,kstrt,kxyip(i),kxpp,nyv,kxp,jblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
50 continue
c finish y fft
call PFFT2RXY(g,isign,mixup,sct,indx,indy,kstrt,kxpi,kxpl,nyv,k
1xp,jblok,nxhyd,nxyhd)
c wait for tasks to complete
do 60 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) ierr = -2
60 continue
c transpose g array to f
call PWTIMERA(-1,ttp,dtime)
call PTPOSEX(g,f,ny,nxh,kstrt,nyv,nxvh,kyp,kxp,kypd,kxp,kblok,j
1blok)
call PWTIMERA(1,ttp,dtime)
c start x fft tasks
do 70 i = 1, nmt
kxyip(i) = kypp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2RXX,nargs,f,isign,mixup,sct,in
1dx,indy,kstrt,kxyip(i),kypp,nxvh,kypd,kblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
70 continue
c finish x fft
call PFFT2RXX(f,isign,mixup,sct,indx,indy,kstrt,kypi,kypl,nxvh,
1kypd,kblok,nxhyd,nxyhd)
c wait for tasks to complete
do 80 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) then
ierr = -2
return
endif
80 continue
endif
if (ntpose.eq.0) ttp = ttp + tf
return
end
c-----------------------------------------------------------------------
subroutine MPFFT2R2(f,g,bs,br,isign,ntpose,mixup,sct,ttp,indx,indy
1,kstrt,nxvh,nyv,kxp,kyp,kypd,jblok,kblok,nxhyd,nxyhd,kxyip,iftask,
2nmt,ierr)
c multi-tasking real to complex fft
c kxyip = initial index arrays for tasks
c iftask = index to notify queue for task (0 if error)
c nmt = number of tasks
c ierr = ierror indicator (0 = no error)
implicit none
integer isign, ntpose, indx, indy, kstrt, nxvh, nyv, kxp, kyp
integer kypd, jblok, kblok, nxhyd, nxyhd, mixup
integer kxyip, iftask, nmt, ierr
real ttp
complex f, g, bs, br, sct
dimension f(2,nxvh,kypd,kblok), g(2,nyv,kxp,jblok)
dimension bs(2,kxp,kyp,kblok), br(2,kxp,kyp,jblok)
dimension mixup(nxhyd), sct(nxyhd)
dimension kxyip(nmt), iftask(nmt)
c local data
integer nargs, nx, ny, nxh, kxpi, kxpp, kxpl, kypi, kypp, kypl
integer i
real tf
double precision dtime
external PFFT2R2XX, PFFT2R2XY
data nargs /14/
c calculate range of indices
nx = 2**indx
ny = 2**indy
nxh = nx/2
kxpp = kxp/(nmt + 1)
kypp = kyp/(nmt + 1)
kxpi = kxpp*nmt
kypi = kypp*nmt
kxpl = kxp - kxpi
kypl = kyp - kypi
kxpi = kxpi + 1
kypi = kypi + 1
ierr = 0
c inverse fourier transform
if (isign.lt.0) then
c start x fft tasks
do 10 i = 1, nmt
kxyip(i) = kypp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R2XX,nargs,f,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kypp,nxvh,kypd,kblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
10 continue
c finish x fft
call PFFT2R2XX(f,isign,mixup,sct,indx,indy,kstrt,kypi,kypl,nxvh
1,kypd,kblok,nxhyd,nxyhd)
c wait for tasks to complete
do 20 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) then
ierr = -2
return
endif
20 continue
c transpose f array to g
call PWTIMERA(-1,ttp,dtime)
call P2TPOSE(f,g,bs,br,nxh,ny,kstrt,nxvh,nyv,kxp,kyp,kxp,kypd,j
1blok,kblok)
call PWTIMERA(1,ttp,dtime)
c start y fft tasks
do 30 i = 1, nmt
kxyip(i) = kxpp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R2XY,nargs,g,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kxpp,nyv,kxp,jblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
30 continue
c finish y fft
call PFFT2R2XY(g,isign,mixup,sct,indx,indy,kstrt,kxpi,kxpl,nyv,
1kxp,jblok,nxhyd,nxyhd)
c wait for tasks to complete
do 40 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) ierr = -2
40 continue
c transpose g array to f
if (ntpose.eq.0) then
call PWTIMERA(-1,tf,dtime)
call P2TPOSE(g,f,br,bs,ny,nxh,kstrt,nyv,nxvh,kyp,kxp,kypd,kx
1p,kblok,jblok)
call PWTIMERA(1,tf,dtime)
endif
c forward fourier transform
else if (isign.gt.0) then
c transpose f array to g
if (ntpose.eq.0) then
call PWTIMERA(-1,tf,dtime)
call P2TPOSE(f,g,bs,br,nxh,ny,kstrt,nxvh,nyv,kxp,kyp,kxp,kyp
1d,jblok,kblok)
call PWTIMERA(1,tf,dtime)
endif
c start y fft tasks
do 50 i = 1, nmt
kxyip(i) = kxpp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R2XY,nargs,g,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kxpp,nyv,kxp,jblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
50 continue
c finish y fft
call PFFT2R2XY(g,isign,mixup,sct,indx,indy,kstrt,kxpi,kxpl,nyv,
1kxp,jblok,nxhyd,nxyhd)
c wait for tasks to complete
do 60 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) ierr = -2
60 continue
c transpose g array to f
call PWTIMERA(-1,ttp,dtime)
call P2TPOSE(g,f,br,bs,ny,nxh,kstrt,nyv,nxvh,kyp,kxp,kypd,kxp,k
1blok,jblok)
call PWTIMERA(1,ttp,dtime)
c start x fft tasks
do 70 i = 1, nmt
kxyip(i) = kypp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R2XX,nargs,f,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kypp,nxvh,kypd,kblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
70 continue
c finish x fft
call PFFT2R2XX(f,isign,mixup,sct,indx,indy,kstrt,kypi,kypl,nxvh
1,kypd,kblok,nxhyd,nxyhd)
c wait for tasks to complete
do 80 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) then
ierr = -2
return
endif
80 continue
endif
if (ntpose.eq.0) ttp = ttp + tf
return
end
c-----------------------------------------------------------------------
subroutine MPFFT2R3(f,g,bs,br,isign,ntpose,mixup,sct,ttp,indx,indy
1,kstrt,nxvh,nyv,kxp,kyp,kypd,jblok,kblok,nxhyd,nxyhd,kxyip,iftask,
2nmt,ierr)
c multi-tasking real to complex fft
c kxyip = initial index arrays for tasks
c iftask = index to notify queue for task (0 if error)
c nmt = number of tasks
c ierr = ierror indicator (0 = no error)
implicit none
integer isign, ntpose, indx, indy, kstrt, nxvh, nyv, kxp, kyp
integer kypd, jblok, kblok, nxhyd, nxyhd, mixup
integer kxyip, iftask, nmt, ierr
real ttp
complex f, g, bs, br, sct
dimension f(3,nxvh,kypd,kblok), g(3,nyv,kxp,jblok)
dimension bs(3,kxp,kyp,kblok), br(3,kxp,kyp,jblok)
dimension mixup(nxhyd), sct(nxyhd)
dimension kxyip(nmt), iftask(nmt)
c local data
integer nargs, nx, ny, nxh, kxpi, kxpp, kxpl, kypi, kypp, kypl
integer i
real tf
double precision dtime
external PFFT2R3XX, PFFT2R3XY
data nargs /14/
c calculate range of indices
nx = 2**indx
ny = 2**indy
nxh = nx/2
kxpp = kxp/(nmt + 1)
kypp = kyp/(nmt + 1)
kxpi = kxpp*nmt
kypi = kypp*nmt
kxpl = kxp - kxpi
kypl = kyp - kypi
kxpi = kxpi + 1
kypi = kypi + 1
ierr = 0
c inverse fourier transform
if (isign.lt.0) then
c start x fft tasks
do 10 i = 1, nmt
kxyip(i) = kypp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R3XX,nargs,f,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kypp,nxvh,kypd,kblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
10 continue
c finish x fft
call PFFT2R3XX(f,isign,mixup,sct,indx,indy,kstrt,kypi,kypl,nxvh
1,kypd,kblok,nxhyd,nxyhd)
c wait for tasks to complete
do 20 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) then
ierr = -2
return
endif
20 continue
c transpose f array to g
call PWTIMERA(-1,ttp,dtime)
call P3TPOSE(f,g,bs,br,nxh,ny,kstrt,nxvh,nyv,kxp,kyp,kxp,kypd,j
1blok,kblok)
call PWTIMERA(1,ttp,dtime)
c start y fft tasks
do 30 i = 1, nmt
kxyip(i) = kxpp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R3XY,nargs,g,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kxpp,nyv,kxp,jblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
30 continue
c finish y fft
call PFFT2R3XY(g,isign,mixup,sct,indx,indy,kstrt,kxpi,kxpl,nyv,
1kxp,jblok,nxhyd,nxyhd)
c wait for tasks to complete
do 40 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) ierr = -2
40 continue
c transpose g array to f
if (ntpose.eq.0) then
call PWTIMERA(-1,tf,dtime)
call P3TPOSE(g,f,br,bs,ny,nxh,kstrt,nyv,nxvh,kyp,kxp,kypd,kx
1p,kblok,jblok)
call PWTIMERA(1,tf,dtime)
endif
c forward fourier transform
else if (isign.gt.0) then
c transpose f array to g
if (ntpose.eq.0) then
call PWTIMERA(-1,tf,dtime)
call P3TPOSE(f,g,bs,br,nxh,ny,kstrt,nxvh,nyv,kxp,kyp,kxp,kyp
1d,jblok,kblok)
call PWTIMERA(1,tf,dtime)
endif
c start y fft tasks
do 50 i = 1, nmt
kxyip(i) = kxpp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R3XY,nargs,g,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kxpp,nyv,kxp,jblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
50 continue
c finish y fft
call PFFT2R3XY(g,isign,mixup,sct,indx,indy,kstrt,kxpi,kxpl,nyv,
1kxp,jblok,nxhyd,nxyhd)
c wait for tasks to complete
do 60 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) ierr = -2
60 continue
c transpose g array to f
call PWTIMERA(-1,ttp,dtime)
call P3TPOSE(g,f,br,bs,ny,nxh,kstrt,nyv,nxvh,kyp,kxp,kypd,kxp,k
1blok,jblok)
call PWTIMERA(1,ttp,dtime)
c start x fft tasks
do 70 i = 1, nmt
kxyip(i) = kypp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R3XX,nargs,f,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kypp,nxvh,kypd,kblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
70 continue
c finish x fft
call PFFT2R3XX(f,isign,mixup,sct,indx,indy,kstrt,kypi,kypl,nxvh
1,kypd,kblok,nxhyd,nxyhd)
c wait for tasks to complete
do 80 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) then
ierr = -2
return
endif
80 continue
endif
if (ntpose.eq.0) ttp = ttp + tf
return
end
c-----------------------------------------------------------------------
subroutine MPFFT2RX2(f,g,isign,ntpose,mixup,sct,ttp,indx,indy,kstr
1t,nxvh,nyv,kxp,kyp,kypd,jblok,kblok,nxhyd,nxyhd,kxyip,iftask,nmt,i
2err)
c multi-tasking real to complex fft
c kxyip = initial index arrays for tasks
c iftask = index to notify queue for task (0 if error)
c nmt = number of tasks
c ierr = ierror indicator (0 = no error)
implicit none
integer isign, ntpose, mixup, indx, indy, kstrt, nxvh
integer nyv, kxp, kyp, kypd, jblok, kblok, nxhyd, nxyhd
integer kxyip, iftask, nmt, ierr
real ttp
complex f, g, sct
dimension f(2,nxvh,kypd,kblok), g(2,nyv,kxp,jblok)
dimension mixup(nxhyd), sct(nxyhd)
dimension kxyip(nmt), iftask(nmt)
c local data
integer nargs, nx, ny, nxh, kxpi, kxpp, kxpl, kypi, kypp, kypl
integer i
real tf
double precision dtime
external PFFT2R2XX, PFFT2R2XY
data nargs /14/
c calculate range of indices
nx = 2**indx
ny = 2**indy
nxh = nx/2
kxpp = kxp/(nmt + 1)
kypp = kyp/(nmt + 1)
kxpi = kxpp*nmt
kypi = kypp*nmt
kxpl = kxp - kxpi
kypl = kyp - kypi
kxpi = kxpi + 1
kypi = kypi + 1
ierr = 0
c inverse fourier transform
if (isign.lt.0) then
c start x fft tasks
do 10 i = 1, nmt
kxyip(i) = kypp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R2XX,nargs,f,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kypp,nxvh,kypd,kblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
10 continue
c finish x fft
call PFFT2R2XX(f,isign,mixup,sct,indx,indy,kstrt,kypi,kypl,nxvh
1,kypd,kblok,nxhyd,nxyhd)
c wait for tasks to complete
do 20 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) then
ierr = -2
return
endif
20 continue
c transpose f array to g
call PWTIMERA(-1,ttp,dtime)
call P2TPOSEX(f,g,nxh,ny,kstrt,nxvh,nyv,kxp,kyp,kxp,kypd,jblok,
1kblok)
call PWTIMERA(1,ttp,dtime)
c start y fft tasks
do 30 i = 1, nmt
kxyip(i) = kxpp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R2XY,nargs,g,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kxpp,nyv,kxp,jblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
30 continue
c finish y fft
call PFFT2R2XY(g,isign,mixup,sct,indx,indy,kstrt,kxpi,kxpl,nyv,
1kxp,jblok,nxhyd,nxyhd)
c wait for tasks to complete
do 40 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) ierr = -2
40 continue
c transpose g array to f
if (ntpose.eq.0) then
call PWTIMERA(-1,tf,dtime)
call P2TPOSEX(g,f,ny,nxh,kstrt,nyv,nxvh,kyp,kxp,kypd,kxp,kbl
1ok,jblok)
call PWTIMERA(1,tf,dtime)
endif
c forward fourier transform
else if (isign.gt.0) then
c transpose f array to g
if (ntpose.eq.0) then
call PWTIMERA(-1,tf,dtime)
call P2TPOSEX(f,g,nxh,ny,kstrt,nxvh,nyv,kxp,kyp,kxp,kypd,jbl
1ok,kblok)
call PWTIMERA(1,tf,dtime)
endif
c start y fft tasks
do 50 i = 1, nmt
kxyip(i) = kxpp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R2XY,nargs,g,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kxpp,nyv,kxp,jblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
50 continue
c finish y fft
call PFFT2R2XY(g,isign,mixup,sct,indx,indy,kstrt,kxpi,kxpl,nyv,
1kxp,jblok,nxhyd,nxyhd)
c wait for tasks to complete
do 60 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) ierr = -2
60 continue
c transpose g array to f
call PWTIMERA(-1,ttp,dtime)
call P2TPOSEX(g,f,ny,nxh,kstrt,nyv,nxvh,kyp,kxp,kypd,kxp,kblok,
1jblok)
call PWTIMERA(1,ttp,dtime)
c start x fft tasks
do 70 i = 1, nmt
kxyip(i) = kypp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R2XX,nargs,f,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kypp,nxvh,kypd,kblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
70 continue
c finish x fft
call PFFT2R2XX(f,isign,mixup,sct,indx,indy,kstrt,kypi,kypl,nxvh
1,kypd,kblok,nxhyd,nxyhd)
c wait for tasks to complete
do 80 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) then
ierr = -2
return
endif
80 continue
endif
if (ntpose.eq.0) ttp = ttp + tf
return
end
c-----------------------------------------------------------------------
subroutine MPFFT2RX3(f,g,isign,ntpose,mixup,sct,ttp,indx,indy,kstr
1t,nxvh,nyv,kxp,kyp,kypd,jblok,kblok,nxhyd,nxyhd,kxyip,iftask,nmt,i
2err)
c multi-tasking real to complex fft
c kxyip = initial index arrays for tasks
c iftask = index to notify queue for task (0 if error)
c nmt = number of tasks
c ierr = ierror indicator (0 = no error)
implicit none
integer isign, ntpose, indx, indy, kstrt, nxvh, nyv, kxp, kyp
integer kypd, jblok, kblok, nxhyd, nxyhd, mixup
integer kxyip, iftask, nmt, ierr
real ttp
complex f, g, sct
dimension f(3,nxvh,kypd,kblok), g(3,nyv,kxp,jblok)
dimension mixup(nxhyd), sct(nxyhd)
dimension kxyip(nmt), iftask(nmt)
c local data
integer nargs, nx, ny, nxh, kxpi, kxpp, kxpl, kypi, kypp, kypl
integer i
real tf
double precision dtime
external PFFT2R3XX, PFFT2R3XY
data nargs /14/
c calculate range of indices
nx = 2**indx
ny = 2**indy
nxh = nx/2
kxpp = kxp/(nmt + 1)
kypp = kyp/(nmt + 1)
kxpi = kxpp*nmt
kypi = kypp*nmt
kxpl = kxp - kxpi
kypl = kyp - kypi
kxpi = kxpi + 1
kypi = kypi + 1
ierr = 0
c inverse fourier transform
if (isign.lt.0) then
c start x fft tasks
do 10 i = 1, nmt
kxyip(i) = kypp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R3XX,nargs,f,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kypp,nxvh,kypd,kblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
10 continue
c finish x fft
call PFFT2R3XX(f,isign,mixup,sct,indx,indy,kstrt,kypi,kypl,nxvh
1,kypd,kblok,nxhyd,nxyhd)
c wait for tasks to complete
do 20 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) then
ierr = -2
return
endif
20 continue
c transpose f array to g
call PWTIMERA(-1,ttp,dtime)
call P3TPOSEX(f,g,nxh,ny,kstrt,nxvh,nyv,kxp,kyp,kxp,kypd,jblok,
1kblok)
call PWTIMERA(1,ttp,dtime)
c start y fft tasks
do 30 i = 1, nmt
kxyip(i) = kxpp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R3XY,nargs,g,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kxpp,nyv,kxp,jblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
30 continue
c finish y fft
call PFFT2R3XY(g,isign,mixup,sct,indx,indy,kstrt,kxpi,kxpl,nyv,
1kxp,jblok,nxhyd,nxyhd)
c wait for tasks to complete
do 40 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) ierr = -2
40 continue
c transpose g array to f
if (ntpose.eq.0) then
call PWTIMERA(-1,tf,dtime)
call P3TPOSEX(g,f,ny,nxh,kstrt,nyv,nxvh,kyp,kxp,kypd,kxp,kbl
1ok,jblok)
call PWTIMERA(1,tf,dtime)
endif
c forward fourier transform
else if (isign.gt.0) then
c transpose f array to g
if (ntpose.eq.0) then
call PWTIMERA(-1,tf,dtime)
call P3TPOSEX(f,g,nxh,ny,kstrt,nxvh,nyv,kxp,kyp,kxp,kypd,jbl
1ok,kblok)
call PWTIMERA(1,tf,dtime)
endif
c start y fft tasks
do 50 i = 1, nmt
kxyip(i) = kxpp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R3XY,nargs,g,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kxpp,nyv,kxp,jblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
50 continue
c finish y fft
call PFFT2R3XY(g,isign,mixup,sct,indx,indy,kstrt,kxpi,kxpl,nyv,
1kxp,jblok,nxhyd,nxyhd)
c wait for tasks to complete
do 60 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) ierr = -2
60 continue
c transpose g array to f
call PWTIMERA(-1,ttp,dtime)
call P3TPOSEX(g,f,ny,nxh,kstrt,nyv,nxvh,kyp,kxp,kypd,kxp,kblok,
1jblok)
call PWTIMERA(-1,ttp,dtime)
c start x fft tasks
do 70 i = 1, nmt
kxyip(i) = kypp*(i - 1) + 1
call MP_TASKSTART(iftask(i),PFFT2R3XX,nargs,f,isign,mixup,sct,i
1ndx,indy,kstrt,kxyip(i),kypp,nxvh,kypd,kblok,nxhyd,nxyhd)
c check for errors
if (iftask(i).eq.0) then
ierr = -1
return
endif
70 continue
c finish x fft
call PFFT2R3XX(f,isign,mixup,sct,indx,indy,kstrt,kypi,kypl,nxvh
1,kypd,kblok,nxhyd,nxyhd)
c wait for tasks to complete
do 80 i = 1, nmt
call MP_TASKWAIT(iftask(i))
c check for errors
if (iftask(i).ne.0) then
ierr = -2
return
endif
80 continue
endif
if (ntpose.eq.0) ttp = ttp + tf
return
end
c-----------------------------------------------------------------------
subroutine MPFFT2RN(f,g,bs,br,ss,isign,ntpose,mixup,sct,ttp,indx,i
1ndy,kstrt,nxvh,nyv,kxp,kyp,kypd,jblok,kblok,ndim,nxhyd,nxyhd,kxyip
2,iftask,nmt,ierr)
c multi-tasking real to complex fft
c kxyip = initial index arrays for tasks
c iftask = index to notify queue for task (0 if error)
c nmt = number of tasks
c ierr = ierror indicator (0 = no error)
implicit none
integer isign, ntpose, indx, indy, kstrt, nxvh, nyv, kxp, kyp
integer kypd, jblok, kblok, ndim, nxhyd, nxyhd, mixup
integer kxyip, iftask, nmt, ierr
real ttp
complex f, g, bs, br, ss, sct
dimension f(3,nxvh,kypd,kblok), g(3,nyv,kxp,jblok)
dimension bs(3,kxp,kyp,kblok), br(3,kxp,kyp,jblok)
dimension ss(ndim,nxvh,nmt+1)
dimension mixup(nxhyd), sct(nxyhd)
dimension kxyip(nmt), iftask(nmt)
c local data
integer i, nargs, margs, nx, ny, nxh, nmtt, kxpi, kxpp, kxpl
integer kypi, kypp, kypl
real tf
double precision dtime
external PFFT2RNXX, PFFT2RNXY