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cafpt2pt.f90
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cafpt2pt.f90
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!----------------------------------------------------------------------------!
! !
! Fortran Coarray MicroBenchmark Suite - Version 1.0 !
! !
! David Henty, EPCC; [email protected] !
! !
! Copyright 2013 the University of Edinburgh !
! !
! Licensed under the Apache License, Version 2.0 (the "License"); !
! you may not use this file except in compliance with the License. !
! You may obtain a copy of the License at !
! !
! http://www.apache.org/licenses/LICENSE-2.0 !
! !
! Unless required by applicable law or agreed to in writing, software !
! distributed under the License is distributed on an "AS IS" BASIS, !
! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. !
! See the License for the specific language governing permissions and !
! limitations under the License. !
! !
!----------------------------------------------------------------------------!
module cafpt2pt
contains
subroutine cafpingpong(image1, image2, cafmodetype, cafsynctype, &
maxndata, docheck)
use cafparams
use cafclock
use cafcore
implicit none
integer :: cafmodetype, cafsynctype, maxndata
logical :: docheck
double precision, allocatable, dimension(:), codimension[:] :: x
double precision :: time1, time2, time, t0, t1
integer :: count, nrep, blksize, stride, ndata, nextent, trialnrep
integer :: irep, i, ierr
integer :: image1, image2
double precision :: targettime
integer, dimension(1) :: neighbours
logical :: finished, oktime, active, lcheck, gcheck
gcheck = .true.
lcheck = .true.
targettime = p2ptargettime
trialnrep = 1
if (cafsynctype /= cafsyncall) then
active = .false.
else
active = .true.
end if
neighbours = 0
if (thisimage == image1) then
active = .true.
neighbours(1) = image2
end if
if (thisimage == image2) then
active = .true.
neighbours(1) = image1
end if
if (thisimage == 1) then
write(*,*) "----------------------------------"
write(*,*) "image1, image2 = ", image1, image2
write(*,*) "benchmarking: ", cafmodename(cafmodetype)
write(*,*) "synchronisation: ", cafsyncname(cafsynctype)
write(*,*) "maxndata: ", maxndata
if (docheck) then
write(*,*) 'verifying data'
else
write(*,*) 'NOT verifying data'
end if
write(*,*)
write(*,*) 'count blksize stride ndata nextent nrep time latency bwidth'
write(*,*)
end if
allocate(x(maxndata)[*])
x(:) = 0
select case (cafmodetype)
case(cafmodeput, cafmodesubput, cafmodeget, cafmodesubget, &
cafmodeallput, cafmodeallget, &
cafmodesimplesubget, cafmodesimplesubput, cafmodempisend)
count = 1
blksize = 1
stride = 1
case(cafmodemput, cafmodemsubput, cafmodesubmput, &
cafmodemget, cafmodemsubget, cafmodesubmget)
count = 1
blksize = maxndata
stride = maxndata
case(cafmodesmput, cafmodesmget)
count = 1
blksize = maxndata/2
stride = maxndata
case(cafmodesput, cafmodessubput, cafmodesget, cafmodessubget)
! set maximum stride
stride = p2pmaxstride
count = maxndata / stride
blksize = 1
case default
if (thisimage == 1) write(*,*) 'Invalid mode: ', cafmodetype
stop
end select
finished = .false.
do while (.not. finished)
ndata = count*blksize
nextent = blksize + (count-1)*stride
oktime = .false.
if (cafmodetype == cafmodeallput .or. cafmodetype == cafmodeallget) then
deallocate(x)
allocate(x(ndata)[*])
end if
do while (.not. oktime)
! Zero arrays for cleanliness
x(:) = 0.0
if (thisimage == image1) then
! Force initialisation of source array outside of timing loop
! even if we do not check values within it
call cafset(x, count, stride, blksize, 1.0d0, .true.)
end if
sync all
time1 = caftime()
do irep = 1, trialnrep
select case (cafmodetype)
case (cafmodeput, cafmodesubput, cafmodemput, cafmodemsubput, &
cafmodesubmput, &
cafmodesput, cafmodessubput, cafmodeallput, &
cafmodesimplesubput, cafmodesmput, cafmodempisend)
if (thisimage == image1) then
call cafset(x, count, stride, blksize, &
dble(irep), docheck)
select case (cafmodetype)
case (cafmodeput)
x(1:ndata)[image2] = x(1:ndata)
case (cafmodeallput)
x(:)[image2] = x(:)
case (cafmodesimplesubput)
call cafsimpleput(x, x, ndata, image2)
case (cafmodesubput)
call cafput(x, x, 1, ndata, image2)
case (cafmodemput)
do i = 1, count
x(1+(i-1)*blksize:i*blksize)[image2] = &
x(1+(i-1)*blksize:i*blksize)
end do
case (cafmodesmput)
do i = 1, count
x(1+2*(i-1)*blksize:(2*i-1)*blksize)[image2] = &
x(1+2*(i-1)*blksize:(2*i-1)*blksize)
end do
case (cafmodesubmput)
call cafmanyput(x, x, 1, count, blksize, image2)
case (cafmodemsubput)
do i = 1, count
call cafput(x, x, 1+(i-1)*blksize, blksize, image2)
end do
case (cafmodesput)
x(1:nextent:stride)[image2] = x(1:nextent:stride)
case (cafmodessubput)
call cafstridedput(x, x, 1, nextent, stride, image2)
case (cafmodempisend)
#ifdef MPI
call mpi_send(x, ndata, MPI_DOUBLE_PRECISION, image2-1, &
0, MPI_COMM_WORLD, ierr)
#else
write(*,*) 'cafpingpong: ERROR, MPI not enabled but cafmode = ', cafmodetype
stop
#endif
case default
write(*,*) 'Invalid put mode: ', cafmodetype
stop
end select
else if (thisimage == image2) then
select case (cafmodetype)
case (cafmodempisend)
#ifdef MPI
call mpi_recv(x, ndata, MPI_DOUBLE_PRECISION, image1-1, &
0, MPI_COMM_WORLD, status, ierr)
#else
write(*,*) 'cafpingpong: ERROR, MPI not enabled but cafmode = ', cafmodetype
stop
#endif
end select
end if
call cafdosync(cafsynctype, active, neighbours)
if (thisimage == image2) then
lcheck = cafcheck(x, count, stride, blksize, &
dble(irep), docheck)
call cafset(x, count, stride, blksize, &
dble(-irep), docheck)
select case (cafmodetype)
case (cafmodeput)
x(1:ndata)[image1] = x(1:ndata)
case (cafmodeallput)
x(:)[image1] = x(:)
case (cafmodesimplesubput)
call cafsimpleput(x, x, ndata, image1)
case (cafmodesubput)
call cafput(x, x, 1, ndata, image1)
case (cafmodemput)
do i = 1, count
x(1+(i-1)*blksize:i*blksize)[image1] = &
x(1+(i-1)*blksize:i*blksize)
end do
case (cafmodesmput)
do i = 1, count
x(1+2*(i-1)*blksize:(2*i-1)*blksize)[image1] = &
x(1+2*(i-1)*blksize:(2*i-1)*blksize)
end do
case (cafmodesubmput)
call cafmanyput(x, x, 1, count, blksize, image1)
case (cafmodemsubput)
do i = 1, count
call cafput(x, x, 1+(i-1)*blksize, blksize, image1)
end do
case (cafmodesput)
x(1:nextent:stride)[image1] = x(1:nextent:stride)
case (cafmodessubput)
call cafstridedput(x, x, 1, nextent, stride, image1)
case (cafmodempisend)
#ifdef MPI
call mpi_send(x, ndata, MPI_DOUBLE_PRECISION, image1-1, &
0, MPI_COMM_WORLD, ierr)
#else
write(*,*) 'cafpingpong: ERROR, MPI not enabled but cafmode = ', cafmodetype
stop
#endif
case default
write(*,*) 'Invalid put mode: ', cafmodetype
stop
end select
else if (thisimage == image1) then
select case (cafmodetype)
case (cafmodempisend)
#ifdef MPI
call mpi_recv(x, ndata, MPI_DOUBLE_PRECISION, image2-1, &
0, MPI_COMM_WORLD, status, ierr)
#else
write(*,*) 'cafpingpong: ERROR, MPI not enabled but cafmode = ', cafmodetype
stop
#endif
end select
end if
if (docheck) then
gcheck = gand(lcheck)
end if
if (gcheck .eqv. .false.) then
if (thisimage == 1) then
write(*,*) 'ERROR: put ping failed to validate'
write(*,*) 'ERROR: cnt,blk,str,dat,ext,irp,nrp = ', &
count, blksize, stride, ndata, nextent, irep, nrep
end if
exit
end if
call cafdosync(cafsynctype, active, neighbours)
if (thisimage == image1) then
lcheck = cafcheck(x, count, stride, blksize, &
dble(-irep), docheck)
end if
if (docheck) then
gcheck = gand(lcheck)
end if
if (gcheck .eqv. .false.) then
if (thisimage == 1) then
write(*,*) 'ERROR: put pong failed to validate'
write(*,*) 'ERROR: cnt, blk, str, dat, ext, rep = ', &
count, blksize, stride, ndata, nextent, nrep
end if
exit
end if
! Get cases
case (cafmodeget, cafmodesubget, cafmodemget, cafmodemsubget, &
cafmodesubmget, &
cafmodesget, cafmodessubget, cafmodeallget, &
cafmodesimplesubget, cafmodesmget)
if (thisimage == image2) then
select case (cafmodetype)
case (cafmodeget)
x(1:ndata) = x(1:ndata)[image1]
case (cafmodeallget)
x(:) = x(:)[image1]
case (cafmodesimplesubget)
call cafsimpleget(x, x, ndata, image1)
case (cafmodesubget)
call cafget(x, x, 1, ndata, image1)
case (cafmodemget)
do i = 1, count
x(1+(i-1)*blksize:i*blksize) = &
x(1+(i-1)*blksize:i*blksize)[image1]
end do
case (cafmodesget)
x(1:nextent:stride) = x(1:nextent:stride)[image1]
case (cafmodesmget)
do i = 1, count
x(1+2*(i-1)*blksize:(2*i-1)*blksize) = &
x(1+2*(i-1)*blksize:(2*i-1)*blksize)[image1]
end do
case (cafmodesubmget)
call cafmanyget(x, x, 1, count, blksize, image1)
case (cafmodemsubget)
do i = 1, count
call cafget(x, x, 1+(i-1)*blksize, blksize, image1)
end do
case (cafmodessubget)
call cafstridedget(x, x, 1, nextent, stride, image1)
case default
write(*,*) 'Invalid get mode: ', cafmodetype
stop
end select
lcheck = cafcheck(x, count, stride, blksize, &
dble(irep), docheck)
call cafset(x, count, stride, blksize, &
dble(-irep), docheck)
end if
if (docheck) then
gcheck = gand(lcheck)
end if
if (gcheck .eqv. .false.) then
if (thisimage == 1) then
write(*,*) 'ERROR: get ping failed to validate'
write(*,*) 'ERROR: cnt,blk,str,dat,ext,irp,nrp = ', &
count, blksize, stride, ndata, nextent, irep, nrep
end if
exit
end if
call cafdosync(cafsynctype, active, neighbours)
if (thisimage == image1) then
select case (cafmodetype)
case (cafmodeget)
x(1:ndata) = x(1:ndata)[image2]
case (cafmodeallget)
x(:) = x(:)[image2]
case (cafmodesimplesubget)
call cafsimpleget(x, x, ndata, image2)
case (cafmodesubget)
call cafget(x, x, 1, ndata, image2)
case (cafmodemget)
do i = 1, count
x(1+(i-1)*blksize:i*blksize) = &
x(1+(i-1)*blksize:i*blksize)[image2]
end do
case (cafmodesubmget)
call cafmanyget(x, x, 1, count, blksize, image2)
case (cafmodemsubget)
do i = 1, count
call cafget(x, x, 1+(i-1)*blksize, blksize, image2)
end do
case (cafmodesget)
x(1:nextent:stride) = x(1:nextent:stride)[image2]
case (cafmodesmget)
do i = 1, count
x(1+2*(i-1)*blksize:(2*i-1)*blksize) = &
x(1+2*(i-1)*blksize:(2*i-1)*blksize)[image2]
end do
case (cafmodessubget)
call cafstridedget(x, x, 1, nextent, stride, image2)
case default
write(*,*) 'Invalid get mode: ', cafmodetype
stop
end select
lcheck = cafcheck(x, count, stride, blksize, &
dble(-irep), docheck)
call cafset(x, count, stride, blksize, &
dble(irep+1), docheck)
end if
if (docheck) then
gcheck = gand(lcheck)
end if
if (gcheck .eqv. .false.) then
if (thisimage == 1) then
write(*,*) 'ERROR: get pong failed to validate'
write(*,*) 'ERROR: cnt,blk,str,dat,ext,irp,nrp = ', &
count, blksize, stride, ndata, nextent, irep, nrep
end if
exit
end if
call cafdosync(cafsynctype, active, neighbours)
end select
end do
sync all
time2 = caftime()
time = time2 - time1
! Broadcast time from image 1
call dbcast(time, 1)
nrep = trialnrep
oktime = cafchecktime(trialnrep, time, targettime)
if (gcheck .eqv. .false.) then
exit
end if
end do
if (thisimage == 1) then
if (gcheck) then
write(*,fmt='(5(i7, 1x), i6, 1x, 2(g10.3, 1x), g11.4)') &
count, blksize, stride, ndata, nextent, nrep, &
time, time/dble(2*nrep), &
(2.0*dble(nrep)*dble(ndata)*dble(dblesize)) /(dble(1024*1024)*time)
else
write(*,*)
write(*,*) 'Verification failed: exiting this test'
write(*,*)
end if
end if
if (gcheck .eqv. .false.) then
finished = .true.
exit
end if
select case (cafmodetype)
case(cafmodeput, cafmodesubput, cafmodeget, cafmodesubget, &
cafmodeallput, cafmodeallget, &
cafmodesimplesubput, cafmodesimplesubget, cafmodempisend)
blksize = 2*blksize
stride = 2*stride
if (blksize > maxndata) finished = .true.
case(cafmodemput, cafmodemsubput, cafmodesubmput, &
cafmodemget, cafmodemsubget, cafmodesubmget)
count = 2*count
blksize = blksize/2
stride = stride/2
if (count > maxndata) finished = .true.
case(cafmodesmput, cafmodesmget)
count = 2*count
blksize = blksize/2
stride = stride/2
if (stride < 2) finished = .true.
case(cafmodesput, cafmodessubput, cafmodesget, cafmodessubget)
stride = stride / 2
if (stride < 1) finished = .true.
case default
if (thisimage == 1) write(*,*) 'Invalid mode: ', cafmodetype
stop
end select
end do
deallocate(x)
if (thisimage == 1) then
write(*,*)
if (docheck) then
if (gcheck) then
write(*,*) 'All results validated'
write(*,*)
else
write(*,*)
write(*,*) 'ERROR: validation failed'
write(*,*)
end if
end if
end if
end subroutine cafpingpong
subroutine cafoverlap(image1, image2, cafsynctype, maxndata)
use cafcore
use cafclock
implicit none
integer :: maxndata, ndata
double precision, allocatable, dimension(:), codimension[:] :: x
double precision :: time1, time2, puttime, dltime
integer :: irep, nputrep, ndelayrep, iloop
integer :: image1, image2, cafsynctype
double precision :: puttargettime, dltargettime
logical, save :: oktime[*]
integer, save :: trialnrep[*]
integer, dimension(1) :: neighbours
logical :: active
! !DIR$ INLINENEVER delay
if (thisimage == 1) then
write(*,*) "image1, image2 = ", image1, image2
write(*,*) "benchmarking: overlap"
write(*,*) "synchronisation: ", cafsyncname(cafsynctype)
write(*,*) "maxndata: ", maxndata
end if
allocate(x(maxndata)[*])
if (cafsynctype /= cafsyncall) then
active = .false.
else
active = .true.
end if
neighbours = 0
if (thisimage == image1) then
active = .true.
neighbours(1) = image2
end if
if (thisimage == image2) then
active = .true.
neighbours(1) = image1
end if
x(:) = dble(thisimage)
puttargettime = 0.5
puttime = 0.0
trialnrep = 1
oktime = .false.
do while (.not. oktime)
sync all
if (thisimage == image1) then
time1 = caftime()
do irep = 1, trialnrep
x(:)[image2] = x(:)
call cafdosync(cafsynctype, active, neighbours)
end do
time2 = caftime()
puttime = time2 - time1
oktime = cafchecktime(trialnrep, puttime, puttargettime)
sync all
else
do irep = 1, trialnrep
call cafdosync(cafsynctype, active, neighbours)
! Do something with data on the target
if (thisimage == image2) then
x(:) = x(:) + 1.0
if (x(1) < 0.0) write(*,*) 'Tum te tum'
end if
end do
! Make sure all images get flag from image 1
sync all
oktime = oktime[1]
trialnrep = trialnrep[1]
end if
end do
nputrep = trialnrep
write(*,*) 'image: ', thisimage, ', nputrep, puttime = ', nputrep, puttime
! Now we need to match this with a delay
dltargettime = puttargettime / dble(nputrep)
trialnrep = 1
oktime = .false.
do while (.not. oktime)
time1 = caftime()
call delay(trialnrep)
time2 = caftime()
dltime = time2 - time1
oktime = cafchecktime(trialnrep, dltime, dltargettime)
end do
write(*,*) 'image, trialnrep, dltime, nputrep*dltime = ', &
thisimage, trialnrep, dltime, dble(nputrep)*dltime
trialnrep = dble(trialnrep)*puttime/(dble(nputrep)*dltime)
sync all
ndelayrep = trialnrep[1]
sync all
! Now time for real
time1 = caftime()
do irep = 1, nputrep
call delay(ndelayrep)
end do
time2 = caftime()
dltime = time2 - time1
write(*,*) 'image, ndelayrep, nputrep*dltime = ', &
thisimage, ndelayrep, dltime
! OK, now we time overlapped and non-overlapped stuff
! Probably best to have the targets doing work as well to better
! simulate a real case
do iloop = 1, 4
if (thisimage == 1) then
write(*,*) 'WITH magic directive'
if ((iloop-1)/2 .eq. 0) write(*,*) 'Put'
if ((iloop-1)/2 .eq. 1) write(*,*) 'Get'
if (mod(iloop-1,2) .eq. 0) write(*,*) 'No overlap'
if (mod(iloop-1,2) .eq. 1) write(*,*) 'With overlap'
write(*,*)
end if
sync all
if (thisimage == image1) then
time1 = caftime()
do irep = 1, nputrep
if ((iloop-1)/2 .eq. 0) then
! Directive to help overlaping
!DIR$ PGAS DEFER_SYNC
x(:)[image2] = x(:)
end if
if ((iloop-1)/2 .eq. 1) then
! Directive to help overlaping
!DIR$ PGAS DEFER_SYNC
x(:) = x(:)[image2]
end if
if (mod(iloop-1,2) .eq. 0) then
call cafdosync(cafsynctype, active, neighbours)
end if
call delay(ndelayrep)
if (mod(iloop-1,2) .eq. 1) then
call cafdosync(cafsynctype, active, neighbours)
end if
if ((iloop-1)/2 .eq. 1) then
! Get case - do something with data on the target
x(:) = x(:) + 1.0
if (x(1) < 0.0) write(*,*) 'Tum te tum'
end if
end do
time2 = caftime()
puttime = time2 - time1
write(*,*) 'iloop, image, time = ', iloop, thisimage, puttime
else
do irep = 1, nputrep
call delay(ndelayrep)
call cafdosync(cafsynctype, active, neighbours)
! Do something with data on the target for put case
if ((iloop-1)/2 .eq. 0) then
if (thisimage == image2) then
x(1) = x(1) + 1.0
if (x(1) < 0.0) write(*,*) 'Tum te tum'
end if
end if
end do
end if
end do
deallocate(x)
end subroutine cafoverlap
end module cafpt2pt