You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
389 lines
14 KiB
Fortran
389 lines
14 KiB
Fortran
!!$
|
|
!!$ Parallel Sparse BLAS version 2.2
|
|
!!$ (C) Copyright 2006/2007/2008
|
|
!!$ Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari University of Rome Tor Vergata
|
|
!!$
|
|
!!$ Redistribution and use in source and binary forms, with or without
|
|
!!$ modification, are permitted provided that the following conditions
|
|
!!$ are met:
|
|
!!$ 1. Redistributions of source code must retain the above copyright
|
|
!!$ notice, this list of conditions and the following disclaimer.
|
|
!!$ 2. Redistributions in binary form must reproduce the above copyright
|
|
!!$ notice, this list of conditions, and the following disclaimer in the
|
|
!!$ documentation and/or other materials provided with the distribution.
|
|
!!$ 3. The name of the PSBLAS group or the names of its contributors may
|
|
!!$ not be used to endorse or promote products derived from this
|
|
!!$ software without specific written permission.
|
|
!!$
|
|
!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
|
|
!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
!!$ POSSIBILITY OF SUCH DAMAGE.
|
|
!!$
|
|
!!$
|
|
!
|
|
! File: psb_covrl.f90
|
|
!
|
|
! Subroutine: psb_covrlm
|
|
! This subroutine performs the exchange of the overlap elements in a
|
|
! distributed dense matrix between all the processes.
|
|
!
|
|
! Arguments:
|
|
! x(:,:) - complex The local part of the dense matrix.
|
|
! desc_a - type(psb_desc_type). The communication descriptor.
|
|
! info - integer. Return code.
|
|
! jx - integer(optional). The starting column of the global matrix
|
|
! ik - integer(optional). The number of columns to gather.
|
|
! work - real(optional). A work area.
|
|
! update - integer(optional). Type of update:
|
|
! psb_none_ do nothing
|
|
! psb_sum_ sum of overlaps
|
|
! psb_avg_ average of overlaps
|
|
! mode - integer(optional). Choose the algorithm for data exchange:
|
|
! this is chosen through bit fields.
|
|
! - swap_mpi = iand(flag,psb_swap_mpi_) /= 0
|
|
! - swap_sync = iand(flag,psb_swap_sync_) /= 0
|
|
! - swap_send = iand(flag,psb_swap_send_) /= 0
|
|
! - swap_recv = iand(flag,psb_swap_recv_) /= 0
|
|
! - if (swap_mpi): use underlying MPI_ALLTOALLV.
|
|
! - if (swap_sync): use PSB_SND and PSB_RCV in
|
|
! synchronized pairs
|
|
! - if (swap_send .and. swap_recv): use mpi_irecv
|
|
! and mpi_send
|
|
! - if (swap_send): use psb_snd (but need another
|
|
! call with swap_recv to complete)
|
|
! - if (swap_recv): use psb_rcv (completing a
|
|
! previous call with swap_send)
|
|
!
|
|
!
|
|
subroutine psb_covrlm(x,desc_a,info,jx,ik,work,update,mode)
|
|
use psb_sparse_mod, psb_protect_name => psb_covrlm
|
|
use psi_mod
|
|
implicit none
|
|
|
|
complex(psb_spk_), intent(inout), target :: x(:,:)
|
|
type(psb_desc_type), intent(in) :: desc_a
|
|
integer, intent(out) :: info
|
|
complex(psb_spk_), optional, target, intent(inout) :: work(:)
|
|
integer, intent(in), optional :: update,jx,ik,mode
|
|
|
|
! locals
|
|
integer :: ictxt, np, me, &
|
|
& err_act, m, n, iix, jjx, ix, ijx, nrow, ncol, k, maxk, update_,&
|
|
& mode_, err, liwork
|
|
complex(psb_spk_),pointer :: iwork(:), xp(:,:)
|
|
logical :: do_swap
|
|
character(len=20) :: name, ch_err
|
|
logical :: aliw
|
|
|
|
name='psb_covrlm'
|
|
if(psb_get_errstatus() /= 0) return
|
|
info=psb_success_
|
|
call psb_erractionsave(err_act)
|
|
|
|
ictxt=psb_cd_get_context(desc_a)
|
|
|
|
! check on blacs grid
|
|
call psb_info(ictxt, me, np)
|
|
if (np == -1) then
|
|
info = psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
ix = 1
|
|
if (present(jx)) then
|
|
ijx = jx
|
|
else
|
|
ijx = 1
|
|
endif
|
|
|
|
m = psb_cd_get_global_rows(desc_a)
|
|
n = psb_cd_get_global_cols(desc_a)
|
|
nrow = psb_cd_get_local_rows(desc_a)
|
|
ncol = psb_cd_get_local_cols(desc_a)
|
|
|
|
maxk=size(x,2)-ijx+1
|
|
|
|
if(present(ik)) then
|
|
if(ik > maxk) then
|
|
k=maxk
|
|
else
|
|
k=ik
|
|
end if
|
|
else
|
|
k = maxk
|
|
end if
|
|
|
|
if (present(update)) then
|
|
update_ = update
|
|
else
|
|
update_ = psb_avg_
|
|
endif
|
|
|
|
if (present(mode)) then
|
|
mode_ = mode
|
|
else
|
|
mode_ = IOR(psb_swap_send_,psb_swap_recv_)
|
|
endif
|
|
do_swap = (mode_ /= 0)
|
|
|
|
! check vector correctness
|
|
call psb_chkvect(m,1,size(x,1),ix,ijx,desc_a,info,iix,jjx)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_chkvect'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
end if
|
|
|
|
if (iix /= 1) then
|
|
info=psb_err_ix_n1_iy_n1_unsupported_
|
|
call psb_errpush(info,name)
|
|
end if
|
|
|
|
err=info
|
|
call psb_errcomm(ictxt,err)
|
|
if(err /= 0) goto 9999
|
|
|
|
! check for presence/size of a work area
|
|
liwork=ncol
|
|
if (present(work)) then
|
|
if(size(work) >= liwork) then
|
|
aliw=.false.
|
|
else
|
|
aliw=.true.
|
|
end if
|
|
else
|
|
aliw=.true.
|
|
end if
|
|
if (aliw) then
|
|
allocate(iwork(liwork),stat=info)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
call psb_errpush(info,name,a_err='Allocate')
|
|
goto 9999
|
|
end if
|
|
else
|
|
iwork => work
|
|
end if
|
|
! exchange overlap elements
|
|
if(do_swap) then
|
|
xp => x(iix:size(x,1),jjx:jjx+k-1)
|
|
call psi_swapdata(mode_,k,cone,xp,&
|
|
& desc_a,iwork,info,data=psb_comm_ovr_)
|
|
end if
|
|
if (info == psb_success_) call psi_ovrl_upd(xp,desc_a,update_,info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err='Inner updates')
|
|
goto 9999
|
|
end if
|
|
|
|
if (aliw) deallocate(iwork)
|
|
nullify(iwork)
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 continue
|
|
call psb_erractionrestore(err_act)
|
|
|
|
if (err_act == psb_act_abort_) then
|
|
call psb_error(ictxt)
|
|
return
|
|
end if
|
|
return
|
|
end subroutine psb_covrlm
|
|
!!$
|
|
!!$ Parallel Sparse BLAS version 2.2
|
|
!!$ (C) Copyright 2006/2007/2008
|
|
!!$ Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari University of Rome Tor Vergata
|
|
!!$
|
|
!!$ Redistribution and use in source and binary forms, with or without
|
|
!!$ modification, are permitted provided that the following conditions
|
|
!!$ are met:
|
|
!!$ 1. Redistributions of source code must retain the above copyright
|
|
!!$ notice, this list of conditions and the following disclaimer.
|
|
!!$ 2. Redistributions in binary form must reproduce the above copyright
|
|
!!$ notice, this list of conditions, and the following disclaimer in the
|
|
!!$ documentation and/or other materials provided with the distribution.
|
|
!!$ 3. The name of the PSBLAS group or the names of its contributors may
|
|
!!$ not be used to endorse or promote products derived from this
|
|
!!$ software without specific written permission.
|
|
!!$
|
|
!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
|
|
!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
!!$ POSSIBILITY OF SUCH DAMAGE.
|
|
!!$
|
|
!!$
|
|
!
|
|
! Subroutine: psb_covrlv
|
|
! This subroutine performs the exchange of the overlap elements in a
|
|
! distributed dense vector between all the processes.
|
|
!
|
|
! Arguments:
|
|
! x(:) - complex The local part of the dense vector.
|
|
! desc_a - type(psb_desc_type). The communication descriptor.
|
|
! info - integer. Return code.
|
|
! work - real(optional). A work area.
|
|
! update - integer(optional). Type of update:
|
|
! psb_none_ do nothing
|
|
! psb_sum_ sum of overlaps
|
|
! psb_avg_ average of overlaps
|
|
! mode - integer(optional). Choose the algorithm for data exchange:
|
|
! this is chosen through bit fields.
|
|
! - swap_mpi = iand(flag,psb_swap_mpi_) /= 0
|
|
! - swap_sync = iand(flag,psb_swap_sync_) /= 0
|
|
! - swap_send = iand(flag,psb_swap_send_) /= 0
|
|
! - swap_recv = iand(flag,psb_swap_recv_) /= 0
|
|
! - if (swap_mpi): use underlying MPI_ALLTOALLV.
|
|
! - if (swap_sync): use PSB_SND and PSB_RCV in
|
|
! synchronized pairs
|
|
! - if (swap_send .and. swap_recv): use mpi_irecv
|
|
! and mpi_send
|
|
! - if (swap_send): use psb_snd (but need another
|
|
! call with swap_recv to complete)
|
|
! - if (swap_recv): use psb_rcv (completing a
|
|
! previous call with swap_send)
|
|
!
|
|
!
|
|
subroutine psb_covrlv(x,desc_a,info,work,update,mode)
|
|
use psb_sparse_mod, psb_protect_name => psb_covrlv
|
|
use psi_mod
|
|
implicit none
|
|
|
|
complex(psb_spk_), intent(inout), target :: x(:)
|
|
type(psb_desc_type), intent(in) :: desc_a
|
|
integer, intent(out) :: info
|
|
complex(psb_spk_), optional, target, intent(inout) :: work(:)
|
|
integer, intent(in), optional :: update,mode
|
|
|
|
! locals
|
|
integer :: ictxt, np, me, &
|
|
& err_act, m, n, iix, jjx, ix, ijx, nrow, ncol, k, update_,&
|
|
& mode_, err, liwork
|
|
complex(psb_spk_),pointer :: iwork(:)
|
|
logical :: do_swap
|
|
character(len=20) :: name, ch_err
|
|
logical :: aliw
|
|
|
|
name='psb_covrlv'
|
|
if(psb_get_errstatus() /= 0) return
|
|
info=psb_success_
|
|
call psb_erractionsave(err_act)
|
|
|
|
ictxt=psb_cd_get_context(desc_a)
|
|
|
|
! check on blacs grid
|
|
call psb_info(ictxt, me, np)
|
|
if (np == -1) then
|
|
info = psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
ix = 1
|
|
ijx = 1
|
|
|
|
m = psb_cd_get_global_rows(desc_a)
|
|
n = psb_cd_get_global_cols(desc_a)
|
|
nrow = psb_cd_get_local_rows(desc_a)
|
|
ncol = psb_cd_get_local_cols(desc_a)
|
|
|
|
k = 1
|
|
|
|
if (present(update)) then
|
|
update_ = update
|
|
else
|
|
update_ = psb_avg_
|
|
endif
|
|
|
|
if (present(mode)) then
|
|
mode_ = mode
|
|
else
|
|
mode_ = IOR(psb_swap_send_,psb_swap_recv_)
|
|
endif
|
|
do_swap = (mode_ /= 0)
|
|
|
|
! check vector correctness
|
|
call psb_chkvect(m,1,size(x),ix,ijx,desc_a,info,iix,jjx)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_chkvect'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
end if
|
|
|
|
if (iix /= 1) then
|
|
info=psb_err_ix_n1_iy_n1_unsupported_
|
|
call psb_errpush(info,name)
|
|
end if
|
|
|
|
err=info
|
|
call psb_errcomm(ictxt,err)
|
|
if(err /= 0) goto 9999
|
|
|
|
! check for presence/size of a work area
|
|
liwork=ncol
|
|
if (present(work)) then
|
|
if(size(work) >= liwork) then
|
|
aliw=.false.
|
|
else
|
|
aliw=.true.
|
|
end if
|
|
else
|
|
aliw=.true.
|
|
end if
|
|
if (aliw) then
|
|
allocate(iwork(liwork),stat=info)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
call psb_errpush(info,name,a_err='Allocate')
|
|
goto 9999
|
|
end if
|
|
else
|
|
iwork => work
|
|
end if
|
|
|
|
! exchange overlap elements
|
|
if (do_swap) then
|
|
call psi_swapdata(mode_,cone,x(:),&
|
|
& desc_a,iwork,info,data=psb_comm_ovr_)
|
|
end if
|
|
if (info == psb_success_) call psi_ovrl_upd(x,desc_a,update_,info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err='Inner updates')
|
|
goto 9999
|
|
end if
|
|
|
|
if (aliw) deallocate(iwork)
|
|
nullify(iwork)
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 continue
|
|
call psb_erractionrestore(err_act)
|
|
|
|
if (err_act == psb_act_abort_) then
|
|
call psb_error(ictxt)
|
|
return
|
|
end if
|
|
return
|
|
end subroutine psb_covrlv
|