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.
381 lines
12 KiB
Fortran
381 lines
12 KiB
Fortran
!
|
|
! Parallel Sparse BLAS version 3.5
|
|
! (C) Copyright 2006-2018
|
|
! Salvatore Filippone
|
|
! Alfredo Buttari
|
|
!
|
|
! 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_zhalo.f90
|
|
!
|
|
! Subroutine: psb_zhalom
|
|
! This subroutine performs the exchange of the halo elements in a
|
|
! distributed dense matrix between all the processes.
|
|
!
|
|
! Arguments:
|
|
! x - complex,dimension(:,:). 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 - complex(optional). Work area.
|
|
! tran - character(optional). Transpose exchange.
|
|
! mode - integer(optional). Communication mode (see Swapdata)
|
|
! data - integer Which index list in desc_a should be used
|
|
! to retrieve rows, default psb_comm_halo_
|
|
! psb_comm_halo_ use halo_index
|
|
! psb_comm_ext_ use ext_index
|
|
! psb_comm_ovrl_ use ovrl_index
|
|
! psb_comm_mov_ use ovr_mst_idx
|
|
!
|
|
!
|
|
subroutine psb_zhalom(x,desc_a,info,jx,ik,work,tran,mode,data)
|
|
use psb_base_mod, psb_protect_name => psb_zhalom
|
|
use psi_mod
|
|
implicit none
|
|
|
|
complex(psb_dpk_), intent(inout), target :: x(:,:)
|
|
type(psb_desc_type), intent(in) :: desc_a
|
|
integer(psb_ipk_), intent(out) :: info
|
|
complex(psb_dpk_), optional, target, intent(inout) :: work(:)
|
|
integer(psb_ipk_), intent(in), optional :: mode,jx,ik,data
|
|
character, intent(in), optional :: tran
|
|
|
|
! locals
|
|
integer(psb_mpk_) :: ictxt, np, me
|
|
integer(psb_ipk_) :: err_act, iix, jjx, k, maxk, nrow, imode, i,&
|
|
& liwork,data_, ldx
|
|
integer(psb_lpk_) :: m, n, ix, ijx
|
|
complex(psb_dpk_),pointer :: iwork(:), xp(:,:)
|
|
character :: tran_
|
|
character(len=20) :: name, ch_err
|
|
logical :: aliw
|
|
|
|
name='psb_zhalom'
|
|
info=psb_success_
|
|
call psb_erractionsave(err_act)
|
|
if (psb_errstatus_fatal()) then
|
|
info = psb_err_internal_error_ ; goto 9999
|
|
end if
|
|
|
|
ictxt=desc_a%get_context()
|
|
|
|
! 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 = desc_a%get_global_rows()
|
|
n = desc_a%get_global_cols()
|
|
nrow = desc_a%get_local_rows()
|
|
|
|
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(tran)) then
|
|
tran_ = psb_toupper(tran)
|
|
else
|
|
tran_ = 'N'
|
|
endif
|
|
if (present(mode)) then
|
|
imode = mode
|
|
else
|
|
imode = IOR(psb_swap_send_,psb_swap_recv_)
|
|
endif
|
|
|
|
if (present(data)) then
|
|
data_ = data
|
|
else
|
|
data_ = psb_comm_halo_
|
|
endif
|
|
ldx = size(x,1)
|
|
! check vector correctness
|
|
call psb_chkvect(m,lone,ldx,ix,ijx,desc_a,info,iix,jjx,check_halo=.true.)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_ ; ch_err='psb_chkvect'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
liwork=nrow
|
|
if (present(work)) then
|
|
if(size(work) >= liwork) then
|
|
aliw=.false.
|
|
iwork => work
|
|
else
|
|
aliw=.true.
|
|
allocate(iwork(liwork),stat=info)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_realloc'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
end if
|
|
else
|
|
aliw=.true.
|
|
allocate(iwork(liwork),stat=info)
|
|
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_realloc'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
! exchange halo elements
|
|
xp => x(iix:size(x,1),jjx:jjx+k-1)
|
|
if(tran_ == 'N') then
|
|
call psi_swapdata(imode,k,zzero,xp,&
|
|
& desc_a,iwork,info,data=data_)
|
|
else if((tran_ == 'T').or.(tran_ == 'C')) then
|
|
call psi_swaptran(imode,k,zone,xp,&
|
|
&desc_a,iwork,info)
|
|
else
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='invalid tran')
|
|
goto 9999
|
|
end if
|
|
|
|
if(info /= psb_success_) then
|
|
ch_err='PSI_cswapdata'
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
if (aliw) deallocate(iwork)
|
|
nullify(iwork)
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ione*ictxt,err_act)
|
|
|
|
return
|
|
end subroutine psb_zhalom
|
|
|
|
|
|
|
|
|
|
!!$
|
|
!!$ Parallel Sparse BLAS version 3.5
|
|
!!$ (C) Copyright 2006-2018
|
|
!!$ Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari
|
|
!!$
|
|
!!$ 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_zhalov
|
|
! This subroutine performs the exchange of the halo elements in a
|
|
! distributed dense vector between all the processes.
|
|
!
|
|
! Arguments:
|
|
! x - real,dimension(:). The local part of the dense vector.
|
|
! 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 - complex(optional). Work area.
|
|
! tran - character(optional). Transpose exchange.
|
|
! mode - integer(optional). Communication mode (see Swapdata)
|
|
! data - integer Which index list in desc_a should be used
|
|
! to retrieve rows, default psb_comm_halo_
|
|
! psb_comm_halo_ use halo_index
|
|
! psb_comm_ext_ use ext_index
|
|
! psb_comm_ovrl_ use ovrl_index
|
|
! psb_comm_mov_ use ovr_mst_idx
|
|
!
|
|
!
|
|
subroutine psb_zhalov(x,desc_a,info,work,tran,mode,data)
|
|
use psb_base_mod, psb_protect_name => psb_zhalov
|
|
use psi_mod
|
|
implicit none
|
|
|
|
complex(psb_dpk_), intent(inout) :: x(:)
|
|
type(psb_desc_type), intent(in) :: desc_a
|
|
integer(psb_ipk_), intent(out) :: info
|
|
complex(psb_dpk_), target, optional, intent(inout) :: work(:)
|
|
integer(psb_ipk_), intent(in), optional :: mode,data
|
|
character, intent(in), optional :: tran
|
|
|
|
! locals
|
|
integer(psb_mpk_) :: ictxt, np, me
|
|
integer(psb_ipk_) :: err_act, ldx, iix, jjx, nrow, imode, liwork,data_
|
|
integer(psb_lpk_) :: m, n, ix, ijx
|
|
complex(psb_dpk_),pointer :: iwork(:)
|
|
character :: tran_
|
|
character(len=20) :: name, ch_err
|
|
logical :: aliw
|
|
|
|
name='psb_zhalov'
|
|
info=psb_success_
|
|
call psb_erractionsave(err_act)
|
|
if (psb_errstatus_fatal()) then
|
|
info = psb_err_internal_error_ ; goto 9999
|
|
end if
|
|
|
|
ictxt=desc_a%get_context()
|
|
|
|
! 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 = desc_a%get_global_rows()
|
|
n = desc_a%get_global_cols()
|
|
nrow = desc_a%get_local_rows()
|
|
|
|
if (present(tran)) then
|
|
tran_ = psb_toupper(tran)
|
|
else
|
|
tran_ = 'N'
|
|
endif
|
|
if (present(data)) then
|
|
data_ = data
|
|
else
|
|
data_ = psb_comm_halo_
|
|
endif
|
|
if (present(mode)) then
|
|
imode = mode
|
|
else
|
|
imode = IOR(psb_swap_send_,psb_swap_recv_)
|
|
endif
|
|
ldx = size(x,1)
|
|
! check vector correctness
|
|
call psb_chkvect(m,lone,ldx,ix,ijx,desc_a,info,iix,jjx,check_halo=.true.)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_ ; ch_err='psb_chkvect'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
liwork=nrow
|
|
if (present(work)) then
|
|
if(size(work) >= liwork) then
|
|
aliw=.false.
|
|
iwork => work
|
|
else
|
|
aliw=.true.
|
|
allocate(iwork(liwork),stat=info)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_realloc'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
end if
|
|
else
|
|
aliw=.true.
|
|
allocate(iwork(liwork),stat=info)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_realloc'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
! exchange halo elements
|
|
if(tran_ == 'N') then
|
|
call psi_swapdata(imode,zzero,x(iix:size(x)),&
|
|
& desc_a,iwork,info,data=data_)
|
|
else if((tran_ == 'T').or.(tran_ == 'C')) then
|
|
call psi_swaptran(imode,zone,x(iix:size(x)),&
|
|
& desc_a,iwork,info)
|
|
else
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='invalid tran')
|
|
goto 9999
|
|
end if
|
|
|
|
if(info /= psb_success_) then
|
|
ch_err='PSI_swapdata'
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
if (aliw) deallocate(iwork)
|
|
nullify(iwork)
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ione*ictxt,err_act)
|
|
|
|
return
|
|
end subroutine psb_zhalov
|
|
|