|
|
|
|
!!$
|
|
|
|
|
!!$ Parallel Sparse BLAS v2.0
|
|
|
|
|
!!$ (C) Copyright 2006 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_dhalo.f90
|
|
|
|
|
!
|
|
|
|
|
! Subroutine: psb_dhalom
|
|
|
|
|
! This subroutine performs the exchange of the halo elements in a
|
|
|
|
|
! distributed dense matrix between all the processes.
|
|
|
|
|
!
|
|
|
|
|
! Arguments:
|
|
|
|
|
! x - real,dimension(:,:). The local part of the dense matrix.
|
|
|
|
|
! desc_a - type(psb_desc_type). The communication descriptor.
|
|
|
|
|
! info - integer. return code.
|
|
|
|
|
! alpha - real(optional). Scale factor.
|
|
|
|
|
! jx - integer(optional). The starting column of the global matrix.
|
|
|
|
|
! ik - integer(optional). The number of columns to gather.
|
|
|
|
|
! work - real(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
|
|
|
|
|
!
|
|
|
|
|
!
|
|
|
|
|
subroutine psb_dhalom(x,desc_a,info,alpha,jx,ik,work,tran,mode,data)
|
|
|
|
|
use psb_descriptor_type
|
|
|
|
|
use psb_const_mod
|
|
|
|
|
use psi_mod
|
|
|
|
|
use psb_check_mod
|
|
|
|
|
use psb_realloc_mod
|
|
|
|
|
use psb_error_mod
|
|
|
|
|
use psb_string_mod
|
|
|
|
|
use psb_penv_mod
|
|
|
|
|
implicit none
|
|
|
|
|
|
|
|
|
|
real(kind(1.d0)), intent(inout), target :: x(:,:)
|
|
|
|
|
type(psb_desc_type), intent(in) :: desc_a
|
|
|
|
|
integer, intent(out) :: info
|
|
|
|
|
real(kind(1.d0)), intent(in), optional :: alpha
|
|
|
|
|
real(kind(1.d0)), optional, target :: work(:)
|
|
|
|
|
integer, intent(in), optional :: mode,jx,ik,data
|
|
|
|
|
character, intent(in), optional :: tran
|
|
|
|
|
|
|
|
|
|
! locals
|
|
|
|
|
integer :: ictxt, np, me,&
|
|
|
|
|
& err_act, m, n, iix, jjx, ix, ijx, k, maxk, nrow, imode, i,&
|
|
|
|
|
& err, liwork,data_
|
|
|
|
|
real(kind(1.d0)),pointer :: iwork(:), xp(:,:)
|
|
|
|
|
character :: tran_
|
|
|
|
|
character(len=20) :: name, ch_err
|
|
|
|
|
logical :: aliw
|
|
|
|
|
|
|
|
|
|
name='psb_dhalom'
|
|
|
|
|
if(psb_get_errstatus().ne.0) return
|
|
|
|
|
info=0
|
|
|
|
|
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 = 2010
|
|
|
|
|
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)
|
|
|
|
|
|
|
|
|
|
maxk=size(x,2)-ijx+1
|
|
|
|
|
|
|
|
|
|
if(present(ik)) then
|
|
|
|
|
if(ik.gt.maxk) then
|
|
|
|
|
k=maxk
|
|
|
|
|
else
|
|
|
|
|
k=ik
|
|
|
|
|
end if
|
|
|
|
|
else
|
|
|
|
|
k = maxk
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
if (present(tran)) then
|
|
|
|
|
tran_ = 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
|
|
|
|
|
|
|
|
|
|
! check vector correctness
|
|
|
|
|
call psb_chkvect(m,1,size(x,1),ix,ijx,desc_a,info,iix,jjx)
|
|
|
|
|
if(info.ne.0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_chkvect'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
if (iix.ne.1) then
|
|
|
|
|
info=3040
|
|
|
|
|
call psb_errpush(info,name)
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
err=info
|
|
|
|
|
call psb_errcomm(ictxt,err)
|
|
|
|
|
if(err.ne.0) goto 9999
|
|
|
|
|
|
|
|
|
|
if(present(alpha)) then
|
|
|
|
|
if(alpha.ne.1.d0) then
|
|
|
|
|
do i=0, k-1
|
|
|
|
|
call dscal(nrow,alpha,x(1,jjx+i),1)
|
|
|
|
|
end do
|
|
|
|
|
end if
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
liwork=nrow
|
|
|
|
|
if (present(work)) then
|
|
|
|
|
if(size(work).ge.liwork) then
|
|
|
|
|
iwork => work
|
|
|
|
|
aliw=.false.
|
|
|
|
|
else
|
|
|
|
|
aliw=.true.
|
|
|
|
|
allocate(iwork(liwork),stat=info)
|
|
|
|
|
if(info.ne.0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_realloc'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
end if
|
|
|
|
|
else
|
|
|
|
|
aliw=.true.
|
|
|
|
|
!!$ write(0,*) 'halom ',liwork
|
|
|
|
|
allocate(iwork(liwork),stat=info)
|
|
|
|
|
if(info.ne.0) then
|
|
|
|
|
info=4010
|
|
|
|
|
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,dzero,xp,&
|
|
|
|
|
& desc_a,iwork,info,data=data_)
|
|
|
|
|
else if((tran_ == 'T').or.(tran_ == 'C')) then
|
|
|
|
|
call psi_swaptran(imode,k,done,xp,&
|
|
|
|
|
&desc_a,iwork,info)
|
|
|
|
|
else
|
|
|
|
|
info = 4001
|
|
|
|
|
call psb_errpush(info,name,a_err='invalid tran')
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
if(info.ne.0) then
|
|
|
|
|
ch_err='PSI_dSwapdata'
|
|
|
|
|
call psb_errpush(4010,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
if (aliw) deallocate(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_dhalom
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
!!$
|
|
|
|
|
!!$ Parallel Sparse BLAS v2.0
|
|
|
|
|
!!$ (C) Copyright 2006 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_dhalov
|
|
|
|
|
! 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
|
|
|
|
|
! alpha - real(optional). Scale factor.
|
|
|
|
|
! work - real(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
|
|
|
|
|
!
|
|
|
|
|
!
|
|
|
|
|
subroutine psb_dhalov(x,desc_a,info,alpha,work,tran,mode,data)
|
|
|
|
|
use psb_descriptor_type
|
|
|
|
|
use psb_const_mod
|
|
|
|
|
use psi_mod
|
|
|
|
|
use psb_check_mod
|
|
|
|
|
use psb_realloc_mod
|
|
|
|
|
use psb_error_mod
|
|
|
|
|
use psb_string_mod
|
|
|
|
|
use psb_penv_mod
|
|
|
|
|
implicit none
|
|
|
|
|
|
|
|
|
|
real(kind(1.d0)), intent(inout) :: x(:)
|
|
|
|
|
type(psb_desc_type), intent(in) :: desc_a
|
|
|
|
|
integer, intent(out) :: info
|
|
|
|
|
real(kind(1.d0)), intent(in), optional :: alpha
|
|
|
|
|
real(kind(1.d0)), target, optional :: work(:)
|
|
|
|
|
integer, intent(in), optional :: mode,data
|
|
|
|
|
character, intent(in), optional :: tran
|
|
|
|
|
|
|
|
|
|
! locals
|
|
|
|
|
integer :: ictxt, np, me,&
|
|
|
|
|
& err_act, m, n, iix, jjx, ix, ijx, nrow, imode,&
|
|
|
|
|
& err, liwork,data_
|
|
|
|
|
real(kind(1.d0)),pointer :: iwork(:)
|
|
|
|
|
character :: tran_
|
|
|
|
|
character(len=20) :: name, ch_err
|
|
|
|
|
logical :: aliw
|
|
|
|
|
|
|
|
|
|
name='psb_dhalov'
|
|
|
|
|
if(psb_get_errstatus().ne.0) return
|
|
|
|
|
info=0
|
|
|
|
|
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 = 2010
|
|
|
|
|
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)
|
|
|
|
|
|
|
|
|
|
if (present(tran)) then
|
|
|
|
|
tran_ = 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
|
|
|
|
|
|
|
|
|
|
! check vector correctness
|
|
|
|
|
call psb_chkvect(m,1,size(x,1),ix,ijx,desc_a,info,iix,jjx)
|
|
|
|
|
if(info.ne.0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_chkvect'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
if (iix.ne.1) then
|
|
|
|
|
info=3040
|
|
|
|
|
call psb_errpush(info,name)
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
err=info
|
|
|
|
|
call psb_errcomm(ictxt,err)
|
|
|
|
|
if(err.ne.0) goto 9999
|
|
|
|
|
|
|
|
|
|
if(present(alpha)) then
|
|
|
|
|
if(alpha.ne.1.d0) then
|
|
|
|
|
call dscal(nrow,alpha,x,ione)
|
|
|
|
|
end if
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
liwork=nrow
|
|
|
|
|
if (present(work)) then
|
|
|
|
|
if(size(work).ge.liwork) then
|
|
|
|
|
iwork => work
|
|
|
|
|
aliw=.false.
|
|
|
|
|
else
|
|
|
|
|
aliw=.true.
|
|
|
|
|
allocate(iwork(liwork),stat=info)
|
|
|
|
|
if(info.ne.0) then
|
|
|
|
|
info=4010
|
|
|
|
|
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.ne.0) then
|
|
|
|
|
info=4010
|
|
|
|
|
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,dzero,x(iix:size(x)),&
|
|
|
|
|
& desc_a,iwork,info,data=data_)
|
|
|
|
|
else if((tran_ == 'T').or.(tran_ == 'C')) then
|
|
|
|
|
call psi_swaptran(imode,done,x(iix:size(x)),&
|
|
|
|
|
& desc_a,iwork,info)
|
|
|
|
|
else
|
|
|
|
|
info = 4001
|
|
|
|
|
call psb_errpush(info,name,a_err='invalid tran')
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
if(info.ne.0) then
|
|
|
|
|
ch_err='PSI_swapdata'
|
|
|
|
|
call psb_errpush(4010,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
if (aliw) deallocate(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_dhalov
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
