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.
330 lines
10 KiB
Fortran
330 lines
10 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_sgather.f90
|
|
!
|
|
! Subroutine: psb_sgatherm
|
|
! This subroutine gathers pieces of a distributed dense matrix into a local one.
|
|
!
|
|
! Arguments:
|
|
! globx - real,dimension(:,:). The local matrix into which gather
|
|
! the distributed pieces.
|
|
! locx - real,dimension(:,:). The local piece of the distributed
|
|
! matrix to be gathered.
|
|
! desc_a - type(psb_desc_type). The communication descriptor.
|
|
! info - integer. Return code.
|
|
! iroot - integer. The process that has to own the
|
|
! global matrix. If -1 all
|
|
! the processes will have a copy.
|
|
! Default: -1.
|
|
!
|
|
subroutine psb_sgatherm(globx, locx, desc_a, info, iroot)
|
|
use psb_descriptor_type
|
|
use psb_check_mod
|
|
use psb_error_mod
|
|
use psb_penv_mod
|
|
implicit none
|
|
|
|
real(psb_spk_), intent(in) :: locx(:,:)
|
|
real(psb_spk_), intent(out) :: globx(:,:)
|
|
type(psb_desc_type), intent(in) :: desc_a
|
|
integer, intent(out) :: info
|
|
integer, intent(in), optional :: iroot
|
|
|
|
|
|
! locals
|
|
integer :: int_err(5), ictxt, np, me,&
|
|
& err_act, n, root, iiroot, ilocx, iglobx, jlocx,&
|
|
& jglobx, lda_locx, lda_globx, m, lock, globk, maxk, k, jlx, ilx, i, j, idx
|
|
character(len=20) :: name, ch_err
|
|
|
|
name='psb_sgatherm'
|
|
if(psb_get_errstatus() /= 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
|
|
|
|
if (present(iroot)) then
|
|
root = iroot
|
|
if((root < -1).or.(root > np)) then
|
|
info=30
|
|
int_err(1:2)=(/5,root/)
|
|
call psb_errpush(info,name,i_err=int_err)
|
|
goto 9999
|
|
end if
|
|
else
|
|
root = -1
|
|
end if
|
|
if (root==-1) then
|
|
iiroot = psb_root_
|
|
else
|
|
iiroot = root
|
|
endif
|
|
|
|
iglobx = 1
|
|
jglobx = 1
|
|
ilocx = 1
|
|
jlocx = 1
|
|
|
|
lda_globx = size(globx,1)
|
|
lda_locx = size(locx, 1)
|
|
|
|
m = psb_cd_get_global_rows(desc_a)
|
|
n = psb_cd_get_global_cols(desc_a)
|
|
|
|
lock=size(locx,2)-jlocx+1
|
|
globk=size(globx,2)-jglobx+1
|
|
maxk=min(lock,globk)
|
|
k = maxk
|
|
|
|
call psb_bcast(ictxt,k,root=iiroot)
|
|
|
|
! there should be a global check on k here!!!
|
|
|
|
call psb_chkglobvect(m,n,size(globx,1),iglobx,jglobx,desc_a,info)
|
|
call psb_chkvect(m,n,size(locx,1),ilocx,jlocx,desc_a,info,ilx,jlx)
|
|
if(info /= 0) then
|
|
info=4010
|
|
ch_err='psb_chk(glob)vect'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
if ((ilx /= 1).or.(iglobx /= 1)) then
|
|
info=3040
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
|
|
globx(:,:)=0.d0
|
|
|
|
do j=1,k
|
|
do i=1,psb_cd_get_local_rows(desc_a)
|
|
idx = desc_a%idxmap%loc_to_glob(i)
|
|
globx(idx,jglobx+j-1) = locx(i,jlx+j-1)
|
|
end do
|
|
end do
|
|
do j=1,k
|
|
! adjust overlapped elements
|
|
do i=1, size(desc_a%ovrlap_elem,1)
|
|
if (me /= desc_a%ovrlap_elem(i,3)) then
|
|
idx = desc_a%ovrlap_elem(i,1)
|
|
idx = desc_a%idxmap%loc_to_glob(idx)
|
|
globx(idx,jglobx+j-1) = szero
|
|
end if
|
|
end do
|
|
end do
|
|
|
|
call psb_sum(ictxt,globx(1:m,jglobx:jglobx+k-1),root=root)
|
|
|
|
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_sgatherm
|
|
|
|
|
|
|
|
|
|
|
|
|
|
!!$
|
|
!!$ 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_sgatherv
|
|
! This subroutine gathers pieces of a distributed dense vector into a local one.
|
|
!
|
|
! Arguments:
|
|
! globx - real,dimension(:). The local vector into which gather the
|
|
! distributed pieces.
|
|
! locx - real,dimension(:). The local piece of the ditributed
|
|
! vector to be gathered.
|
|
! desc_a - type(psb_desc_type). The communication descriptor.
|
|
! info - integer. Return code.
|
|
! root - integer. The process that has to own the
|
|
! global matrix. If -1 all
|
|
! the processes will have a copy.
|
|
!
|
|
subroutine psb_sgatherv(globx, locx, desc_a, info, iroot)
|
|
use psb_descriptor_type
|
|
use psb_check_mod
|
|
use psb_error_mod
|
|
use psb_penv_mod
|
|
implicit none
|
|
|
|
real(psb_spk_), intent(in) :: locx(:)
|
|
real(psb_spk_), intent(out) :: globx(:)
|
|
type(psb_desc_type), intent(in) :: desc_a
|
|
integer, intent(out) :: info
|
|
integer, intent(in), optional :: iroot
|
|
|
|
|
|
! locals
|
|
integer :: int_err(5), ictxt, np, me, &
|
|
& err_act, n, root, ilocx, iglobx, jlocx,&
|
|
& jglobx, lda_locx, lda_globx, m, k, jlx, ilx, i, idx
|
|
|
|
character(len=20) :: name, ch_err
|
|
|
|
name='psb_sgatherv'
|
|
if(psb_get_errstatus() /= 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
|
|
|
|
if (present(iroot)) then
|
|
root = iroot
|
|
if((root < -1).or.(root > np)) then
|
|
info=30
|
|
int_err(1:2)=(/5,root/)
|
|
call psb_errpush(info,name,i_err=int_err)
|
|
goto 9999
|
|
end if
|
|
else
|
|
root = -1
|
|
end if
|
|
|
|
jglobx=1
|
|
iglobx = 1
|
|
jlocx=1
|
|
ilocx = 1
|
|
|
|
lda_globx = size(globx)
|
|
lda_locx = size(locx)
|
|
|
|
m = psb_cd_get_global_rows(desc_a)
|
|
n = psb_cd_get_global_cols(desc_a)
|
|
|
|
k = 1
|
|
|
|
|
|
! there should be a global check on k here!!!
|
|
|
|
call psb_chkglobvect(m,n,size(globx),iglobx,jglobx,desc_a,info)
|
|
call psb_chkvect(m,n,size(locx),ilocx,jlocx,desc_a,info,ilx,jlx)
|
|
if(info /= 0) then
|
|
info=4010
|
|
ch_err='psb_chk(glob)vect'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
if ((ilx /= 1).or.(iglobx /= 1)) then
|
|
info=3040
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
|
|
globx(:)=0.d0
|
|
|
|
do i=1,psb_cd_get_local_rows(desc_a)
|
|
idx = desc_a%idxmap%loc_to_glob(i)
|
|
globx(idx) = locx(i)
|
|
end do
|
|
|
|
! adjust overlapped elements
|
|
do i=1, size(desc_a%ovrlap_elem,1)
|
|
if (me /= desc_a%ovrlap_elem(i,3)) then
|
|
idx = desc_a%ovrlap_elem(i,1)
|
|
idx = desc_a%idxmap%loc_to_glob(idx)
|
|
globx(idx) = szero
|
|
end if
|
|
end do
|
|
call psb_sum(ictxt,globx(1:m),root=root)
|
|
|
|
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_sgatherv
|