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Added igather/iscatter.

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This commit is contained in:
Salvatore Filippone
2007-01-26 16:21:08 +00:00
parent 3e773d97ad
commit 927575a4a1
7 changed files with 811 additions and 236 deletions
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base/comm/Makefile
+2 -2
View File
@@ -1,9 +1,9 @@
include ../../Make.inc
OBJS = psb_dgather.o psb_dhalo.o psb_dovrl.o \
psb_ihalo.o psb_zgather.o psb_zhalo.o psb_zovrl.o
psb_igather.o psb_ihalo.o psb_zgather.o psb_zhalo.o psb_zovrl.o
MPFOBJS = psb_dscatter.o psb_zscatter.o
MPFOBJS = psb_dscatter.o psb_zscatter.o psb_iscatter.o
LIBDIR = ..
MODDIR = ../modules
INCDIRS = -I $(LIBDIR) -I $(MODDIR) -I .
base/comm/psb_dgather.f90
+16 -64
View File
@@ -39,20 +39,13 @@
! locx - real,dimension(:,:). The local piece of the distributed
! matrix to be gathered.
! desc_a - type(<psb_desc_type>). The communication descriptor.
! info - integer. Eventually returns an error code.
! info - integer. Error code.
! iroot - integer. The process that has to own the
! global matrix. If -1 all
! global matrix. If -1 all
! the processes will have a copy.
! iiglobx - integer(optional). The starting row of the global matrix.
! ijglobx - integer(optional). The starting column of the global matrix.
! iilocx - integer(optional). The starting row of the local piece
! of matrix.
! ijlocx - integer(optional). The starting column of the local piece
! of matrix.
! ik - integer(optional). The number of columns to gather.
! Default: -1.
!
subroutine psb_dgatherm(globx, locx, desc_a, info, iroot,&
& iiglobx, ijglobx, iilocx,ijlocx,ik)
subroutine psb_dgatherm(globx, locx, desc_a, info, iroot)
use psb_descriptor_type
use psb_check_mod
use psb_error_mod
@@ -63,7 +56,7 @@ subroutine psb_dgatherm(globx, locx, desc_a, info, iroot,&
real(kind(1.d0)), intent(out) :: globx(:,:)
type(psb_desc_type), intent(in) :: desc_a
integer, intent(out) :: info
integer, intent(in), optional :: iroot, iiglobx, ijglobx, iilocx, ijlocx, ik
integer, intent(in), optional :: iroot
! locals
@@ -104,29 +97,10 @@ subroutine psb_dgatherm(globx, locx, desc_a, info, iroot,&
iiroot = root
endif
if (present(iiglobx)) then
iglobx = iiglobx
else
iglobx = 1
end if
if (present(ijglobx)) then
jglobx = ijglobx
else
jglobx = 1
end if
if (present(iilocx)) then
ilocx = iilocx
else
ilocx = 1
end if
if (present(ijlocx)) then
jlocx = ijlocx
else
jlocx = 1
end if
iglobx = 1
jglobx = 1
ilocx = 1
jlocx = 1
lda_globx = size(globx,1)
lda_locx = size(locx, 1)
@@ -137,16 +111,7 @@ subroutine psb_dgatherm(globx, locx, desc_a, info, iroot,&
lock=size(locx,2)-jlocx+1
globk=size(globx,2)-jglobx+1
maxk=min(lock,globk)
if(present(ik)) then
if(ik.gt.maxk) then
k=maxk
else
k=ik
end if
else
k = maxk
end if
k = maxk
call psb_bcast(ictxt,k,root=iiroot)
@@ -245,16 +210,12 @@ end subroutine psb_dgatherm
! locx - real,dimension(:). The local piece of the ditributed
! vector to be gathered.
! desc_a - type(<psb_desc_type>). The communication descriptor.
! info - integer. Eventually returns an error code.
! info - integer. Error code.
! iroot - integer. The process that has to own the
! global vector. If -1 all
! global matrix. If -1 all
! the processes will have a copy.
! iiglobx - integer(optional). The starting row of the global vector.
! iilocx - integer(optional). The starting row of the local piece
! of vector.
!
subroutine psb_dgatherv(globx, locx, desc_a, info, iroot,&
& iiglobx, iilocx)
subroutine psb_dgatherv(globx, locx, desc_a, info, iroot)
use psb_descriptor_type
use psb_check_mod
use psb_error_mod
@@ -265,7 +226,7 @@ subroutine psb_dgatherv(globx, locx, desc_a, info, iroot,&
real(kind(1.d0)), intent(out) :: globx(:)
type(psb_desc_type), intent(in) :: desc_a
integer, intent(out) :: info
integer, intent(in), optional :: iroot, iiglobx, iilocx
integer, intent(in), optional :: iroot
! locals
@@ -303,18 +264,9 @@ subroutine psb_dgatherv(globx, locx, desc_a, info, iroot,&
end if
jglobx=1
if (present(iiglobx)) then
iglobx = iiglobx
else
iglobx = 1
end if
iglobx = 1
jlocx=1
if (present(iilocx)) then
ilocx = iilocx
else
ilocx = 1
end if
ilocx = 1
lda_globx = size(globx)
lda_locx = size(locx)
base/comm/psb_dscatter.f90
+14 -51
View File
@@ -38,17 +38,11 @@
! globx - real,dimension(:,:). The global matrix to scatter.
! locx - real,dimension(:,:). The local piece of the ditributed matrix.
! desc_a - type(<psb_desc_type>). The communication descriptor.
! info - integer. Eventually returns an error code.
! info - integer. Error code.
! iroot - integer(optional). The process that owns the global matrix. If -1 all
! the processes have a copy.
! iiglobx - integer(optional). The starting row of the global matrix.
! ijglobx - integer(optional). The starting column of the global matrix.
! iilocx - integer(optional). The starting row of the local piece of matrix.
! ijlocx - integer(optional). The starting column of the local piece of matrix.
! ik - integer(optional). The number of columns to gather.
! the processes have a copy. Default -1.
!
subroutine psb_dscatterm(globx, locx, desc_a, info, iroot,&
& iiglobx, ijglobx, iilocx,ijlocx,ik)
subroutine psb_dscatterm(globx, locx, desc_a, info, iroot)
use psb_descriptor_type
use psb_check_mod
@@ -61,8 +55,7 @@ subroutine psb_dscatterm(globx, locx, desc_a, info, iroot,&
real(kind(1.d0)), intent(in) :: globx(:,:)
type(psb_desc_type), intent(in) :: desc_a
integer, intent(out) :: info
integer, intent(in), optional :: iroot,iiglobx,&
& ijglobx,iilocx,ijlocx,ik
integer, intent(in), optional :: iroot
! locals
@@ -70,8 +63,8 @@ subroutine psb_dscatterm(globx, locx, desc_a, info, iroot,&
& err_act, m, n, i, j, idx, nrow, iiroot, iglobx, jglobx,&
& ilocx, jlocx, lda_locx, lda_globx, lock, globk, icomm, k, maxk, root, ilx,&
& jlx, myrank, rootrank, c, pos
real(kind(1.d0)),pointer :: scatterv(:)
integer, pointer :: displ(:), l_t_g_all(:), all_dim(:)
real(kind(1.d0)), allocatable :: scatterv(:)
integer, allocatable :: displ(:), l_t_g_all(:), all_dim(:)
character(len=20) :: name, ch_err
name='psb_scatterm'
@@ -104,30 +97,10 @@ subroutine psb_dscatterm(globx, locx, desc_a, info, iroot,&
iiroot=0
endif
if (present(iiglobx)) then
iglobx = iiglobx
else
iglobx = 1
end if
if (present(ijglobx)) then
jglobx = ijglobx
else
jglobx = 1
end if
if (present(iilocx)) then
ilocx = iilocx
else
ilocx = 1
end if
if (present(ijlocx)) then
jlocx = ijlocx
else
jlocx = 1
end if
iglobx = 1
jglobx = 1
ilocx = 1
jlocx = 1
lda_globx = size(globx,1)
lda_locx = size(locx, 1)
@@ -137,17 +110,7 @@ subroutine psb_dscatterm(globx, locx, desc_a, info, iroot,&
lock=size(locx,2)-jlocx+1
globk=size(globx,2)-jglobx+1
maxk=min(lock,globk)
if(present(ik)) then
if(ik.gt.maxk) then
k=maxk
else
k=ik
end if
else
k = maxk
end if
k = maxk
call psb_get_mpicomm(ictxt,icomm)
call psb_get_rank(myrank,ictxt,me)
@@ -303,7 +266,7 @@ end subroutine psb_dscatterm
! globx - real,dimension(:). The global vector to scatter.
! locx - real,dimension(:). The local piece of the ditributed vector.
! desc_a - type(<psb_desc_type>). The communication descriptor.
! info - integer. Eventually returns an error code.
! info - integer. Error code.
! iroot - integer(optional). The process that owns the global vector. If -1 all
! the processes have a copy.
!
@@ -327,8 +290,8 @@ subroutine psb_dscatterv(globx, locx, desc_a, info, iroot)
& err_act, m, n, i, j, idx, nrow, iiroot, iglobx, jglobx,&
& ilocx, jlocx, lda_locx, lda_globx, root, k, icomm, myrank,&
& rootrank, pos, ilx, jlx
real(kind(1.d0)),pointer :: scatterv(:)
integer, pointer :: displ(:), l_t_g_all(:), all_dim(:)
real(kind(1.d0)), allocatable :: scatterv(:)
integer, allocatable :: displ(:), l_t_g_all(:), all_dim(:)
character(len=20) :: name, ch_err
name='psb_scatterv'
base/comm/psb_igather.f90
+326
View File
@@ -0,0 +1,326 @@
!!$
!!$ 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_igather.f90
!
! Subroutine: psb_igatherm
! This subroutine gathers pieces of a distributed dense matrix into a local one.
!
! Parameters:
! globx - integer,dimension(:,:). The local matrix into which gather
! the distributed pieces.
! locx - integer,dimension(:,:). The local piece of the distributed
! matrix to be gathered.
! desc_a - type(<psb_desc_type>). The communication descriptor.
! info - integer. Error 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_igatherm(globx, locx, desc_a, info, iroot)
use psb_descriptor_type
use psb_check_mod
use psb_error_mod
use psb_penv_mod
implicit none
integer, intent(in) :: locx(:,:)
integer, 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_igatherm'
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
if (present(iroot)) then
root = iroot
if((root.lt.-1).or.(root.gt.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=0
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.ne.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.ne.1).or.(iglobx.ne.1)) then
info=3040
call psb_errpush(info,name)
goto 9999
end if
globx(:,:)=0
do j=1,k
do i=1,psb_cd_get_local_rows(desc_a)
idx = desc_a%loc_to_glob(i)
globx(idx,jglobx+j-1) = locx(i,jlx+j-1)
end do
! adjust overlapped elements
i=1
do while (desc_a%ovrlap_elem(i).ne.-1)
idx=desc_a%ovrlap_elem(i+psb_ovrlp_elem_)
idx=desc_a%loc_to_glob(idx)
globx(idx,jglobx+j-1) = &
& globx(idx,jglobx+j-1)/desc_a%ovrlap_elem(i+psb_n_dom_ovr_)
i=i+2
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.eq.psb_act_abort_) then
call psb_error(ictxt)
return
end if
return
end subroutine psb_igatherm
!!$
!!$ 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_igatherv
! This subroutine gathers pieces of a distributed dense vector into a local one.
!
! Parameters:
! globx - integer,dimension(:). The local vector into which gather the
! distributed pieces.
! locx - integer,dimension(:). The local piece of the ditributed
! vector to be gathered.
! desc_a - type(<psb_desc_type>). The communication descriptor.
! info - integer. Error code.
! iroot - integer. The process that has to own the
! global matrix. If -1 all
! the processes will have a copy.
!
subroutine psb_igatherv(globx, locx, desc_a, info, iroot)
use psb_descriptor_type
use psb_check_mod
use psb_error_mod
use psb_penv_mod
implicit none
integer, intent(in) :: locx(:)
integer, 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_igatherv'
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
if (present(iroot)) then
root = iroot
if((root.lt.-1).or.(root.gt.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.ne.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.ne.1).or.(iglobx.ne.1)) then
info=3040
call psb_errpush(info,name)
goto 9999
end if
globx(:)=0
do i=1,psb_cd_get_local_rows(desc_a)
idx = desc_a%loc_to_glob(i)
globx(idx) = locx(i)
end do
! adjust overlapped elements
i=1
do while (desc_a%ovrlap_elem(i).ne.-1)
idx=desc_a%ovrlap_elem(i+psb_ovrlp_elem_)
idx=desc_a%loc_to_glob(idx)
globx(idx) = globx(idx)/desc_a%ovrlap_elem(i+psb_n_dom_ovr_)
i=i+2
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.eq.psb_act_abort_) then
call psb_error(ictxt)
return
end if
return
end subroutine psb_igatherv
base/comm/psb_iscatter.f90
+416
View File
@@ -0,0 +1,416 @@
!!$
!!$ 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_iscatter.f90
!
! Subroutine: psb_iscatterm
! This subroutine scatters a global matrix locally owned by one process
! into pieces that are local to alle the processes.
!
! Parameters:
! globx - integer,dimension(:,:). The global matrix to scatter.
! locx - integer,dimension(:,:). The local piece of the ditributed matrix.
! desc_a - type(<psb_desc_type>). The communication descriptor.
! info - integer. Error code.
! iroot - integer(optional). The process that owns the global matrix. If -1 all
! the processes have a copy.
!
subroutine psb_iscatterm(globx, locx, desc_a, info, iroot)
use psb_descriptor_type
use psb_check_mod
use psb_error_mod
use mpi
use psb_penv_mod
implicit none
integer, intent(out) :: locx(:,:)
integer, intent(in) :: 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, m, n, i, j, idx, nrow, iiroot, iglobx, jglobx,&
& ilocx, jlocx, lda_locx, lda_globx, lock, globk, icomm, k, maxk, root, ilx,&
& jlx, myrank, rootrank, c, pos
integer, allocatable :: scatterv(:)
integer, allocatable :: displ(:), l_t_g_all(:), all_dim(:)
character(len=20) :: name, ch_err
name='psb_scatterm'
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.lt.-1).or.(root.gt.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=0
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_get_mpicomm(ictxt,icomm)
call psb_get_rank(myrank,ictxt,me)
lda_globx = size(globx)
lda_locx = size(locx)
m = psb_cd_get_global_rows(desc_a)
n = psb_cd_get_global_cols(desc_a)
if (me == iiroot) then
call igebs2d(ictxt, 'all', ' ', 1, 1, k, 1)
else
call igebr2d(ictxt, 'all', ' ', 1, 1, k, 1, iiroot, 0)
end if
! there should be a global check on k here!!!
call psb_chkglobvect(m,n,size(globx),iglobx,jglobx,desc_a,info)
if (info == 0) 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
nrow=psb_cd_get_local_rows(desc_a)
if(root == -1) then
! extract my chunk
do j=1,k
do i=1, nrow
idx=desc_a%loc_to_glob(i)
locx(i,jlocx+j-1)=globx(idx,jglobx+j-1)
end do
end do
else
call psb_get_rank(rootrank,ictxt,root)
end if
! root has to gather size information
allocate(displ(np),all_dim(np),stat=info)
if(info /= 0) then
info=4010
ch_err='Allocate'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
call mpi_gather(nrow,1,mpi_integer,all_dim,&
& np,mpi_integer,rootrank,icomm,info)
displ(1)=1
displ(2:)=all_dim(1:np-1)+1
! root has to gather loc_glob from each process
if(me == root) then
allocate(l_t_g_all(sum(all_dim)),scatterv(sum(all_dim)),stat=info)
if(info /= 0) then
info=4010
ch_err='Allocate'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
end if
call mpi_gatherv(desc_a%loc_to_glob,nrow,&
& mpi_integer,l_t_g_all,all_dim,&
& displ,mpi_integer,rootrank,icomm,info)
do c=1, k
! prepare vector to scatter
if(me == root) then
do i=1,np
pos=displ(i)
do j=1, all_dim(i)
idx=l_t_g_all(pos+j-1)
scatterv(pos+j-1)=globx(idx,jglobx+c-1)
end do
end do
end if
! scatter !!!
call mpi_scatterv(scatterv,all_dim,displ,&
& mpi_integer,locx(1,jlocx+c-1),nrow,&
& mpi_integer,rootrank,icomm,info)
end do
deallocate(all_dim, l_t_g_all, displ, scatterv)
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_iscatterm
!!$
!!$ 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_iscatterv
! This subroutine scatters a global vector locally owned by one process
! into pieces that are local to alle the processes.
!
! Parameters:
! globx - integer,dimension(:). The global vector to scatter.
! locx - integer,dimension(:). The local piece of the ditributed vector.
! desc_a - type(<psb_desc_type>). The communication descriptor.
! info - integer. Error code.
! iroot - integer(optional). The process that owns the global vector. If -1 all
! the processes have a copy.
!
subroutine psb_iscatterv(globx, locx, desc_a, info, iroot)
use psb_descriptor_type
use psb_check_mod
use psb_error_mod
use mpi
use psb_penv_mod
implicit none
integer, intent(out) :: locx(:)
integer, intent(in) :: 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, m, n, i, j, idx, nrow, iiroot, iglobx, jglobx,&
& ilocx, jlocx, lda_locx, lda_globx, root, k, icomm, myrank,&
& rootrank, pos, ilx, jlx
integer, allocatable :: scatterv(:)
integer, allocatable :: displ(:), l_t_g_all(:), all_dim(:)
character(len=20) :: name, ch_err
name='psb_scatterv'
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.lt.-1).or.(root.gt.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
call psb_get_mpicomm(ictxt,icomm)
call psb_get_rank(myrank,ictxt,me)
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
if (me == iiroot) then
call igebs2d(ictxt, 'all', ' ', 1, 1, k, 1)
else
call igebr2d(ictxt, 'all', ' ', 1, 1, k, 1, iiroot, 0)
end if
! there should be a global check on k here!!!
call psb_chkglobvect(m,n,size(globx),iglobx,jglobx,desc_a,info)
if (info == 0) &
& 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
nrow=psb_cd_get_local_rows(desc_a)
if(root == -1) then
! extract my chunk
do i=1, nrow
idx=desc_a%loc_to_glob(i)
locx(i)=globx(idx)
end do
else
call psb_get_rank(rootrank,ictxt,root)
end if
! root has to gather size information
allocate(displ(np),all_dim(np))
call mpi_gather(nrow,1,mpi_integer,all_dim,&
& np,mpi_integer,rootrank,icomm,info)
displ(1)=1
displ(2:)=all_dim(1:np-1)+1
! root has to gather loc_glob from each process
if(me == root) then
allocate(l_t_g_all(sum(all_dim)),scatterv(sum(all_dim)))
end if
call mpi_gatherv(desc_a%loc_to_glob,nrow,&
& mpi_integer,l_t_g_all,all_dim,&
& displ,mpi_integer,rootrank,icomm,info)
! prepare vector to scatter
if(me == root) then
do i=1,np
pos=displ(i)
do j=1, all_dim(i)
idx=l_t_g_all(pos+j-1)
scatterv(pos+j-1)=globx(idx)
end do
end do
end if
call mpi_scatterv(scatterv,all_dim,displ,&
& mpi_integer,locx,nrow,&
& mpi_integer,rootrank,icomm,info)
deallocate(all_dim, l_t_g_all, displ, scatterv)
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_iscatterv
base/comm/psb_zgather.f90
+23 -70
View File
@@ -34,25 +34,17 @@
! This subroutine gathers pieces of a distributed dense matrix into a local one.
!
! Parameters:
! globx - real,dimension(:,:). The local matrix into which gather
! globx - cplx,dimension(:,:). The local matrix into which gather
! the distributed pieces.
! locx - real,dimension(:,:). The local piece of the distributed
! locx - cplx,dimension(:,:). The local piece of the distributed
! matrix to be gathered.
! desc_a - type(<psb_desc_type>). The communication descriptor.
! info - integer. Eventually returns an error code.
! info - integer. Error code.
! iroot - integer. The process that has to own the
! global matrix. If -1 all
! global matrix. If -1 all
! the processes will have a copy.
! iiglobx - integer(optional). The starting row of the global matrix.
! ijglobx - integer(optional). The starting column of the global matrix.
! iilocx - integer(optional). The starting row of the local piece
! of matrix.
! ijlocx - integer(optional). The starting column of the local piece
! of matrix.
! ik - integer(optional). The number of columns to gather.
!
subroutine psb_zgatherm(globx, locx, desc_a, info, iroot,&
& iiglobx, ijglobx, iilocx,ijlocx,ik)
subroutine psb_zgatherm(globx, locx, desc_a, info, iroot)
use psb_descriptor_type
use psb_check_mod
use psb_error_mod
@@ -63,7 +55,7 @@ subroutine psb_zgatherm(globx, locx, desc_a, info, iroot,&
complex(kind(1.d0)), intent(out) :: globx(:,:)
type(psb_desc_type), intent(in) :: desc_a
integer, intent(out) :: info
integer, intent(in), optional :: iroot, iiglobx, ijglobx, iilocx, ijlocx, ik
integer, intent(in), optional :: iroot
! locals
@@ -105,29 +97,10 @@ subroutine psb_zgatherm(globx, locx, desc_a, info, iroot,&
iiroot = root
endif
if (present(iiglobx)) then
iglobx = iiglobx
else
iglobx = 1
end if
if (present(ijglobx)) then
jglobx = ijglobx
else
jglobx = 1
end if
if (present(iilocx)) then
ilocx = iilocx
else
ilocx = 1
end if
if (present(ijlocx)) then
jlocx = ijlocx
else
jlocx = 1
end if
iglobx = 1
jglobx = 1
ilocx = 1
jlocx = 1
lda_globx = size(globx,1)
lda_locx = size(locx, 1)
@@ -139,15 +112,7 @@ subroutine psb_zgatherm(globx, locx, desc_a, info, iroot,&
globk=size(globx,2)-jglobx+1
maxk=min(lock,globk)
if(present(ik)) then
if(ik.gt.maxk) then
k=maxk
else
k=ik
end if
else
k = maxk
end if
k = maxk
call psb_bcast(ictxt,k,root=iiroot)
@@ -164,9 +129,9 @@ subroutine psb_zgatherm(globx, locx, desc_a, info, iroot,&
end if
if ((ilx.ne.1).or.(iglobx.ne.1)) then
info=3040
call psb_errpush(info,name)
goto 9999
info=3040
call psb_errpush(info,name)
goto 9999
end if
globx(:,:)=0.d0
@@ -242,21 +207,18 @@ end subroutine psb_zgatherm
! This subroutine gathers pieces of a distributed dense vector into a local one.
!
! Parameters:
! globx - real,dimension(:). The local vector into which gather
! globx - cplx,dimension(:). The local vector into which gather
! the distributed pieces.
! locx - real,dimension(:). The local piece of the distributed
! locx - cplx,dimension(:). The local piece of the distributed
! vector to be gathered.
! desc_a - type(<psb_desc_type>). The communication descriptor.
! info - integer. Eventually returns an error code.
! info - integer. Error code.
! iroot - integer. The process that has to own the
! global vector. If -1 all
! global matrix. If -1 all
! the processes will have a copy.
! iiglobx - integer(optional). The starting row of the global vector.
! iilocx - integer(optional). The starting row of the local piece
! of vector.
! default: -1
!
subroutine psb_zgatherv(globx, locx, desc_a, info, iroot,&
& iiglobx, iilocx)
subroutine psb_zgatherv(globx, locx, desc_a, info, iroot)
use psb_descriptor_type
use psb_check_mod
use psb_error_mod
@@ -267,7 +229,7 @@ subroutine psb_zgatherv(globx, locx, desc_a, info, iroot,&
complex(kind(1.d0)), intent(out) :: globx(:)
type(psb_desc_type), intent(in) :: desc_a
integer, intent(out) :: info
integer, intent(in), optional :: iroot, iiglobx, iilocx
integer, intent(in), optional :: iroot
! locals
@@ -305,18 +267,9 @@ subroutine psb_zgatherv(globx, locx, desc_a, info, iroot,&
end if
jglobx=1
if (present(iiglobx)) then
iglobx = iiglobx
else
iglobx = 1
end if
iglobx = 1
jlocx=1
if (present(iilocx)) then
ilocx = iilocx
else
ilocx = 1
end if
ilocx = 1
lda_globx = size(globx)
lda_locx = size(locx)
base/comm/psb_zscatter.f90
+14 -49
View File
@@ -38,17 +38,10 @@
! globx - complex,dimension(:,:). The global matrix to scatter.
! locx - complex,dimension(:,:). The local piece of the ditributed matrix.
! desc_a - type(<psb_desc_type>). The communication descriptor.
! info - integer. Eventually returns an error code.
! info - integer. Error code.
! iroot - integer(optional). The process that owns the global matrix. If -1 all
! the processes have a copy.
! iiglobx - integer(optional). The starting row of the global matrix.
! ijglobx - integer(optional). The starting column of the global matrix.
! iilocx - integer(optional). The starting row of the local piece of matrix.
! ijlocx - integer(optional). The starting column of the local piece of matrix.
! ik - integer(optional). The number of columns to gather.
!
subroutine psb_zscatterm(globx, locx, desc_a, info, iroot,&
& iiglobx, ijglobx, iilocx,ijlocx,ik)
! the processes have a copy. Default -1
subroutine psb_zscatterm(globx, locx, desc_a, info, iroot)
use psb_descriptor_type
use psb_check_mod
@@ -61,8 +54,7 @@ subroutine psb_zscatterm(globx, locx, desc_a, info, iroot,&
complex(kind(1.d0)), intent(in) :: globx(:,:)
type(psb_desc_type), intent(in) :: desc_a
integer, intent(out) :: info
integer, intent(in), optional :: iroot,iiglobx,&
& ijglobx,iilocx,ijlocx,ik
integer, intent(in), optional :: iroot
! locals
@@ -70,8 +62,8 @@ subroutine psb_zscatterm(globx, locx, desc_a, info, iroot,&
& err_act, m, n, i, j, idx, nrow, iiroot, iglobx, jglobx,&
& ilocx, jlocx, lda_locx, lda_globx, lock, globk, icomm, k, maxk, root, ilx,&
& jlx, myrank, rootrank, c, pos
complex(kind(1.d0)),pointer :: scatterv(:)
integer, pointer :: displ(:), l_t_g_all(:), all_dim(:)
complex(kind(1.d0)),allocatable :: scatterv(:)
integer, allocatable :: displ(:), l_t_g_all(:), all_dim(:)
character(len=20) :: name, ch_err
name='psb_scatterm'
@@ -104,30 +96,12 @@ subroutine psb_zscatterm(globx, locx, desc_a, info, iroot,&
iiroot=0
endif
if (present(iiglobx)) then
iglobx = iiglobx
else
iglobx = 1
end if
if (present(ijglobx)) then
jglobx = ijglobx
else
jglobx = 1
end if
if (present(iilocx)) then
ilocx = iilocx
else
ilocx = 1
end if
if (present(ijlocx)) then
jlocx = ijlocx
else
jlocx = 1
end if
iglobx = 1
jglobx = 1
ilocx = 1
jlocx = 1
lda_globx = size(globx,1)
lda_locx = size(locx, 1)
@@ -137,16 +111,7 @@ subroutine psb_zscatterm(globx, locx, desc_a, info, iroot,&
lock=size(locx,2)-jlocx+1
globk=size(globx,2)-jglobx+1
maxk=min(lock,globk)
if(present(ik)) then
if(ik.gt.maxk) then
k=maxk
else
k=ik
end if
else
k = maxk
end if
k = maxk
call psb_get_mpicomm(ictxt,icomm)
call psb_get_rank(myrank,ictxt,me)
@@ -327,8 +292,8 @@ subroutine psb_zscatterv(globx, locx, desc_a, info, iroot)
& err_act, m, n, i, j, idx, nrow, iiroot, iglobx, jglobx,&
& ilocx, jlocx, lda_locx, lda_globx, root, k, icomm, myrank,&
& rootrank, c, pos, ilx, jlx
complex(kind(1.d0)),pointer :: scatterv(:)
integer, pointer :: displ(:), l_t_g_all(:), all_dim(:)
complex(kind(1.d0)), allocatable :: scatterv(:)
integer, allocatable :: displ(:), l_t_g_all(:), all_dim(:)
character(len=20) :: name, ch_err
name='psb_scatterv'