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psblas3/base/tools/psb_s_map.f90

433 lines
14 KiB
Fortran

!!$
!!$ Parallel Sparse BLAS version 3.0
!!$ (C) Copyright 2006, 2007, 2008, 2009, 2010, 2012
!!$ Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari CNRS-IRIT, Toulouse
!!$
!!$ 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.
!!$
!!$
!!$
!
!
!
! Takes a vector x from space map%p_desc_X and maps it onto
! map%p_desc_Y under map%map_X2Y possibly with communication
! due to exch_fw_idx
!
subroutine psb_s_map_X2Y(alpha,x,beta,y,map,info,work)
use psb_base_mod, psb_protect_name => psb_s_map_X2Y
implicit none
type(psb_slinmap_type), intent(in) :: map
real(psb_spk_), intent(in) :: alpha,beta
real(psb_spk_), intent(inout) :: x(:)
real(psb_spk_), intent(out) :: y(:)
integer(psb_ipk_), intent(out) :: info
real(psb_spk_), optional :: work(:)
!
real(psb_spk_), allocatable :: xt(:), yt(:)
integer(psb_ipk_) :: i, j, nr1, nc1,nr2, nc2,&
& map_kind, nr, ictxt
character(len=20), parameter :: name='psb_map_X2Y'
info = psb_success_
if (.not.map%is_asb()) then
write(psb_err_unit,*) trim(name),' Invalid map input: unassembled'
info = 1
return
end if
map_kind = map%get_kind()
select case(map_kind)
case(psb_map_aggr_)
ictxt = map%p_desc_Y%get_context()
nr2 = map%p_desc_Y%get_global_rows()
nc2 = map%p_desc_Y%get_local_cols()
allocate(yt(nc2),stat=info)
if (info == psb_success_) call psb_halo(x,map%p_desc_X,info,work=work)
if (info == psb_success_) call psb_csmm(sone,map%map_X2Y,x,szero,yt,info)
if ((info == psb_success_) .and. psb_is_repl_desc(map%p_desc_Y)) then
call psb_sum(ictxt,yt(1:nr2))
end if
if (info == psb_success_) call psb_geaxpby(alpha,yt,beta,y,map%p_desc_Y,info)
if (info /= psb_success_) then
write(psb_err_unit,*) trim(name),' Error from inner routines',info
info = -1
end if
case(psb_map_gen_linear_)
ictxt = map%desc_Y%get_context()
nr1 = map%desc_X%get_local_rows()
nc1 = map%desc_X%get_local_cols()
nr2 = map%desc_Y%get_global_rows()
nc2 = map%desc_Y%get_local_cols()
allocate(xt(nc1),yt(nc2),stat=info)
xt(1:nr1) = x(1:nr1)
if (info == psb_success_) call psb_halo(xt,map%desc_X,info,work=work)
if (info == psb_success_) call psb_csmm(sone,map%map_X2Y,xt,szero,yt,info)
if ((info == psb_success_) .and. psb_is_repl_desc(map%desc_Y)) then
call psb_sum(ictxt,yt(1:nr2))
end if
if (info == psb_success_) call psb_geaxpby(alpha,yt,beta,y,map%desc_Y,info)
if (info /= psb_success_) then
write(psb_err_unit,*) trim(name),' Error from inner routines',info
info = -1
end if
case default
write(psb_err_unit,*) trim(name),' Invalid descriptor input', &
& map_kind, psb_map_aggr_, psb_map_gen_linear_
info = 1
return
end select
end subroutine psb_s_map_X2Y
subroutine psb_s_map_X2Y_vect(alpha,x,beta,y,map,info,work)
use psb_base_mod, psb_protect_name => psb_s_map_X2Y_vect
implicit none
type(psb_slinmap_type), intent(in) :: map
real(psb_spk_), intent(in) :: alpha,beta
type(psb_s_vect_type), intent(inout) :: x,y
integer(psb_ipk_), intent(out) :: info
real(psb_spk_), optional :: work(:)
! Local
type(psb_s_vect_type) :: xt, yt
real(psb_spk_), allocatable :: xta(:), yta(:)
integer(psb_ipk_) :: i, j, nr1, nc1,nr2, nc2 ,&
& map_kind, nr, ictxt
character(len=20), parameter :: name='psb_map_X2Y'
info = psb_success_
if (.not.map%is_asb()) then
write(psb_err_unit,*) trim(name),' Invalid map input: unassembled'
info = 1
return
end if
map_kind = map%get_kind()
select case(map_kind)
case(psb_map_aggr_)
ictxt = map%p_desc_Y%get_context()
nr2 = map%p_desc_Y%get_global_rows()
nc2 = map%p_desc_Y%get_local_cols()
call yt%bld(nc2,mold=x%v)
if (info == psb_success_) call psb_halo(x,map%p_desc_X,info,work=work)
if (info == psb_success_) call psb_csmm(sone,map%map_X2Y,x,szero,yt,info)
if ((info == psb_success_) .and. map%p_desc_Y%is_repl()) then
yta = yt%get_vect()
call psb_sum(ictxt,yta(1:nr2))
call yt%set(yta)
end if
if (info == psb_success_) call psb_geaxpby(alpha,yt,beta,y,map%p_desc_Y,info)
if (info /= psb_success_) then
write(psb_err_unit,*) trim(name),' Error from inner routines',info
info = -1
end if
call yt%free(info)
case(psb_map_gen_linear_)
ictxt = map%desc_Y%get_context()
nr1 = map%desc_X%get_local_rows()
nc1 = map%desc_X%get_local_cols()
nr2 = map%desc_Y%get_global_rows()
nc2 = map%desc_Y%get_local_cols()
call xt%bld(nc1,mold=x%v)
call yt%bld(nc2,mold=y%v)
xta = x%get_vect()
call xt%set(xta(1:nr1))
if (info == psb_success_) call psb_halo(xt,map%desc_X,info,work=work)
if (info == psb_success_) call psb_csmm(sone,map%map_X2Y,xt,szero,yt,info)
if ((info == psb_success_) .and. map%desc_Y%is_repl()) then
yta = yt%get_vect()
call psb_sum(ictxt,yta(1:nr2))
call yt%set(yta)
end if
if (info == psb_success_) call psb_geaxpby(alpha,yt,beta,y,map%desc_Y,info)
if (info /= psb_success_) then
write(psb_err_unit,*) trim(name),' Error from inner routines',info
info = -1
end if
call xt%free(info)
call yt%free(info)
case default
write(psb_err_unit,*) trim(name),' Invalid descriptor input', &
& map_kind, psb_map_aggr_, psb_map_gen_linear_
info = 1
return
end select
return
end subroutine psb_s_map_X2Y_vect
!
! Takes a vector x from space map%p_desc_Y and maps it onto
! map%p_desc_X under map%map_Y2X possibly with communication
! due to exch_bk_idx
!
subroutine psb_s_map_Y2X(alpha,x,beta,y,map,info,work)
use psb_base_mod, psb_protect_name => psb_s_map_Y2X
implicit none
type(psb_slinmap_type), intent(in) :: map
real(psb_spk_), intent(in) :: alpha,beta
real(psb_spk_), intent(inout) :: x(:)
real(psb_spk_), intent(out) :: y(:)
integer(psb_ipk_), intent(out) :: info
real(psb_spk_), optional :: work(:)
!
real(psb_spk_), allocatable :: xt(:), yt(:)
integer(psb_ipk_) :: i, j, nr1, nc1,nr2, nc2,&
& map_kind, nr, ictxt
character(len=20), parameter :: name='psb_map_Y2X'
info = psb_success_
if (.not.map%is_asb()) then
write(psb_err_unit,*) trim(name),' Invalid map input: unassembled'
info = 1
return
end if
map_kind = map%get_kind()
select case(map_kind)
case(psb_map_aggr_)
ictxt = map%p_desc_X%get_context()
nr2 = map%p_desc_X%get_global_rows()
nc2 = map%p_desc_X%get_local_cols()
allocate(yt(nc2),stat=info)
if (info == psb_success_) call psb_halo(x,map%p_desc_Y,info,work=work)
if (info == psb_success_) call psb_csmm(sone,map%map_Y2X,x,szero,yt,info)
if ((info == psb_success_) .and. psb_is_repl_desc(map%p_desc_X)) then
call psb_sum(ictxt,yt(1:nr2))
end if
if (info == psb_success_) call psb_geaxpby(alpha,yt,beta,y,map%p_desc_X,info)
if (info /= psb_success_) then
write(psb_err_unit,*) trim(name),' Error from inner routines',info
info = -1
end if
case(psb_map_gen_linear_)
ictxt = map%desc_X%get_context()
nr1 = map%desc_Y%get_local_rows()
nc1 = map%desc_Y%get_local_cols()
nr2 = map%desc_X%get_global_rows()
nc2 = map%desc_X%get_local_cols()
allocate(xt(nc1),yt(nc2),stat=info)
xt(1:nr1) = x(1:nr1)
if (info == psb_success_) call psb_halo(xt,map%desc_Y,info,work=work)
if (info == psb_success_) call psb_csmm(sone,map%map_Y2X,xt,szero,yt,info)
if ((info == psb_success_) .and. psb_is_repl_desc(map%desc_X)) then
call psb_sum(ictxt,yt(1:nr2))
end if
if (info == psb_success_) call psb_geaxpby(alpha,yt,beta,y,map%desc_X,info)
if (info /= psb_success_) then
write(psb_err_unit,*) trim(name),' Error from inner routines',info
info = -1
end if
case default
write(psb_err_unit,*) trim(name),' Invalid descriptor input'
info = 1
return
end select
end subroutine psb_s_map_Y2X
subroutine psb_s_map_Y2X_vect(alpha,x,beta,y,map,info,work)
use psb_base_mod, psb_protect_name => psb_s_map_Y2X_vect
implicit none
type(psb_slinmap_type), intent(in) :: map
real(psb_spk_), intent(in) :: alpha,beta
type(psb_s_vect_type), intent(inout) :: x,y
integer(psb_ipk_), intent(out) :: info
real(psb_spk_), optional :: work(:)
!
type(psb_s_vect_type) :: xt, yt
real(psb_spk_), allocatable :: xta(:), yta(:)
integer(psb_ipk_) :: i, j, nr1, nc1,nr2, nc2,&
& map_kind, nr, ictxt
character(len=20), parameter :: name='psb_map_Y2X'
info = psb_success_
if (.not.map%is_asb()) then
write(psb_err_unit,*) trim(name),' Invalid map input: unassembled'
info = 1
return
end if
map_kind = map%get_kind()
select case(map_kind)
case(psb_map_aggr_)
ictxt = map%p_desc_X%get_context()
nr2 = map%p_desc_X%get_global_rows()
nc2 = map%p_desc_X%get_local_cols()
call yt%bld(nc2,mold=y%v)
if (info == psb_success_) call psb_halo(x,map%p_desc_Y,info,work=work)
if (info == psb_success_) call psb_csmm(sone,map%map_Y2X,x,szero,yt,info)
if ((info == psb_success_) .and. map%p_desc_X%is_repl()) then
yta = yt%get_vect()
call psb_sum(ictxt,yta(1:nr2))
call yt%set(yta)
end if
if (info == psb_success_) call psb_geaxpby(alpha,yt,beta,y,map%p_desc_X,info)
if (info /= psb_success_) then
write(psb_err_unit,*) trim(name),' Error from inner routines',info
info = -1
end if
call yt%free(info)
case(psb_map_gen_linear_)
ictxt = map%desc_X%get_context()
nr1 = map%desc_Y%get_local_rows()
nc1 = map%desc_Y%get_local_cols()
nr2 = map%desc_X%get_global_rows()
nc2 = map%desc_X%get_local_cols()
call xt%bld(nc1,mold=x%v)
call yt%bld(nc2,mold=y%v)
xta = x%get_vect()
call xt%set(xta(1:nr1))
if (info == psb_success_) call psb_halo(xt,map%desc_Y,info,work=work)
if (info == psb_success_) call psb_csmm(sone,map%map_Y2X,xt,szero,yt,info)
if ((info == psb_success_) .and. map%desc_X%is_repl()) then
yta = yt%get_vect()
call psb_sum(ictxt,yta(1:nr2))
call yt%set(yta)
end if
if (info == psb_success_) call psb_geaxpby(alpha,yt,beta,y,map%desc_X,info)
if (info /= psb_success_) then
write(psb_err_unit,*) trim(name),' Error from inner routines',info
info = -1
end if
call xt%free(info)
call yt%free(info)
case default
write(psb_err_unit,*) trim(name),' Invalid descriptor input'
info = 1
return
end select
end subroutine psb_s_map_Y2X_vect
function psb_s_linmap(map_kind,desc_X, desc_Y, map_X2Y, map_Y2X,iaggr,naggr) &
& result(this)
use psb_base_mod, psb_protect_name => psb_s_linmap
implicit none
type(psb_slinmap_type) :: this
type(psb_desc_type), target :: desc_X, desc_Y
type(psb_sspmat_type), intent(inout) :: map_X2Y, map_Y2X
integer(psb_ipk_), intent(in) :: map_kind
integer(psb_ipk_), intent(in), optional :: iaggr(:), naggr(:)
!
integer(psb_ipk_) :: info
character(len=20), parameter :: name='psb_linmap'
info = psb_success_
select case(map_kind)
case (psb_map_aggr_)
! OK
if (psb_is_ok_desc(desc_X)) then
this%p_desc_X=>desc_X
else
info = psb_err_pivot_too_small_
endif
if (psb_is_ok_desc(desc_Y)) then
this%p_desc_Y=>desc_Y
else
info = psb_err_invalid_ovr_num_
endif
if (present(iaggr)) then
if (.not.present(naggr)) then
info = 7
else
allocate(this%iaggr(size(iaggr)),&
& this%naggr(size(naggr)), stat=info)
if (info == psb_success_) then
this%iaggr(:) = iaggr(:)
this%naggr(:) = naggr(:)
end if
end if
else
allocate(this%iaggr(0), this%naggr(0), stat=info)
end if
case(psb_map_gen_linear_)
if (desc_X%is_ok()) then
call psb_cdcpy(desc_X, this%desc_X,info)
else
info = psb_err_pivot_too_small_
endif
if (desc_Y%is_ok()) then
call psb_cdcpy(desc_Y, this%desc_Y,info)
else
info = psb_err_invalid_ovr_num_
endif
! For a general linear map ignore iaggr,naggr
allocate(this%iaggr(0), this%naggr(0), stat=info)
case default
write(psb_err_unit,*) 'Bad map kind into psb_linmap ',map_kind
info = 1
end select
if (info == psb_success_) call map_X2Y%clone(this%map_X2Y,info)
if (info == psb_success_) call map_Y2X%clone(this%map_Y2X,info)
if (info == psb_success_) then
call this%set_kind(map_kind)
end if
if (info /= psb_success_) then
write(psb_err_unit,*) trim(name),' Invalid descriptor input'
return
end if
end function psb_s_linmap