!
! 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_sdot.f90
!
! Function: psb_sdot
! psb_sdot forms the dot product of two distributed vectors,
!
! dot := sub( X )**C * sub( Y )
!
! where sub( X ) denotes X(:,JX)
!
! sub( Y ) denotes Y(:,JY).
!
! Arguments:
! x(:,:) - complex The input vector containing the entries of sub( X ).
! y(:,:) - complex The input vector containing the entries of sub( Y ).
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The column offset for sub( X ).
! jy - integer(optional). The column offset for sub( Y ).
!
function psb_sdot_vect(x, y, desc_a,info,global) result(res)
use psb_desc_mod
use psb_s_base_mat_mod
use psb_check_mod
use psb_error_mod
use psb_penv_mod
use psb_s_vect_mod
use psb_s_psblas_mod, psb_protect_name => psb_sdot_vect
implicit none
real(psb_spk_) :: res
type(psb_s_vect_type), intent(inout) :: x, y
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_), intent(out) :: info
logical, intent(in), optional :: global
! locals
integer(psb_ipk_) :: ictxt, np, me, idx, ndm,&
& err_act, iix, jjx, ix, ijx, iy, ijy, iiy, jjy, i, m, nr
logical :: global_
character(len=20) :: name, ch_err
name='psb_sdot_vect'
res = szero
if (psb_errstatus_fatal()) return
info=psb_success_
call psb_erractionsave(err_act)
ictxt=desc_a%get_context()
call psb_info(ictxt, me, np)
if (np == -ione) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
if (.not.allocated(x%v)) then
info = psb_err_invalid_vect_state_
call psb_errpush(info,name)
goto 9999
endif
if (.not.allocated(y%v)) then
info = psb_err_invalid_vect_state_
call psb_errpush(info,name)
goto 9999
endif
if (present(global)) then
global_ = global
else
global_ = .true.
end if
ix = ione
ijx = ione
iy = ione
ijy = ione
m = desc_a%get_global_rows()
! check vector correctness
call psb_chkvect(m,ione,x%get_nrows(),ix,ijx,desc_a,info,iix,jjx)
if (info == psb_success_) &
& call psb_chkvect(m,ione,y%get_nrows(),iy,ijy,desc_a,info,iiy,jjy)
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
if ((iix /= ione).or.(iiy /= ione)) then
info=psb_err_ix_n1_iy_n1_unsupported_
call psb_errpush(info,name)
goto 9999
end if
nr = desc_a%get_local_rows()
if(nr > 0) then
res = x%dot(nr,y)
! FIXME
! adjust dot_local because overlapped elements are computed more than once
if (size(desc_a%ovrlap_elem,1)>0) then
if (x%is_dev()) call x%sync()
if (y%is_dev()) call y%sync()
do i=1,size(desc_a%ovrlap_elem,1)
idx = desc_a%ovrlap_elem(i,1)
ndm = desc_a%ovrlap_elem(i,2)
res = res - (real(ndm-1)/real(ndm))*(x%v%v(idx)*y%v%v(idx))
end do
end if
else
res = szero
end if
! compute global sum
if (global_) call psb_sum(ictxt, res)
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
end function psb_sdot_vect
function psb_sdot(x, y,desc_a, info, jx, jy,global) result(res)
use psb_base_mod, psb_protect_name => psb_sdot
implicit none
real(psb_spk_), intent(in) :: x(:,:), y(:,:)
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_), intent(in), optional :: jx, jy
integer(psb_ipk_), intent(out) :: info
real(psb_spk_) :: res
logical, intent(in), optional :: global
! locals
integer(psb_ipk_) :: ictxt, np, me, idx, ndm,&
& err_act, iix, jjx, ix, ijx, iy, ijy, iiy, jjy, i, m, nr, &
& lldx, lldy
real(psb_spk_) :: sdot
logical :: global_
character(len=20) :: name, ch_err
name='psb_sdot'
if(psb_get_errstatus() /= 0) return
info=psb_success_
call psb_erractionsave(err_act)
ictxt=desc_a%get_context()
call psb_info(ictxt, me, np)
if (np == -ione) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
ix = ione
if (present(jx)) then
ijx = jx
else
ijx = ione
endif
iy = ione
if (present(jy)) then
ijy = jy
else
ijy = ione
endif
if(ijx /= ijy) then
info=3050
call psb_errpush(info,name)
goto 9999
end if
if (present(global)) then
global_ = global
else
global_ = .true.
end if
m = desc_a%get_global_rows()
lldx = size(x,1)
lldy = size(y,1)
! check vector correctness
call psb_chkvect(m,ione,lldx,ix,ijx,desc_a,info,iix,jjx)
if (info == psb_success_) &
& call psb_chkvect(m,ione,lldy,iy,ijy,desc_a,info,iiy,jjy)
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
if ((iix /= ione).or.(iiy /= ione)) then
info=psb_err_ix_n1_iy_n1_unsupported_
call psb_errpush(info,name)
goto 9999
end if
nr = desc_a%get_local_rows()
if(nr > 0) then
res = sdot(int(nr,kind=psb_mpik_), x(iix:,jjx),1,y(iiy:,jjy),1)
! adjust dot_local because overlapped elements are computed more than once
do i=1,size(desc_a%ovrlap_elem,1)
idx = desc_a%ovrlap_elem(i,1)
ndm = desc_a%ovrlap_elem(i,2)
res = res - (real(ndm-1)/real(ndm))*((x(idx,jjx))*y(idx,jjy))
end do
else
res = szero
end if
! compute global sum
if (global_) call psb_sum(ictxt, res)
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
end function psb_sdot
!!$
!!$ 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.
!!$
!!$
!
! Function: psb_sdotv
! psb_sdotv forms the dot product of two distributed vectors,
!
! dot := X**C * Y
!
! Arguments:
! x(:) - real The input vector containing the entries of X.
! y(:) - real The input vector containing the entries of Y.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
!
function psb_sdotv(x, y,desc_a, info,global) result(res)
use psb_base_mod, psb_protect_name => psb_sdotv
implicit none
real(psb_spk_), intent(in) :: x(:), y(:)
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_), intent(out) :: info
real(psb_spk_) :: res
logical, intent(in), optional :: global
! locals
integer(psb_ipk_) :: ictxt, np, me, idx, ndm,&
& err_act, iix, jjx, ix, jx, iy, jy, iiy, jjy, i, m, nr, &
& lldx, lldy
logical :: global_
real(psb_spk_) :: sdot
character(len=20) :: name, ch_err
name='psb_sdot'
if(psb_get_errstatus() /= 0) return
info=psb_success_
call psb_erractionsave(err_act)
ictxt=desc_a%get_context()
call psb_info(ictxt, me, np)
if (np == -ione) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
if (present(global)) then
global_ = global
else
global_ = .true.
end if
ix = ione
iy = ione
jx = ione
jy = ione
m = desc_a%get_global_rows()
lldx = size(x,1)
lldy = size(y,1)
! check vector correctness
call psb_chkvect(m,ione,lldx,ix,jx,desc_a,info,iix,jjx)
if (info == psb_success_)&
& call psb_chkvect(m,ione,lldy,iy,jy,desc_a,info,iiy,jjy)
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
if ((iix /= ione).or.(iiy /= ione)) then
info=psb_err_ix_n1_iy_n1_unsupported_
call psb_errpush(info,name)
goto 9999
end if
nr = desc_a%get_local_rows()
if(nr > 0) then
res = sdot(int(nr,kind=psb_mpik_), x,1,y,1)
! adjust res because overlapped elements are computed more than once
do i=1,size(desc_a%ovrlap_elem,1)
idx = desc_a%ovrlap_elem(i,1)
ndm = desc_a%ovrlap_elem(i,2)
res = res - (real(ndm-1)/real(ndm))*((x(idx))*y(idx))
end do
else
res = szero
end if
! compute global sum
if (global_) call psb_sum(ictxt, res)
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
end function psb_sdotv
!!$
!!$ 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_sdotvs
! psb_sdotvs forms the dot product of two distributed vectors,
!
! res := X**C * Y
!
! Arguments:
! res - real. The result.
! x(:) - real The input vector containing the entries of X.
! y(:) - real The input vector containing the entries of Y.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
!
subroutine psb_sdotvs(res, x, y,desc_a, info,global)
use psb_base_mod, psb_protect_name => psb_sdotvs
implicit none
real(psb_spk_), intent(in) :: x(:), y(:)
real(psb_spk_), intent(out) :: res
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_), intent(out) :: info
logical, intent(in), optional :: global
! locals
integer(psb_ipk_) :: ictxt, np, me, idx, ndm,&
& err_act, iix, jjx, ix, iy, iiy, jjy, i, m,nr, &
& lldx, lldy
logical :: global_
real(psb_spk_) :: sdot
character(len=20) :: name, ch_err
name='psb_sdot'
if(psb_get_errstatus() /= 0) return
info=psb_success_
call psb_erractionsave(err_act)
ictxt=desc_a%get_context()
call psb_info(ictxt, me, np)
if (np == -ione) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
if (present(global)) then
global_ = global
else
global_ = .true.
end if
ix = ione
iy = ione
m = desc_a%get_global_rows()
lldx = size(x,1)
lldy = size(y,1)
! check vector correctness
call psb_chkvect(m,ione,lldx,ix,ix,desc_a,info,iix,jjx)
if (info == psb_success_) &
& call psb_chkvect(m,ione,lldy,iy,iy,desc_a,info,iiy,jjy)
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
if ((iix /= ione).or.(iiy /= ione)) then
info=psb_err_ix_n1_iy_n1_unsupported_
call psb_errpush(info,name)
goto 9999
end if
nr = desc_a%get_local_rows()
if(nr > 0) then
res = sdot(int(nr,kind=psb_mpik_), x,1,y,1)
! adjust res because overlapped elements are computed more than once
do i=1,size(desc_a%ovrlap_elem,1)
idx = desc_a%ovrlap_elem(i,1)
ndm = desc_a%ovrlap_elem(i,2)
res = res - (real(ndm-1)/real(ndm))*((x(idx))*y(idx))
end do
else
res = szero
end if
! compute global sum
if (global_) call psb_sum(ictxt, res)
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
end subroutine psb_sdotvs
!!$
!!$ 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_smdots
! psb_smdots forms the dot product of multiple distributed vectors,
!
! res(i) := ( X(:,i) )**C * ( Y(:,i) )
!
! Arguments:
! res(:) - real. The result.
! x(:) - real The input vector containing the entries of sub( X ).
! y(:) - real The input vector containing the entries of sub( Y ).
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
!
subroutine psb_smdots(res, x, y, desc_a, info,global)
use psb_base_mod, psb_protect_name => psb_smdots
implicit none
real(psb_spk_), intent(in) :: x(:,:), y(:,:)
real(psb_spk_), intent(out) :: res(:)
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_), intent(out) :: info
logical, intent(in), optional :: global
! locals
integer(psb_ipk_) :: ictxt, np, me, idx, ndm,&
& err_act, iix, jjx, ix, iy, iiy, jjy, i, m, j, k, nr, &
& lldx, lldy
logical :: global_
real(psb_spk_) :: sdot
character(len=20) :: name, ch_err
name='psb_smdots'
if(psb_get_errstatus() /= 0) return
info=psb_success_
call psb_erractionsave(err_act)
ictxt=desc_a%get_context()
call psb_info(ictxt, me, np)
if (np == -ione) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
if (present(global)) then
global_ = global
else
global_ = .true.
end if
ix = ione
iy = ione
m = desc_a%get_global_rows()
lldx = size(x,1)
lldy = size(y,1)
! check vector correctness
call psb_chkvect(m,ione,lldx,ix,ix,desc_a,info,iix,jjx)
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
call psb_chkvect(m,ione,lldy,iy,iy,desc_a,info,iiy,jjy)
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
if ((ix /= ione).or.(iy /= ione)) then
info=psb_err_ix_n1_iy_n1_unsupported_
call psb_errpush(info,name)
goto 9999
end if
k = min(size(x,2),size(y,2))
nr = desc_a%get_local_rows()
if(nr > 0) then
do j=1,k
res(j) = sdot(int(nr,kind=psb_mpik_),x(1:,j),1,y(1:,j),1)
! adjust res because overlapped elements are computed more than once
end do
do i=1,size(desc_a%ovrlap_elem,1)
idx = desc_a%ovrlap_elem(i,1)
ndm = desc_a%ovrlap_elem(i,2)
res(1:k) = res(1:k) - &
& (real(ndm-1)/real(ndm))*((x(idx,1:k))*y(idx,1:k))
end do
else
res(:) = szero
end if
! compute global sum
if (global_) call psb_sum(ictxt, res(1:k))
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
end subroutine psb_smdots