Delete obsolete file base/psblas/psb_sxdot.f90
Salvatore Filippone
7 years ago
parent
c3633b6fb2
commit
2cc244433e
@ -1,589 +0,0 @@
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!
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! Parallel Sparse BLAS version 3.5
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! (C) Copyright 2006, 2010, 2015, 2017
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! Salvatore Filippone Cranfield University
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! Alfredo Buttari CNRS-IRIT, Toulouse
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions
|
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! are met:
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! 1. Redistributions of source code must retain the above copyright
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! notice, this list of conditions and the following disclaimer.
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! 2. Redistributions in binary form must reproduce the above copyright
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! notice, this list of conditions, and the following disclaimer in the
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! documentation and/or other materials provided with the distribution.
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! 3. The name of the PSBLAS group or the names of its contributors may
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! not be used to endorse or promote products derived from this
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! software without specific written permission.
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!
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! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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! ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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! TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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! POSSIBILITY OF SUCH DAMAGE.
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!
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!
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! File: psb_sdot.f90
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!
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! Function: psb_sdot
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! psb_sdot forms the dot product of two distributed vectors,
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!
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! dot := sub( X )**T * sub( Y )
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!
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! where sub( X ) denotes X(:,JX)
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!
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! sub( Y ) denotes Y(:,JY).
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!
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! Arguments:
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! x(:,:) - real The input vector containing the entries of ( X ).
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! y(:,:) - real The input vector containing the entries of ( Y ).
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! desc_a - type(psb_desc_type). The communication descriptor.
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! info - integer. Return code
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! jx - integer(optional). The column offset for sub( X ).
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! jy - integer(optional). The column offset for sub( Y ).
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!
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function psb_sxdot(x, y,desc_a, info, jx, jy)
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use psb_desc_mod
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use psb_check_mod
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use psb_error_mod
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use psb_penv_mod
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implicit none
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real(psb_spk_), intent(in) :: x(:,:), y(:,:)
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type(psb_desc_type), intent(in) :: desc_a
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integer(psb_ipk_), intent(in), optional :: jx, jy
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integer(psb_ipk_), intent(out) :: info
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real(psb_dpk_) :: psb_sxdot
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! locals
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integer(psb_ipk_) :: ictxt, np, me, idx, ndm,&
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& err_act, iix, jjx, ix, ijx, iy, ijy, iiy, jjy, i, m
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real(psb_dpk_) :: dot_local
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real(psb_dpk_) :: sxdot
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character(len=20) :: name, ch_err
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name='psb_sdot'
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if(psb_get_errstatus() /= 0) return
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info=psb_success_
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call psb_erractionsave(err_act)
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ictxt=desc_a%get_context()
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call psb_info(ictxt, me, np)
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if (np == -ione) then
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info = psb_err_context_error_
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call psb_errpush(info,name)
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goto 9999
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endif
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ix = ione
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if (present(jx)) then
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ijx = jx
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else
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ijx = ione
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endif
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iy = ione
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if (present(jy)) then
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ijy = jy
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else
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ijy = ione
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endif
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if(ijx /= ijy) then
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info=3050
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call psb_errpush(info,name)
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goto 9999
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end if
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m = desc_a%get_global_rows()
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! check vector correctness
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call psb_chkvect(m,ione,size(x,1),ix,ijx,desc_a,info,iix,jjx)
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if (info == psb_success_) &
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& call psb_chkvect(m,ione,size(y,1),iy,ijy,desc_a,info,iiy,jjy)
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if(info /= psb_success_) then
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info=psb_err_from_subroutine_
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ch_err='psb_chkvect'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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if ((iix /= ione).or.(iiy /= ione)) then
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info=psb_err_ix_n1_iy_n1_unsupported_
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call psb_errpush(info,name)
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goto 9999
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end if
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if(m /= 0) then
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if(desc_a%get_local_rows() > 0) then
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dot_local = sxdot(desc_a%get_local_rows(),&
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& x(iix,jjx),ione,y(iiy,jjy),ione)
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! adjust dot_local because overlapped elements are computed more than once
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do i=1,size(desc_a%ovrlap_elem,1)
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idx = desc_a%ovrlap_elem(i,1)
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ndm = desc_a%ovrlap_elem(i,2)
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dot_local = dot_local - (real(ndm-1)/real(ndm))*(x(idx,jjx)*y(idx,jjy))
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end do
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else
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dot_local=0.0
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end if
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else
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dot_local=0.0
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end if
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! compute global sum
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call psb_sum(ictxt, dot_local)
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psb_sxdot = dot_local
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error(ictxt)
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return
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end if
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return
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end function psb_sxdot
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!!$
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!!$ Parallel Sparse BLAS version 3.5
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!!$ (C) Copyright 2006, 2010, 2015, 2017
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!!$ Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari CNRS-IRIT, Toulouse
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!!$
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!!$ Redistribution and use in source and binary forms, with or without
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!!$ modification, are permitted provided that the following conditions
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!!$ are met:
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!!$ 1. Redistributions of source code must retain the above copyright
|
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!!$ notice, this list of conditions and the following disclaimer.
|
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!!$ 2. Redistributions in binary form must reproduce the above copyright
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!!$ notice, this list of conditions, and the following disclaimer in the
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!!$ documentation and/or other materials provided with the distribution.
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!!$ 3. The name of the PSBLAS group or the names of its contributors may
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!!$ not be used to endorse or promote products derived from this
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!!$ software without specific written permission.
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!!$
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!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
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!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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!!$ POSSIBILITY OF SUCH DAMAGE.
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!!$
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!!$
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!
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! Function: psb_sdotv
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! psb_sdotv forms the dot product of two distributed vectors,
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!
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! dot := X**T * Y
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!
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! Arguments:
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! x(:) - real The input vector containing the entries of X.
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! y(:) - real The input vector containing the entries of Y.
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! desc_a - type(psb_desc_type). The communication descriptor.
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! info - integer. Return code
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!
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function psb_sxdotv(x, y,desc_a, info)
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use psb_desc_mod
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use psb_check_mod
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use psb_error_mod
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use psb_penv_mod
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implicit none
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real(psb_spk_), intent(in) :: x(:), y(:)
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type(psb_desc_type), intent(in) :: desc_a
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integer(psb_ipk_), intent(out) :: info
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real(psb_dpk_) :: psb_sxdotv
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! locals
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integer(psb_ipk_) :: ictxt, np, me, idx, ndm,&
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& err_act, iix, jjx, ix, jx, iy, jy, iiy, jjy, i, m
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real(psb_dpk_) :: dot_local
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real(psb_dpk_) :: sxdot
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character(len=20) :: name, ch_err
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name='psb_sdot'
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if(psb_get_errstatus() /= 0) return
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info=psb_success_
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call psb_erractionsave(err_act)
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ictxt=desc_a%get_context()
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call psb_info(ictxt, me, np)
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if (np == -ione) then
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info = psb_err_context_error_
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call psb_errpush(info,name)
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goto 9999
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endif
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ix = ione
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iy = ione
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jx = ione
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jy = ione
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m = desc_a%get_global_rows()
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! check vector correctness
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call psb_chkvect(m,ione,size(x,1),ix,jx,desc_a,info,iix,jjx)
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if (info == psb_success_) &
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& call psb_chkvect(m,ione,size(y,1),iy,jy,desc_a,info,iiy,jjy)
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if(info /= psb_success_) then
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info=psb_err_from_subroutine_
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ch_err='psb_chkvect'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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if ((iix /= ione).or.(iiy /= ione)) then
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info=psb_err_ix_n1_iy_n1_unsupported_
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call psb_errpush(info,name)
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goto 9999
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end if
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if(m /= 0) then
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if(desc_a%get_local_rows() > 0) then
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dot_local = sxdot(desc_a%get_local_rows(),&
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& x,ione,y,ione)
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! adjust dot_local because overlapped elements are computed more than once
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do i=1,size(desc_a%ovrlap_elem,1)
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idx = desc_a%ovrlap_elem(i,1)
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ndm = desc_a%ovrlap_elem(i,2)
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dot_local = dot_local - (real(ndm-1)/real(ndm))*(x(idx)*y(idx))
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end do
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else
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dot_local=0.0
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end if
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else
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dot_local=0.0
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end if
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! compute global sum
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call psb_sum(ictxt, dot_local)
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psb_sxdotv = dot_local
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error(ictxt)
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return
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end if
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return
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end function psb_sxdotv
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function sxdot(n,x,ix,y,iy)
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use psb_const_mod
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real(psb_dpk_) :: sxdot
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integer(psb_ipk_) :: n,ix,iy
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real(psb_spk_) :: x(*),y(*)
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real(psb_dpk_) :: tmp
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integer(psb_ipk_) :: i
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if ((ix /= 1).or.(iy /= 1)) then
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write(psb_err_unit,*) 'WARNING unimplemented case in SXDOT'
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sxdot=dzero
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return
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end if
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tmp = dzero
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do i=1, n
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tmp = tmp + dble(x(i))*dble(y(i))
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end do
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sxdot = tmp
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end function sxdot
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!!$
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!!$ Parallel Sparse BLAS version 3.5
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!!$ (C) Copyright 2006, 2010, 2015, 2017
|
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!!$ Salvatore Filippone University of Rome Tor Vergata
|
|
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!!$ Alfredo Buttari CNRS-IRIT, Toulouse
|
|
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!!$
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!!$ 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.
|
|
||||||
!!$
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!!$
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!
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! Subroutine: psb_sdotvs
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! psb_sdotvs forms the dot product of two distributed vectors,
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!
|
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! dot := X**T * Y
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!
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! Arguments:
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! res - real The result.
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! x(:) - real The input vector containing the entries of X.
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! y(:) - real The input vector containing the entries of Y.
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! desc_a - type(psb_desc_type). The communication descriptor.
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! info - integer. Return code
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!
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subroutine psb_sxdotvs(res, x, y,desc_a, info)
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use psb_base_mod, psb_protect_name => psb_sxdotvs
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implicit none
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real(psb_spk_), intent(in) :: x(:), y(:)
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|
||||||
real(psb_dpk_), intent(out) :: res
|
|
||||||
type(psb_desc_type), intent(in) :: desc_a
|
|
||||||
integer(psb_ipk_), intent(out) :: info
|
|
||||||
|
|
||||||
! locals
|
|
||||||
integer(psb_ipk_) :: ictxt, np, me, idx, ndm,&
|
|
||||||
& err_act, iix, jjx, ix, iy, iiy, jjy, i, m
|
|
||||||
real(psb_dpk_) :: dot_local
|
|
||||||
real(psb_dpk_) :: sxdot
|
|
||||||
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
|
|
||||||
iy = ione
|
|
||||||
m = desc_a%get_global_rows()
|
|
||||||
! check vector correctness
|
|
||||||
call psb_chkvect(m,ione,size(x,1),ix,ix,desc_a,info,iix,jjx)
|
|
||||||
if (info == psb_success_) &
|
|
||||||
& call psb_chkvect(m,ione,size(y,1),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
|
|
||||||
|
|
||||||
if(m /= 0) then
|
|
||||||
if(desc_a%get_local_rows() > 0) then
|
|
||||||
dot_local = sxdot(desc_a%get_local_rows(),&
|
|
||||||
& x,ione,y,ione)
|
|
||||||
! 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)
|
|
||||||
dot_local = dot_local - (real(ndm-1)/real(ndm))*(x(idx)*y(idx))
|
|
||||||
end do
|
|
||||||
else
|
|
||||||
dot_local=0.0
|
|
||||||
end if
|
|
||||||
else
|
|
||||||
dot_local=0.0
|
|
||||||
end if
|
|
||||||
|
|
||||||
! compute global sum
|
|
||||||
call psb_sum(ictxt, dot_local)
|
|
||||||
|
|
||||||
res = dot_local
|
|
||||||
|
|
||||||
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_sxdotvs
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
!!$
|
|
||||||
!!$ Parallel Sparse BLAS version 3.5
|
|
||||||
!!$ (C) Copyright 2006, 2010, 2015, 2017
|
|
||||||
!!$ 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.
|
|
||||||
!!$
|
|
||||||
!!$
|
|
||||||
!
|
|
||||||
! Subroutine: psb_smdots
|
|
||||||
! psb_smdots forms the dot product of multiple distributed vectors,
|
|
||||||
!
|
|
||||||
! res(i) := ( X(:,i) )**T * ( Y(:,i) )
|
|
||||||
!
|
|
||||||
! 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_sxmdots(res, x, y, desc_a, info)
|
|
||||||
use psb_base_mod, psb_protect_name => psb_sxmdots
|
|
||||||
implicit none
|
|
||||||
|
|
||||||
real(psb_spk_), intent(in) :: x(:,:), y(:,:)
|
|
||||||
real(psb_dpk_), intent(out) :: res(:)
|
|
||||||
type(psb_desc_type), intent(in) :: desc_a
|
|
||||||
integer(psb_ipk_), intent(out) :: info
|
|
||||||
|
|
||||||
! locals
|
|
||||||
integer(psb_ipk_) :: ictxt, np, me, idx, ndm,&
|
|
||||||
& err_act, iix, jjx, ix, iy, iiy, jjy, i, m, j, k
|
|
||||||
real(psb_dpk_),allocatable :: dot_local(:)
|
|
||||||
real(psb_dpk_) :: sxdot
|
|
||||||
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
|
|
||||||
|
|
||||||
ix = ione
|
|
||||||
iy = ione
|
|
||||||
|
|
||||||
m = desc_a%get_global_rows()
|
|
||||||
|
|
||||||
! check vector correctness
|
|
||||||
call psb_chkvect(m,ione,size(x,1),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,size(y,1),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))
|
|
||||||
allocate(dot_local(k))
|
|
||||||
|
|
||||||
if(m /= 0) then
|
|
||||||
if(desc_a%get_local_rows() > 0) then
|
|
||||||
do j=1,k
|
|
||||||
dot_local(j) = sxdot(desc_a%get_local_rows(),&
|
|
||||||
& x(1,j),ione,y(1,j),ione)
|
|
||||||
! adjust dot_local 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)
|
|
||||||
dot_local(1:k) = dot_local(1:k) - (real(ndm-1)/real(ndm))*(x(idx,1:k)*y(idx,1:k))
|
|
||||||
end do
|
|
||||||
else
|
|
||||||
dot_local(:)=0.0
|
|
||||||
end if
|
|
||||||
else
|
|
||||||
dot_local(:)=0.0
|
|
||||||
end if
|
|
||||||
|
|
||||||
! compute global sum
|
|
||||||
call psb_sum(ictxt, dot_local(1:k))
|
|
||||||
|
|
||||||
res(1:k) = dot_local(1:k)
|
|
||||||
|
|
||||||
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_sxmdots
|
|
||||||
Loading…
Reference in New Issue