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298 lines
10 KiB
Fortran
298 lines
10 KiB
Fortran
!
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! Parallel Sparse BLAS version 3.5
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! (C) Copyright 2006-2018
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! Salvatore Filippone
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! Alfredo Buttari
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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_dvmlt.f90
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!!$
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!!$subroutine psb_dvmlt(x,y,desc_a,info)
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!!$ use psb_base_mod, psb_protect_name => psb_dvmlt
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!!$ implicit none
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!!$ type(psb_d_vect_type), intent (inout) :: x
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!!$ type(psb_d_vect_type), intent (inout) :: 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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!!$
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!!$ ! locals
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!!$ integer(psb_ipk_) :: ctxt, np, me,&
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!!$ & err_act, iix, jjx, iiy, jjy
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!!$ integer(psb_lpk_) :: ix, ijx, iy, ijy, m
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!!$ character(len=20) :: name, ch_err
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!!$
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!!$ name='psb_dgevmlt'
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!!$ if (psb_errstatus_fatal()) return
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!!$ info=psb_success_
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!!$ call psb_erractionsave(err_act)
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!!$
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!!$ ctxt=desc_a%get_context()
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!!$
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!!$ call psb_info(ctxt, 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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!!$ if (.not.allocated(x%v)) then
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!!$ info = psb_err_invalid_vect_state_
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!!$ call psb_errpush(info,name)
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!!$ goto 9999
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!!$ endif
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!!$ if (.not.allocated(y%v)) then
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!!$ info = psb_err_invalid_vect_state_
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!!$ call psb_errpush(info,name)
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!!$ goto 9999
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!!$ endif
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!!$
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!!$
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!!$ ix = ione
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!!$ iy = ione
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!!$
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!!$ m = desc_a%get_global_rows()
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!!$
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!!$ ! check vector correctness
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!!$ call psb_chkvect(m,lone,x%get_nrows(),ix,lone,desc_a,info,iix,jjx)
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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 1'
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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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!!$ call psb_chkvect(m,lone,y%get_nrows(),iy,lone,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 2'
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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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!!$
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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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!!$ end if
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!!$
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!!$ if(desc_a%get_local_rows() > 0) then
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!!$ call y%base_mlt_v(desc_a%get_local_rows(),&
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!!$ & alpha,x,beta,info)
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!!$ end if
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!!$
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!!$ call psb_erractionrestore(err_act)
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!!$ return
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!!$
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!!$9999 call psb_error_handler(ctxt,err_act)
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!!$
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!!$ return
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!!$
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!!$end subroutine psb_dvmlt
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!
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! Parallel Sparse BLAS version 3.5
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! (C) Copyright 2006-2018
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|
! 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
|
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! 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
|
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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_dvmlt.f90
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!
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! Function: psb_ddot_multivect
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! psb_dvmlta computes the inner product of two distributed multivectors,
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!
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! dot(:,:) := ( X(:,:) )**C * ( Y(:,:) )
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!
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!
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! Arguments:
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! x - type(psb_d_multivect_type) The input vector containing the entries of sub( X ).
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! y - type(psb_d_multivect_type) The input vector containing the entries of sub( 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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! global - logical(optional) Whether to perform the global sum, default: .true.
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!
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! Note: from a functional point of view, X and Y are input, but here
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! they are declared INOUT because of the sync() methods.
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!
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!
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subroutine psb_smlt_multivect(x, y, res,desc_a,info,global)
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use psb_desc_mod
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use psb_s_base_mat_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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use psb_s_multivect_mod
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use psb_s_psblas_mod, psb_protect_name => psb_dmlt_multivect
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implicit none
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real(psb_spk_), dimension(:,:), allocatable, intent(inout) :: res
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type(psb_s_multivect_type), intent(inout) :: 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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logical, intent(in), optional :: global
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! locals
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type(psb_ctxt_type) :: ctxt
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integer(psb_ipk_) :: np, me, idx, ndm,&
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& err_act, iix, jjx, iiy, jjy, i, nr
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integer(psb_lpk_) :: ix, ijx, iy, ijy, m, n, nx, ny
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logical :: global_
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character(len=20) :: name, ch_err
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name='psb_dmlt_multivect'
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info=psb_success_
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call psb_erractionsave(err_act)
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if (psb_errstatus_fatal()) then
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info = psb_err_internal_error_ ; goto 9999
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end if
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ctxt=desc_a%get_context()
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call psb_info(ctxt, 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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if (.not.allocated(x%v)) then
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info = psb_err_invalid_vect_state_
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call psb_errpush(info,name)
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goto 9999
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endif
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if (.not.allocated(y%v)) then
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info = psb_err_invalid_vect_state_
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call psb_errpush(info,name)
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goto 9999
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endif
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if (present(global)) then
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global_ = global
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else
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global_ = .true.
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end if
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ix = ione
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ijx = ione
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iy = ione
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ijy = ione
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m = desc_a%get_global_rows()
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nx = x%get_ncols()
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ny = y%get_ncols()
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! check vector correctness
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call psb_chkvect(m,nx,x%get_nrows(),ix,ijx,desc_a,info,iix,jjx)
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if (info == psb_success_) &
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& call psb_chkvect(m,ny,y%get_nrows(),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 (x%get_ncols() /= y%get_ncols()) then
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info=psb_err_invalid_vect_state_
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call psb_errpush(info,name)
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goto 9999
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else
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if (allocated(res)) then
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if ((size(res,1) /= x%get_ncols()).or.(size(res,2) /= y%get_ncols())) then
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deallocate(res,stat=info)
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end if
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end if
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end if
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nr = desc_a%get_local_rows()
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if(nr > 0) then
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call x%mlt(nr,y,res,info)
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! FIXME
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! adjust dot_local because overlapped elements are computed more than once
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if (size(desc_a%ovrlap_elem,1)>0) then
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if (x%is_dev()) call x%sync()
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if (y%is_dev()) call y%sync()
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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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! FIXME: case of AS-type descriptors
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! Since I'm coputing res via a dgemm on the whole vector, I need to adjust
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! the result by removing the contribution of the overlapped elements
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! specifically: res(:,:) = res(:,:) - x%v%v(idx,:)^T*y%v%v(idx,:)
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! using dgemm to compute the matrix-matrix product of the form R = R - X'*Y
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! where R is the result, X' is the transpose of the matrix x%v%v(idx,:)
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! and Y is the matrix y%v%v(idx,:)
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! call dgemm('T','N',size(x%v%v(idx,:),1),size(y%v%v(idx,:),1),&
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! & size(x%v%v(idx,:),1),-done,x%v%v(idx,:),size(x%v%v(idx,:),1),&
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! & y%v%v(idx,:),size(y%v%v(idx,:),1),done,res,y%get_ncols())
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info = psb_err_internal_error_
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ch_err='over_elem_unsup'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end do
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end if
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else
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res = dzero
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end if
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! compute global sum
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if (global_) call psb_sum(ctxt, res)
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(ctxt,err_act)
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return
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end subroutine psb_smlt_multivect
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