Working parallel (QR_fact serial)
gabrielequatrana
12 months ago
parent
d10631530f
commit
676652fcff
@ -0,0 +1,298 @@
|
||||
!
|
||||
! 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_dprod.f90
|
||||
!
|
||||
! Function: psb_dprod_multivect
|
||||
! psb_dprod computes the product of two distributed multivectors,
|
||||
!
|
||||
! prod := ( X ) * ( Y ) or
|
||||
! prod := ( X )**C * ( Y )
|
||||
!
|
||||
!
|
||||
! Arguments:
|
||||
! x - type(psb_d_multivect_type) The input vector containing the entries of sub( X ).
|
||||
! y - type(psb_d_multivect_type) The input vector containing the entries of sub( Y ).
|
||||
! desc_a - type(psb_desc_type). The communication descriptor.
|
||||
! info - integer. Return code
|
||||
! trans - logical(optional) Whether multivector X is transposed, default: .false.
|
||||
! global - logical(optional) Whether to perform the global reduce, default: .true.
|
||||
!
|
||||
! Note: from a functional point of view, X and Y are input, but here
|
||||
! they are declared INOUT because of the sync() methods.
|
||||
!
|
||||
!
|
||||
function psb_dprod_multivect(x,y,desc_a,info,trans,global) result(res)
|
||||
use psb_desc_mod
|
||||
use psb_d_base_mat_mod
|
||||
use psb_check_mod
|
||||
use psb_error_mod
|
||||
use psb_penv_mod
|
||||
use psb_d_vect_mod
|
||||
use psb_d_psblas_mod, psb_protect_name => psb_dprod_multivect
|
||||
implicit none
|
||||
real(psb_dpk_), allocatable :: res(:,:)
|
||||
type(psb_d_multivect_type), intent(inout) :: x, y
|
||||
type(psb_desc_type), intent(in) :: desc_a
|
||||
integer(psb_ipk_), intent(out) :: info
|
||||
logical, intent(in), optional :: trans
|
||||
logical, intent(in), optional :: global
|
||||
|
||||
! locals
|
||||
type(psb_ctxt_type) :: ctxt
|
||||
integer(psb_ipk_) :: np, me, idx, ndm,&
|
||||
& err_act, iix, jjx, iiy, jjy, i, j, nr
|
||||
integer(psb_lpk_) :: ix, ijx, iy, ijy, m
|
||||
logical :: global_, trans_
|
||||
character(len=20) :: name, ch_err
|
||||
|
||||
name='psb_dprod_multivect'
|
||||
info=psb_success_
|
||||
call psb_erractionsave(err_act)
|
||||
if (psb_errstatus_fatal()) then
|
||||
info = psb_err_internal_error_ ; goto 9999
|
||||
end if
|
||||
|
||||
ctxt=desc_a%get_context()
|
||||
call psb_info(ctxt, 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(trans)) then
|
||||
trans_ = trans
|
||||
else
|
||||
trans_ = .false.
|
||||
end if
|
||||
|
||||
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,x%get_ncols(),x%get_nrows(),ix,ijx,desc_a,info,iix,jjx)
|
||||
if (info == psb_success_) &
|
||||
& call psb_chkvect(m,y%get_ncols(),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%prod(nr,y,trans_)
|
||||
|
||||
! TODO adjust dot_local because overlapped elements are computed more than once
|
||||
if (size(desc_a%ovrlap_elem,1)>0) then
|
||||
if (x%v%is_dev()) call x%sync()
|
||||
if (y%v%is_dev()) call y%sync()
|
||||
do j=1,x%get_ncols()
|
||||
do i=1,size(desc_a%ovrlap_elem,1)
|
||||
idx = desc_a%ovrlap_elem(i,1)
|
||||
ndm = desc_a%ovrlap_elem(i,2)
|
||||
res(j,:) = res(j,:) - (real(ndm-1)/real(ndm))*(x%v%v(idx,:)*y%v%v(idx,:))
|
||||
end do
|
||||
end do
|
||||
end if
|
||||
else
|
||||
res = dzero
|
||||
end if
|
||||
|
||||
! TODO forse è meglio global false di default
|
||||
! compute global sum
|
||||
if (global_) call psb_sum(ctxt, res)
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 call psb_error_handler(ctxt,err_act)
|
||||
|
||||
return
|
||||
|
||||
end function psb_dprod_multivect
|
||||
!
|
||||
! Function: psb_dprod_multivect_a
|
||||
! psb_dprod computes the product of two distributed multivectors,
|
||||
!
|
||||
! prod := ( X ) * ( Y ) or
|
||||
! prod := ( X )**C * ( Y )
|
||||
!
|
||||
!
|
||||
! Arguments:
|
||||
! x - type(psb_d_multivect_type) 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
|
||||
! trans - logical(optional) Whether multivector X is transposed, default: .false.
|
||||
! global - logical(optional) Whether to perform the global reduce, default: .true.
|
||||
!
|
||||
! Note: from a functional point of view, X and Y are input, but here
|
||||
! they are declared INOUT because of the sync() methods.
|
||||
!
|
||||
!
|
||||
function psb_dprod_multivect_a(x,y,desc_a,info,trans,global) result(res)
|
||||
use psb_desc_mod
|
||||
use psb_d_base_mat_mod
|
||||
use psb_check_mod
|
||||
use psb_error_mod
|
||||
use psb_penv_mod
|
||||
use psb_d_vect_mod
|
||||
use psb_d_psblas_mod, psb_protect_name => psb_dprod_multivect_a
|
||||
implicit none
|
||||
real(psb_dpk_), allocatable :: res(:,:)
|
||||
type(psb_d_multivect_type), intent(inout) :: x
|
||||
real(psb_dpk_), intent(in) :: y(:,:)
|
||||
type(psb_desc_type), intent(in) :: desc_a
|
||||
integer(psb_ipk_), intent(out) :: info
|
||||
logical, intent(in), optional :: trans
|
||||
logical, intent(in), optional :: global
|
||||
|
||||
! locals
|
||||
type(psb_ctxt_type) :: ctxt
|
||||
integer(psb_ipk_) :: np, me, idx, ndm,&
|
||||
& err_act, iix, jjx, iiy, jjy, i, j, nr
|
||||
integer(psb_lpk_) :: ix, ijx, iy, ijy, m
|
||||
logical :: global_, trans_
|
||||
character(len=20) :: name, ch_err
|
||||
|
||||
name='psb_dprod_multivect'
|
||||
info=psb_success_
|
||||
call psb_erractionsave(err_act)
|
||||
if (psb_errstatus_fatal()) then
|
||||
info = psb_err_internal_error_ ; goto 9999
|
||||
end if
|
||||
|
||||
ctxt=desc_a%get_context()
|
||||
call psb_info(ctxt, 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 (present(trans)) then
|
||||
trans_ = trans
|
||||
else
|
||||
trans_ = .false.
|
||||
end if
|
||||
|
||||
if (present(global)) then
|
||||
global_ = global
|
||||
else
|
||||
global_ = .true.
|
||||
end if
|
||||
|
||||
ix = ione
|
||||
ijx = ione
|
||||
|
||||
m = desc_a%get_global_rows()
|
||||
|
||||
! check vector correctness
|
||||
call psb_chkvect(m,x%get_ncols(),x%get_nrows(),ix,ijx,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
|
||||
|
||||
if ((iix /= 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%prod(nr,y,trans_)
|
||||
|
||||
! TODO adjust dot_local because overlapped elements are computed more than once
|
||||
if (size(desc_a%ovrlap_elem,1)>0) then
|
||||
if (x%v%is_dev()) call x%sync()
|
||||
do j=1,x%get_ncols()
|
||||
do i=1,size(desc_a%ovrlap_elem,1)
|
||||
idx = desc_a%ovrlap_elem(i,1)
|
||||
ndm = desc_a%ovrlap_elem(i,2)
|
||||
res(j,:) = res(j,:) - (real(ndm-1)/real(ndm))*(x%v%v(idx,:)*y(idx,:))
|
||||
end do
|
||||
end do
|
||||
end if
|
||||
else
|
||||
res = dzero
|
||||
end if
|
||||
|
||||
! TODO
|
||||
! compute global sum
|
||||
if (global_) call psb_sum(ctxt, res)
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 call psb_error_handler(ctxt,err_act)
|
||||
|
||||
return
|
||||
|
||||
end function psb_dprod_multivect_a
|
||||
Loading…
Reference in New Issue