You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
psblas3/base/comm/internals/psi_zovrl_restr.f90

123 lines
4.0 KiB
Fortran

!
! 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.
!
!
! Subroutine: psi_zovrl_restr
! These subroutines restore the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
!
subroutine psi_zovrl_restr_vect(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_zovrl_restr_vect
use psb_z_base_vect_mod
implicit none
class(psb_z_base_vect_type) :: x
complex(psb_dpk_) :: xs(:)
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_), intent(out) :: info
! locals
type(psb_ctxt_type) :: ctxt
integer(psb_ipk_) :: np, me, err_act, i, idx, isz
character(len=20) :: name, ch_err
name='psi_zovrl_restr_vect'
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 == -1) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
isz = size(desc_a%ovrlap_elem,1)
call x%sct(isz,desc_a%ovrlap_elem(:,1),xs,zzero)
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ctxt,err_act)
return
end subroutine psi_zovrl_restr_vect
subroutine psi_zovrl_restr_multivect(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_zovrl_restr_multivect
use psb_z_base_vect_mod
implicit none
class(psb_z_base_multivect_type) :: x
complex(psb_dpk_) :: xs(:,:)
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_), intent(out) :: info
! locals
type(psb_ctxt_type) :: ctxt
integer(psb_ipk_) :: np, me, err_act, i, idx, isz, nc
character(len=20) :: name, ch_err
name='psi_zovrl_restr_mv'
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 == -1) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
isz = size(desc_a%ovrlap_elem,1)
call x%sct(isz,desc_a%ovrlap_elem(:,1),xs,zzero)
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ctxt,err_act)
return
end subroutine psi_zovrl_restr_multivect