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/cuda/impl/psb_c_cuda_diag_vect_mv.F90

117 lines
4.1 KiB
Fortran

! Parallel Sparse BLAS GPU plugin
! (C) Copyright 2013
!
! Salvatore Filippone
! Alessandro Fanfarillo
!
! 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_c_cuda_diag_vect_mv(alpha,a,x,beta,y,info,trans)
use psb_base_mod
use diagdev_mod
use psb_vectordev_mod
use psb_c_cuda_diag_mat_mod, psb_protect_name => psb_c_cuda_diag_vect_mv
use psb_c_cuda_vect_mod
implicit none
class(psb_c_cuda_diag_sparse_mat), intent(in) :: a
complex(psb_spk_), intent(in) :: alpha, beta
class(psb_c_base_vect_type), intent(inout) :: x
class(psb_c_base_vect_type), intent(inout) :: y
integer(psb_ipk_), intent(out) :: info
character, optional, intent(in) :: trans
complex(psb_spk_), allocatable :: rx(:), ry(:)
logical :: tra
character :: trans_
Integer(Psb_ipk_) :: err_act
character(len=20) :: name='c_cuda_diag_vect_mv'
call psb_erractionsave(err_act)
info = psb_success_
if (present(trans)) then
trans_ = trans
else
trans_ = 'N'
end if
if (.not.a%is_asb()) then
info = psb_err_invalid_mat_state_
call psb_errpush(info,name)
goto 9999
endif
tra = (psb_toupper(trans_) == 'T').or.(psb_toupper(trans_)=='C')
if (tra) then
if (.not.x%is_host()) call x%sync()
if (beta /= szero) then
if (.not.y%is_host()) call y%sync()
end if
call a%psb_c_dia_sparse_mat%spmm(alpha,x,beta,y,info,trans)
call y%set_host()
else
if (a%is_host()) call a%sync()
select type (xx => x)
type is (psb_c_vect_cuda)
select type(yy => y)
type is (psb_c_vect_cuda)
if (xx%is_host()) call xx%sync()
if (beta /= dzero) then
if (yy%is_host()) call yy%sync()
end if
info = spmvDiagDevice(a%deviceMat,alpha,xx%deviceVect,&
& beta,yy%deviceVect)
if (info /= 0) then
call psb_errpush(psb_err_from_subroutine_ai_,name,&
& a_err='spmvDIAGDevice',i_err=(/info,izero,izero,izero,izero/))
info = psb_err_from_subroutine_ai_
goto 9999
end if
call yy%set_dev()
class default
rx = xx%get_vect()
ry = y%get_vect()
call a%spmm(alpha,rx,beta,ry,info)
call y%bld(ry)
end select
class default
rx = x%get_vect()
ry = y%get_vect()
call a%spmm(alpha,rx,beta,ry,info)
call y%bld(ry)
end select
end if
if (info /= 0) goto 9999
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine psb_c_cuda_diag_vect_mv