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84 lines
2.4 KiB
Fortran
84 lines
2.4 KiB
Fortran
submodule (psb_c_oacc_csr_mat_mod) psb_c_oacc_csr_inner_vect_sv_impl
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use psb_base_mod
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contains
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module subroutine psb_c_oacc_csr_inner_vect_sv(alpha, a, x, beta, y, info, trans)
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implicit none
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class(psb_c_oacc_csr_sparse_mat), intent(in) :: a
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complex(psb_spk_), intent(in) :: alpha, beta
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class(psb_c_base_vect_type), intent(inout) :: x, y
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integer(psb_ipk_), intent(out) :: info
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character, optional, intent(in) :: trans
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complex(psb_spk_), allocatable :: rx(:), ry(:)
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logical :: tra
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character :: trans_
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integer(psb_ipk_) :: err_act
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character(len=20) :: name = 'c_oacc_csr_inner_vect_sv'
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logical, parameter :: debug = .false.
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integer(psb_ipk_) :: i
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call psb_get_erraction(err_act)
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info = psb_success_
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if (present(trans)) then
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trans_ = trans
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else
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trans_ = 'N'
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end if
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if (.not.a%is_asb()) then
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info = psb_err_invalic_mat_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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tra = (psb_toupper(trans_) == 'T') .or. (psb_toupper(trans_) == 'C')
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if (tra .or. (beta /= dzero)) then
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call x%sync()
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call y%sync()
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call a%psb_c_csr_sparse_mat%inner_spsm(alpha, x, beta, y, info, trans)
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call y%set_host()
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else
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select type (xx => x)
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type is (psb_c_vect_oacc)
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select type(yy => y)
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type is (psb_c_vect_oacc)
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if (xx%is_host()) call xx%sync()
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if (beta /= dzero) then
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if (yy%is_host()) call yy%sync()
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end if
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!$acc parallel loop present(a, xx, yy)
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do i = 1, size(a%val)
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yy%v(i) = alpha * a%val(i) * xx%v(a%ja(i)) + beta * yy%v(i)
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end do
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call yy%set_dev()
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class default
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rx = xx%get_vect()
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ry = y%get_vect()
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call a%psb_c_csr_sparse_mat%inner_spsm(alpha, rx, beta, ry, info)
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call y%bld(ry)
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end select
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class default
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rx = x%get_vect()
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ry = y%get_vect()
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call a%psb_c_csr_sparse_mat%inner_spsm(alpha, rx, beta, ry, info)
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call y%bld(ry)
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end select
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endif
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if (info /= psb_success_) then
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info = psb_err_from_subroutine_
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call psb_errpush(info, name, a_err = 'csrg_vect_sv')
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goto 9999
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endif
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(err_act)
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return
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end subroutine psb_c_oacc_csr_inner_vect_sv
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end submodule psb_c_oacc_csr_inner_vect_sv_impl
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