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.
105 lines
3.3 KiB
Fortran
105 lines
3.3 KiB
Fortran
!
|
|
! Parallel Sparse BLAS version 3.5
|
|
! (C) Copyright 2006, 2010, 2015, 2017
|
|
! Salvatore Filippone Cranfield University
|
|
! Alfredo Buttari CNRS-IRIT, Toulouse
|
|
!
|
|
! 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_spge_dot.f90
|
|
! Function: X_spge_dot
|
|
!
|
|
! Compute the dot product between a sparse vector and a dense vector.
|
|
!
|
|
function psb_s_spge_dot(nv1,iv1,v1,v2) result(dot)
|
|
use psb_const_mod
|
|
integer(psb_ipk_), intent(in) :: nv1
|
|
integer(psb_ipk_), intent(in) :: iv1(*)
|
|
real(psb_spk_), intent(in) :: v1(*),v2(*)
|
|
real(psb_spk_) :: dot
|
|
|
|
integer(psb_ipk_) :: i,j,k, ip1, ip2
|
|
|
|
dot = szero
|
|
ip1 = 1
|
|
|
|
do i=1, nv1
|
|
dot = dot + v1(i)*v2(iv1(i))
|
|
end do
|
|
|
|
end function psb_s_spge_dot
|
|
|
|
function psb_d_spge_dot(nv1,iv1,v1,v2) result(dot)
|
|
use psb_const_mod
|
|
integer(psb_ipk_), intent(in) :: nv1
|
|
integer(psb_ipk_), intent(in) :: iv1(*)
|
|
real(psb_dpk_), intent(in) :: v1(*),v2(*)
|
|
real(psb_dpk_) :: dot
|
|
|
|
integer(psb_ipk_) :: i,j,k, ip1, ip2
|
|
|
|
dot = dzero
|
|
|
|
do i=1, nv1
|
|
dot = dot + v1(i)*v2(iv1(i))
|
|
end do
|
|
|
|
end function psb_d_spge_dot
|
|
|
|
function psb_c_spge_dot(nv1,iv1,v1,v2) result(dot)
|
|
use psb_const_mod
|
|
integer(psb_ipk_), intent(in) :: nv1
|
|
integer(psb_ipk_), intent(in) :: iv1(*)
|
|
complex(psb_spk_), intent(in) :: v1(*),v2(*)
|
|
complex(psb_spk_) :: dot
|
|
|
|
integer(psb_ipk_) :: i,j,k, ip1, ip2
|
|
|
|
dot = czero
|
|
|
|
do i=1, nv1
|
|
dot = dot + v1(i)*v2(iv1(i))
|
|
end do
|
|
|
|
end function psb_c_spge_dot
|
|
|
|
function psb_z_spge_dot(nv1,iv1,v1,v2) result(dot)
|
|
use psb_const_mod
|
|
integer(psb_ipk_), intent(in) :: nv1
|
|
integer(psb_ipk_), intent(in) :: iv1(*)
|
|
complex(psb_dpk_), intent(in) :: v1(*),v2(*)
|
|
complex(psb_dpk_) :: dot
|
|
|
|
integer(psb_ipk_) :: i,j,k, ip1, ip2
|
|
|
|
dot = zzero
|
|
|
|
do i=1, nv1
|
|
dot = dot + v1(i)*v2(iv1(i))
|
|
end do
|
|
|
|
end function psb_z_spge_dot
|