fdurastante
/
psblas3
mirror of https://github.com/sfilippone/psblas3.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

psblas3:

Browse Source 
base/modules/psb_serial_mod.f90
 base/serial/Makefile
 base/serial/psb_aspxpby.f90
 base/serial/psb_spdot_srtd.f90
 base/serial/psb_spge_dot.f90

Added support for sparse dot products, needed for approx. inverse
experiments
psblas3-type-indexed
Salvatore Filippone 14 years ago
parent a291147ae3
commit 9993b41288
5 changed files with 909 additions and 1 deletions
Show Stats Download Patch File Download Diff File

125
base/modules/psb_serial_mod.f90
Unescape Escape View File

@ -327,5 +327,130 @@ module psb_serial_mod
end interface end interface
interface psb_spdot_srtd
function psb_s_spdot_srtd(nv1,iv1,v1,nv2,iv2,v2) result(dot)
use psb_const_mod
integer, intent(in) :: nv1,nv2
integer, intent(in) :: iv1(*), iv2(*)
real(psb_spk_), intent(in) :: v1(*),v2(*)
real(psb_spk_) :: dot
end function psb_s_spdot_srtd
function psb_d_spdot_srtd(nv1,iv1,v1,nv2,iv2,v2) result(dot)
use psb_const_mod
integer, intent(in) :: nv1,nv2
integer, intent(in) :: iv1(*), iv2(*)
real(psb_dpk_), intent(in) :: v1(*),v2(*)
real(psb_dpk_) :: dot
end function psb_d_spdot_srtd
function psb_c_spdot_srtd(nv1,iv1,v1,nv2,iv2,v2) result(dot)
use psb_const_mod
integer, intent(in) :: nv1,nv2
integer, intent(in) :: iv1(*), iv2(*)
complex(psb_spk_), intent(in) :: v1(*),v2(*)
complex(psb_spk_) :: dot
end function psb_c_spdot_srtd
function psb_z_spdot_srtd(nv1,iv1,v1,nv2,iv2,v2) result(dot)
use psb_const_mod
integer, intent(in) :: nv1,nv2
integer, intent(in) :: iv1(*), iv2(*)
complex(psb_dpk_), intent(in) :: v1(*),v2(*)
complex(psb_dpk_) :: dot
end function psb_z_spdot_srtd
end interface
interface psb_spge_dot
function psb_s_spge_dot(nv1,iv1,v1,v2) result(dot)
use psb_const_mod
integer, intent(in) :: nv1
integer, intent(in) :: iv1(*)
real(psb_spk_), intent(in) :: v1(*),v2(*)
real(psb_spk_) :: dot
end function psb_s_spge_dot
function psb_d_spge_dot(nv1,iv1,v1,v2) result(dot)
use psb_const_mod
integer, intent(in) :: nv1
integer, intent(in) :: iv1(*)
real(psb_dpk_), intent(in) :: v1(*),v2(*)
real(psb_dpk_) :: dot
end function psb_d_spge_dot
function psb_c_spge_dot(nv1,iv1,v1,v2) result(dot)
use psb_const_mod
integer, intent(in) :: nv1
integer, intent(in) :: iv1(*)
complex(psb_spk_), intent(in) :: v1(*),v2(*)
complex(psb_spk_) :: dot
end function psb_c_spge_dot
function psb_z_spge_dot(nv1,iv1,v1,v2) result(dot)
use psb_const_mod
integer, intent(in) :: nv1
integer, intent(in) :: iv1(*)
complex(psb_dpk_), intent(in) :: v1(*),v2(*)
complex(psb_dpk_) :: dot
end function psb_z_spge_dot
end interface
interface psb_nspaxpby
subroutine psb_d_nspaxpby(nz,iz,z,alpha, nx, ix, x, beta, ny,iy,y,info)
use psb_const_mod
integer, intent(out) :: nz
integer, intent(out) :: iz(:)
real(psb_dpk_), intent (out) :: z(:)
integer, intent(in) :: nx, ny
integer, intent(in) :: ix(:), iy(:)
real(psb_dpk_), intent (in) :: x(:), y(:)
real(psb_dpk_), intent (in) :: alpha, beta
integer, intent(out) :: info
end subroutine psb_d_nspaxpby
end interface
interface psb_aspxpby
subroutine psb_s_aspxpby(alpha, nx, ix, x, beta, y, info)
use psb_const_mod
integer, intent(in) :: nx
integer, intent(in) :: ix(:)
real(psb_spk_), intent (in) :: x(:)
real(psb_spk_), intent (inout) :: y(:)
real(psb_spk_), intent (in) :: alpha, beta
integer, intent(out) :: info
end subroutine psb_s_aspxpby
subroutine psb_d_aspxpby(alpha, nx, ix, x, beta, y, info)
use psb_const_mod
integer, intent(in) :: nx
integer, intent(in) :: ix(:)
real(psb_dpk_), intent (in) :: x(:)
real(psb_dpk_), intent (inout) :: y(:)
real(psb_dpk_), intent (in) :: alpha, beta
integer, intent(out) :: info
end subroutine psb_d_aspxpby
subroutine psb_c_aspxpby(alpha, nx, ix, x, beta, y, info)
use psb_const_mod
integer, intent(in) :: nx
integer, intent(in) :: ix(:)
complex(psb_spk_), intent (in) :: x(:)
complex(psb_spk_), intent (inout) :: y(:)
complex(psb_spk_), intent (in) :: alpha, beta
integer, intent(out) :: info
end subroutine psb_c_aspxpby
subroutine psb_z_aspxpby(alpha, nx, ix, x, beta, y, info)
use psb_const_mod
integer, intent(in) :: nx
integer, intent(in) :: ix(:)
complex(psb_dpk_), intent (in) :: x(:)
complex(psb_dpk_), intent (inout) :: y(:)
complex(psb_dpk_), intent (in) :: alpha, beta
integer, intent(out) :: info
end subroutine psb_z_aspxpby
end interface
end module psb_serial_mod end module psb_serial_mod

3
base/serial/Makefile
Unescape Escape View File

@ -5,7 +5,8 @@ FOBJS = psb_lsame.o psi_serial_impl.o psb_sort_impl.o \
psb_srwextd.o psb_drwextd.o psb_crwextd.o psb_zrwextd.o \ psb_srwextd.o psb_drwextd.o psb_crwextd.o psb_zrwextd.o \
psb_ssymbmm.o psb_dsymbmm.o psb_csymbmm.o psb_zsymbmm.o \ psb_ssymbmm.o psb_dsymbmm.o psb_csymbmm.o psb_zsymbmm.o \
psb_snumbmm.o psb_dnumbmm.o psb_cnumbmm.o psb_znumbmm.o \ psb_snumbmm.o psb_dnumbmm.o psb_cnumbmm.o psb_znumbmm.o \
psb_sgeprt.o psb_dgeprt.o psb_cgeprt.o psb_zgeprt.o psb_sgeprt.o psb_dgeprt.o psb_cgeprt.o psb_zgeprt.o\
psb_spdot_srtd.o psb_aspxpby.o psb_spge_dot.o
LIBDIR=.. LIBDIR=..
MODDIR=../modules MODDIR=../modules

193
base/serial/psb_aspxpby.f90
Unescape Escape View File

@ -0,0 +1,193 @@
subroutine psb_s_aspxpby(alpha, nx, ix, x, beta, y, info)
use psb_const_mod
integer, intent(in) :: nx
integer, intent(in) :: ix(:)
real(psb_spk_), intent (in) :: x(:)
real(psb_spk_), intent (inout) :: y(:)
real(psb_spk_), intent (in) :: alpha, beta
integer, intent(out) :: info
integer :: i, ip
info=psb_success_
if (nx > max(size(ix),size(x))) then
info = -2
return
end if
if (beta /= sone) then
if (beta == -sone) then
y(:) = -y(:)
else if (beta == szero) then
y(:) = szero
else
y(:) = beta * y(:)
end if
end if
if (alpha == szero) return
if (alpha == sone) then
do i=1, nx
ip = ix(i)
y(ip) = y(ip) + x(i)
end do
else if (alpha == -sone) then
do i=1, nx
ip = ix(i)
y(ip) = y(ip) - x(i)
end do
else
do i=1, nx
ip = ix(i)
y(ip) = y(ip) + alpha*x(i)
end do
end if
end subroutine psb_s_aspxpby
subroutine psb_d_aspxpby(alpha, nx, ix, x, beta, y, info)
use psb_const_mod
integer, intent(in) :: nx
integer, intent(in) :: ix(:)
real(psb_dpk_), intent (in) :: x(:)
real(psb_dpk_), intent (inout) :: y(:)
real(psb_dpk_), intent (in) :: alpha, beta
integer, intent(out) :: info
integer :: i, ip
info=psb_success_
if (nx > max(size(ix),size(x))) then
info = -2
return
end if
if (beta /= done) then
if (beta == -done) then
y(:) = -y(:)
else if (beta == dzero) then
y(:) = dzero
else
y(:) = beta * y(:)
end if
end if
if (alpha == dzero) return
if (alpha == done) then
do i=1, nx
ip = ix(i)
y(ip) = y(ip) + x(i)
end do
else if (alpha == -done) then
do i=1, nx
ip = ix(i)
y(ip) = y(ip) - x(i)
end do
else
do i=1, nx
ip = ix(i)
y(ip) = y(ip) + alpha*x(i)
end do
end if
end subroutine psb_d_aspxpby
subroutine psb_c_aspxpby(alpha, nx, ix, x, beta, y, info)
use psb_const_mod
integer, intent(in) :: nx
integer, intent(in) :: ix(:)
complex(psb_spk_), intent (in) :: x(:)
complex(psb_spk_), intent (inout) :: y(:)
complex(psb_spk_), intent (in) :: alpha, beta
integer, intent(out) :: info
integer :: i, ip
info=psb_success_
if (nx > max(size(ix),size(x))) then
info = -2
return
end if
if (beta /= cone) then
if (beta == -cone) then
y(:) = -y(:)
else if (beta == czero) then
y(:) = czero
else
y(:) = beta * y(:)
end if
end if
if (alpha == czero) return
if (alpha == cone) then
do i=1, nx
ip = ix(i)
y(ip) = y(ip) + x(i)
end do
else if (alpha == -cone) then
do i=1, nx
ip = ix(i)
y(ip) = y(ip) - x(i)
end do
else
do i=1, nx
ip = ix(i)
y(ip) = y(ip) + alpha*x(i)
end do
end if
end subroutine psb_c_aspxpby
subroutine psb_z_aspxpby(alpha, nx, ix, x, beta, y, info)
use psb_const_mod
integer, intent(in) :: nx
integer, intent(in) :: ix(:)
complex(psb_dpk_), intent (in) :: x(:)
complex(psb_dpk_), intent (inout) :: y(:)
complex(psb_dpk_), intent (in) :: alpha, beta
integer, intent(out) :: info
integer :: i, ip
info=psb_success_
if (nx > max(size(ix),size(x))) then
info = -2
return
end if
if (beta /= zone) then
if (beta == -zone) then
y(:) = -y(:)
else if (beta == zzero) then
y(:) = zzero
else
y(:) = beta * y(:)
end if
end if
if (alpha == zzero) return
if (alpha == zone) then
do i=1, nx
ip = ix(i)
y(ip) = y(ip) + x(i)
end do
else if (alpha == -zone) then
do i=1, nx
ip = ix(i)
y(ip) = y(ip) - x(i)
end do
else
do i=1, nx
ip = ix(i)
y(ip) = y(ip) + alpha*x(i)
end do
end if
end subroutine psb_z_aspxpby

521
base/serial/psb_spdot_srtd.f90
Unescape Escape View File

@ -0,0 +1,521 @@
subroutine psb_s_nspaxpby(nz,iz,z,alpha, nx, ix, x, beta, ny,iy,y,info)
use psb_const_mod
integer, intent(out) :: nz
integer, intent(out) :: iz(:)
real(psb_spk_), intent (out) :: z(:)
integer, intent(in) :: nx, ny
integer, intent(in) :: ix(:), iy(:)
real(psb_spk_), intent (in) :: x(:), y(:)
real(psb_spk_), intent (in) :: alpha, beta
integer, intent(out) :: info
integer :: i,j,k, ipx, ipy, isz
real(psb_spk_) :: acc
info=psb_success_
nz = 0
ipx = 1
ipy = 1
isz = min(size(iz),size(z))
if (beta == szero) then
if (alpha == szero) return
nz = nx
if (nz > isz) then
info = -1
return
endif
iz(1:nz) = ix(1:nx)
z(1:nz) = alpha*x(1:nx)
else if (alpha == szero) then
nz = ny
if (nz > isz) then
info = -1
return
endif
iz(1:nz) = iy(1:ny)
z(1:nz) = beta*y(1:ny)
else
do
if (ipx > nx) exit
if (ipy > ny) exit
if (ix(ipx) == iy(ipy)) then
acc = beta*y(ipy) + alpha*x(ipx)
if (acc /= szero) then
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
iz(nz) = ix(ipx)
z(nz) = acc
ipx = ipx + 1
ipy = ipy + 1
end if
else
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
if (ix(ipx) < iy(ipy)) then
iz(nz) = ix(ipx)
z(nz) = alpha*x(ipx)
ipx = ipx + 1
else
iz(nz) = iy(ipy)
z(nz) = beta*y(ipy)
ipy = ipy + 1
end if
end if
end do
do
if (ipx > nx) exit
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
iz(nz) = ix(ipx)
z(nz) = alpha*x(ipx)
ipx = ipx + 1
end do
do
if (ipy > ny) exit
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
iz(nz) = iy(ipy)
z(nz) = beta*y(ipy)
ipy = ipy + 1
end do
end if
end subroutine psb_s_nspaxpby
function psb_s_spdot_srtd(nv1,iv1,v1,nv2,iv2,v2) result(dot)
use psb_const_mod
integer, intent(in) :: nv1,nv2
integer, intent(in) :: iv1(*), iv2(*)
real(psb_spk_), intent(in) :: v1(*),v2(*)
real(psb_spk_) :: dot
integer :: i,j,k, ip1, ip2
dot = szero
ip1 = 1
ip2 = 1
do
if (ip1 > nv1) exit
if (ip2 > nv2) exit
if (iv1(ip1) == iv2(ip2)) then
dot = dot + v1(ip1)*v2(ip2)
ip1 = ip1 + 1
ip2 = ip2 + 1
else if (iv1(ip1) < iv2(ip2)) then
ip1 = ip1 + 1
else
ip2 = ip2 + 1
end if
end do
end function psb_s_spdot_srtd
subroutine psb_d_nspaxpby(nz,iz,z,alpha, nx, ix, x, beta, ny,iy,y,info)
use psb_const_mod
integer, intent(out) :: nz
integer, intent(out) :: iz(:)
real(psb_dpk_), intent (out) :: z(:)
integer, intent(in) :: nx, ny
integer, intent(in) :: ix(:), iy(:)
real(psb_dpk_), intent (in) :: x(:), y(:)
real(psb_dpk_), intent (in) :: alpha, beta
integer, intent(out) :: info
integer :: i,j,k, ipx, ipy, isz
real(psb_dpk_) :: acc
info=psb_success_
nz = 0
ipx = 1
ipy = 1
isz = min(size(iz),size(z))
if (beta == dzero) then
if (alpha == dzero) return
nz = nx
if (nz > isz) then
info = -1
return
endif
iz(1:nz) = ix(1:nx)
z(1:nz) = alpha*x(1:nx)
else if (alpha == dzero) then
nz = ny
if (nz > isz) then
info = -1
return
endif
iz(1:nz) = iy(1:ny)
z(1:nz) = beta*y(1:ny)
else
do
if (ipx > nx) exit
if (ipy > ny) exit
if (ix(ipx) == iy(ipy)) then
acc = beta*y(ipy) + alpha*x(ipx)
if (acc /= dzero) then
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
iz(nz) = ix(ipx)
z(nz) = acc
ipx = ipx + 1
ipy = ipy + 1
end if
else
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
if (ix(ipx) < iy(ipy)) then
iz(nz) = ix(ipx)
z(nz) = alpha*x(ipx)
ipx = ipx + 1
else
iz(nz) = iy(ipy)
z(nz) = beta*y(ipy)
ipy = ipy + 1
end if
end if
end do
do
if (ipx > nx) exit
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
iz(nz) = ix(ipx)
z(nz) = alpha*x(ipx)
ipx = ipx + 1
end do
do
if (ipy > ny) exit
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
iz(nz) = iy(ipy)
z(nz) = beta*y(ipy)
ipy = ipy + 1
end do
end if
end subroutine psb_d_nspaxpby
function psb_d_spdot_srtd(nv1,iv1,v1,nv2,iv2,v2) result(dot)
use psb_const_mod
integer, intent(in) :: nv1,nv2
integer, intent(in) :: iv1(*), iv2(*)
real(psb_dpk_), intent(in) :: v1(*),v2(*)
real(psb_dpk_) :: dot
integer :: i,j,k, ip1, ip2
dot = dzero
ip1 = 1
ip2 = 1
if (nv1 == 0) return
if (nv2 == 0) return
do
if (iv1(ip1) == iv2(ip2)) then
dot = dot + v1(ip1)*v2(ip2)
ip1 = ip1 + 1
ip2 = ip2 + 1
else if (iv1(ip1) < iv2(ip2)) then
ip1 = ip1 + 1
else
ip2 = ip2 + 1
end if
if ((ip1 > nv1) .or. (ip2 > nv2)) exit
end do
end function psb_d_spdot_srtd
subroutine psb_c_nspaxpby(nz,iz,z,alpha, nx, ix, x, beta, ny,iy,y,info)
use psb_const_mod
integer, intent(out) :: nz
integer, intent(out) :: iz(:)
complex(psb_spk_), intent (out) :: z(:)
integer, intent(in) :: nx, ny
integer, intent(in) :: ix(:), iy(:)
complex(psb_spk_), intent (in) :: x(:), y(:)
complex(psb_spk_), intent (in) :: alpha, beta
integer, intent(out) :: info
integer :: i,j,k, ipx, ipy, isz
complex(psb_spk_) :: acc
info=psb_success_
nz = 0
ipx = 1
ipy = 1
isz = min(size(iz),size(z))
if (beta == czero) then
if (alpha == czero) return
nz = nx
if (nz > isz) then
info = -1
return
endif
iz(1:nz) = ix(1:nx)
z(1:nz) = alpha*x(1:nx)
else if (alpha == czero) then
nz = ny
if (nz > isz) then
info = -1
return
endif
iz(1:nz) = iy(1:ny)
z(1:nz) = beta*y(1:ny)
else
do
if (ipx > nx) exit
if (ipy > ny) exit
if (ix(ipx) == iy(ipy)) then
acc = beta*y(ipy) + alpha*x(ipx)
if (acc /= czero) then
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
iz(nz) = ix(ipx)
z(nz) = acc
ipx = ipx + 1
ipy = ipy + 1
end if
else
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
if (ix(ipx) < iy(ipy)) then
iz(nz) = ix(ipx)
z(nz) = alpha*x(ipx)
ipx = ipx + 1
else
iz(nz) = iy(ipy)
z(nz) = beta*y(ipy)
ipy = ipy + 1
end if
end if
end do
do
if (ipx > nx) exit
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
iz(nz) = ix(ipx)
z(nz) = alpha*x(ipx)
ipx = ipx + 1
end do
do
if (ipy > ny) exit
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
iz(nz) = iy(ipy)
z(nz) = beta*y(ipy)
ipy = ipy + 1
end do
end if
end subroutine psb_c_nspaxpby
function psb_c_spdot_srtd(nv1,iv1,v1,nv2,iv2,v2) result(dot)
use psb_const_mod
integer, intent(in) :: nv1,nv2
integer, intent(in) :: iv1(*), iv2(*)
complex(psb_spk_), intent(in) :: v1(*),v2(*)
complex(psb_spk_) :: dot
integer :: i,j,k, ip1, ip2
dot = czero
ip1 = 1
ip2 = 1
do
if (ip1 > nv1) exit
if (ip2 > nv2) exit
if (iv1(ip1) == iv2(ip2)) then
dot = dot + conjg(v1(ip1))*v2(ip2)
ip1 = ip1 + 1
ip2 = ip2 + 1
else if (iv1(ip1) < iv2(ip2)) then
ip1 = ip1 + 1
else
ip2 = ip2 + 1
end if
end do
end function psb_c_spdot_srtd
subroutine psb_z_nspaxpby(nz,iz,z,alpha, nx, ix, x, beta, ny,iy,y,info)
use psb_const_mod
integer, intent(out) :: nz
integer, intent(out) :: iz(:)
complex(psb_dpk_), intent (out) :: z(:)
integer, intent(in) :: nx, ny
integer, intent(in) :: ix(:), iy(:)
complex(psb_dpk_), intent (in) :: x(:), y(:)
complex(psb_dpk_), intent (in) :: alpha, beta
integer, intent(out) :: info
integer :: i,j,k, ipx, ipy, isz
complex(psb_dpk_) :: acc
info=psb_success_
nz = 0
ipx = 1
ipy = 1
isz = min(size(iz),size(z))
if (beta == zzero) then
if (alpha == zzero) return
nz = nx
if (nz > isz) then
info = -1
return
endif
iz(1:nz) = ix(1:nx)
z(1:nz) = alpha*x(1:nx)
else if (alpha == zzero) then
nz = ny
if (nz > isz) then
info = -1
return
endif
iz(1:nz) = iy(1:ny)
z(1:nz) = beta*y(1:ny)
else
do
if (ipx > nx) exit
if (ipy > ny) exit
if (ix(ipx) == iy(ipy)) then
acc = beta*y(ipy) + alpha*x(ipx)
if (acc /= zzero) then
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
iz(nz) = ix(ipx)
z(nz) = acc
ipx = ipx + 1
ipy = ipy + 1
end if
else
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
if (ix(ipx) < iy(ipy)) then
iz(nz) = ix(ipx)
z(nz) = alpha*x(ipx)
ipx = ipx + 1
else
iz(nz) = iy(ipy)
z(nz) = beta*y(ipy)
ipy = ipy + 1
end if
end if
end do
do
if (ipx > nx) exit
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
iz(nz) = ix(ipx)
z(nz) = alpha*x(ipx)
ipx = ipx + 1
end do
do
if (ipy > ny) exit
nz = nz + 1
if (nz > isz) then
info = -1
return
endif
iz(nz) = iy(ipy)
z(nz) = beta*y(ipy)
ipy = ipy + 1
end do
end if
end subroutine psb_z_nspaxpby
function psb_z_spdot_srtd(nv1,iv1,v1,nv2,iv2,v2) result(dot)
use psb_const_mod
integer, intent(in) :: nv1,nv2
integer, intent(in) :: iv1(*), iv2(*)
complex(psb_dpk_), intent(in) :: v1(*),v2(*)
complex(psb_dpk_) :: dot
integer :: i,j,k, ip1, ip2
dot = zzero
ip1 = 1
ip2 = 1
do
if (ip1 > nv1) exit
if (ip2 > nv2) exit
if (iv1(ip1) == iv2(ip2)) then
dot = dot + conjg(v1(ip1))*v2(ip2)
ip1 = ip1 + 1
ip2 = ip2 + 1
else if (iv1(ip1) < iv2(ip2)) then
ip1 = ip1 + 1
else
ip2 = ip2 + 1
end if
end do
end function psb_z_spdot_srtd

68
base/serial/psb_spge_dot.f90
Unescape Escape View File

@ -0,0 +1,68 @@
function psb_s_spge_dot(nv1,iv1,v1,v2) result(dot)
use psb_const_mod
integer, intent(in) :: nv1
integer, intent(in) :: iv1(*)
real(psb_spk_), intent(in) :: v1(*),v2(*)
real(psb_spk_) :: dot
integer :: 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, intent(in) :: nv1
integer, intent(in) :: iv1(*)
real(psb_dpk_), intent(in) :: v1(*),v2(*)
real(psb_dpk_) :: dot
integer :: 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, intent(in) :: nv1
integer, intent(in) :: iv1(*)
complex(psb_spk_), intent(in) :: v1(*),v2(*)
complex(psb_spk_) :: dot
integer :: 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, intent(in) :: nv1
integer, intent(in) :: iv1(*)
complex(psb_dpk_), intent(in) :: v1(*),v2(*)
complex(psb_dpk_) :: dot
integer :: 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
Write Preview
Loading…
Cancel
Save