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353 lines
6.8 KiB
Fortran
353 lines
6.8 KiB
Fortran
subroutine psi_zaxpby(m,n,alpha, x, beta, y, info)
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use psb_const_mod
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use psb_error_mod
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implicit none
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integer(psb_ipk_), intent(in) :: m, n
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complex(psb_dpk_), intent (in) :: x(:,:)
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complex(psb_dpk_), intent (inout) :: y(:,:)
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complex(psb_dpk_), intent (in) :: alpha, beta
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: err_act
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integer(psb_ipk_) :: lx, ly
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integer(psb_ipk_) :: ierr(5)
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character(len=20) :: name, ch_err
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name='psb_geaxpby'
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if(psb_get_errstatus() /= 0) return
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info=psb_success_
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call psb_erractionsave(err_act)
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if (m < 0) then
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info = psb_err_iarg_neg_
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ierr(1) = 1; ierr(2) = m
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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end if
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if (n < 0) then
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info = psb_err_iarg_neg_
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ierr(1) = 2; ierr(2) = n
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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end if
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lx = size(x,1)
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ly = size(y,1)
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if (lx < m) then
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info = psb_err_input_asize_small_i_
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ierr(1) = 4; ierr(2) = m
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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end if
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if (ly < m) then
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info = psb_err_input_asize_small_i_
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ierr(1) = 6; ierr(2) = m
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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end if
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if ((m>0).and.(n>0)) call zaxpby(m,n,alpha,x,lx,beta,y,ly,info)
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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 psi_zaxpby
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subroutine psi_zaxpbyv(m,alpha, x, beta, y, info)
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use psb_const_mod
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use psb_error_mod
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implicit none
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integer(psb_ipk_), intent(in) :: m
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complex(psb_dpk_), intent (in) :: x(:)
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complex(psb_dpk_), intent (inout) :: y(:)
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complex(psb_dpk_), intent (in) :: alpha, beta
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: err_act
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integer(psb_ipk_) :: lx, ly
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integer(psb_ipk_) :: ierr(5)
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character(len=20) :: name, ch_err
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name='psb_geaxpby'
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if(psb_get_errstatus() /= 0) return
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info=psb_success_
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call psb_erractionsave(err_act)
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if (m < 0) then
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info = psb_err_iarg_neg_
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ierr(1) = 1; ierr(2) = m
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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end if
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lx = size(x,1)
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ly = size(y,1)
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if (lx < m) then
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info = psb_err_input_asize_small_i_
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ierr(1) = 3; ierr(2) = m
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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end if
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if (ly < m) then
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info = psb_err_input_asize_small_i_
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ierr(1) = 5; ierr(2) = m
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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end if
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if (m>0) call zaxpby(m,ione,alpha,x,lx,beta,y,ly,info)
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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 psi_zaxpbyv
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subroutine psi_zgthmv(n,k,idx,alpha,x,beta,y)
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use psb_const_mod
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implicit none
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integer(psb_ipk_) :: n, k, idx(:)
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complex(psb_dpk_) :: x(:,:), y(:),alpha,beta
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! Locals
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integer(psb_ipk_) :: i, j, pt
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if (beta == zzero) then
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if (alpha == zzero) then
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pt=0
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do j=1,k
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do i=1,n
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pt=pt+1
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y(pt) = zzero
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end do
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end do
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else if (alpha == zone) then
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pt=0
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do j=1,k
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do i=1,n
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pt=pt+1
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y(pt) = x(idx(i),j)
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end do
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end do
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else if (alpha == -zone) then
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pt=0
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do j=1,k
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do i=1,n
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pt=pt+1
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y(pt) = -x(idx(i),j)
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end do
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end do
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else
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pt=0
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do j=1,k
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do i=1,n
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pt=pt+1
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y(pt) = alpha*x(idx(i),j)
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end do
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end do
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end if
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else
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if (beta == zone) then
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! Do nothing
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else if (beta == -zone) then
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y(1:n*k) = -y(1:n*k)
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else
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y(1:n*k) = beta*y(1:n*k)
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end if
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if (alpha == zzero) then
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! do nothing
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else if (alpha == zone) then
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pt=0
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do j=1,k
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do i=1,n
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pt=pt+1
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y(pt) = y(pt) + x(idx(i),j)
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end do
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end do
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else if (alpha == -zone) then
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pt=0
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do j=1,k
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do i=1,n
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pt=pt+1
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y(pt) = y(pt) - x(idx(i),j)
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end do
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end do
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else
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pt=0
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do j=1,k
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do i=1,n
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pt=pt+1
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y(pt) = y(pt) + alpha*x(idx(i),j)
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end do
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end do
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end if
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end if
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end subroutine psi_zgthmv
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subroutine psi_zgthv(n,idx,alpha,x,beta,y)
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use psb_const_mod
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implicit none
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integer(psb_ipk_) :: n, idx(:)
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complex(psb_dpk_) :: x(:), y(:),alpha,beta
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! Locals
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integer(psb_ipk_) :: i
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if (beta == zzero) then
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if (alpha == zzero) then
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do i=1,n
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y(i) = zzero
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end do
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else if (alpha == zone) then
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do i=1,n
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y(i) = x(idx(i))
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end do
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else if (alpha == -zone) then
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do i=1,n
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y(i) = -x(idx(i))
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end do
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else
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do i=1,n
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y(i) = alpha*x(idx(i))
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end do
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end if
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else
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if (beta == zone) then
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! Do nothing
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else if (beta == -zone) then
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y(1:n) = -y(1:n)
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else
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y(1:n) = beta*y(1:n)
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end if
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if (alpha == zzero) then
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! do nothing
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else if (alpha == zone) then
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do i=1,n
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y(i) = y(i) + x(idx(i))
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end do
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else if (alpha == -zone) then
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do i=1,n
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y(i) = y(i) - x(idx(i))
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end do
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else
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do i=1,n
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y(i) = y(i) + alpha*x(idx(i))
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end do
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end if
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end if
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end subroutine psi_zgthv
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subroutine psi_zgthzmv(n,k,idx,x,y)
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use psb_const_mod
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implicit none
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integer(psb_ipk_) :: n, k, idx(:)
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complex(psb_dpk_) :: x(:,:), y(:)
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! Locals
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integer(psb_ipk_) :: i, j, pt
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pt=0
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do j=1,k
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do i=1,n
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pt=pt+1
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y(pt)=x(idx(i),j)
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end do
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end do
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end subroutine psi_zgthzmv
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subroutine psi_zgthzv(n,idx,x,y)
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use psb_const_mod
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implicit none
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integer(psb_ipk_) :: n, idx(:)
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complex(psb_dpk_) :: x(:), y(:)
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! Locals
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integer(psb_ipk_) :: i
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do i=1,n
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y(i)=x(idx(i))
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end do
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end subroutine psi_zgthzv
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subroutine psi_zsctmv(n,k,idx,x,beta,y)
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use psb_const_mod
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implicit none
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integer(psb_ipk_) :: n, k, idx(:)
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complex(psb_dpk_) :: beta, x(:), y(:,:)
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! Locals
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integer(psb_ipk_) :: i, j, pt
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if (beta == zzero) then
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pt=0
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do j=1,k
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do i=1,n
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pt=pt+1
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y(idx(i),j) = x(pt)
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end do
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end do
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else if (beta == zone) then
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pt=0
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do j=1,k
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do i=1,n
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pt=pt+1
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y(idx(i),j) = y(idx(i),j)+x(pt)
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end do
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end do
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else
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pt=0
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do j=1,k
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do i=1,n
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pt=pt+1
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y(idx(i),j) = beta*y(idx(i),j)+x(pt)
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end do
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end do
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end if
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end subroutine psi_zsctmv
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subroutine psi_zsctv(n,idx,x,beta,y)
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use psb_const_mod
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implicit none
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integer(psb_ipk_) :: n, idx(:)
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complex(psb_dpk_) :: beta, x(:), y(:)
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! Locals
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integer(psb_ipk_) :: i
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if (beta == zzero) then
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do i=1,n
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y(idx(i)) = x(i)
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end do
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else if (beta == zone) then
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do i=1,n
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y(idx(i)) = y(idx(i))+x(i)
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end do
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else
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do i=1,n
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y(idx(i)) = beta*y(idx(i))+x(i)
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end do
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end if
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end subroutine psi_zsctv
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