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psblas3/base/newserial/psbn_d_csr_impl.f03

1837 lines
43 KiB
Fortran

!=====================================
!
!
!
! Computational routines
!
!
!
!
!
!
!=====================================
subroutine d_csr_csmv_impl(alpha,a,x,beta,y,info,trans)
use psb_error_mod
use psb_string_mod
use psbn_d_csr_mat_mod, psb_protect_name => d_csr_csmv_impl
implicit none
class(psbn_d_csr_sparse_mat), intent(in) :: a
real(psb_dpk_), intent(in) :: alpha, beta, x(:)
real(psb_dpk_), intent(inout) :: y(:)
integer, intent(out) :: info
character, optional, intent(in) :: trans
character :: trans_
integer :: i,j,k,m,n, nnz, ir, jc
real(psb_dpk_) :: acc
logical :: tra
Integer :: err_act
character(len=20) :: name='d_csr_csmv'
logical, parameter :: debug=.false.
call psb_erractionsave(err_act)
info = 0
if (present(trans)) then
trans_ = trans
else
trans_ = 'N'
end if
if (.not.a%is_asb()) then
info = 1121
call psb_errpush(info,name)
goto 9999
endif
tra = (psb_toupper(trans_)=='T').or.(psb_toupper(trans_)=='C')
if (tra) then
m = a%get_ncols()
n = a%get_nrows()
else
n = a%get_ncols()
m = a%get_nrows()
end if
call d_csr_csmv_inner(m,n,alpha,a%irp,a%ja,a%val,&
& a%is_triangle(),a%is_unit(),&
& x,beta,y,tra)
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
contains
subroutine d_csr_csmv_inner(m,n,alpha,irp,ja,val,is_triangle,is_unit,&
& x,beta,y,tra)
integer, intent(in) :: m,n,irp(*),ja(*)
real(psb_dpk_), intent(in) :: alpha, beta, x(*),val(*)
real(psb_dpk_), intent(inout) :: y(*)
logical, intent(in) :: is_triangle,is_unit,tra
integer :: i,j,k, ir, jc
real(psb_dpk_) :: acc
if (alpha == dzero) then
if (beta == dzero) then
do i = 1, m
y(i) = dzero
enddo
else
do i = 1, m
y(i) = beta*y(i)
end do
endif
return
end if
if (.not.tra) then
if (beta == dzero) then
if (alpha == done) then
do i=1,m
acc = dzero
do j=irp(i), irp(i+1)-1
acc = acc + val(j) * x(ja(j))
enddo
y(i) = acc
end do
else if (alpha == -done) then
do i=1,m
acc = dzero
do j=irp(i), irp(i+1)-1
acc = acc + val(j) * x(ja(j))
enddo
y(i) = -acc
end do
else
do i=1,m
acc = dzero
do j=irp(i), irp(i+1)-1
acc = acc + val(j) * x(ja(j))
enddo
y(i) = alpha*acc
end do
end if
else if (beta == done) then
if (alpha == done) then
do i=1,m
acc = dzero
do j=irp(i), irp(i+1)-1
acc = acc + val(j) * x(ja(j))
enddo
y(i) = y(i) + acc
end do
else if (alpha == -done) then
do i=1,m
acc = dzero
do j=irp(i), irp(i+1)-1
acc = acc + val(j) * x(ja(j))
enddo
y(i) = y(i) -acc
end do
else
do i=1,m
acc = dzero
do j=irp(i), irp(i+1)-1
acc = acc + val(j) * x(ja(j))
enddo
y(i) = y(i) + alpha*acc
end do
end if
else if (beta == -done) then
if (alpha == done) then
do i=1,m
acc = dzero
do j=irp(i), irp(i+1)-1
acc = acc + val(j) * x(ja(j))
enddo
y(i) = -y(i) + acc
end do
else if (alpha == -done) then
do i=1,m
acc = dzero
do j=irp(i), irp(i+1)-1
acc = acc + val(j) * x(ja(j))
enddo
y(i) = -y(i) -acc
end do
else
do i=1,m
acc = dzero
do j=irp(i), irp(i+1)-1
acc = acc + val(j) * x(ja(j))
enddo
y(i) = -y(i) + alpha*acc
end do
end if
else
if (alpha == done) then
do i=1,m
acc = dzero
do j=irp(i), irp(i+1)-1
acc = acc + val(j) * x(ja(j))
enddo
y(i) = beta*y(i) + acc
end do
else if (alpha == -done) then
do i=1,m
acc = dzero
do j=irp(i), irp(i+1)-1
acc = acc + val(j) * x(ja(j))
enddo
y(i) = beta*y(i) - acc
end do
else
do i=1,m
acc = dzero
do j=irp(i), irp(i+1)-1
acc = acc + val(j) * x(ja(j))
enddo
y(i) = beta*y(i) + alpha*acc
end do
end if
end if
else if (tra) then
if (beta == dzero) then
do i=1, m
y(i) = dzero
end do
else if (beta == done) then
! Do nothing
else if (beta == -done) then
do i=1, m
y(i) = -y(i)
end do
else
do i=1, m
y(i) = beta*y(i)
end do
end if
if (alpha.eq.done) then
do i=1,n
do j=irp(i), irp(i+1)-1
ir = ja(j)
y(ir) = y(ir) + val(j)*x(i)
end do
enddo
else if (alpha.eq.-done) then
do i=1,n
do j=irp(i), irp(i+1)-1
ir = ja(j)
y(ir) = y(ir) - val(j)*x(i)
end do
enddo
else
do i=1,n
do j=irp(i), irp(i+1)-1
ir = ja(j)
y(ir) = y(ir) + alpha*val(j)*x(i)
end do
enddo
end if
endif
if (is_triangle.and.is_unit) then
do i=1, min(m,n)
y(i) = y(i) + alpha*x(i)
end do
end if
end subroutine d_csr_csmv_inner
end subroutine d_csr_csmv_impl
subroutine d_csr_csmm_impl(alpha,a,x,beta,y,info,trans)
use psb_error_mod
use psb_string_mod
use psbn_d_csr_mat_mod, psb_protect_name => d_csr_csmm_impl
implicit none
class(psbn_d_csr_sparse_mat), intent(in) :: a
real(psb_dpk_), intent(in) :: alpha, beta, x(:,:)
real(psb_dpk_), intent(inout) :: y(:,:)
integer, intent(out) :: info
character, optional, intent(in) :: trans
character :: trans_
integer :: i,j,k,m,n, nnz, ir, jc, nc
real(psb_dpk_), allocatable :: acc(:)
logical :: tra
Integer :: err_act
character(len=20) :: name='d_csr_csmm'
logical, parameter :: debug=.false.
info = 0
call psb_erractionsave(err_act)
if (present(trans)) then
trans_ = trans
else
trans_ = 'N'
end if
if (.not.a%is_asb()) then
info = 1121
call psb_errpush(info,name)
goto 9999
endif
tra = (psb_toupper(trans_)=='T').or.(psb_toupper(trans_)=='C')
if (tra) then
m = a%get_ncols()
n = a%get_nrows()
else
n = a%get_ncols()
m = a%get_nrows()
end if
nc = min(size(x,2) , size(y,2) )
allocate(acc(nc), stat=info)
if(info /= 0) then
info=4010
call psb_errpush(info,name,a_err='allocate')
goto 9999
end if
call d_csr_csmm_inner(m,n,nc,alpha,a%irp,a%ja,a%val, &
& a%is_triangle(),a%is_unit(),x,size(x,1), &
& beta,y,size(y,1),tra,acc)
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
contains
subroutine d_csr_csmm_inner(m,n,nc,alpha,irp,ja,val,&
& is_triangle,is_unit,x,ldx,beta,y,ldy,tra,acc)
integer, intent(in) :: m,n,ldx,ldy,nc,irp(*),ja(*)
real(psb_dpk_), intent(in) :: alpha, beta, x(ldx,*),val(*)
real(psb_dpk_), intent(inout) :: y(ldy,*)
logical, intent(in) :: is_triangle,is_unit,tra
real(psb_dpk_), intent(inout) :: acc(*)
integer :: i,j,k, ir, jc
if (alpha == dzero) then
if (beta == dzero) then
do i = 1, m
y(i,1:nc) = dzero
enddo
else
do i = 1, m
y(i,1:nc) = beta*y(i,1:nc)
end do
endif
return
end if
if (.not.tra) then
if (beta == dzero) then
if (alpha == done) then
do i=1,m
acc(1:nc) = dzero
do j=irp(i), irp(i+1)-1
acc(1:nc) = acc(1:nc) + val(j) * x(ja(j),1:nc)
enddo
y(i,1:nc) = acc(1:nc)
end do
else if (alpha == -done) then
do i=1,m
acc(1:nc) = dzero
do j=irp(i), irp(i+1)-1
acc(1:nc) = acc(1:nc) + val(j) * x(ja(j),1:nc)
enddo
y(i,1:nc) = -acc(1:nc)
end do
else
do i=1,m
acc(1:nc) = dzero
do j=irp(i), irp(i+1)-1
acc(1:nc) = acc(1:nc) + val(j) * x(ja(j),1:nc)
enddo
y(i,1:nc) = alpha*acc(1:nc)
end do
end if
else if (beta == done) then
if (alpha == done) then
do i=1,m
acc(1:nc) = dzero
do j=irp(i), irp(i+1)-1
acc(1:nc) = acc(1:nc) + val(j) * x(ja(j),1:nc)
enddo
y(i,1:nc) = y(i,1:nc) + acc(1:nc)
end do
else if (alpha == -done) then
do i=1,m
acc(1:nc) = dzero
do j=irp(i), irp(i+1)-1
acc(1:nc) = acc(1:nc) + val(j) * x(ja(j),1:nc)
enddo
y(i,1:nc) = y(i,1:nc) -acc(1:nc)
end do
else
do i=1,m
acc(1:nc) = dzero
do j=irp(i), irp(i+1)-1
acc(1:nc) = acc(1:nc) + val(j) * x(ja(j),1:nc)
enddo
y(i,1:nc) = y(i,1:nc) + alpha*acc(1:nc)
end do
end if
else if (beta == -done) then
if (alpha == done) then
do i=1,m
acc(1:nc) = dzero
do j=irp(i), irp(i+1)-1
acc(1:nc) = acc(1:nc) + val(j) * x(ja(j),1:nc)
enddo
y(i,1:nc) = -y(i,1:nc) + acc(1:nc)
end do
else if (alpha == -done) then
do i=1,m
acc(1:nc) = dzero
do j=irp(i), irp(i+1)-1
acc(1:nc) = acc(1:nc) + val(j) * x(ja(j),1:nc)
enddo
y(i,1:nc) = -y(i,1:nc) -acc(1:nc)
end do
else
do i=1,m
acc(1:nc) = dzero
do j=irp(i), irp(i+1)-1
acc(1:nc) = acc(1:nc) + val(j) * x(ja(j),1:nc)
enddo
y(i,1:nc) = -y(i,1:nc) + alpha*acc(1:nc)
end do
end if
else
if (alpha == done) then
do i=1,m
acc(1:nc) = dzero
do j=irp(i), irp(i+1)-1
acc(1:nc) = acc(1:nc) + val(j) * x(ja(j),1:nc)
enddo
y(i,1:nc) = beta*y(i,1:nc) + acc(1:nc)
end do
else if (alpha == -done) then
do i=1,m
acc(1:nc) = dzero
do j=irp(i), irp(i+1)-1
acc(1:nc) = acc(1:nc) + val(j) * x(ja(j),1:nc)
enddo
y(i,1:nc) = beta*y(i,1:nc) - acc(1:nc)
end do
else
do i=1,m
acc(1:nc) = dzero
do j=irp(i), irp(i+1)-1
acc(1:nc) = acc(1:nc) + val(j) * x(ja(j),1:nc)
enddo
y(i,1:nc) = beta*y(i,1:nc) + alpha*acc(1:nc)
end do
end if
end if
else if (tra) then
if (beta == dzero) then
do i=1, m
y(i,1:nc) = dzero
end do
else if (beta == done) then
! Do nothing
else if (beta == -done) then
do i=1, m
y(i,1:nc) = -y(i,1:nc)
end do
else
do i=1, m
y(i,1:nc) = beta*y(i,1:nc)
end do
end if
if (alpha.eq.done) then
do i=1,n
do j=irp(i), irp(i+1)-1
ir = ja(j)
y(ir,1:nc) = y(ir,1:nc) + val(j)*x(i,1:nc)
end do
enddo
else if (alpha.eq.-done) then
do i=1,n
do j=irp(i), irp(i+1)-1
ir = ja(j)
y(ir,1:nc) = y(ir,1:nc) - val(j)*x(i,1:nc)
end do
enddo
else
do i=1,n
do j=irp(i), irp(i+1)-1
ir = ja(j)
y(ir,1:nc) = y(ir,1:nc) + alpha*val(j)*x(i,1:nc)
end do
enddo
end if
endif
if (is_triangle.and.is_unit) then
do i=1, min(m,n)
y(i,1:nc) = y(i,1:nc) + alpha*x(i,1:nc)
end do
end if
end subroutine d_csr_csmm_inner
end subroutine d_csr_csmm_impl
subroutine d_csr_cssv_impl(alpha,a,x,beta,y,info,trans)
use psb_error_mod
use psbn_d_csr_mat_mod, psb_protect_name => d_csr_cssv_impl
implicit none
class(psbn_d_csr_sparse_mat), intent(in) :: a
real(psb_dpk_), intent(in) :: alpha, beta, x(:)
real(psb_dpk_), intent(inout) :: y(:)
integer, intent(out) :: info
character, optional, intent(in) :: trans
character :: trans_
integer :: i,j,k,m,n, nnz, ir, jc
real(psb_dpk_) :: acc
real(psb_dpk_), allocatable :: tmp(:)
logical :: tra
Integer :: err_act
character(len=20) :: name='d_csr_cssv'
logical, parameter :: debug=.false.
info = 0
call psb_erractionsave(err_act)
if (present(trans)) then
trans_ = trans
else
trans_ = 'N'
end if
if (.not.a%is_asb()) then
info = 1121
call psb_errpush(info,name)
goto 9999
endif
tra = ((trans_=='T').or.(trans_=='t'))
m = a%get_nrows()
if (.not. (a%is_triangle())) then
info = 1121
call psb_errpush(info,name)
goto 9999
end if
if (alpha == dzero) then
if (beta == dzero) then
do i = 1, m
y(i) = dzero
enddo
else
do i = 1, m
y(i) = beta*y(i)
end do
endif
return
end if
if (beta == dzero) then
call inner_csrsv(tra,a%is_lower(),a%is_unit(),a%get_nrows(),&
& a%irp,a%ja,a%val,x,y)
if (alpha == done) then
! do nothing
else if (alpha == -done) then
do i = 1, m
y(i) = -y(i)
end do
else
do i = 1, m
y(i) = alpha*y(i)
end do
end if
else
allocate(tmp(m), stat=info)
if (info /= 0) then
return
end if
tmp(1:m) = x(1:m)
call inner_csrsv(tra,a%is_lower(),a%is_unit(),a%get_nrows(),&
& a%irp,a%ja,a%val,tmp,y)
do i = 1, m
y(i) = alpha*tmp(i) + beta*y(i)
end do
end if
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
contains
subroutine inner_csrsv(tra,lower,unit,n,irp,ja,val,x,y)
implicit none
logical, intent(in) :: tra,lower,unit
integer, intent(in) :: irp(*), ja(*),n
real(psb_dpk_), intent(in) :: val(*)
real(psb_dpk_), intent(in) :: x(*)
real(psb_dpk_), intent(out) :: y(*)
integer :: i,j,k,m, ir, jc
real(psb_dpk_) :: acc
if (.not.tra) then
if (lower) then
if (unit) then
do i=1, n
acc = dzero
do j=irp(i), irp(i+1)-1
acc = acc + val(j)*y(ja(j))
end do
y(i) = x(i) - acc
end do
else if (.not.unit) then
do i=1, n
acc = dzero
do j=irp(i), irp(i+1)-2
acc = acc + val(j)*y(ja(j))
end do
y(i) = (x(i) - acc)/val(irp(i+1)-1)
end do
end if
else if (.not.lower) then
if (unit) then
do i=n, 1, -1
acc = dzero
do j=irp(i), irp(i+1)-1
acc = acc + val(j)*y(ja(j))
end do
y(i) = x(i) - acc
end do
else if (.not.unit) then
do i=n, 1, -1
acc = dzero
do j=irp(i)+1, irp(i+1)-1
acc = acc + val(j)*y(ja(j))
end do
y(i) = (x(i) - acc)/val(irp(i))
end do
end if
end if
else if (tra) then
do i=1, n
y(i) = x(i)
end do
if (lower) then
if (unit) then
do i=n, 1, -1
acc = y(i)
do j=irp(i), irp(i+1)-1
jc = ja(j)
y(jc) = y(jc) - val(j)*acc
end do
end do
else if (.not.unit) then
do i=n, 1, -1
y(i) = y(i)/val(irp(i+1)-1)
acc = y(i)
do j=irp(i), irp(i+1)-2
jc = ja(j)
y(jc) = y(jc) - val(j)*acc
end do
end do
end if
else if (.not.lower) then
if (unit) then
do i=1, n
acc = y(i)
do j=irp(i), irp(i+1)-1
jc = ja(j)
y(jc) = y(jc) - val(j)*acc
end do
end do
else if (.not.unit) then
do i=1, n
y(i) = y(i)/val(irp(i))
acc = y(i)
do j=irp(i)+1, irp(i+1)-1
jc = ja(j)
y(jc) = y(jc) - val(j)*acc
end do
end do
end if
end if
end if
end subroutine inner_csrsv
end subroutine d_csr_cssv_impl
subroutine d_csr_cssm_impl(alpha,a,x,beta,y,info,trans)
use psb_error_mod
use psbn_d_csr_mat_mod, psb_protect_name => d_csr_cssm_impl
implicit none
class(psbn_d_csr_sparse_mat), intent(in) :: a
real(psb_dpk_), intent(in) :: alpha, beta, x(:,:)
real(psb_dpk_), intent(inout) :: y(:,:)
integer, intent(out) :: info
character, optional, intent(in) :: trans
character :: trans_
integer :: i,j,k,m,n, nnz, ir, jc, nc
real(psb_dpk_) :: acc
real(psb_dpk_), allocatable :: tmp(:,:)
logical :: tra
Integer :: err_act
character(len=20) :: name='d_base_csmm'
logical, parameter :: debug=.false.
info = 0
call psb_erractionsave(err_act)
if (present(trans)) then
trans_ = trans
else
trans_ = 'N'
end if
if (.not.a%is_asb()) then
info = 1121
call psb_errpush(info,name)
goto 9999
endif
tra = ((trans_=='T').or.(trans_=='t'))
m = a%get_nrows()
nc = min(size(x,2) , size(y,2))
if (.not. (a%is_triangle())) then
info = 1121
call psb_errpush(info,name)
goto 9999
end if
if (alpha == dzero) then
if (beta == dzero) then
do i = 1, m
y(i,:) = dzero
enddo
else
do i = 1, m
y(i,:) = beta*y(i,:)
end do
endif
return
end if
if (beta == dzero) then
call inner_csrsm(tra,a%is_lower(),a%is_unit(),a%get_nrows(),nc,&
& a%irp,a%ja,a%val,x,size(x,1),y,size(y,1),info)
do i = 1, m
y(i,1:nc) = alpha*y(i,1:nc)
end do
else
allocate(tmp(m,nc), stat=info)
if(info /= 0) then
info=4010
call psb_errpush(info,name,a_err='allocate')
goto 9999
end if
tmp(1:m,:) = x(1:m,1:nc)
call inner_csrsm(tra,a%is_lower(),a%is_unit(),a%get_nrows(),nc,&
& a%irp,a%ja,a%val,tmp,size(tmp,1),y,size(y,1),info)
do i = 1, m
y(i,1:nc) = alpha*tmp(i,1:nc) + beta*y(i,1:nc)
end do
end if
if(info /= 0) then
info=4010
call psb_errpush(info,name,a_err='inner_csrsm')
goto 9999
end if
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
contains
subroutine inner_csrsm(tra,lower,unit,nr,nc,&
& irp,ja,val,x,ldx,y,ldy,info)
implicit none
logical, intent(in) :: tra,lower,unit
integer, intent(in) :: nr,nc,ldx,ldy,irp(*),ja(*)
real(psb_dpk_), intent(in) :: val(*), x(ldx,*)
real(psb_dpk_), intent(out) :: y(ldy,*)
integer, intent(out) :: info
integer :: i,j,k,m, ir, jc
real(psb_dpk_), allocatable :: acc(:)
info = 0
allocate(acc(nc), stat=info)
if(info /= 0) then
info=4010
return
end if
if (.not.tra) then
if (lower) then
if (unit) then
do i=1, nr
acc = dzero
do j=a%irp(i), a%irp(i+1)-1
acc = acc + a%val(j)*y(a%ja(j),1:nc)
end do
y(i,1:nc) = x(i,1:nc) - acc
end do
else if (.not.unit) then
do i=1, nr
acc = dzero
do j=a%irp(i), a%irp(i+1)-2
acc = acc + a%val(j)*y(a%ja(j),1:nc)
end do
y(i,1:nc) = (x(i,1:nc) - acc)/a%val(a%irp(i+1)-1)
end do
end if
else if (.not.lower) then
if (unit) then
do i=nr, 1, -1
acc = dzero
do j=a%irp(i), a%irp(i+1)-1
acc = acc + a%val(j)*y(a%ja(j),1:nc)
end do
y(i,1:nc) = x(i,1:nc) - acc
end do
else if (.not.unit) then
do i=nr, 1, -1
acc = dzero
do j=a%irp(i)+1, a%irp(i+1)-1
acc = acc + a%val(j)*y(a%ja(j),1:nc)
end do
y(i,1:nc) = (x(i,1:nc) - acc)/a%val(a%irp(i))
end do
end if
end if
else if (tra) then
do i=1, nr
y(i,1:nc) = x(i,1:nc)
end do
if (lower) then
if (unit) then
do i=nr, 1, -1
acc = y(i,1:nc)
do j=a%irp(i), a%irp(i+1)-1
jc = a%ja(j)
y(jc,1:nc) = y(jc,1:nc) - a%val(j)*acc
end do
end do
else if (.not.unit) then
do i=nr, 1, -1
y(i,1:nc) = y(i,1:nc)/a%val(a%irp(i+1)-1)
acc = y(i,1:nc)
do j=a%irp(i), a%irp(i+1)-2
jc = a%ja(j)
y(jc,1:nc) = y(jc,1:nc) - a%val(j)*acc
end do
end do
end if
else if (.not.lower) then
if (unit) then
do i=1, nr
acc = y(i,1:nc)
do j=a%irp(i), a%irp(i+1)-1
jc = a%ja(j)
y(jc,1:nc) = y(jc,1:nc) - a%val(j)*acc
end do
end do
else if (.not.unit) then
do i=1, nr
y(i,1:nc) = y(i,1:nc)/a%val(a%irp(i))
acc = y(i,1:nc)
do j=a%irp(i)+1, a%irp(i+1)-1
jc = a%ja(j)
y(jc,1:nc) = y(jc,1:nc) - a%val(j)*acc
end do
end do
end if
end if
end if
end subroutine inner_csrsm
end subroutine d_csr_cssm_impl
function d_csr_csnmi_impl(a) result(res)
use psb_error_mod
use psbn_d_csr_mat_mod, psb_protect_name => d_csr_csnmi_impl
implicit none
class(psbn_d_csr_sparse_mat), intent(in) :: a
real(psb_dpk_) :: res
integer :: i,j,k,m,n, nr, ir, jc, nc
real(psb_dpk_) :: acc
logical :: tra
Integer :: err_act
character(len=20) :: name='d_csnmi'
logical, parameter :: debug=.false.
res = dzero
do i = 1, a%get_nrows()
acc = dzero
do j=a%irp(i),a%irp(i+1)-1
acc = acc + abs(a%val(j))
end do
res = max(res,acc)
end do
end function d_csr_csnmi_impl
!=====================================
!
!
!
! Data management
!
!
!
!
!
!=====================================
subroutine d_csr_csgetrow_impl(imin,imax,a,nz,ia,ja,val,info,&
& jmin,jmax,iren,append,nzin,rscale,cscale)
! Output is always in COO format
use psb_error_mod
use psb_const_mod
use psb_error_mod
use psbn_d_base_mat_mod
use psbn_d_csr_mat_mod, psb_protect_name => d_csr_csgetrow_impl
implicit none
class(psbn_d_csr_sparse_mat), intent(in) :: a
integer, intent(in) :: imin,imax
integer, intent(out) :: nz
integer, allocatable, intent(inout) :: ia(:), ja(:)
real(psb_dpk_), allocatable, intent(inout) :: val(:)
integer,intent(out) :: info
logical, intent(in), optional :: append
integer, intent(in), optional :: iren(:)
integer, intent(in), optional :: jmin,jmax, nzin
logical, intent(in), optional :: rscale,cscale
logical :: append_, rscale_, cscale_
integer :: nzin_, jmin_, jmax_, err_act, i
character(len=20) :: name='csget'
logical, parameter :: debug=.false.
call psb_erractionsave(err_act)
info = 0
if (present(jmin)) then
jmin_ = jmin
else
jmin_ = 1
endif
if (present(jmax)) then
jmax_ = jmax
else
jmax_ = a%get_ncols()
endif
if ((imax<imin).or.(jmax_<jmin_)) return
if (present(append)) then
append_=append
else
append_=.false.
endif
if ((append_).and.(present(nzin))) then
nzin_ = nzin
else
nzin_ = 0
endif
if (present(rscale)) then
rscale_ = rscale
else
rscale_ = .false.
endif
if (present(cscale)) then
cscale_ = cscale
else
cscale_ = .false.
endif
if ((rscale_.or.cscale_).and.(present(iren))) then
info = 583
call psb_errpush(info,name,a_err='iren (rscale.or.cscale)')
goto 9999
end if
call csr_getrow(imin,imax,jmin_,jmax_,a,nz,ia,ja,val,nzin_,append_,info,&
& iren)
if (rscale_) then
do i=nzin_+1, nzin_+nz
ia(i) = ia(i) - imin + 1
end do
end if
if (cscale_) then
do i=nzin_+1, nzin_+nz
ja(i) = ja(i) - jmin_ + 1
end do
end if
if (info /= 0) goto 9999
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
contains
subroutine csr_getrow(imin,imax,jmin,jmax,a,nz,ia,ja,val,nzin,append,info,&
& iren)
use psb_const_mod
use psb_error_mod
use psb_realloc_mod
use psb_sort_mod
implicit none
class(psbn_d_csr_sparse_mat), intent(in) :: a
integer :: imin,imax,jmin,jmax
integer, intent(out) :: nz
integer, allocatable, intent(inout) :: ia(:), ja(:)
real(psb_dpk_), allocatable, intent(inout) :: val(:)
integer, intent(in) :: nzin
logical, intent(in) :: append
integer :: info
integer, optional :: iren(:)
integer :: nzin_, nza, idx,i,j,k, nzt, irw, lrw
integer :: debug_level, debug_unit
character(len=20) :: name='coo_getrow'
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
nza = a%get_nzeros()
irw = imin
lrw = min(imax,a%get_nrows())
if (irw<0) then
info = 2
return
end if
if (append) then
nzin_ = nzin
else
nzin_ = 0
endif
nzt = a%irp(lrw+1)-a%irp(irw)
nz = 0
call psb_ensure_size(nzin_+nzt,ia,info)
if (info==0) call psb_ensure_size(nzin_+nzt,ja,info)
if (info==0) call psb_ensure_size(nzin_+nzt,val,info)
if (info /= 0) return
if (present(iren)) then
do i=irw, lrw
do j=a%irp(i), a%irp(i+1) - 1
if ((jmin <= a%ja(j)).and.(a%ja(j)<=jmax)) then
nzin_ = nzin_ + 1
nz = nz + 1
val(nzin_) = a%val(j)
ia(nzin_) = iren(i)
ja(nzin_) = iren(a%ja(j))
end if
enddo
end do
else
do i=irw, lrw
do j=a%irp(i), a%irp(i+1) - 1
if ((jmin <= a%ja(j)).and.(a%ja(j)<=jmax)) then
nzin_ = nzin_ + 1
nz = nz + 1
val(nzin_) = a%val(j)
ia(nzin_) = (i)
ja(nzin_) = (a%ja(j))
end if
enddo
end do
end if
end subroutine csr_getrow
end subroutine d_csr_csgetrow_impl
subroutine d_csr_csput_impl(nz,ia,ja,val,a,imin,imax,jmin,jmax,info,gtl)
use psb_error_mod
use psb_realloc_mod
use psbn_d_csr_mat_mod, psb_protect_name => d_csr_csput_impl
implicit none
class(psbn_d_csr_sparse_mat), intent(inout) :: a
real(psb_dpk_), intent(in) :: val(:)
integer, intent(in) :: nz, ia(:), ja(:), imin,imax,jmin,jmax
integer, intent(out) :: info
integer, intent(in), optional :: gtl(:)
Integer :: err_act
character(len=20) :: name='d_csr_csput'
logical, parameter :: debug=.false.
integer :: nza, i,j,k, nzl, isza, int_err(5)
info = 0
nza = a%get_nzeros()
if (a%is_bld()) then
! Build phase should only ever be in COO
info = 1121
else if (a%is_upd()) then
call d_csr_srch_upd(nz,ia,ja,val,a,&
& imin,imax,jmin,jmax,info,gtl)
if (info /= 0) then
info = 1121
end if
else
! State is wrong.
info = 1121
end if
if (info /= 0) then
call psb_errpush(info,name)
goto 9999
end if
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
contains
subroutine d_csr_srch_upd(nz,ia,ja,val,a,&
& imin,imax,jmin,jmax,info,gtl)
use psb_const_mod
use psb_realloc_mod
use psb_string_mod
use psb_sort_mod
implicit none
class(psbn_d_csr_sparse_mat), intent(inout) :: a
integer, intent(in) :: nz, imin,imax,jmin,jmax
integer, intent(in) :: ia(:),ja(:)
real(psb_dpk_), intent(in) :: val(:)
integer, intent(out) :: info
integer, intent(in), optional :: gtl(:)
integer :: i,ir,ic, ilr, ilc, ip, &
& i1,i2,nc,nnz,dupl,ng
integer :: debug_level, debug_unit
character(len=20) :: name='d_csr_srch_upd'
info = 0
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
dupl = a%get_dupl()
if (.not.a%is_sorted()) then
info = -4
return
end if
ilr = -1
ilc = -1
nnz = a%get_nzeros()
if (present(gtl)) then
ng = size(gtl)
select case(dupl)
case(psbn_dupl_ovwrt_,psbn_dupl_err_)
! Overwrite.
! Cannot test for error, should have been caught earlier.
ilr = -1
ilc = -1
do i=1, nz
ir = ia(i)
ic = ja(i)
if ((ir >=1).and.(ir<=ng).and.(ic>=1).and.(ic<=ng)) then
ir = gtl(ir)
ic = gtl(ic)
if ((ir > 0).and.(ir <= a%m)) then
i1 = a%irp(ir)
i2 = a%irp(ir+1)
nc=i2-i1
ip = psb_ibsrch(ic,nc,a%ja(i1:i2-1))
if (ip>0) then
a%val(i1+ip-1) = val(i)
else
if (debug_level >= psb_debug_serial_) &
& write(debug_unit,*) trim(name),&
& ': Was searching ',ic,' in: ',i1,i2,&
& ' : ',a%ja(i1:i2-1)
info = i
return
end if
else
if (debug_level >= psb_debug_serial_) &
& write(debug_unit,*) trim(name),&
& ': Discarding row that does not belong to us.'
end if
end if
end do
case(psbn_dupl_add_)
! Add
ilr = -1
ilc = -1
do i=1, nz
ir = ia(i)
ic = ja(i)
if ((ir >=1).and.(ir<=ng).and.(ic>=1).and.(ic<=ng)) then
ir = gtl(ir)
ic = gtl(ic)
if ((ir > 0).and.(ir <= a%m)) then
i1 = a%irp(ir)
i2 = a%irp(ir+1)
nc = i2-i1
ip = psb_ibsrch(ic,nc,a%ja(i1:i2-1))
if (ip>0) then
a%val(i1+ip-1) = a%val(i1+ip-1) + val(i)
else
if (debug_level >= psb_debug_serial_) &
& write(debug_unit,*) trim(name),&
& ': Was searching ',ic,' in: ',i1,i2,&
& ' : ',a%ja(i1:i2-1)
info = i
return
end if
else
if (debug_level >= psb_debug_serial_) &
& write(debug_unit,*) trim(name),&
& ': Discarding row that does not belong to us.'
end if
end if
end do
case default
info = -3
if (debug_level >= psb_debug_serial_) &
& write(debug_unit,*) trim(name),&
& ': Duplicate handling: ',dupl
end select
else
select case(dupl)
case(psbn_dupl_ovwrt_,psbn_dupl_err_)
! Overwrite.
! Cannot test for error, should have been caught earlier.
ilr = -1
ilc = -1
do i=1, nz
ir = ia(i)
ic = ja(i)
if ((ir > 0).and.(ir <= a%m)) then
i1 = a%irp(ir)
i2 = a%irp(ir+1)
nc=i2-i1
ip = psb_ibsrch(ic,nc,a%ja(i1:i2-1))
if (ip>0) then
a%val(i1+ip-1) = val(i)
else
if (debug_level >= psb_debug_serial_) &
& write(debug_unit,*) trim(name),&
& ': Was searching ',ic,' in: ',i1,i2,&
& ' : ',a%ja(i1:i2-1)
info = i
return
end if
else
if (debug_level >= psb_debug_serial_) &
& write(debug_unit,*) trim(name),&
& ': Discarding row that does not belong to us.'
end if
end do
case(psbn_dupl_add_)
! Add
ilr = -1
ilc = -1
do i=1, nz
ir = ia(i)
ic = ja(i)
if ((ir > 0).and.(ir <= a%m)) then
i1 = a%irp(ir)
i2 = a%irp(ir+1)
nc = i2-i1
ip = psb_ibsrch(ic,nc,a%ja(i1:i2-1))
if (ip>0) then
a%val(i1+ip-1) = a%val(i1+ip-1) + val(i)
else
info = i
return
end if
else
if (debug_level >= psb_debug_serial_) &
& write(debug_unit,*) trim(name),&
& ': Discarding row that does not belong to us.'
end if
end do
case default
info = -3
if (debug_level >= psb_debug_serial_) &
& write(debug_unit,*) trim(name),&
& ': Duplicate handling: ',dupl
end select
end if
end subroutine d_csr_srch_upd
end subroutine d_csr_csput_impl
subroutine d_cp_csr_from_coo_impl(a,b,info)
use psb_const_mod
use psb_realloc_mod
use psbn_d_base_mat_mod
use psbn_d_csr_mat_mod, psb_protect_name => d_cp_csr_from_coo_impl
implicit none
class(psbn_d_csr_sparse_mat), intent(inout) :: a
class(psbn_d_coo_sparse_mat), intent(in) :: b
integer, intent(out) :: info
type(psbn_d_coo_sparse_mat) :: tmp
integer, allocatable :: itemp(:)
!locals
logical :: rwshr_
Integer :: nza, nr, i,j,irw, idl,err_act, nc
Integer, Parameter :: maxtry=8
integer :: debug_level, debug_unit
character(len=20) :: name
info = 0
! This is to have fix_coo called behind the scenes
call tmp%cp_from_coo(b,info)
if (info ==0) call a%mv_from_coo(tmp,info)
end subroutine d_cp_csr_from_coo_impl
subroutine d_cp_csr_to_coo_impl(a,b,info)
use psb_const_mod
use psbn_d_base_mat_mod
use psbn_d_csr_mat_mod, psb_protect_name => d_cp_csr_to_coo_impl
implicit none
class(psbn_d_csr_sparse_mat), intent(in) :: a
class(psbn_d_coo_sparse_mat), intent(out) :: b
integer, intent(out) :: info
integer, allocatable :: itemp(:)
!locals
logical :: rwshr_
Integer :: nza, nr, nc,i,j,irw, idl,err_act
Integer, Parameter :: maxtry=8
integer :: debug_level, debug_unit
character(len=20) :: name
info = 0
nr = a%get_nrows()
nc = a%get_ncols()
nza = a%get_nzeros()
call b%allocate(nr,nc,nza)
do i=1, nr
do j=a%irp(i),a%irp(i+1)-1
b%ia(j) = i
b%ja(j) = a%ja(j)
b%val(j) = a%val(j)
end do
end do
call b%set_nzeros(a%get_nzeros())
call b%set_nrows(a%get_nrows())
call b%set_ncols(a%get_ncols())
call b%set_dupl(a%get_dupl())
call b%set_state(a%get_state())
call b%set_triangle(a%is_triangle())
call b%set_upper(a%is_upper())
call b%set_unit(a%is_unit())
call b%fix(info)
end subroutine d_cp_csr_to_coo_impl
subroutine d_mv_csr_to_coo_impl(a,b,info)
use psb_const_mod
use psb_realloc_mod
use psbn_d_base_mat_mod
use psbn_d_csr_mat_mod, psb_protect_name => d_mv_csr_to_coo_impl
implicit none
class(psbn_d_csr_sparse_mat), intent(inout) :: a
class(psbn_d_coo_sparse_mat), intent(out) :: b
integer, intent(out) :: info
integer, allocatable :: itemp(:)
!locals
logical :: rwshr_
Integer :: nza, nr, nc,i,j,irw, idl,err_act
Integer, Parameter :: maxtry=8
integer :: debug_level, debug_unit
character(len=20) :: name
info = 0
nr = a%get_nrows()
nc = a%get_ncols()
nza = a%get_nzeros()
call b%set_nzeros(a%get_nzeros())
call b%set_nrows(a%get_nrows())
call b%set_ncols(a%get_ncols())
call b%set_dupl(a%get_dupl())
call b%set_state(a%get_state())
call b%set_triangle(a%is_triangle())
call b%set_upper(a%is_upper())
call b%set_unit(a%is_unit())
call move_alloc(a%ja,b%ja)
call move_alloc(a%val,b%val)
call psb_realloc(nza,b%ia,info)
if (info /= 0) return
do i=1, nr
do j=a%irp(i),a%irp(i+1)-1
b%ia(j) = i
end do
end do
call a%free()
call b%fix(info)
end subroutine d_mv_csr_to_coo_impl
subroutine d_mv_csr_from_coo_impl(a,b,info)
use psb_const_mod
use psb_realloc_mod
use psbn_d_base_mat_mod
use psbn_d_csr_mat_mod, psb_protect_name => d_mv_csr_from_coo_impl
implicit none
class(psbn_d_csr_sparse_mat), intent(inout) :: a
class(psbn_d_coo_sparse_mat), intent(inout) :: b
integer, intent(out) :: info
integer, allocatable :: itemp(:)
!locals
logical :: rwshr_
Integer :: nza, nr, i,j,irw, idl,err_act, nc
Integer, Parameter :: maxtry=8
integer :: debug_level, debug_unit
character(len=20) :: name
info = 0
call b%fix(info)
if (info /= 0) return
nr = b%get_nrows()
nc = b%get_ncols()
nza = b%get_nzeros()
call a%set_nrows(b%get_nrows())
call a%set_ncols(b%get_ncols())
call a%set_dupl(b%get_dupl())
call a%set_state(b%get_state())
call a%set_triangle(b%is_triangle())
call a%set_upper(b%is_upper())
call a%set_unit(b%is_unit())
! Dirty trick: call move_alloc to have the new data allocated just once.
call move_alloc(b%ia,itemp)
call move_alloc(b%ja,a%ja)
call move_alloc(b%val,a%val)
call psb_realloc(max(nr+1,nc+1),a%irp,info)
call b%free()
if (nza <= 0) then
a%irp(:) = 1
else
a%irp(1) = 1
if (nr < itemp(nza)) then
write(debug_unit,*) trim(name),': RWSHR=.false. : ',&
&nr,itemp(nza),' Expect trouble!'
info = 12
end if
j = 1
i = 1
irw = itemp(j)
outer: do
inner: do
if (i >= irw) exit inner
if (i>nr) then
write(debug_unit,*) trim(name),&
& 'Strange situation: i>nr ',i,nr,j,nza,irw,idl
exit outer
end if
a%irp(i+1) = a%irp(i)
i = i + 1
end do inner
j = j + 1
if (j > nza) exit
if (itemp(j) /= irw) then
a%irp(i+1) = j
irw = itemp(j)
i = i + 1
endif
if (i>nr) exit
enddo outer
!
! Cleanup empty rows at the end
!
if (j /= (nza+1)) then
write(debug_unit,*) trim(name),': Problem from loop :',j,nza
info = 13
endif
do
if (i>nr) exit
a%irp(i+1) = j
i = i + 1
end do
endif
end subroutine d_mv_csr_from_coo_impl
subroutine d_mv_csr_to_fmt_impl(a,b,info)
use psb_const_mod
use psb_realloc_mod
use psbn_d_base_mat_mod
use psbn_d_csr_mat_mod, psb_protect_name => d_mv_csr_to_fmt_impl
implicit none
class(psbn_d_csr_sparse_mat), intent(inout) :: a
class(psbn_d_base_sparse_mat), intent(out) :: b
integer, intent(out) :: info
!locals
type(psbn_d_coo_sparse_mat) :: tmp
logical :: rwshr_
Integer :: nza, nr, i,j,irw, idl,err_act, nc
Integer, Parameter :: maxtry=8
integer :: debug_level, debug_unit
character(len=20) :: name
info = 0
select type (b)
class is (psbn_d_coo_sparse_mat)
call a%mv_to_coo(b,info)
! Need to fix trivial copies!
!!$ class is (psbn_d_csr_sparse_mat)
!!$ call a%mv_to_coo(b,info)
class default
call tmp%mv_from_fmt(a,info)
if (info == 0) call b%mv_from_coo(tmp,info)
end select
end subroutine d_mv_csr_to_fmt_impl
subroutine d_cp_csr_to_fmt_impl(a,b,info)
use psb_const_mod
use psb_realloc_mod
use psbn_d_base_mat_mod
use psbn_d_csr_mat_mod, psb_protect_name => d_cp_csr_to_fmt_impl
implicit none
class(psbn_d_csr_sparse_mat), intent(in) :: a
class(psbn_d_base_sparse_mat), intent(out) :: b
integer, intent(out) :: info
!locals
type(psbn_d_coo_sparse_mat) :: tmp
logical :: rwshr_
Integer :: nza, nr, i,j,irw, idl,err_act, nc
Integer, Parameter :: maxtry=8
integer :: debug_level, debug_unit
character(len=20) :: name
info = 0
select type (b)
class is (psbn_d_coo_sparse_mat)
call a%cp_to_coo(b,info)
class default
call tmp%cp_from_fmt(a,info)
if (info == 0) call b%mv_from_coo(tmp,info)
end select
end subroutine d_cp_csr_to_fmt_impl
subroutine d_mv_csr_from_fmt_impl(a,b,info)
use psb_const_mod
use psb_realloc_mod
use psbn_d_base_mat_mod
use psbn_d_csr_mat_mod, psb_protect_name => d_mv_csr_from_fmt_impl
implicit none
class(psbn_d_csr_sparse_mat), intent(inout) :: a
class(psbn_d_base_sparse_mat), intent(inout) :: b
integer, intent(out) :: info
!locals
type(psbn_d_coo_sparse_mat) :: tmp
logical :: rwshr_
Integer :: nza, nr, i,j,irw, idl,err_act, nc
Integer, Parameter :: maxtry=8
integer :: debug_level, debug_unit
character(len=20) :: name
info = 0
select type (b)
class is (psbn_d_coo_sparse_mat)
call a%mv_from_coo(b,info)
class default
call tmp%mv_from_fmt(b,info)
if (info == 0) call a%mv_from_coo(tmp,info)
end select
end subroutine d_mv_csr_from_fmt_impl
subroutine d_cp_csr_from_fmt_impl(a,b,info)
use psb_const_mod
use psb_realloc_mod
use psbn_d_base_mat_mod
use psbn_d_csr_mat_mod, psb_protect_name => d_cp_csr_from_fmt_impl
implicit none
class(psbn_d_csr_sparse_mat), intent(inout) :: a
class(psbn_d_base_sparse_mat), intent(in) :: b
integer, intent(out) :: info
!locals
type(psbn_d_coo_sparse_mat) :: tmp
logical :: rwshr_
Integer :: nza, nr, i,j,irw, idl,err_act, nc
Integer, Parameter :: maxtry=8
integer :: debug_level, debug_unit
character(len=20) :: name
info = 0
select type (b)
class is (psbn_d_coo_sparse_mat)
call a%cp_from_coo(b,info)
class default
call tmp%cp_from_fmt(b,info)
if (info == 0) call a%mv_from_coo(tmp,info)
end select
end subroutine d_cp_csr_from_fmt_impl