module psbn_d_csr_sparse_mat_mod use psbn_d_base_mat_mod type, extends(psbn_d_base_sparse_mat) :: psbn_d_csr_sparse_mat logical :: sorted integer, allocatable :: irp(:), ja(:) real(psb_dpk_), allocatable :: val(:) contains procedure, pass(a) :: get_nzeros => d_csr_get_nzeros procedure, pass(a) :: d_base_csmm => d_csr_csmm procedure, pass(a) :: d_base_csmv => d_csr_csmv procedure, pass(a) :: d_base_cssm => d_csr_cssm procedure, pass(a) :: d_base_cssv => d_csr_cssv procedure, pass(a) :: reallocate_nz => d_csr_reallocate_nz procedure, pass(a) :: csins => d_csr_csins end type psbn_d_csr_sparse_mat contains subroutine d_csr_reallocate_nz(nz,a) use psb_error_mod use psb_realloc_mod integer, intent(in) :: nz class(psbn_d_csr_sparse_mat), intent(inout) :: a Integer :: err_act, info character(len=20) :: name='d_csr_reallocate_nz' logical, parameter :: debug=.false. call psb_erractionsave(err_act) call psb_realloc(nx,a%ja,info) if (info == 0) call psb_realloc(nx,a%val,info) if (info == 0) call psb_realloc(max(nx,a%m+1,a%n+1),a%irp,info) if (info /= 0) then call psb_errpush(4000,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 end subroutine d_csr_reallocate_nz function d_csr_get_nzeros(a) result(res) class(psbn_d_csr_sparse_mat), intent(in) :: a integer :: res res = a%irp(a%m+1)-1 end function d_csr_get_nzeros subroutine d_csr_csins(nz,val,ia,ja,a,imin,imax,jmin,jmax,info,gtl) use psb_const_mod use psb_error_mod 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_csins' logical, parameter :: debug=.false. integer :: nza, i,j,k, nzl, isza, int_err(5) call psb_erractionsave(err_act) info = 0 if (nz <= 0) then info = 10 int_err(1)=1 call psb_errpush(info,name,i_err=int_err) goto 9999 end if if (size(ia) < nz) then info = 35 int_err(1)=2 call psb_errpush(info,name,i_err=int_err) goto 9999 end if if (size(ja) < nz) then info = 35 int_err(1)=3 call psb_errpush(info,name,i_err=int_err) goto 9999 end if if (size(val) < nz) then info = 35 int_err(1)=4 call psb_errpush(info,name,i_err=int_err) goto 9999 end if if (nz == 0) return 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 if (a%is_sorted()) then !!$#ifdef FIXED_NAG_SEGV !!$ call d_csr_srch_upd(nz,ia,ja,val,a,& !!$ & imin,imax,jmin,jmax,info,gtl) !!$#else call d_csr_srch_upd(nz,ia,ja,val,& & a%irp,a%ja,a%val,& & a%get_dupl(),a%get_nzeros(),a%get_nrows(),& & info,gtl) !!$#endif else 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 !!$#ifdef FIXED_NAG_SEGV !!$ 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_serial_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. !!$ 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) !!$ if ((ir > 0).and.(ir <= a%m)) then !!$ ic = gtl(ic) !!$ if (ir /= ilr) then !!$ i1 = psb_ibsrch(ir,nnz,a%ia) !!$ i2 = i1 !!$ do !!$ if (i2+1 > nnz) exit !!$ if (a%ia(i2+1) /= a%ia(i2)) exit !!$ i2 = i2 + 1 !!$ end do !!$ do !!$ if (i1-1 < 1) exit !!$ if (a%ia(i1-1) /= a%ia(i1)) exit !!$ i1 = i1 - 1 !!$ end do !!$ ilr = ir !!$ else !!$ i1 = 1 !!$ i2 = 1 !!$ end if !!$ nc = i2-i1+1 !!$ ip = psb_issrch(ic,nc,a%ja(i1:i2)) !!$ if (ip>0) then !!$ 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.' !!$ endif !!$ end if !!$ end do !!$ case(psbn_dupl_add_) !!$ ! Add !!$ 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 !!$ !!$ if (ir /= ilr) then !!$ i1 = psb_ibsrch(ir,nnz,a%ia) !!$ i2 = i1 !!$ do !!$ if (i2+1 > nnz) exit !!$ if (a%ia(i2+1) /= a%ia(i2)) exit !!$ i2 = i2 + 1 !!$ end do !!$ do !!$ if (i1-1 < 1) exit !!$ if (a%ia(i1-1) /= a%ia(i1)) exit !!$ i1 = i1 - 1 !!$ end do !!$ ilr = ir !!$ else !!$ i1 = 1 !!$ i2 = 1 !!$ end if !!$ nc = i2-i1+1 !!$ ip = psb_issrch(ic,nc,a%ja(i1:i2)) !!$ 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 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. !!$ do i=1, nz !!$ ir = ia(i) !!$ ic = ja(i) !!$ if ((ir > 0).and.(ir <= a%m)) then !!$ !!$ if (ir /= ilr) then !!$ i1 = psb_ibsrch(ir,nnz,a%ia) !!$ i2 = i1 !!$ do !!$ if (i2+1 > nnz) exit !!$ if (a%ia(i2+1) /= a%ia(i2)) exit !!$ i2 = i2 + 1 !!$ end do !!$ do !!$ if (i1-1 < 1) exit !!$ if (a%ia(i1-1) /= a%ia(i1)) exit !!$ i1 = i1 - 1 !!$ end do !!$ ilr = ir !!$ else !!$ i1 = 1 !!$ i2 = 1 !!$ end if !!$ nc = i2-i1+1 !!$ ip = psb_issrch(ic,nc,a%ja(i1:i2)) !!$ if (ip>0) then !!$ a%val(i1+ip-1) = val(i) !!$ else !!$ info = i !!$ return !!$ end if !!$ end if !!$ end do !!$ !!$ case(psbn_dupl_add_) !!$ ! Add !!$ do i=1, nz !!$ ir = ia(i) !!$ ic = ja(i) !!$ if ((ir > 0).and.(ir <= a%m)) then !!$ !!$ if (ir /= ilr) then !!$ i1 = psb_ibsrch(ir,nnz,a%ia) !!$ i2 = i1 !!$ do !!$ if (i2+1 > nnz) exit !!$ if (a%ia(i2+1) /= a%ia(i2)) exit !!$ i2 = i2 + 1 !!$ end do !!$ do !!$ if (i1-1 < 1) exit !!$ if (a%ia(i1-1) /= a%ia(i1)) exit !!$ i1 = i1 - 1 !!$ end do !!$ ilr = ir !!$ else !!$ i1 = 1 !!$ i2 = 1 !!$ end if !!$ nc = i2-i1+1 !!$ ip = psb_issrch(ic,nc,a%ja(i1:i2)) !!$ if (ip>0) then !!$ a%val(i1+ip-1) = a%val(i1+ip-1) + val(i) !!$ else !!$ info = i !!$ return !!$ 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 !!$ !!$ end if !!$ !!$ end subroutine d_csr_srch_upd !!$ !!$#else subroutine d_csr_srch_upd(nz,ia,ja,val,& & airp,aja,aval,dupl,nza,nra,& & info,gtl) use psb_error_mod use psb_sort_mod implicit none integer, intent(inout) :: airp(:),aja(:) real(psb_dpk_), intent(inout) :: aval(:) integer, intent(in) :: nz, dupl,nza, nra integer, intent(in) :: ia(:),ja(:) real(psb_dpk_), intent(in) :: val(:) integer, intent(out) :: info integer, intent(in), optional :: gtl(:) integer :: debug_level, debug_unit character(len=20) :: name='d_csr_srch_upd' integer :: i,ir,ic, ilr, ilc, ip, & & i1,i2,nc,lb,ub,m, ng info = 0 debug_unit = psb_get_debug_unit() debug_level = psb_get_debug_level() 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 = airp(ir) i2 = airp(ir+1) nc=i2-i1 ip = psb_ibsrch(ic,nc,aja(i1:i2-1)) if (ip>0) then aval(i1+ip-1) = val(i) else if (debug_level >= psb_debug_serial_) & & write(debug_unit,*) trim(name),& & ': Was searching ',ic,' in: ',i1,i2,& & ' : ',aja(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 = airp(ir) i2 = airp(ir+1) nc = i2-i1 ip = psb_ibsrch(ic,nc,aja(i1:i2-1)) if (ip>0) then aval(i1+ip-1) = aval(i1+ip-1) + val(i) else if (debug_level >= psb_debug_serial_) & & write(debug_unit,*) trim(name),& & ': Was searching ',ic,' in: ',i1,i2,& & ' : ',aja(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 = airp(ir) i2 = airp(ir+1) nc=i2-i1 ip = psb_ibsrch(ic,nc,aja(i1:i2-1)) if (ip>0) then aval(i1+ip-1) = val(i) else if (debug_level >= psb_debug_serial_) & & write(debug_unit,*) trim(name),& & ': Was searching ',ic,' in: ',i1,i2,& & ' : ',aja(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 = airp(ir) i2 = airp(ir+1) nc = i2-i1 ip = psb_ibsrch(ic,nc,aja(i1:i2-1)) if (ip>0) then aval(i1+ip-1) = aval(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 !!$#endif end subroutine d_csr_csins subroutine d_csr_csmv(alpha,a,x,beta,y,info,trans) use psb_error_mod 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 write(0,*) 'Error: csmv called on an unassembled mat' info = 1121 call psb_errpush(info,name) goto 9999 endif tra = ((trans_=='T').or.(trans_=='t')) if (tra) then m = a%get_ncols() n = a%get_nrows() else n = a%get_ncols() m = a%get_nrows() 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 (.not.tra) then if (beta == dzero) then if (alpha == done) then do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j)) enddo y(i) = acc end do else if (alpha == -done) then do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j)) enddo y(i) = -acc end do else do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%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 = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j)) enddo y(i) = y(i) + acc end do else if (alpha == -done) then do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j)) enddo y(i) = y(i) -acc end do else do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%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 = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j)) enddo y(i) = -y(i) + acc end do else if (alpha == -done) then do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j)) enddo y(i) = -y(i) -acc end do else do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j)) enddo y(i) = -y(i) + alpha*acc end do end if else if (alpha == done) then do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j)) enddo y(i) = beta*y(i) + acc end do else if (alpha == -done) then do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j)) enddo y(i) = beta*y(i) - acc end do else do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%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=a%irp(i), a%irp(i+1)-1 ir = a%ja(j) y(ir) = y(ir) + a%val(j)*x(i) end do enddo else if (alpha.eq.-done) then do i=1,n do j=a%irp(i), a%irp(i+1)-1 ir = a%ja(j) y(ir) = y(ir) - a%val(j)*x(i) end do enddo else do i=1,n do j=a%irp(i), a%irp(i+1)-1 ir = a%ja(j) y(ir) = y(ir) + alpha*a%val(j)*x(i) end do enddo end if endif if (a%is_unit()) then do i=1, min(m,n) y(i) = y(i) + alpha*x(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 end subroutine d_csr_csmv subroutine d_csr_csmm(alpha,a,x,beta,y,info,trans) use psb_error_mod 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. call psb_erractionsave(err_act) if (present(trans)) then trans_ = trans else trans_ = 'N' end if tra = ((trans_=='T').or.(trans_=='t')) if (.not.a%is_asb()) then info = 1121 call psb_errpush(info,name) goto 9999 endif 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 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 = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j),:) enddo y(i,:) = acc end do else if (alpha == -done) then do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j),:) enddo y(i,:) = -acc end do else do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%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 = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j),:) enddo y(i,:) = y(i,:) + acc end do else if (alpha == -done) then do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j),:) enddo y(i,:) = y(i,:) -acc end do else do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%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 = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j),:) enddo y(i,:) = -y(i,:) + acc end do else if (alpha == -done) then do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j),:) enddo y(i,:) = -y(i,:) -acc end do else do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j),:) enddo y(i,:) = -y(i,:) + alpha*acc end do end if else if (alpha == done) then do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j),:) enddo y(i,:) = beta*y(i,:) + acc end do else if (alpha == -done) then do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%ja(j),:) enddo y(i,:) = beta*y(i,:) - acc end do else do i=1,m acc = zero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j) * x(a%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=a%irp(i), a%irp(i+1)-1 ir = a%ja(j) y(ir,:) = y(ir,:) + a%val(j)*x(i,:) end do enddo else if (alpha.eq.-done) then do i=1,n do j=a%irp(i), a%irp(i+1)-1 ir = a%ja(j) y(ir,:) = y(ir,:) - a%val(j)*x(i,:) end do enddo else do i=1,n do j=a%irp(i), a%irp(i+1)-1 ir = a%ja(j) y(ir,:) = y(ir,:) + alpha*a%val(j)*x(i,:) end do enddo end if endif if (a%is_unit()) then do i=1, min(m,n) y(i,:) = y(i,:) + alpha*x(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 end subroutine d_csr_csmm subroutine d_csr_cssv(alpha,a,x,beta,y,info,trans) use psb_error_mod 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. 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,x,y) do i = 1, m y(i) = alpha*y(i) end do else allocate(tmp(m), stat=info) if (info /= 0) then write(0,*) 'Memory allocation error in CSRSV ' return end if tmp(1:m) = x(1:m) call inner_csrsv(tra,a,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,a,x,y) logical, intent(in) :: tra class(psbn_d_csr_sparse_mat), intent(in) :: a 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 (a%is_lower()) then if (a%is_unit()) then do i=1, a%get_nrows() acc = dzero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j)*x(a%ja(j)) end do y(i) = x(i) - acc end do else if (.not.a%is_unit()) then do i=1, a%get_nrows() acc = dzero do j=a%irp(i), a%irp(i+1)-2 acc = acc + a%val(j)*x(a%ja(j)) end do y(i) = (x(i) - acc)/a%val(a%irp(i+1)-1) end do end if else if (a%is_upper()) then if (a%is_unit()) then do i=a%get_nrows(), 1, -1 acc = dzero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j)*x(a%ja(j)) end do y(i) = x(i) - acc end do else if (.not.a%is_unit()) then do i=a%get_nrows(), 1, -1 acc = dzero do j=a%irp(i)+1, a%irp(i+1)-1 acc = acc + a%val(j)*x(a%ja(j)) end do y(i) = (x(i) - acc)/a%val(a%irp(i)) end do end if end if else if (tra) then do i=1, a%get_nrows() y(i) = x(i) end do if (a%is_lower()) then if (a%is_unit()) then do i=a%get_nrows(), 1, -1 acc = y(i) do j=a%irp(i), a%irp(i+1)-1 jc = a%ja(j) y(jc) = y(jc) - a%val(j)*acc end do end do else if (.not.a%is_unit()) then do i=a%get_nrows(), 1, -1 y(i) = y(i)/a%val(a%irp(i+1)-1) acc = y(i) do j=a%irp(i), a%irp(i+1)-2 jc = a%ja(j) y(jc) = y(jc) - a%val(j)*acc end do end do end if else if (a%is_upper()) then if (a%is_unit()) then do i=1, a%get_nrows() acc = y(i) do j=a%irp(i), a%irp(i+1)-1 jc = a%ja(j) y(jc) = y(jc) - a%val(j)*acc end do end do else if (.not.a%is_unit()) then do i=1, a%get_nrows() y(i) = y(i)/a%val(a%irp(i)) acc = y(i) do j=a%irp(i)+1, a%irp(i+1)-1 jc = a%ja(j) y(jc) = y(jc) - a%val(j)*acc end do end do end if end if end if end subroutine inner_csrsv end subroutine d_csr_cssv subroutine d_csr_cssm(alpha,a,x,beta,y,info,trans) use psb_error_mod 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. 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 write(0,*) 'Called SM on a non-triangular mat!' 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,x,y,info) do i = 1, m y(i,:) = alpha*y(i,:) 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,:) call inner_csrsm(tra,a,tmp,y,info) do i = 1, m y(i,:) = alpha*tmp(i,:) + beta*y(i,:) 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,a,x,y,info) logical, intent(in) :: tra class(psbn_d_csr_sparse_mat), intent(in) :: a real(psb_dpk_), intent(in) :: x(:,:) real(psb_dpk_), intent(out) :: y(:,:) integer, intent(out) :: info integer :: i,j,k,m, ir, jc real(psb_dpk_), allocatable :: acc(:) allocate(acc(size(x,2)), stat=info) if(info /= 0) then info=4010 return end if if (.not.tra) then if (a%is_lower()) then if (a%is_unit()) then do i=1, a%get_nrows() acc = dzero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j)*x(a%ja(j),:) end do y(i,:) = x(i,:) - acc end do else if (.not.a%is_unit()) then do i=1, a%get_nrows() acc = dzero do j=a%irp(i), a%irp(i+1)-2 acc = acc + a%val(j)*x(a%ja(j),:) end do y(i,:) = (x(i,:) - acc)/a%val(a%irp(i+1)-1) end do end if else if (a%is_upper()) then if (a%is_unit()) then do i=a%get_nrows(), 1, -1 acc = dzero do j=a%irp(i), a%irp(i+1)-1 acc = acc + a%val(j)*x(a%ja(j),:) end do y(i,:) = x(i,:) - acc end do else if (.not.a%is_unit()) then do i=a%get_nrows(), 1, -1 acc = dzero do j=a%irp(i)+1, a%irp(i+1)-1 acc = acc + a%val(j)*x(a%ja(j),:) end do y(i,:) = (x(i,:) - acc)/a%val(a%irp(i)) end do end if end if else if (tra) then do i=1, a%get_nrows() y(i,:) = x(i,:) end do if (a%is_lower()) then if (a%is_unit()) then do i=a%get_nrows(), 1, -1 acc = y(i,:) do j=a%irp(i), a%irp(i+1)-1 jc = a%ja(j) y(jc,:) = y(jc,:) - a%val(j)*acc end do end do else if (.not.a%is_unit()) then do i=a%get_nrows(), 1, -1 y(i,:) = y(i,:)/a%val(a%irp(i+1)-1) acc = y(i,:) do j=a%irp(i), a%irp(i+1)-2 jc = a%ja(j) y(jc,:) = y(jc,:) - a%val(j)*acc end do end do end if else if (a%is_upper()) then if (a%is_unit()) then do i=1, a%get_nrows() acc = y(i,:) do j=a%irp(i), a%irp(i+1)-1 jc = a%ja(j) y(jc,:) = y(jc,:) - a%val(j)*acc end do end do else if (.not.a%is_unit()) then do i=1, a%get_nrows() y(i,:) = y(i,:)/a%val(a%irp(i)) acc = y(i,:) do j=a%irp(i)+1, a%irp(i+1)-1 jc = a%ja(j) y(jc,:) = y(jc,:) - a%val(j)*acc end do end do end if end if end if end subroutine inner_csrsm end subroutine d_csr_cssm end module psbn_d_csr_sparse_mat_mod