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239 lines
5.8 KiB
Fortran
239 lines
5.8 KiB
Fortran
! File: psb_dgelp.f90
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!
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! Subroutine: psb_dgelp
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! ???????????
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!
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! Parameters:
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! trans - character.
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! iperm - integer.
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! x - real, dimension(:,:).
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! info - integer. Eventually returns an error code.
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subroutine psb_dgelp(trans,iperm,x,desc_a,info)
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!....assembly dense matrix x .....
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use psb_descriptor_type
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use psb_serial_mod
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use psb_const_mod
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use psb_psblas_mod
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use psb_error_mod
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implicit none
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type(psb_desc_type), intent(in) :: desc_a
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real(kind(1.d0)), intent(inout) :: x(:,:)
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integer, intent(inout) :: iperm(:),info
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character, intent(in) :: trans
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! local variables
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integer :: err, icontxt,nprow, &
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& npcol,me,mypcol,temp,lwork,nrow,ncol
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real(kind(1.d0)),pointer :: dtemp(:)
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integer :: int_err(5), i1sz, i2sz, dectype, i, err_act
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character(len=20) :: itrans
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real(kind(1.d0)),parameter :: one=1
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logical, parameter :: debug=.false.
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interface dgelp
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subroutine dgelp(trans,m,n,p,b,ldb,work,lwork,ierror)
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integer, intent(in) :: ldb, m, n, lwork
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integer, intent(out) :: ierror
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character, intent(in) :: trans
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double precision, intent(inout) :: b(ldb,*), work(*)
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integer, intent(in) :: p(*)
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end subroutine dgelp
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end interface
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interface isaperm
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logical function isaperm(n,ip)
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integer, intent(in) :: n
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integer, intent(inout) :: ip(*)
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end function isaperm
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end interface
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character(len=20) :: name, ch_err
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name = 'psb_dgelp'
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if(psb_get_errstatus().ne.0) return
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info=0
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call psb_erractionsave(err_act)
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icontxt=desc_a%matrix_data(psb_ctxt_)
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dectype=desc_a%matrix_data(psb_dec_type_)
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nrow = desc_a%matrix_data(psb_n_row_)
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ncol = desc_a%matrix_data(psb_n_col_)
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i1sz = size(x,dim=1)
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i2sz = size(x,dim=2)
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call blacs_gridinfo(icontxt, nprow, npcol, me, mypcol)
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if (debug) write(*,*) 'asb start: ',nprow,npcol,me,&
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&desc_a%matrix_data(psb_dec_type_)
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! ....verify blacs grid correctness..
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if (nprow.eq.-1) then
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info = 2010
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call psb_errpush(info,name)
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goto 9999
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else if (npcol.ne.1) then
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info = 2030
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int_err(1) = npcol
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call psb_errpush(info,name,i_err=int_err)
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goto 9999
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else if (.not.psb_is_asb_dec(dectype)) then
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info = 3110
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call psb_errpush(info,name)
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goto 9999
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endif
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if (.not.isaperm(i1sz,iperm)) then
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info = 70
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int_err(1) = 1
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call psb_errpush(info,name,i_err=int_err)
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goto 9999
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endif
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if (debug) write(*,*) 'asb: ',i1sz,i2sz,nrow,ncol
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allocate(dtemp(i1sz),stat=info)
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call dgelp(trans,i1sz,i2sz,iperm,x,i1sz,dtemp,i1sz,info)
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if(info.ne.0) then
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info=4010
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ch_err='dgelp'
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call psb_errpush(info,name,a_err=ch_err)
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end if
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deallocate(dtemp)
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act.eq.act_ret) then
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return
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else
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call psb_error(icontxt)
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end if
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return
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end subroutine psb_dgelp
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! Subroutine: psb_dgelpv
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! ???????????
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!
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! Parameters:
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! trans - character.
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! iperm - integer.
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! x - real, dimension(:).
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! info - integer. Eventually returns an error code.
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subroutine psb_dgelpv(trans,iperm,x,desc_a,info)
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!....assembly dense matrix x .....
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use psb_descriptor_type
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use psb_serial_mod
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use psb_const_mod
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use psb_psblas_mod
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use psb_error_mod
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implicit none
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type(psb_desc_type), intent(in) :: desc_a
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real(kind(1.d0)), intent(inout) :: x(:)
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integer, intent(inout) :: iperm(:), info
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character, intent(in) :: trans
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! local variables
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integer :: err, icontxt,nprow,npcol,me,mypcol,temp,lwork
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integer :: int_err(5), i1sz,nrow,ncol,dectype, i, err_act
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real(kind(1.d0)),pointer :: dtemp(:)
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double precision :: real_err(5)
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character :: itrans
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real(kind(1.d0)),parameter :: one=1
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logical, parameter :: debug=.false.
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interface dgelp
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subroutine dgelp(trans,m,n,p,b,ldb,work,lwork,ierror)
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integer, intent(in) :: ldb, m, n, lwork
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integer, intent(out) :: ierror
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character, intent(in) :: trans
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double precision, intent(inout) :: b(*), work(*)
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integer, intent(in) :: p(*)
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end subroutine dgelp
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end interface
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interface isaperm
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logical function isaperm(n,ip)
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integer, intent(in) :: n
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integer, intent(inout) :: ip(*)
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end function isaperm
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end interface
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character(len=20) :: name, ch_err
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name = 'psb_dgelpv'
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if(psb_get_errstatus().ne.0) return
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info=0
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call psb_erractionsave(err_act)
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i1sz = size(x)
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icontxt=desc_a%matrix_data(psb_ctxt_)
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dectype=desc_a%matrix_data(psb_dec_type_)
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nrow=desc_a%matrix_data(psb_n_row_)
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ncol=desc_a%matrix_data(psb_n_col_)
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call blacs_gridinfo(icontxt, nprow, npcol, me, mypcol)
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! ....verify blacs grid correctness..
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if (nprow.eq.-1) then
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info = 2010
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call psb_errpush(info,name)
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goto 9999
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else if (npcol.ne.1) then
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info = 2030
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int_err(1) = npcol
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call psb_errpush(info,name,i_err=int_err)
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goto 9999
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else if (.not.psb_is_asb_dec(dectype)) then
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info = 3110
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call psb_errpush(info,name)
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goto 9999
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endif
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if (debug) write(0,*) 'calling isaperm ',i1sz,size(iperm),trans
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if (.not.isaperm(i1sz,iperm)) then
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info = 70
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int_err(1) = 1
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call psb_errpush(info,name,i_err=int_err)
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goto 9999
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endif
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allocate(dtemp(i1sz),stat=info)
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call dgelp(trans,i1sz,1,iperm,x,i1sz,dtemp,i1sz,info)
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if(info.ne.0) then
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info=4010
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ch_err='dgelp'
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call psb_errpush(info,name,a_err=ch_err)
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end if
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deallocate(dtemp)
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act.eq.act_ret) then
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return
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else
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call psb_error(icontxt)
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end if
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return
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end subroutine psb_dgelpv
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