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psblas3/base/serial/psb_zgelp.f90

263 lines
8.1 KiB
Fortran

!!$
!!$ Parallel Sparse BLAS v2.0
!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari University of Rome Tor Vergata
!!$
!!$ Redistribution and use in source and binary forms, with or without
!!$ modification, are permitted provided that the following conditions
!!$ are met:
!!$ 1. Redistributions of source code must retain the above copyright
!!$ notice, this list of conditions and the following disclaimer.
!!$ 2. Redistributions in binary form must reproduce the above copyright
!!$ notice, this list of conditions, and the following disclaimer in the
!!$ documentation and/or other materials provided with the distribution.
!!$ 3. The name of the PSBLAS group or the names of its contributors may
!!$ not be used to endorse or promote products derived from this
!!$ software without specific written permission.
!!$
!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
!!$ POSSIBILITY OF SUCH DAMAGE.
!!$
!!$
! File: psb_zgelp.f90
!
17 years ago
!
! Subroutine: psb_zgelp
17 years ago
! Apply a left permutation to a dense matrix
!
! Arguments:
! trans - character.
! iperm - integer.
! x - real, dimension(:,:).
17 years ago
! info - integer. Return code.
subroutine psb_zgelp(trans,iperm,x,info)
use psb_serial_mod, psb_protect_name => psb_zgelp
use psb_const_mod
use psb_error_mod
implicit none
complex(kind(1.d0)), intent(inout) :: x(:,:)
integer, intent(in) :: iperm(:)
integer, intent(out) :: info
character, intent(in) :: trans
! local variables
integer :: ictxt
complex(kind(1.d0)),allocatable :: dtemp(:)
integer, allocatable :: itemp(:)
integer :: int_err(5), i1sz, i2sz, err_act
real(kind(1.d0)),parameter :: one=1
logical, parameter :: debug=.false.
interface
subroutine zgelp(trans,m,n,p,b,ldb,work,lwork,ierror)
integer, intent(in) :: ldb, m, n, lwork
integer, intent(out) :: ierror
character, intent(in) :: trans
complex(kind(1.d0)), intent(inout) :: b(ldb,*), work(*)
integer, intent(in) :: p(*)
end subroutine zgelp
end interface
interface isaperm
logical function isaperm(n,ip)
integer, intent(in) :: n
integer, intent(inout) :: ip(*)
end function isaperm
end interface
character(len=20) :: name, ch_err
name = 'psb_zgelp'
if(psb_get_errstatus() /= 0) return
info=0
call psb_erractionsave(err_act)
i1sz = size(x,dim=1)
i2sz = size(x,dim=2)
if (debug) write(*,*) 'gelp: ',i1sz,i2sz
allocate(dtemp(i1sz),itemp(size(iperm)),stat=info)
if (info /= 0) then
info=2040
call psb_errpush(info,name)
goto 9999
end if
itemp(:) = iperm(:)
if (.not.isaperm(i1sz,itemp)) then
info = 70
int_err(1) = 1
call psb_errpush(info,name,i_err=int_err)
goto 9999
endif
call zgelp(trans,i1sz,i2sz,itemp,x,i1sz,dtemp,i1sz,info)
if(info.ne.0) then
info=4010
ch_err='zgelp'
call psb_errpush(info,name,a_err=ch_err)
end if
deallocate(dtemp,itemp)
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_ret_) then
return
else
call psb_error(ictxt)
end if
return
end subroutine psb_zgelp
!!$
!!$ Parallel Sparse BLAS v2.0
!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari University of Rome Tor Vergata
!!$
!!$ Redistribution and use in source and binary forms, with or without
!!$ modification, are permitted provided that the following conditions
!!$ are met:
!!$ 1. Redistributions of source code must retain the above copyright
!!$ notice, this list of conditions and the following disclaimer.
!!$ 2. Redistributions in binary form must reproduce the above copyright
!!$ notice, this list of conditions, and the following disclaimer in the
!!$ documentation and/or other materials provided with the distribution.
!!$ 3. The name of the PSBLAS group or the names of its contributors may
!!$ not be used to endorse or promote products derived from this
!!$ software without specific written permission.
!!$
!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
!!$ POSSIBILITY OF SUCH DAMAGE.
!!$
!!$
17 years ago
!
! WARNING: This routine should be changed and moved to the serial part
! i.e. taking out the descriptor.
!
!
! Subroutine: psb_zgelpv
17 years ago
! Apply a left permutation to a dense matrix
!
! Arguments:
! trans - character.
! iperm - integer.
! x - real, dimension(:).
17 years ago
! info - integer. Return code.
subroutine psb_zgelpv(trans,iperm,x,info)
use psb_serial_mod, psb_protect_name => psb_zgelpv
use psb_const_mod
use psb_error_mod
implicit none
complex(kind(1.d0)), intent(inout) :: x(:)
integer, intent(in) :: iperm(:)
integer, intent(out) :: info
character, intent(in) :: trans
! local variables
integer :: ictxt
integer :: int_err(5), i1sz, err_act
complex(kind(1.d0)),allocatable :: dtemp(:)
integer, allocatable :: itemp(:)
real(kind(1.d0)),parameter :: one=1
logical, parameter :: debug=.false.
interface zgelp
subroutine zgelp(trans,m,n,p,b,ldb,work,lwork,ierror)
integer, intent(in) :: ldb, m, n, lwork
integer, intent(out) :: ierror
character, intent(in) :: trans
complex(kind(1.d0)), intent(inout) :: b(*), work(*)
integer, intent(in) :: p(*)
end subroutine zgelp
end interface
interface isaperm
logical function isaperm(n,ip)
integer, intent(in) :: n
integer, intent(inout) :: ip(*)
end function isaperm
end interface
character(len=20) :: name, ch_err
name = 'psb_zgelpv'
if(psb_get_errstatus() /= 0) return
info=0
call psb_erractionsave(err_act)
i1sz = size(x)
if (debug) write(*,*) 'gelp: ',i1sz
allocate(dtemp(i1sz),itemp(size(iperm)),stat=info)
if (info /= 0) then
info=2040
call psb_errpush(info,name)
goto 9999
end if
itemp(:) = iperm(:)
if (.not.isaperm(i1sz,itemp)) then
info = 70
int_err(1) = 1
call psb_errpush(info,name,i_err=int_err)
goto 9999
endif
call zgelp(trans,i1sz,1,itemp,x,i1sz,dtemp,i1sz,info)
if(info.ne.0) then
info=4010
ch_err='zgelp'
call psb_errpush(info,name,a_err=ch_err)
end if
deallocate(dtemp)
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_ret_) then
return
else
call psb_error(ictxt)
end if
return
end subroutine psb_zgelpv