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psblas3/base/tools/psb_dgelp.f90

287 lines
8.8 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_dgelp.f90
!
! Subroutine: psb_dgelp
! ???????????
!
! Parameters:
! trans - character.
! iperm - integer.
! x - real, dimension(:,:).
! info - integer. Eventually returns an error code.
subroutine psb_dgelp(trans,iperm,x,desc_a,info)
!....assembly dense matrix x .....
use psb_descriptor_type
use psb_serial_mod
use psb_const_mod
use psb_psblas_mod
use psb_error_mod
use psb_penv_mod
implicit none
type(psb_desc_type), intent(in) :: desc_a
real(kind(1.d0)), intent(inout) :: x(:,:)
integer, intent(inout) :: iperm(:),info
character, intent(in) :: trans
! local variables
integer :: ictxt,np, me,nrow,ncol
real(kind(1.d0)),pointer :: dtemp(:)
integer :: int_err(5), i1sz, i2sz, dectype, i, err_act
real(kind(1.d0)),parameter :: one=1
logical, parameter :: debug=.false.
interface dgelp
subroutine dgelp(trans,m,n,p,b,ldb,work,lwork,ierror)
integer, intent(in) :: ldb, m, n, lwork
integer, intent(out) :: ierror
character, intent(in) :: trans
double precision, intent(inout) :: b(ldb,*), work(*)
integer, intent(in) :: p(*)
end subroutine dgelp
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_dgelp'
if(psb_get_errstatus() /= 0) return
info=0
call psb_erractionsave(err_act)
ictxt = psb_cd_get_context(desc_a)
dectype = psb_cd_get_dectype(desc_a)
nrow = psb_cd_get_local_rows(desc_a)
ncol = psb_cd_get_local_cols(desc_a)
i1sz = size(x,dim=1)
i2sz = size(x,dim=2)
call psb_info(ictxt, me, np)
if (debug) write(*,*) 'asb start: ',np,me,&
& psb_cd_get_dectype(desc_a)
! ....verify blacs grid correctness..
if (np == -1) then
info = 2010
call psb_errpush(info,name)
goto 9999
else if (.not.psb_is_asb_desc(desc_a)) then
info = 3110
call psb_errpush(info,name)
goto 9999
endif
if (.not.isaperm(i1sz,iperm)) then
info = 70
int_err(1) = 1
call psb_errpush(info,name,i_err=int_err)
goto 9999
endif
if (debug) write(*,*) 'asb: ',i1sz,i2sz,nrow,ncol
allocate(dtemp(i1sz),stat=info)
call dgelp(trans,i1sz,i2sz,iperm,x,i1sz,dtemp,i1sz,info)
if(info /= 0) then
info=4010
ch_err='dgelp'
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_dgelp
!!$
!!$ 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.
!!$
!!$
! Subroutine: psb_dgelpv
! ???????????
!
! Parameters:
! trans - character.
! iperm - integer.
! x - real, dimension(:).
! info - integer. Eventually returns an error code.
subroutine psb_dgelpv(trans,iperm,x,desc_a,info)
!....assembly dense matrix x .....
use psb_descriptor_type
use psb_serial_mod
use psb_const_mod
use psb_psblas_mod
use psb_error_mod
use psb_penv_mod
implicit none
type(psb_desc_type), intent(in) :: desc_a
real(kind(1.d0)), intent(inout) :: x(:)
integer, intent(inout) :: iperm(:), info
character, intent(in) :: trans
! local variables
integer :: ictxt,np,me
integer :: int_err(5), i1sz,nrow,ncol,dectype, err_act
real(kind(1.d0)),pointer :: dtemp(:)
real(kind(1.d0)),parameter :: one=1
logical, parameter :: debug=.false.
interface dgelp
subroutine dgelp(trans,m,n,p,b,ldb,work,lwork,ierror)
integer, intent(in) :: ldb, m, n, lwork
integer, intent(out) :: ierror
character, intent(in) :: trans
double precision, intent(inout) :: b(*), work(*)
integer, intent(in) :: p(*)
end subroutine dgelp
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_dgelpv'
if(psb_get_errstatus() /= 0) return
info=0
call psb_erractionsave(err_act)
i1sz = size(x)
ictxt = psb_cd_get_context(desc_a)
dectype = psb_cd_get_dectype(desc_a)
nrow = psb_cd_get_local_rows(desc_a)
ncol = psb_cd_get_local_cols(desc_a)
call psb_info(ictxt, me, np)
! ....verify blacs grid correctness..
if (np == -1) then
info = 2010
call psb_errpush(info,name)
goto 9999
else if (.not.psb_is_asb_desc(desc_a)) then
info = 3110
call psb_errpush(info,name)
goto 9999
endif
if (debug) write(0,*) 'calling isaperm ',i1sz,size(iperm),trans
if (.not.isaperm(i1sz,iperm)) then
info = 70
int_err(1) = 1
call psb_errpush(info,name,i_err=int_err)
goto 9999
endif
allocate(dtemp(i1sz),stat=info)
call dgelp(trans,i1sz,1,iperm,x,i1sz,dtemp,i1sz,info)
if(info /= 0) then
info=4010
ch_err='dgelp'
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_dgelpv