Third batch of restructuring preconditioners.
Salvatore Filippone
19 years ago
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!!$
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!!$ Parallel Sparse BLAS v2.0
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!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari University of Rome Tor Vergata
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!!$
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!!$ Redistribution and use in source and binary forms, with or without
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!!$ modification, are permitted provided that the following conditions
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!!$ are met:
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!!$ 1. Redistributions of source code must retain the above copyright
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!!$ notice, this list of conditions and the following disclaimer.
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!!$ 2. Redistributions in binary form must reproduce the above copyright
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!!$ notice, this list of conditions, and the following disclaimer in the
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!!$ documentation and/or other materials provided with the distribution.
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!!$ 3. The name of the PSBLAS group or the names of its contributors may
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!!$ not be used to endorse or promote products derived from this
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!!$ software without specific written permission.
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!!$
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!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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!!$ POSSIBILITY OF SUCH DAMAGE.
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!!$
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!!$
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! File: psb_cdtransfer.f90
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!
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! Subroutine: psb_cdtransfer
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! Transfers data and allocation from in to out (just like MOVE_ALLOC).
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!
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! Parameters:
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! desc_in - type(<psb_desc_type>). The communication descriptor to be transferred.
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! desc_out - type(<psb_desc_type>). The output communication descriptor.
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! info - integer. Eventually returns an error code.
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subroutine psb_cdtransfer(desc_in, desc_out, info)
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use psb_descriptor_type
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use psb_serial_mod
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use psb_realloc_mod
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use psb_const_mod
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use psb_error_mod
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implicit none
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!....parameters...
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type(psb_desc_type), intent(inout) :: desc_in
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type(psb_desc_type), intent(out) :: desc_out
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integer, intent(out) :: info
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!locals
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integer :: nprow,npcol,me,mypcol,&
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& icontxt, isz, dectype, err_act, err
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integer :: int_err(5),temp(1)
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real(kind(1.d0)) :: real_err(5)
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logical, parameter :: debug=.false.,debugprt=.false.
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character(len=20) :: name, char_err
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if (debug) write(0,*) me,'Entered CDTRANSFER'
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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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name = 'psb_cdtransfer'
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icontxt=desc_in%matrix_data(psb_ctxt_)
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! check on blacs grid
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call blacs_gridinfo(icontxt, nprow, npcol, me, mypcol)
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if (debug) write(0,*) me,'Entered CDTRANSFER'
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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,int_err)
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goto 9999
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endif
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call psb_nullify_desc(desc_out)
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desc_out%matrix_data => desc_in%matrix_data
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desc_out%halo_index => desc_in%halo_index
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desc_out%bnd_elem => desc_in%bnd_elem
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desc_out%ovrlap_elem => desc_in%ovrlap_elem
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desc_out%ovrlap_index => desc_in%ovrlap_index
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desc_out%loc_to_glob => desc_in%loc_to_glob
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desc_out%glob_to_loc => desc_in%glob_to_loc
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desc_out%lprm => desc_in%lprm
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desc_out%idx_space => desc_in%idx_space
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call psb_nullify_desc(desc_in)
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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_cdtransfer
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