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193 lines
6.3 KiB
Fortran
193 lines
6.3 KiB
Fortran
!!$
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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_icdasb.f90
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!
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! Subroutine: psb_icdasb
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! Assemble the psblas communications descriptor: inner part.
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! The user callable routine is defined in the psb_tools_mod module.
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!
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! Arguments:
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! desc_a - type(psb_desc_type). The communication descriptor.
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! info - integer. return code.
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! ext_hv - logical Essentially this distinguishes a call
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! coming from the build of an extended
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! halo descriptor with respect to a normal call.
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!
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subroutine psb_icdasb(desc_a,info,ext_hv)
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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 psi_mod
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use psb_error_mod
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use psb_penv_mod
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#ifdef MPI_MOD
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use mpi
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#endif
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implicit none
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#ifdef MPI_H
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include 'mpif.h'
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#endif
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!...Parameters....
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type(psb_desc_type), intent(inout) :: desc_a
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integer, intent(out) :: info
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logical, intent(in), optional :: ext_hv
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!....Locals....
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integer :: int_err(5)
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integer,allocatable :: ovrlap_index(:),halo_index(:), ext_index(:)
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integer :: i,np,me, n_col, dectype, err_act, icomm
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integer :: ictxt,n_row
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logical :: ext_hv_
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integer :: debug_level, debug_unit
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character(len=20) :: name
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info = 0
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int_err(1) = 0
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name = 'psb_cdasb'
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call psb_erractionsave(err_act)
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debug_unit = psb_get_debug_unit()
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debug_level = psb_get_debug_level()
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ictxt = psb_cd_get_context(desc_a)
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dectype = psb_cd_get_dectype(desc_a)
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n_row = psb_cd_get_local_rows(desc_a)
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n_col = psb_cd_get_local_cols(desc_a)
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call psb_get_mpicomm(ictxt,icomm )
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! check on blacs grid
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call psb_info(ictxt, me, np)
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if (np == -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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endif
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if (.not.psb_is_ok_desc(desc_a)) then
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info = 600
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int_err(1) = dectype
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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 (present(ext_hv)) then
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ext_hv_ = ext_hv
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else
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ext_hv_ = .false.
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end if
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if (debug_level >= psb_debug_ext_) &
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& write(debug_unit, *) me,' ',trim(name),': start'
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if (psb_is_bld_desc(desc_a)) then
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if (debug_level >= psb_debug_ext_) &
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& write(debug_unit,*) me,' ',trim(name),': Checking rows insertion'
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! check if all local row are inserted
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do i=1,psb_cd_get_local_cols(desc_a)
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if (desc_a%loc_to_glob(i) < 0) then
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info=3100
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exit
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endif
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enddo
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if (info /= psb_no_err_) then
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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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! Trim size of loc_to_glob component.
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call psb_realloc(psb_cd_get_local_cols(desc_a),desc_a%loc_to_glob,info)
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! If large index space, we have to pre-process and rebuild
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! the list of halo indices as if it was in small index space
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if (psb_is_large_desc(desc_a)) then
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if (debug_level >= psb_debug_ext_) &
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& write(debug_unit,*) me,' ',trim(name),': Large descriptor, calling ldsc_pre_halo'
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call psi_ldsc_pre_halo(desc_a,ext_hv_,info)
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end if
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! Take out the lists for ovrlap, halo and ext...
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call psb_transfer(desc_a%ovrlap_index,ovrlap_index,info)
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call psb_transfer(desc_a%halo_index,halo_index,info)
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call psb_transfer(desc_a%ext_index,ext_index,info)
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if (debug_level >= psb_debug_ext_) &
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& write(debug_unit,*) me,' ',trim(name),': Final conversion'
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! Then convert and put them back where they belong.
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call psi_cnv_dsc(halo_index,ovrlap_index,ext_index,desc_a,info)
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if (info /= 0) then
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call psb_errpush(4010,name,a_err='psi_cnv_dsc')
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goto 9999
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end if
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deallocate(ovrlap_index, halo_index, ext_index, stat=info)
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if (info /= 0) then
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info =4000
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call psb_errpush(info,name)
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goto 9999
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end if
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! Finally, cleanup the AVL tree of indices, if any, as it is
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! only needed while in the build state.
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if (allocated(desc_a%ptree)) then
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call FreePairSearchTree(desc_a%ptree)
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deallocate(desc_a%ptree,stat=info)
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if (info /= 0) then
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info=2059
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call psb_errpush(info,name)
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goto 9999
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end if
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end if
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! Ok, register into MATRIX_DATA
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desc_a%matrix_data(psb_dec_type_) = psb_desc_asb_
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else
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info = 600
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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_level >= psb_debug_ext_) &
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& write(debug_unit,*) me,' ',trim(name),': Done'
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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.psb_act_ret_) then
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return
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else
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call psb_error(ictxt)
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end if
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return
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end subroutine psb_icdasb
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