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163 lines
5.0 KiB
Fortran
163 lines
5.0 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_zspcnv.f90
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!
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! Subroutine: psb_zspcnv
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! converts sparse matrix a into b
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!
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! Parameters:
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! a - type(<psb_zspmat_type>). The sparse input matrix.
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! b - type(<psb_zspmat_type>). The sparse output matrix.
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! desc_a - type(<psb_desc_type>). The communication descriptor.
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! info - integer. Eventually returns an error code.
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!
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subroutine psb_zspcnv(a,b,desc_a,info)
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use psb_descriptor_type
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use psb_spmat_type
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use psb_realloc_mod
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use psb_serial_mod
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use psb_const_mod
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use psb_error_mod
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use psb_penv_mod
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implicit none
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!...parameters....
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type(psb_zspmat_type), intent(in) :: a
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type(psb_zspmat_type), intent(out) :: b
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type(psb_desc_type), intent(in) :: desc_a
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integer, intent(out) :: info
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!....locals....
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integer :: int_err(5)
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integer :: ia1_size,ia2_size,aspk_size,err_act&
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& ,i,err,np,me,n_col
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integer, allocatable :: i_temp(:)
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integer :: dectype
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integer :: ictxt,n_row
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logical, parameter :: debug=.false.
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character(len=20) :: name, ch_err
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if(psb_get_errstatus() /= 0) return
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info=0
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name = 'psb_zspcnv'
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call psb_erractionsave(err_act)
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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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! 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_dec((dectype))) then
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info = 600
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int_err(1) = dectype
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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 (0, *) name,' begin matrix assembly...'
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ia1_size = size(a%ia1)
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ia2_size = size(a%ia2)
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aspk_size = size(a%aspk)
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if (debug) write (0, *) name,' sizes',ia1_size,ia2_size,aspk_size
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b%m=n_row
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b%k=n_col
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call psb_sp_all(b,ia1_size,ia2_size,aspk_size,info)
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call psb_csdp(a,b,info)
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if(info /= no_err) then
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info=4010
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ch_err='psb_csdp'
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call psb_errpush(info, name, a_err=ch_err)
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goto 9999
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end if
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!
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! hmmm, have to fix b%pl and b%pr according to a%pl and a%pr!!!
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! should work (crossed fingers :-)
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if (a%pr(1) /= 0) then
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if (b%pr(1) /= 0) then
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allocate(i_temp(n_col))
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do i=1, n_col
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i_temp(i) = b%pr(a%pr(i))
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enddo
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call psb_transfer(i_temp,b%pr,info)
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else
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allocate(i_temp(n_col))
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do i=1, n_col
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i_temp(i) = a%pr(i)
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enddo
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call psb_transfer(i_temp,b%pr,info)
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endif
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endif
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if (a%pl(1) /= 0) then
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if (b%pr(1) /= 0) then
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allocate(i_temp(n_row))
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do i=1, n_row
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i_temp(i) = a%pl(b%pl(i))
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enddo
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call psb_transfer(i_temp,b%pl,info)
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else
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allocate(i_temp(n_row))
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do i=1, n_row
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i_temp(i) = a%pl(i)
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enddo
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call psb_transfer(i_temp,b%pl,info)
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endif
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endif
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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 == act_abort) then
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call psb_error(ictxt)
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return
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end if
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return
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end subroutine psb_zspcnv
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