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128 lines
4.1 KiB
Fortran
128 lines
4.1 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_dsprn.f90
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!
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! Subroutine: psb_dsprn
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! Reinit sparse matrix structure for psblas routines.
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!
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! Parameters:
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! a - type(<psb_dspmat_type>). The sparse matrix to be reinitiated.
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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_dsprn(a, 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_serial_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(in) :: desc_a
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Type(psb_dspmat_type), intent(inout) :: a
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integer, intent(out) :: info
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!locals
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Integer :: icontxt
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Integer :: nprow,npcol,myrow,mycol,err,err_act
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logical, parameter :: debug=.false.
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integer :: int_err(5)
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real(kind(1.d0)) :: real_err(5)
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character(len=20) :: name, ch_err
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info = 0
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err = 0
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int_err(1)=0
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name = 'psb_dsprn'
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call psb_erractionsave(err_act)
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icontxt = desc_a%matrix_data(psb_ctxt_)
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call blacs_gridinfo(icontxt, nprow, npcol, myrow, mycol)
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if (debug) &
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&write(*,*) 'starting spalloc ',icontxt,nprow,npcol,myrow
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! ....verify blacs grid correctness..
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if (npcol.ne.1) then
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info = 2030
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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) write(*,*) 'got through igamx2d '
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if (.not.psb_is_asb_dec(desc_a%matrix_data(psb_dec_type_))) then
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info=590
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call psb_errpush(info,name)
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goto 9999
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endif
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select case(psb_sp_getifld(psb_state_,a,info))
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case(psb_spmat_asb_)
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a%aspk(:) = dzero
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if (psb_sp_getifld(psb_upd_,a,info)==psb_upd_perm_) then
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if(a%fida(1:3).eq.'JAD') then
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a%ia1(a%infoa(psb_upd_pnt_)+psb_nnz_) = 0
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else
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a%ia2(a%infoa(psb_upd_pnt_)+psb_nnz_) = 0
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endif
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endif
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a%infoa(psb_state_) = psb_spmat_upd_
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case(psb_spmat_bld_)
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! in this case do nothing. this allows sprn to be called
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! right after allocate, with spins doing the right thing.
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! hopefully :-)
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case( psb_spmat_upd_)
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case default
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info=591
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call psb_errpush(info,name)
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end select
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if (info /= 0) goto 9999
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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_abort) then
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call psb_error(icontxt)
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return
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end if
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return
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end subroutine psb_dsprn
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