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psblas3/base/tools/psb_sspfree.f90

85 lines
3.0 KiB
Fortran

!!$
!!$ Parallel Sparse BLAS version 3.0
!!$ (C) Copyright 2006, 2007, 2008, 2009, 2010
!!$ Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari CNRS-IRIT, Toulouse
!!$
!!$ 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
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!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
!!$ POSSIBILITY OF SUCH DAMAGE.
!!$
!!$
! File: psb_sspfree.f90
!
! Subroutine: psb_sspfree
! Frees a sparse matrix structure.
!
! Arguments:
! a - type(psb_sspmat_type). The sparse matrix to be freed.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. return code.
!
subroutine psb_sspfree(a, desc_a,info)
use psb_sparse_mod, psb_protect_name => psb_sspfree
implicit none
!....parameters...
type(psb_desc_type), intent(in) :: desc_a
type(psb_sspmat_type), intent(inout) :: a
integer, intent(out) :: info
!...locals....
integer :: ictxt,err_act
character(len=20) :: name
if(psb_get_errstatus() /= 0) return
info=psb_success_
name = 'psb_sspfree'
call psb_erractionsave(err_act)
if (.not.allocated(desc_a%matrix_data)) then
info=psb_err_forgot_spall_
call psb_errpush(info,name)
return
else
ictxt = psb_cd_get_context(desc_a)
end if
!...deallocate a....
call a%free()
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error(ictxt)
return
end if
return
end subroutine psb_sspfree