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psblas3/base/tools/psb_dspfree.f90

81 lines
2.8 KiB
Fortran

!
! Parallel Sparse BLAS version 3.5
! (C) Copyright 2006-2018
! Salvatore Filippone
! Alfredo Buttari
!
! 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
! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! POSSIBILITY OF SUCH DAMAGE.
!
!
! File: psb_dspfree.f90
!
! Subroutine: psb_dspfree
! Frees a sparse matrix structure.
!
! Arguments:
! a - type(psb_dspmat_type). The sparse matrix to be freed.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. return code.
!
subroutine psb_dspfree(a, desc_a,info)
use psb_base_mod, psb_protect_name => psb_dspfree
implicit none
!....parameters...
type(psb_desc_type), intent(in) :: desc_a
type(psb_dspmat_type), intent(inout) :: a
integer(psb_ipk_), intent(out) :: info
!...locals....
integer(psb_ipk_) :: ictxt, err_act
character(len=20) :: name
if(psb_get_errstatus() /= 0) return
info=psb_success_
name = 'psb_dspfree'
call psb_erractionsave(err_act)
if (.not.psb_is_ok_desc(desc_a)) then
info = psb_err_forgot_spall_
call psb_errpush(info,name)
return
else
ictxt = desc_a%get_context()
end if
!...deallocate a....
call a%free()
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
end subroutine psb_dspfree