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psblas3/base/serial/psb_sspspmm.f90

122 lines
3.8 KiB
Fortran

!!$
!!$ Parallel Sparse BLAS version 3.1
!!$ (C) Copyright 2006, 2007, 2008, 2009, 2010, 2012, 2013
!!$ 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
!!$ 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_sspspmm.f90
! Subroutine:
! Arguments:
!
!
!
subroutine psb_sspspmm(a,b,c,info)
use psb_base_mod, psb_protect_name => psb_sspspmm
implicit none
type(psb_sspmat_type), intent(in) :: a,b
type(psb_sspmat_type), intent(out) :: c
integer(psb_ipk_), intent(out) :: info
type(psb_s_csr_sparse_mat), allocatable :: ccsr
type(psb_s_csc_sparse_mat), allocatable :: ccsc
integer(psb_ipk_) :: err_act
character(len=*), parameter :: name='psb_spspmm'
logical :: done_spmm
call psb_erractionsave(err_act)
info = psb_success_
if ((a%is_null()) .or.(b%is_null())) then
info = psb_err_invalid_mat_state_
call psb_errpush(info,name)
goto 9999
endif
!
! Shortcuts for special cases
!
done_spmm = .false.
select type(aa=>a%a)
class is (psb_s_csr_sparse_mat)
select type(ba=>b%a)
class is (psb_s_csr_sparse_mat)
allocate(ccsr,stat=info)
if (info == psb_success_) then
call psb_scsrspspmm(aa,ba,ccsr,info)
else
info = psb_err_alloc_dealloc_
end if
if (info == psb_success_) call move_alloc(ccsr,c%a)
done_spmm = .true.
end select
class is (psb_s_csc_sparse_mat)
select type(ba=>b%a)
class is (psb_s_csc_sparse_mat)
allocate(ccsc,stat=info)
if (info == psb_success_) then
call psb_scscspspmm(aa,ba,ccsc,info)
else
info = psb_err_alloc_dealloc_
end if
if (info == psb_success_) call move_alloc(ccsc,c%a)
done_spmm = .true.
end select
end select
!
! General code
!
if (.not.done_spmm) then
call psb_symbmm(a,b,c,info)
if (info == psb_success_) call psb_numbmm(a,b,c)
end if
if (info /= psb_success_) then
call psb_errpush(info,name)
goto 9999
end if
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine psb_sspspmm