You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
272 lines
7.8 KiB
Fortran
272 lines
7.8 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
|
|
!!$ 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_zsymbmm.f90
|
|
! Subroutine:
|
|
! Arguments:
|
|
!
|
|
!
|
|
! Note: This subroutine performs the symbolic product of two sparse matrices.
|
|
! It is modeled after the SMMP package by R. Bank and C. Douglas, but is
|
|
! rewritten in Fortran 95/2003 making use of our sparse matrix facilities.
|
|
!
|
|
|
|
subroutine psb_zsymbmm(a,b,c,info)
|
|
use psb_base_mod, psb_protect_name => psb_zsymbmm
|
|
implicit none
|
|
|
|
type(psb_zspmat_type), intent(in) :: a,b
|
|
type(psb_zspmat_type), intent(out) :: c
|
|
integer(psb_ipk_), intent(out) :: info
|
|
type(psb_z_csr_sparse_mat), allocatable :: ccsr
|
|
integer(psb_ipk_) :: err_act
|
|
character(len=*), parameter :: name='psb_symbmm'
|
|
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
|
|
|
|
allocate(ccsr,stat=info)
|
|
|
|
if (info == psb_success_) then
|
|
call psb_symbmm(a%a,b%a,ccsr,info)
|
|
else
|
|
info = psb_err_alloc_dealloc_
|
|
end if
|
|
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
call move_alloc(ccsr,c%a)
|
|
|
|
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_zsymbmm
|
|
|
|
subroutine psb_zbase_symbmm(a,b,c,info)
|
|
use psb_mat_mod
|
|
use psb_serial_mod, psb_protect_name => psb_zbase_symbmm
|
|
implicit none
|
|
|
|
class(psb_z_base_sparse_mat), intent(in) :: a,b
|
|
type(psb_z_csr_sparse_mat), intent(out) :: c
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), allocatable :: itemp(:)
|
|
integer(psb_ipk_) :: nze, ma,na,mb,nb
|
|
character(len=20) :: name
|
|
integer(psb_ipk_) :: err_act
|
|
name='psb_symbmm'
|
|
call psb_erractionsave(err_act)
|
|
info = psb_success_
|
|
|
|
ma = a%get_nrows()
|
|
na = a%get_ncols()
|
|
mb = b%get_nrows()
|
|
nb = b%get_ncols()
|
|
|
|
|
|
if ( mb /= na ) then
|
|
write(psb_err_unit,*) 'Mismatch in SYMBMM: ',ma,na,mb,nb
|
|
endif
|
|
allocate(itemp(max(ma,na,mb,nb)),stat=info)
|
|
if (info /= psb_success_) then
|
|
info = psb_err_alloc_dealloc_
|
|
call psb_Errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
!
|
|
! Note: we need to test whether there is a performance impact
|
|
! in not using the original Douglas & Bank code.
|
|
!
|
|
select type(a)
|
|
type is (psb_z_csr_sparse_mat)
|
|
select type(b)
|
|
type is (psb_z_csr_sparse_mat)
|
|
call csr_symbmm(a,b,c,itemp,info)
|
|
class default
|
|
call gen_symbmm(a,b,c,itemp,info)
|
|
end select
|
|
class default
|
|
call gen_symbmm(a,b,c,itemp,info)
|
|
end select
|
|
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
|
|
call psb_realloc(size(c%ja),c%val,info)
|
|
deallocate(itemp)
|
|
|
|
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
|
|
|
|
contains
|
|
|
|
subroutine csr_symbmm(a,b,c,itemp,info)
|
|
type(psb_z_csr_sparse_mat), intent(in) :: a,b
|
|
type(psb_z_csr_sparse_mat), intent(out) :: c
|
|
integer(psb_ipk_) :: itemp(:)
|
|
integer(psb_ipk_), intent(out) :: info
|
|
interface
|
|
subroutine symbmm (n, m, l, ia, ja, diaga, &
|
|
& ib, jb, diagb, ic, jc, diagc, index)
|
|
import :: psb_ipk_
|
|
integer(psb_ipk_) :: n,m,l, ia(*), ja(*), diaga, ib(*), jb(*), diagb,&
|
|
& diagc, index(*)
|
|
integer(psb_ipk_), allocatable :: ic(:),jc(:)
|
|
end subroutine symbmm
|
|
end interface
|
|
integer(psb_ipk_) :: nze, ma,na,mb,nb
|
|
|
|
info = psb_success_
|
|
ma = a%get_nrows()
|
|
na = a%get_ncols()
|
|
mb = b%get_nrows()
|
|
nb = b%get_ncols()
|
|
|
|
nze = max(ma+1,2*ma)
|
|
call c%allocate(ma,nb,nze)
|
|
call symbmm(ma,na,nb,a%irp,a%ja,0,&
|
|
& b%irp,b%ja,0,&
|
|
& c%irp,c%ja,0,itemp)
|
|
|
|
end subroutine csr_symbmm
|
|
subroutine gen_symbmm(a,b,c,index,info)
|
|
class(psb_z_base_sparse_mat), intent(in) :: a,b
|
|
type(psb_z_csr_sparse_mat), intent(out) :: c
|
|
integer(psb_ipk_) :: index(:),info
|
|
integer(psb_ipk_), allocatable :: iarw(:), iacl(:),ibrw(:),ibcl(:)
|
|
integer(psb_ipk_) :: maxlmn,i,j,m,n,k,l,istart,length,nazr,nbzr,jj,minlm,minmn
|
|
integer(psb_ipk_) :: nze, ma,na,mb,nb
|
|
|
|
ma = a%get_nrows()
|
|
na = a%get_ncols()
|
|
mb = b%get_nrows()
|
|
nb = b%get_ncols()
|
|
|
|
nze = max(ma+1,2*ma)
|
|
call c%allocate(ma,nb,nze)
|
|
|
|
n = ma
|
|
m = na
|
|
l = nb
|
|
maxlmn = max(l,m,n)
|
|
|
|
allocate(iarw(maxlmn),iacl(maxlmn),ibrw(maxlmn),ibcl(maxlmn),&
|
|
& stat=info)
|
|
if (info /= psb_success_) then
|
|
info = psb_err_alloc_dealloc_
|
|
return
|
|
endif
|
|
|
|
do i=1,maxlmn
|
|
index(i)=0
|
|
end do
|
|
|
|
c%irp(1)=1
|
|
minlm = min(l,m)
|
|
minmn = min(m,n)
|
|
|
|
main: do i=1,n
|
|
istart=-1
|
|
length=0
|
|
call a%csget(i,i,nazr,iarw,iacl,info)
|
|
do jj=1, nazr
|
|
|
|
j=iacl(jj)
|
|
|
|
if ((j<1).or.(j>m)) then
|
|
write(psb_err_unit,*) ' SymbMM: Problem with A ',i,jj,j,m
|
|
info = 1
|
|
return
|
|
endif
|
|
call b%csget(j,j,nbzr,ibrw,ibcl,info)
|
|
do k=1,nbzr
|
|
if ((ibcl(k)<1).or.(ibcl(k)>maxlmn)) then
|
|
write(psb_err_unit,*) 'Problem in SYMBMM 1:',j,k,ibcl(k),maxlmn
|
|
info=psb_err_pivot_too_small_
|
|
return
|
|
else
|
|
if(index(ibcl(k)) == 0) then
|
|
index(ibcl(k))=istart
|
|
istart=ibcl(k)
|
|
length=length+1
|
|
endif
|
|
endif
|
|
end do
|
|
end do
|
|
|
|
c%irp(i+1)=c%irp(i)+length
|
|
|
|
if (c%irp(i+1) > size(c%ja)) then
|
|
if (n > (2*i)) then
|
|
nze = max(c%irp(i+1), c%irp(i)*((n+i-1)/i))
|
|
else
|
|
nze = max(c%irp(i+1), nint((dble(c%irp(i))*(dble(n)/i))) )
|
|
endif
|
|
call psb_realloc(nze,c%ja,info)
|
|
end if
|
|
do j= c%irp(i),c%irp(i+1)-1
|
|
c%ja(j)=istart
|
|
istart=index(istart)
|
|
index(c%ja(j))=0
|
|
end do
|
|
call psb_msort(c%ja(c%irp(i):c%irp(i)+length-1))
|
|
index(i) = 0
|
|
end do main
|
|
|
|
end subroutine gen_symbmm
|
|
|
|
end subroutine psb_zbase_symbmm
|