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.
139 lines
4.5 KiB
Fortran
139 lines
4.5 KiB
Fortran
!!$
|
|
!!$ Parallel Sparse BLAS version 2.2
|
|
!!$ (C) Copyright 2006/2007/2008
|
|
!!$ Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari University of Rome Tor Vergata
|
|
!!$
|
|
!!$ 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_dnumbmm.f90
|
|
! Subroutine:
|
|
! Arguments:
|
|
!
|
|
!
|
|
! Note: This subroutine performs the numerical product of two sparse matrices.
|
|
! It is modeled after the SMMP package by R. Bank and C. Douglas, but is
|
|
! rewritten in Fortran 95 making use of our sparse matrix facilities.
|
|
!
|
|
!
|
|
|
|
subroutine psb_znumbmm(a,b,c)
|
|
use psb_spmat_type
|
|
use psb_serial_mod, psb_protect_name => psb_znumbmm
|
|
implicit none
|
|
|
|
type(psb_zspmat_type) :: a,b,c
|
|
complex(psb_dpk_), allocatable :: temp(:)
|
|
integer :: info
|
|
logical :: csra, csrb
|
|
|
|
allocate(temp(max(a%m,a%k,b%m,b%k)),stat=info)
|
|
if (info /= 0) then
|
|
return
|
|
endif
|
|
call psb_realloc(size(c%ia1),c%aspk,info)
|
|
!
|
|
! Note: we still have to test about possible performance hits.
|
|
!
|
|
!
|
|
csra = (psb_toupper(a%fida(1:3))=='CSR')
|
|
csrb = (psb_toupper(b%fida(1:3))=='CSR')
|
|
|
|
if (csra.and.csrb) then
|
|
call znumbmm(a%m,a%k,b%k,a%ia2,a%ia1,0,a%aspk,&
|
|
& b%ia2,b%ia1,0,b%aspk,&
|
|
& c%ia2,c%ia1,0,c%aspk,temp)
|
|
else
|
|
call inner_numbmm(a,b,c,temp,info)
|
|
end if
|
|
deallocate(temp)
|
|
return
|
|
|
|
contains
|
|
|
|
subroutine inner_numbmm(a,b,c,temp,info)
|
|
type(psb_zspmat_type) :: a,b,c
|
|
integer :: info
|
|
complex(psb_dpk_) :: temp(:)
|
|
integer, allocatable :: iarw(:), iacl(:),ibrw(:),ibcl(:)
|
|
complex(psb_dpk_), allocatable :: aval(:),bval(:)
|
|
integer :: maxlmn,i,j,m,n,k,l,nazr,nbzr,jj,minlm,minmn,minln
|
|
complex(psb_dpk_) :: ajj
|
|
|
|
|
|
n = a%m
|
|
m = a%k
|
|
l = b%k
|
|
maxlmn = max(l,m,n)
|
|
allocate(iarw(maxlmn),iacl(maxlmn),ibrw(maxlmn),ibcl(maxlmn),&
|
|
& aval(maxlmn),bval(maxlmn), stat=info)
|
|
if (info /= 0) then
|
|
return
|
|
endif
|
|
|
|
do i = 1,maxlmn
|
|
temp(i) = dzero
|
|
end do
|
|
minlm = min(l,m)
|
|
minln = min(l,n)
|
|
minmn = min(m,n)
|
|
do i = 1,n
|
|
|
|
call psb_sp_getrow(i,a,nazr,iarw,iacl,aval,info)
|
|
|
|
do jj=1, nazr
|
|
j=iacl(jj)
|
|
ajj = aval(jj)
|
|
if ((j<1).or.(j>m)) then
|
|
write(0,*) ' NUMBMM: Problem with A ',i,jj,j,m
|
|
endif
|
|
call psb_sp_getrow(j,b,nbzr,ibrw,ibcl,bval,info)
|
|
do k=1,nbzr
|
|
if ((ibcl(k)<1).or.(ibcl(k)>maxlmn)) then
|
|
write(0,*) 'Problem in NUMBM 1:',j,k,ibcl(k),maxlmn
|
|
else
|
|
temp(ibcl(k)) = temp(ibcl(k)) + ajj * bval(k)
|
|
endif
|
|
enddo
|
|
end do
|
|
do j = c%ia2(i),c%ia2(i+1)-1
|
|
if((c%ia1(j)<1).or. (c%ia1(j) > maxlmn)) then
|
|
write(0,*) ' NUMBMM: output problem',i,j,c%ia1(j),maxlmn
|
|
else
|
|
c%aspk(j) = temp(c%ia1(j))
|
|
temp(c%ia1(j)) = dzero
|
|
endif
|
|
end do
|
|
end do
|
|
|
|
|
|
|
|
|
|
end subroutine inner_numbmm
|
|
|
|
|
|
end subroutine psb_znumbmm
|