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236 lines
6.5 KiB
Fortran
236 lines
6.5 KiB
Fortran
! Parallel Sparse BLAS GPU plugin
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! (C) Copyright 2013
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!
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! Salvatore Filippone
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! Alessandro Fanfarillo
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions
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! are met:
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! 1. Redistributions of source code must retain the above copyright
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! notice, this list of conditions and the following disclaimer.
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! 2. Redistributions in binary form must reproduce the above copyright
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! notice, this list of conditions, and the following disclaimer in the
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! documentation and/or other materials provided with the distribution.
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! 3. The name of the PSBLAS group or the names of its contributors may
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! not be used to endorse or promote products derived from this
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! software without specific written permission.
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!
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! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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! ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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! TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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! POSSIBILITY OF SUCH DAMAGE.
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!
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subroutine psb_z_hll_csmm(alpha,a,x,beta,y,info,trans)
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use psb_base_mod
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use psb_z_hll_mat_mod, psb_protect_name => psb_z_hll_csmm
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implicit none
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class(psb_z_hll_sparse_mat), intent(in) :: a
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complex(psb_dpk_), intent(in) :: alpha, beta, x(:,:)
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complex(psb_dpk_), intent(inout) :: y(:,:)
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integer(psb_ipk_), intent(out) :: info
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character, optional, intent(in) :: trans
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character :: trans_
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integer(psb_ipk_) :: i,j,k,m,n, nnz, ir, jc, nxy,ldx,ldy,hksz,mxrwl
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complex(psb_dpk_), allocatable :: acc(:)
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logical :: tra, ctra
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Integer(Psb_ipk_) :: err_act
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character(len=20) :: name='z_hll_csmm'
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logical, parameter :: debug=.false.
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info = psb_success_
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call psb_erractionsave(err_act)
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if (present(trans)) then
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trans_ = trans
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else
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trans_ = 'N'
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end if
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nxy = min(size(x,2) , size(y,2) )
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ldx = size(x,1)
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ldy = size(y,1)
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if (a%is_dev()) call a%sync()
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tra = (psb_toupper(trans_) == 'T')
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ctra = (psb_toupper(trans_) == 'C')
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if (tra.or.ctra) then
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m = a%get_ncols()
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n = a%get_nrows()
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if (ldx<n) then
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info = 36
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call psb_errpush(info,name,i_err=(/3*ione,n/))
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goto 9999
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end if
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if (ldy<m) then
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info = 36
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call psb_errpush(info,name,i_err=(/5*ione,m/))
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goto 9999
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end if
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if (beta == zzero) then
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do i = 1, m
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y(i,1:nxy) = zzero
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enddo
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else
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do i = 1, m
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y(i,1:nxy) = beta*y(i,1:nxy)
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end do
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endif
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hksz = a%get_hksz()
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j=1
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do i=1,n,hksz
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ir = min(hksz,n-i+1)
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mxrwl = (a%hkoffs(j+1) - a%hkoffs(j))/hksz
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k = a%hkoffs(j) + 1
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call psb_z_hll_csmm_inner(i,ir,nxy,mxrwl,a%irn(i),&
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& alpha,a%ja(k),hksz,a%val(k),hksz,&
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& a%is_triangle(),a%is_unit(),&
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& x,ldx,zone,y,ldy,tra,ctra,info)
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if (info /= psb_success_) goto 9999
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j = j + 1
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end do
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else if (.not.tra) then
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n = a%get_ncols()
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m = a%get_nrows()
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if (ldx<n) then
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info = 36
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call psb_errpush(info,name,i_err=(/3*ione,n/))
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goto 9999
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end if
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if (ldy<m) then
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info = 36
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call psb_errpush(info,name,i_err=(/5*ione,m/))
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goto 9999
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end if
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hksz = a%get_hksz()
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j=1
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do i=1,m,hksz
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ir = min(hksz,m-i+1)
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mxrwl = (a%hkoffs(j+1) - a%hkoffs(j))/hksz
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k = a%hkoffs(j) + 1
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call psb_z_hll_csmm_inner(i,ir,nxy,mxrwl,a%irn(i),&
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& alpha,a%ja(k),hksz,a%val(k),hksz,&
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& a%is_triangle(),a%is_unit(),&
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& x,ldx,beta,y,ldy,tra,ctra,info)
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if (info /= psb_success_) goto 9999
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j = j + 1
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end do
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end if
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(err_act)
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return
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contains
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subroutine psb_z_hll_csmm_inner(ir,m,nc,n,irn,alpha,ja,ldj,val,ldv,&
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& is_triangle,is_unit,x,ldx,beta,y,ldy,tra,ctra,info)
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integer(psb_ipk_), intent(in) :: ir,m,n,nc,ldj,ldv,ja(ldj,*),irn(*),ldx,ldy
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complex(psb_dpk_), intent(in) :: alpha, beta, x(ldx,*),val(ldv,*)
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complex(psb_dpk_), intent(inout) :: y(ldy,*)
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logical, intent(in) :: is_triangle, is_unit, tra, ctra
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: i,j,k, m4, jc
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complex(psb_dpk_) :: acc(4), tmp(nc)
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info = psb_success_
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if (tra) then
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if (beta == zone) then
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do i=1,m
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do j=1, irn(i)
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jc = ja(i,j)
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y(jc,1:nc) = y(jc,1:nc) + alpha*val(i,j)*x(ir+i-1,1:nc)
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end do
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end do
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else
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info = -10
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end if
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else if (ctra) then
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if (beta == zone) then
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do i=1,m
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do j=1, irn(i)
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jc = ja(i,j)
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y(jc,1:nc) = y(jc,1:nc) + alpha*conjg(val(i,j))*x(ir+i-1,1:nc)
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end do
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end do
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else
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info = -10
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end if
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else if (.not.(tra.or.ctra)) then
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if (alpha == zzero) then
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if (beta == zzero) then
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do i=1,m
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y(ir+i-1,1:nc) = zzero
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end do
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else
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do i=1,m
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y(ir+i-1,1:nc) = beta*y(ir+i-1,1:nc)
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end do
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end if
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else
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if (beta == zzero) then
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do i=1,m
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tmp(1:nc) = zzero
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do j=1, irn(i)
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tmp(1:nc) = tmp(1:nc) + val(i,j)*x(ja(i,j),1:nc)
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end do
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y(ir+i-1,1:nc) = alpha*tmp(1:nc)
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end do
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else
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do i=1,m
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tmp(1:nc) = zzero
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do j=1, irn(i)
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tmp(1:nc) = tmp(1:nc) + val(i,j)*x(ja(i,j),1:nc)
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end do
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y(ir+i-1,1:nc) = alpha*tmp(1:nc) + beta*y(ir+i-1,1:nc)
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end do
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endif
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end if
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end if
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if (is_unit) then
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do i=1, min(m,n)
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y(ir+i-1,1:nc) = y(ir+i-1,1:nc) + alpha*x(ir+i-1,1:nc)
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end do
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end if
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end subroutine psb_z_hll_csmm_inner
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end subroutine psb_z_hll_csmm
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