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136 lines
4.2 KiB
Fortran
136 lines
4.2 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_d_cuda_hlg_csmv(alpha,a,x,beta,y,info,trans)
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use psb_base_mod
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#ifdef HAVE_SPGPU
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use hlldev_mod
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use psb_vectordev_mod
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use psb_d_cuda_hlg_mat_mod, psb_protect_name => psb_d_cuda_hlg_csmv
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#else
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use psb_d_cuda_hlg_mat_mod
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#endif
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implicit none
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class(psb_d_cuda_hlg_sparse_mat), intent(in) :: a
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real(psb_dpk_), intent(in) :: alpha, beta, x(:)
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real(psb_dpk_), intent(inout) :: y(:)
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integer, intent(out) :: info
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character, optional, intent(in) :: trans
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character :: trans_
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integer :: i,j,k,m,n, nnz, ir, jc
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real(psb_dpk_) :: acc
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type(c_ptr) :: gpX, gpY
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logical :: tra
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Integer :: err_act
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character(len=20) :: name='d_cuda_hlg_csmv'
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logical, parameter :: debug=.false.
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call psb_erractionsave(err_act)
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info = psb_success_
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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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if (.not.a%is_asb()) then
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info = psb_err_invalid_mat_state_
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call psb_errpush(info,name)
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goto 9999
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endif
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tra = (psb_toupper(trans_) == 'T').or.(psb_toupper(trans_)=='C')
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if (tra) then
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m = a%get_ncols()
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n = a%get_nrows()
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else
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n = a%get_ncols()
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m = a%get_nrows()
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end if
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if (size(x,1)<n) then
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info = 36
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call psb_errpush(info,name,i_err=(/3*ione,n,izero,izero,izero/))
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goto 9999
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end if
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if (size(y,1)<m) then
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info = 36
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call psb_errpush(info,name,i_err=(/5*ione,m,izero,izero,izero/))
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goto 9999
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end if
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#ifdef HAVE_SPGPU
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if (tra) then
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call a%psb_d_hll_sparse_mat%spmm(alpha,x,beta,y,info,trans)
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else
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!
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! Just to test, move X/Y to/from the GPU.
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!
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if (info == 0) &
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& info = FallocMultiVecDevice(gpX,1,size(x,1),spgpu_type_double)
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if (alpha /= dzero) then
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if (info == 0) &
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& info = writeMultiVecDevice(gpX,x)
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end if
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if (info == 0) &
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& info = FallocMultiVecDevice(gpY,1,size(y,1),spgpu_type_double)
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if (beta /= dzero) then
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if (info == 0) &
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& info = writeMultiVecDevice(gpY,y)
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end if
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if (info == 0) &
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& info = spmvHllDevice(a%deviceMat,alpha,gpX,beta,gpY)
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if (info == 0) &
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& info = readMultiVecDevice(gpY,y)
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if (info /= 0) goto 9999
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call freeMultiVecDevice(gpX)
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call freeMultiVecDevice(gpY)
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endif
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#else
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call a%psb_d_hll_sparse_mat%spmm(alpha,x,beta,y,info,trans)
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#endif
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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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end subroutine psb_d_cuda_hlg_csmv
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