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497 lines
15 KiB
Fortran
497 lines
15 KiB
Fortran
!
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! Parallel Sparse BLAS GPU plugin
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! (C) Copyright 2013
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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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!
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program s_file_spmv
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use psb_base_mod
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use psb_util_mod
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use psb_ext_mod
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#ifdef HAVE_GPU
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use psb_gpu_mod
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#endif
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use data_input
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implicit none
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! input parameters
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character(len=200) :: mtrx_file
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! sparse matrices
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type(psb_sspmat_type) :: a, aux_a, agpu
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! dense matrices
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real(psb_spk_), allocatable, target :: aux_b(:,:), d(:)
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real(psb_spk_), allocatable , save :: x_col_glob(:), r_col_glob(:)
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real(psb_spk_), pointer :: b_col_glob(:)
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type(psb_s_vect_type) :: b_col, x_col, r_col
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type(psb_s_vect_type) :: xg, bg, xv, bv
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#ifdef HAVE_GPU
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type(psb_s_vect_gpu) :: vmold
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#endif
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real(psb_spk_), allocatable :: xc1(:),xc2(:)
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! communications data structure
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type(psb_desc_type):: desc_a
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type(psb_ctxt_type) :: ctxt
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integer :: iam, np
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integer(psb_epk_) :: amatsize, agmatsize, precsize, descsize, annz, nbytes
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real(psb_spk_) :: err, eps, samatsize, sgmatsize
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character(len=5) :: acfmt, agfmt
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character(len=20) :: name
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character(len=2) :: filefmt
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integer, parameter :: iunit=12
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integer, parameter :: times=2000
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integer, parameter :: ntests=200, ngpu=50, ncnv=20
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type(psb_s_coo_sparse_mat), target :: acoo
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type(psb_s_csr_sparse_mat), target :: acsr
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type(psb_s_ell_sparse_mat), target :: aell
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type(psb_s_hll_sparse_mat), target :: ahll
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type(psb_s_hdia_sparse_mat), target :: ahdia
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#ifdef HAVE_GPU
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type(psb_s_elg_sparse_mat), target :: aelg
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type(psb_s_csrg_sparse_mat), target :: acsrg
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type(psb_s_hybg_sparse_mat), target :: ahybg
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type(psb_s_hlg_sparse_mat), target :: ahlg
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type(psb_s_hdiag_sparse_mat), target :: ahdiag
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#endif
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class(psb_s_base_sparse_mat), pointer :: acmold, agmold
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! other variables
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integer :: i,info,j,nrt, ns, nr, ipart, ig, nrg
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integer :: internal, m,ii,nnzero
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real(psb_dpk_) :: t0,t1, t2, tprec, flops
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real(psb_dpk_) :: tt1, tt2, tflops, gt1, gt2,gflops, gtint, bdwdth,&
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& tcnvcsr, tcnvc1, tcnvgpu, tcnvg1
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integer :: nrhs, nrow, n_row, dim, nv, ne
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integer, allocatable :: ivg(:), ipv(:)
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call psb_init(ctxt)
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call psb_info(ctxt,iam,np)
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#ifdef HAVE_GPU
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call psb_gpu_init(ctxt)
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#endif
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if (iam < 0) then
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! This should not happen, but just in case
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call psb_exit(ctxt)
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stop
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endif
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name='file_spmv'
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if(psb_get_errstatus() /= 0) goto 9999
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info=psb_success_
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call psb_set_errverbosity(2)
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if (iam == psb_root_) then
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write(*,*) 'Welcome to PSBLAS version: ',psb_version_string_
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write(*,*) 'This is the ',trim(name),' sample program'
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end if
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#ifdef HAVE_GPU
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write(*,*) 'Process ',iam,' running on device: ', psb_cuda_getDevice(),' out of', psb_cuda_getDeviceCount()
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write(*,*) 'Process ',iam,' device ', psb_cuda_getDevice(),' is a: ', trim(psb_gpu_DeviceName())
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#endif
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if (iam == 0) then
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write(*,*) 'Matrix? '
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call read_data(mtrx_file,psb_inp_unit)
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write(*,*) 'file format'
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call read_data(filefmt,psb_inp_unit)
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write(*,*) 'CPU format'
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call read_data(acfmt,psb_inp_unit)
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write(*,*) 'GPU format'
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call read_data(agfmt,psb_inp_unit)
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write(*,*) 'distribution '
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call read_data(ipart,psb_inp_unit)
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write(*,*) 'Read all data, going on'
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end if
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call psb_bcast(ctxt,mtrx_file)
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call psb_bcast(ctxt,filefmt)
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call psb_bcast(ctxt,acfmt)
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call psb_bcast(ctxt,agfmt)
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call psb_bcast(ctxt,ipart)
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call psb_barrier(ctxt)
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t0 = psb_wtime()
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! read the input matrix to be processed and (possibly) the rhs
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nrhs = 1
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if (iam==psb_root_) then
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select case(psb_toupper(filefmt))
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case('MM')
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! For Matrix Market we have an input file for the matrix
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! and an (optional) second file for the RHS.
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call mm_mat_read(aux_a,info,iunit=iunit,filename=mtrx_file)
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case ('HB')
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! For Harwell-Boeing we have a single file which may or may not
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! contain an RHS.
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call hb_read(aux_a,info,iunit=iunit,filename=mtrx_file)
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case default
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info = -1
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write(psb_err_unit,*) 'Wrong choice for fileformat ', filefmt
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end select
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if (info /= 0) then
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write(psb_err_unit,*) 'Error while reading input matrix '
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call psb_abort(ctxt)
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end if
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!
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! Always get nnz from original matrix.
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! Some formats add fill-in and do not keep track
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! of how many were added. So if the original matrix
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! contained some extra zeros, the count of entries
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! is not recoverable exactly.
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!
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nrt = aux_a%get_nrows()
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annz = aux_a%get_nzeros()
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call psb_bcast(ctxt,annz)
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call psb_bcast(ctxt,nrt)
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write(psb_out_unit,'("Generating an rhs...")')
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write(psb_out_unit,'(" ")')
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call psb_realloc(nrt,1,aux_b,info)
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if (info /= 0) then
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call psb_errpush(4000,name)
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goto 9999
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endif
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b_col_glob => aux_b(:,1)
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do i=1, nrt
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b_col_glob(i) = 1.d0
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enddo
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else
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call psb_bcast(ctxt,annz)
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call psb_bcast(ctxt,nrt)
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end if
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select case(psb_toupper(acfmt))
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case('COO')
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acmold => acoo
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case('CSR')
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acmold => acsr
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case('ELL')
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acmold => aell
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case('HLL')
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acmold => ahll
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case('HDIA')
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acmold => ahdia
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case default
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write(*,*) 'Unknown format defaulting to CSR'
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acmold => acsr
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end select
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#ifdef HAVE_GPU
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select case(psb_toupper(agfmt))
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case('ELG')
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agmold => aelg
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case('HLG')
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agmold => ahlg
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case('CSRG')
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agmold => acsrg
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case('HYBG')
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agmold => ahybg
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case('HDIAG')
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agmold => ahdiag
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case default
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write(*,*) 'Unknown format defaulting to HLG'
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agmold => ahlg
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end select
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#endif
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! switch over different partition types
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if (ipart == 0) then
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call psb_barrier(ctxt)
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if (iam==psb_root_) write(psb_out_unit,'("Partition type: block")')
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allocate(ivg(nrt),ipv(np))
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do i=1,nrt
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call part_block(i,nrt,np,ipv,nv)
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ivg(i) = ipv(1)
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enddo
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call psb_matdist(aux_a, a, ctxt, desc_a,info,v=ivg)
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else if (ipart == 2) then
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if (iam==psb_root_) then
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write(psb_out_unit,'("Partition type: graph")')
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write(psb_out_unit,'(" ")')
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! write(psb_err_unit,'("Build type: graph")')
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call build_mtpart(aux_a,np)
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endif
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call psb_barrier(ctxt)
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call distr_mtpart(psb_root_,ctxt)
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call getv_mtpart(ivg)
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call psb_matdist(aux_a, a, ctxt, desc_a,info,v=ivg)
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else
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if (iam==psb_root_) write(psb_out_unit,'("Partition type default: block")')
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call psb_matdist(aux_a, a, ctxt,desc_a,info,parts=part_block)
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end if
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call psb_scatter(b_col_glob,bv,desc_a,info,root=psb_root_)
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t2 = psb_wtime() - t0
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call psb_amx(ctxt, t2)
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if (iam==psb_root_) then
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write(psb_out_unit,'(" ")')
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write(psb_out_unit,'("Time to read and partition matrix : ",es12.5)')t2
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write(psb_out_unit,'(" ")')
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end if
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call a%cscnv(aux_a,info,mold=acoo)
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tcnvcsr = 0
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tcnvgpu = 0
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nr = desc_a%get_local_rows()
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nrg = desc_a%get_global_rows()
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call psb_geall(x_col,desc_a,info)
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do i=1, nr
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call desc_a%l2g(i,ig,info)
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call psb_geins(ione,(/ig/),(/(sone + (sone*ig)/nrg)/),x_col,desc_a,info)
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end do
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call psb_geasb(x_col,desc_a,info)
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do j=1, ncnv
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call aux_a%cscnv(a,info,mold=acoo)
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call psb_barrier(ctxt)
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t1 = psb_wtime()
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call a%cscnv(info,mold=acmold)
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t2 = psb_Wtime() -t1
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call psb_amx(ctxt,t2)
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tcnvcsr = tcnvcsr + t2
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if (j==1) tcnvc1 = t2
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xc1 = x_col%get_vect()
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call xv%bld(xc1)
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call psb_geasb(bv,desc_a,info,scratch=.true.)
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#ifdef HAVE_GPU
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call aux_a%cscnv(agpu,info,mold=acoo)
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call xg%bld(xc1,mold=vmold)
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call psb_geasb(bg,desc_a,info,scratch=.true.,mold=vmold)
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call psb_barrier(ctxt)
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t1 = psb_wtime()
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call agpu%cscnv(info,mold=agmold)
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call psb_gpu_DeviceSync()
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t2 = psb_Wtime() -t1
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call psb_amx(ctxt,t2)
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if (j==1) tcnvg1 = t2
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tcnvgpu = tcnvgpu + t2
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#endif
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end do
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call psb_barrier(ctxt)
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t1 = psb_wtime()
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do i=1,ntests
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call psb_spmm(sone,a,xv,szero,bv,desc_a,info)
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end do
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call psb_barrier(ctxt)
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t2 = psb_wtime() - t1
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call psb_amx(ctxt,t2)
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#ifdef HAVE_GPU
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! FIXME: cache flush needed here
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call psb_barrier(ctxt)
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tt1 = psb_wtime()
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do i=1,ntests
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call psb_spmm(sone,agpu,xv,szero,bg,desc_a,info)
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if ((info /= 0).or.(psb_get_errstatus()/=0)) then
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write(0,*) 'From 1 spmm',info,i,ntests
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call psb_error()
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stop
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end if
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end do
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call psb_gpu_DeviceSync()
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call psb_barrier(ctxt)
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tt2 = psb_wtime() - tt1
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call psb_amx(ctxt,tt2)
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xc1 = bv%get_vect()
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xc2 = bg%get_vect()
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nr = desc_a%get_local_rows()
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eps = maxval(abs(xc1(1:nr)-xc2(1:nr)))
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call psb_amx(ctxt,eps)
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if (iam==0) write(*,*) 'Max diff on xGPU',eps
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call xg%sync()
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! FIXME: cache flush needed here
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call psb_barrier(ctxt)
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gt1 = psb_wtime()
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do i=1,ntests*ngpu
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call psb_spmm(sone,agpu,xg,szero,bg,desc_a,info)
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if ((info /= 0).or.(psb_get_errstatus()/=0)) then
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write(0,*) 'From 2 spmm',info,i,ntests
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call psb_error()
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stop
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end if
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end do
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! For timing purposes we need to make sure all threads
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! in the device are done.
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call psb_gpu_DeviceSync()
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call psb_barrier(ctxt)
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gt2 = psb_wtime() - gt1
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call psb_amx(ctxt,gt2)
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call bg%sync()
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xc1 = bv%get_vect()
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xc2 = bg%get_vect()
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call psb_geaxpby(-sone,bg,+sone,bv,desc_a,info)
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eps = psb_geamax(bv,desc_a,info)
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call psb_amx(ctxt,t2)
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nr = desc_a%get_local_rows()
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eps = maxval(abs(xc1(1:nr)-xc2(1:nr)))
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call psb_amx(ctxt,eps)
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if (iam==0) write(*,*) 'Max diff on GPU',eps
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#endif
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amatsize = a%sizeof()
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agmatsize = agpu%sizeof()
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samatsize = amatsize
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samatsize = samatsize/(1024*1024)
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sgmatsize = agmatsize
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sgmatsize = sgmatsize/(1024*1024)
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descsize = psb_sizeof(desc_a)
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call psb_sum(ctxt,samatsize)
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call psb_sum(ctxt,sgmatsize)
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call psb_sum(ctxt,descsize)
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if (iam == psb_root_) then
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write(psb_out_unit,'("Matrix: ",a)') mtrx_file
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write(psb_out_unit,&
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&'("Test on : ",i20," processors")') np
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write(psb_out_unit,&
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&'("Size of matrix : ",i20," ")') nrt
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write(psb_out_unit,&
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&'("Number of nonzeros : ",i20," ")') annz
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write(psb_out_unit,&
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&'("Memory occupation CPU (MBytes) : ",f20.2," ")') samatsize
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write(psb_out_unit,&
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&'("Memory occupation GPU (MBytes) : ",f20.2," ")') sgmatsize
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write(psb_out_unit,&
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&'("Memory occupation CPU (Bytes) : ",i24," ")') amatsize
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write(psb_out_unit,&
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&'("Memory occupation GPU (Bytes) : ",i24," ")') agmatsize
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flops = ntests*(2.d0*annz)
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tflops = flops
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gflops = flops * ngpu
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write(psb_out_unit,'("Storage type for A: ",a)') a%get_fmt()
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#ifdef HAVE_GPU
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write(psb_out_unit,'("Storage type for AGPU: ",a)') agpu%get_fmt()
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write(psb_out_unit,'("Time to convert A from COO to CPU (1): ",F20.9)')&
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& tcnvc1
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write(psb_out_unit,'("Time to convert A from COO to CPU (t): ",F20.9)')&
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& tcnvcsr
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write(psb_out_unit,'("Time to convert A from COO to CPU (a): ",F20.9)')&
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& tcnvcsr/ncnv
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write(psb_out_unit,'("Time to convert A from COO to GPU (1): ",F20.9)')&
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& tcnvg1
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write(psb_out_unit,'("Time to convert A from COO to GPU (t): ",F20.9)')&
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& tcnvgpu
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write(psb_out_unit,'("Time to convert A from COO to GPU (a): ",F20.9)')&
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& tcnvgpu/ncnv
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#endif
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write(psb_out_unit,&
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& '("Number of flops (",i0," prod) : ",F20.0," ")') &
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& ntests,flops
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flops = flops / (t2)
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tflops = tflops / (tt2)
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gflops = gflops / (gt2)
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write(psb_out_unit,'("Time for ",i6," products (s) (CPU) : ",F20.3)')&
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& ntests,t2
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write(psb_out_unit,'("Time per product (ms) (CPU) : ",F20.3)')&
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& t2*1.d3/(1.d0*ntests)
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write(psb_out_unit,'("MFLOPS (CPU) : ",F20.3)')&
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& flops/1.d6
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#ifdef HAVE_GPU
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write(psb_out_unit,'("Time for ",i6," products (s) (xGPU) : ",F20.3)')&
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& ntests, tt2
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write(psb_out_unit,'("Time per product (ms) (xGPU) : ",F20.3)')&
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& tt2*1.d3/(1.d0*ntests)
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write(psb_out_unit,'("MFLOPS (xGPU) : ",F20.3)')&
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& tflops/1.d6
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write(psb_out_unit,'("Time for ",i6," products (s) (GPU) : ",F20.3)')&
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& ngpu*ntests,gt2
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write(psb_out_unit,'("Time per product (ms) (GPU) : ",F20.3)')&
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& gt2*1.d3/(1.d0*ntests*ngpu)
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write(psb_out_unit,'("MFLOPS (GPU) : ",F20.3)')&
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& gflops/1.d6
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#endif
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!
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! This computation assumes the data movement associated with CSR:
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! it is minimal in terms of coefficients. Other formats may either move
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! more data (padding etc.) or less data (if they can save on the indices).
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!
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nbytes = nr*(2*psb_sizeof_sp + psb_sizeof_ip)+&
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& annz*(psb_sizeof_sp + psb_sizeof_ip)
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bdwdth = ntests*nbytes/(t2*1.d6)
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write(psb_out_unit,*)
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write(psb_out_unit,'("MBYTES/S (CPU) : ",F20.3)') bdwdth
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#ifdef HAVE_GPU
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bdwdth = ngpu*ntests*nbytes/(gt2*1.d6)
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write(psb_out_unit,'("MBYTES/S (GPU) : ",F20.3)') bdwdth
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#endif
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write(psb_out_unit,'("Storage type for DESC_A: ",a)') desc_a%indxmap%get_fmt()
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write(psb_out_unit,'("Total memory occupation for DESC_A: ",i12)')descsize
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end if
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call psb_gefree(b_col, desc_a,info)
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call psb_gefree(x_col, desc_a,info)
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call psb_gefree(xv, desc_a,info)
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call psb_gefree(bv, desc_a,info)
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call psb_spfree(a, desc_a,info)
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#ifdef HAVE_GPU
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call psb_gefree(xg, desc_a,info)
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call psb_gefree(bg, desc_a,info)
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call psb_spfree(agpu,desc_a,info)
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call psb_gpu_exit()
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#endif
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call psb_cdfree(desc_a,info)
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call psb_exit(ctxt)
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stop
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9999 continue
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call psb_error(ctxt)
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end program s_file_spmv
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