! ! Parallel Sparse BLAS version 3.5 ! (C) Copyright 2006, 2010, 2015, 2017 ! Salvatore Filippone Cranfield University ! 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. ! ! program s_file_spmv use psb_base_mod use psb_util_mod implicit none ! input parameters character(len=40) :: kmethd, ptype, mtrx_file, rhs_file ! sparse matrices type(psb_sspmat_type) :: a, aux_a ! dense matrices real(psb_spk_), allocatable, target :: aux_b(:,:), d(:) real(psb_spk_), allocatable , save :: x_col_glob(:), r_col_glob(:) real(psb_spk_), pointer :: b_col_glob(:) type(psb_s_vect_type) :: b_col, x_col, r_col ! communications data structure type(psb_desc_type):: desc_a integer(psb_ipk_) :: ictxt, iam, np ! solver paramters integer(psb_ipk_) :: iter, itmax, ierr, itrace, ircode, ipart,& & methd, istopc, irst, nr integer(psb_long_int_k_) :: amatsize, descsize, annz, nbytes real(psb_spk_) :: err, eps,cond character(len=5) :: afmt character(len=20) :: name character(len=2) :: filefmt integer(psb_ipk_), parameter :: iunit=12 integer(psb_ipk_), parameter :: times=20 integer(psb_ipk_) :: iparm(20) ! other variables integer(psb_ipk_) :: i,info,j,m_problem integer(psb_ipk_) :: internal, m,ii,nnzero real(psb_dpk_) :: t1, t2, r_amax, b_amax,& &scale,resmx,resmxp, flops, bdwdth real(psb_dpk_) :: tt1, tt2, tflops integer(psb_ipk_) :: nrhs, nrow, n_row, dim, nv, ne integer(psb_ipk_), allocatable :: ivg(:), ipv(:) call psb_init(ictxt) call psb_info(ictxt,iam,np) if (iam < 0) then ! This should not happen, but just in case call psb_exit(ictxt) stop endif name='s_file_spmv' if(psb_get_errstatus() /= 0) goto 9999 info=psb_success_ call psb_set_errverbosity(2) ! ! Hello world ! if (iam == psb_root_) then write(*,*) 'Welcome to PSBLAS version: ',psb_version_string_ write(*,*) 'This is the ',trim(name),' sample program' read(psb_inp_unit,*) mtrx_file read(psb_inp_unit,*) filefmt read(psb_inp_unit,*) ipart end if call psb_bcast(ictxt,mtrx_file) call psb_bcast(ictxt,filefmt) call psb_bcast(ictxt,ipart) rhs_file = 'NONE' afmt = 'CSR' call psb_barrier(ictxt) t1 = psb_wtime() ! read the input matrix to be processed and (possibly) the rhs nrhs = 1 if (iam==psb_root_) then select case(psb_toupper(filefmt)) case('MM') ! For Matrix Market we have an input file for the matrix ! and an (optional) second file for the RHS. call mm_mat_read(aux_a,info,iunit=iunit,filename=mtrx_file) if (info == psb_success_) then if (rhs_file /= 'NONE') then call mm_array_read(aux_b,info,iunit=iunit,filename=rhs_file) end if end if case ('HB') ! For Harwell-Boeing we have a single file which may or may not ! contain an RHS. call hb_read(aux_a,info,iunit=iunit,b=aux_b,filename=mtrx_file) case default info = -1 write(psb_err_unit,*) 'Wrong choice for fileformat ', filefmt end select if (info /= psb_success_) then write(psb_err_unit,*) 'Error while reading input matrix ' call psb_abort(ictxt) end if m_problem = aux_a%get_nrows() call psb_bcast(ictxt,m_problem) ! At this point aux_b may still be unallocated if (psb_size(aux_b,dim=1)==m_problem) then ! if any rhs were present, broadcast the first one write(psb_err_unit,'("Ok, got an rhs ")') b_col_glob =>aux_b(:,1) else write(psb_out_unit,'("Generating an rhs...")') write(psb_out_unit,'(" ")') call psb_realloc(m_problem,1,aux_b,ircode) if (ircode /= 0) then call psb_errpush(psb_err_alloc_dealloc_,name) goto 9999 endif b_col_glob => aux_b(:,1) do i=1, m_problem b_col_glob(i) = 1.d0 enddo endif else call psb_bcast(ictxt,m_problem) b_col_glob =>aux_b(:,1) end if ! switch over different partition types write(psb_out_unit,'("Number of processors : ",i0)')np if (ipart == 0) then call psb_barrier(ictxt) if (iam==psb_root_) write(psb_out_unit,'("Partition type: block")') allocate(ivg(m_problem),ipv(np)) do i=1,m_problem call part_block(i,m_problem,np,ipv,nv) ivg(i) = ipv(1) enddo call psb_matdist(aux_a, a, ictxt,desc_a,info,fmt=afmt,v=ivg) else if (ipart == 2) then if (iam==psb_root_) then write(psb_out_unit,'("Partition type: graph")') write(psb_out_unit,'(" ")') ! write(psb_err_unit,'("Build type: graph")') call build_mtpart(aux_a,np) endif call psb_barrier(ictxt) call distr_mtpart(psb_root_,ictxt) call getv_mtpart(ivg) call psb_matdist(aux_a, a, ictxt, desc_a,info,fmt=afmt,v=ivg) else if (iam==psb_root_) write(psb_out_unit,'("Partition type: default block")') call psb_matdist(aux_a, a, ictxt, desc_a,info,fmt=afmt,parts=part_block) end if call psb_geall(x_col,desc_a,info) call x_col%set(sone) call psb_geasb(x_col,desc_a,info) call psb_geall(b_col,desc_a,info) call x_col%zero() call psb_geasb(b_col,desc_a,info) t2 = psb_wtime() - t1 call psb_amx(ictxt, t2) if (iam==psb_root_) then write(psb_out_unit,'(" ")') write(psb_out_unit,'("Time to read and partition matrix : ",es12.5)')t2 write(psb_out_unit,'(" ")') end if call psb_barrier(ictxt) t1 = psb_wtime() do i=1,times call psb_spmm(sone,a,x_col,szero,b_col,desc_a,info,'n') end do call psb_barrier(ictxt) t2 = psb_wtime() - t1 call psb_amx(ictxt,t2) ! FIXME: cache flush needed here call psb_barrier(ictxt) tt1 = psb_wtime() do i=1,times call psb_spmm(sone,a,x_col,szero,b_col,desc_a,info,'t') end do call psb_barrier(ictxt) tt2 = psb_wtime() - tt1 call psb_amx(ictxt,tt2) nr = desc_a%get_global_rows() annz = a%get_nzeros() amatsize = psb_sizeof(a) descsize = psb_sizeof(desc_a) call psb_sum(ictxt,annz) call psb_sum(ictxt,amatsize) call psb_sum(ictxt,descsize) if (iam==psb_root_) then flops = 2.d0*times*annz tflops=flops write(psb_out_unit,'("Matrix: ",a)') mtrx_file write(psb_out_unit,'("Test on : ",i20," processors")') np write(psb_out_unit,'("Size of matrix : ",i20," ")') nr write(psb_out_unit,'("Number of nonzeros : ",i20," ")') annz write(psb_out_unit,'("Memory occupation : ",i20," ")') amatsize write(psb_out_unit,'("Number of flops (",i0," prod) : ",F20.0," ")') times,flops flops = flops / (t2) tflops = tflops / (tt2) write(psb_out_unit,'("Time for ",i0," products (s) : ",F20.3)')times, t2 write(psb_out_unit,'("Time per product (ms) : ",F20.3)') t2*1.d3/(1.d0*times) write(psb_out_unit,'("MFLOPS : ",F20.3)') flops/1.d6 write(psb_out_unit,'("Time for ",i0," products (s) (trans.): ",F20.3)') times,tt2 write(psb_out_unit,'("Time per product (ms) (trans.): ",F20.3)') tt2*1.d3/(1.d0*times) write(psb_out_unit,'("MFLOPS (trans.): ",F20.3)') tflops/1.d6 ! ! This computation is valid for CSR ! nbytes = nr*(2*psb_sizeof_sp + psb_sizeof_int)+ & & annz*(psb_sizeof_sp + psb_sizeof_int) bdwdth = times*nbytes/(t2*1.d6) write(psb_out_unit,*) write(psb_out_unit,'("MBYTES/S : ",F20.3)') bdwdth bdwdth = times*nbytes/(tt2*1.d6) write(psb_out_unit,'("MBYTES/S (trans): ",F20.3)') bdwdth end if call psb_gefree(b_col, desc_a,info) call psb_gefree(x_col, desc_a,info) call psb_spfree(a, desc_a,info) call psb_cdfree(desc_a,info) call psb_exit(ictxt) stop 9999 call psb_error(ictxt) stop end program s_file_spmv