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psblas3/test/kernel/s_file_spmv.f90

294 lines
9.2 KiB
Fortran

!
! Parallel Sparse BLAS version 3.5
! (C) Copyright 2006-2018
! Salvatore Filippone
! Alfredo Buttari
!
! 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
type(psb_ctxt_type) :: ctxt
integer(psb_ipk_) :: iam, np
! solver paramters
integer(psb_ipk_) :: iter, itmax, ierr, itrace, ircode, ipart,&
& methd, istopc, irst, nr
integer(psb_epk_) :: 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_lpk_) :: i,j,m_problem
integer(psb_ipk_) :: internal, m,ii,nnzero,info
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(ctxt)
call psb_info(ctxt,iam,np)
if (iam < 0) then
! This should not happen, but just in case
call psb_exit(ctxt)
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(ctxt,mtrx_file)
call psb_bcast(ctxt,filefmt)
call psb_bcast(ctxt,ipart)
rhs_file = 'NONE'
afmt = 'CSR'
call psb_barrier(ctxt)
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(ctxt)
end if
m_problem = aux_a%get_nrows()
call psb_bcast(ctxt,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(ctxt,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(ctxt)
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, ctxt,desc_a,info,fmt=afmt,vg=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(ctxt)
call distr_mtpart(psb_root_,ctxt)
call getv_mtpart(ivg)
call psb_matdist(aux_a, a, ctxt, desc_a,info,fmt=afmt,vg=ivg)
else
if (iam==psb_root_) write(psb_out_unit,'("Partition type: default block")')
call psb_matdist(aux_a, a, ctxt, 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(ctxt, 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(ctxt)
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(ctxt)
t2 = psb_wtime() - t1
call psb_amx(ctxt,t2)
! FIXME: cache flush needed here
call psb_barrier(ctxt)
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(ctxt)
tt2 = psb_wtime() - tt1
call psb_amx(ctxt,tt2)
nr = desc_a%get_global_rows()
annz = a%get_nzeros()
amatsize = psb_sizeof(a)
descsize = psb_sizeof(desc_a)
call psb_sum(ctxt,annz)
call psb_sum(ctxt,amatsize)
call psb_sum(ctxt,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_ip)+ &
& annz*(psb_sizeof_sp + psb_sizeof_ip)
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(ctxt)
stop
9999 call psb_error(ctxt)
stop
end program s_file_spmv