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Initial file for halo to test persistent communication, incomplete right now; just saving a version

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scr-persistent-collective
Soren Rasmussen 6 years ago
parent ad763bd364
commit 5ab1d3d64b
1 changed files with 334 additions and 0 deletions
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test/fileread/psb_halo_df_test.f90
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!
! 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 psb_df_sample
use psb_base_mod
use psb_prec_mod
use psb_krylov_mod
use psb_util_mod
use getp
implicit none
! input parameters
character(len=40) :: kmethd, ptype, mtrx_file, rhs_file,renum
! sparse matrices
type(psb_dspmat_type) :: a, aux_a
! preconditioner data
type(psb_dprec_type) :: prec
! dense matrices
real(psb_dpk_), allocatable, target :: aux_b(:,:), d(:)
real(psb_dpk_), allocatable , save :: x_col_glob(:), r_col_glob(:)
real(psb_dpk_), pointer :: b_col_glob(:)
type(psb_d_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,&
& methd, istopc, irst
integer(psb_epk_) :: amatsize, precsize, descsize
real(psb_dpk_) :: err, eps, cond
character(len=5) :: afmt
character(len=20) :: name, part
character(len=2) :: filefmt
integer(psb_ipk_), parameter :: iunit=12
integer(psb_ipk_) :: iparm(20)
! other variables
integer(psb_ipk_) :: i,info,j,m_problem, err_act
integer(psb_ipk_) :: internal, m,ii,nnzero
real(psb_dpk_) :: t1, t2, tprec
real(psb_dpk_) :: r_amax, b_amax, scale,resmx,resmxp
integer(psb_ipk_) :: nrhs, nrow, n_row, dim, ne, nv
integer(psb_ipk_), allocatable :: ivg(:), perm(:)
integer(psb_ipk_), allocatable :: ipv(:)
character(len=40) :: fname, fnout
! persistant communication
integer(psb_ipk_), allocatable :: iv(:), xa(:)
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='psb_df_sample'
if(psb_errstatus_fatal()) goto 9999
info=psb_success_
call psb_set_errverbosity(itwo)
!
! Hello world
!
if (iam == psb_root_) then
write(*,*) 'Welcome to PSBLAS version: ',psb_version_string_
write(*,*) 'This is the ',trim(name),' sample program'
end if
!
! get parameters
!
call get_parms(ictxt,mtrx_file,rhs_file,filefmt,kmethd,ptype,&
& part,afmt,istopc,itmax,itrace,irst,eps)
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)
call psb_mat_renum(psb_mat_renum_identity_,aux_a,info,perm)
! At this point aux_b may still be unallocated
if (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)
call psb_gelp('N',perm(1:m_problem),&
& b_col_glob(1:m_problem),info)
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) = done
enddo
endif
else
call psb_bcast(ictxt,m_problem)
end if
! switch over different partition types
select case(psb_toupper(part))
case('BLOCK')
if (iam == psb_root_) write(psb_out_unit,'("Partition type: block")')
call psb_matdist(aux_a, a, ictxt,desc_a,info,fmt=afmt,parts=part_block)
case('GRAPH')
if (iam == psb_root_) then
write(psb_out_unit,'("Partition type: graph vector")')
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)
case default
if (iam == psb_root_) write(psb_out_unit,'("Partition type: block")')
call psb_matdist(aux_a, a, ictxt,desc_a,info,fmt=afmt,parts=part_block)
end select
call psb_scatter(b_col_glob,b_col,desc_a,info,root=psb_root_)
call psb_geall(x_col,desc_a,info)
call x_col%zero() ! change to mpi rank? Artless
!
nrow=desc_a%get_local_rows()
ncol=desc_a%get_local_cols()
iv = [ (i,i=1,ncol)]
call loc_to_glob(iv,desc_a,info) ! call desc_a%loc_to_glob(iv,info)
xa(1:nrow) = iv(1:nrow)
xa(nrow+1:ncol) = 0.0
call x_col%set(xa)
call psb_halo(x_col,desc_a,info)
ha = x_col%get_vect() ! ha = x_col%get_vect()
do i=nrow+1,ncol
if (ha(i) /= iv(i)) then
write(0,*) 'Mismatch ',i,ha(i),iv(i)
end if
end do
!
call psb_geasb(x_col,desc_a,info)
call psb_geall(r_col,desc_a,info)
call r_col%zero()
call psb_geasb(r_col,desc_a,info)
t2 = psb_wtime() - t1
! call psb_halo
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 prec%init(ictxt,ptype,info)
! building the preconditioner
t1 = psb_wtime()
call prec%build(a,desc_a,info)
tprec = psb_wtime()-t1
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='psb_precbld')
goto 9999
end if
call psb_amx(ictxt,tprec)
if(iam == psb_root_) then
write(psb_out_unit,'("Preconditioner time: ",es12.5)')tprec
write(psb_out_unit,'(" ")')
end if
cond = dzero
iparm = 0
call psb_barrier(ictxt)
t1 = psb_wtime()
call psb_krylov(kmethd,a,prec,b_col,x_col,eps,desc_a,info,&
& itmax=itmax,iter=iter,err=err,itrace=itrace,&
& istop=istopc,irst=irst,cond=cond)
call psb_barrier(ictxt)
t2 = psb_wtime() - t1
call psb_amx(ictxt,t2)
call psb_geaxpby(done,b_col,dzero,r_col,desc_a,info)
call psb_spmm(-done,a,x_col,done,r_col,desc_a,info)
resmx = psb_genrm2(r_col,desc_a,info)
resmxp = psb_geamax(r_col,desc_a,info)
amatsize = a%sizeof()
descsize = desc_a%sizeof()
precsize = prec%sizeof()
call psb_sum(ictxt,amatsize)
call psb_sum(ictxt,descsize)
call psb_sum(ictxt,precsize)
if (iam == psb_root_) then
call prec%descr()
write(psb_out_unit,'("Matrix: ",a)')mtrx_file
write(psb_out_unit,'("Computed solution on ",i8," processors")')np
write(psb_out_unit,'("Iterations to convergence: ",i6)')iter
write(psb_out_unit,'("Error estimate on exit : ",es12.5)') err
write(psb_out_unit,'("Time to buil prec. : ",es12.5)')tprec
write(psb_out_unit,'("Time to solve system : ",es12.5)')t2
write(psb_out_unit,'("Time per iteration : ",es12.5)')t2/(iter)
write(psb_out_unit,'("Total time : ",es12.5)')t2+tprec
write(psb_out_unit,'("Residual norm 2 : ",es12.5)')resmx
write(psb_out_unit,'("Residual norm inf : ",es12.5)')resmxp
write(psb_out_unit,'("Condition number : ",es12.5)')cond
write(psb_out_unit,'("Total memory occupation for A: ",i12)')amatsize
write(psb_out_unit,'("Total memory occupation for PREC: ",i12)')precsize
write(psb_out_unit,'("Total memory occupation for DESC_A: ",i12)')descsize
write(psb_out_unit,'("Storage format for A : ",a)')&
& a%get_fmt()
write(psb_out_unit,'("Storage format for DESC_A : ",a)')&
& desc_a%get_fmt()
end if
call psb_gather(x_col_glob,x_col,desc_a,info,root=psb_root_)
if (info == psb_success_) &
& call psb_gather(r_col_glob,r_col,desc_a,info,root=psb_root_)
if (info /= psb_success_) goto 9999
if (iam == psb_root_) then
write(psb_err_unit,'(" ")')
write(psb_err_unit,'("Saving x on file")')
write(20,*) 'matrix: ',mtrx_file
write(20,*) 'computed solution on ',np,' processors.'
write(20,*) 'iterations to convergence: ',iter
write(20,*) 'error estimate (infinity norm) on exit:', &
& ' ||r||/(||a||||x||+||b||) = ',err
write(20,'("Residual norm 2 : ",es12.5)')resmx
write(20,'("Residual norm inf : ",es12.5)')resmxp
write(20,'(a8,4(2x,a20))') 'I','X(I)','R(I)','B(I)'
do i=1,m_problem
write(20,998) i,x_col_glob(i),r_col_glob(i),b_col_glob(i)
enddo
end if
998 format(i8,4(2x,g20.14))
993 format(i6,4(1x,e12.6))
call psb_gefree(b_col, desc_a,info)
call psb_gefree(x_col, desc_a,info)
call psb_spfree(a, desc_a,info)
call prec%free(info)
call psb_cdfree(desc_a,info)
call psb_exit(ictxt)
stop
9999 call psb_error(ictxt)
stop
end program psb_df_sample
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