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This commit is contained in:
Alfredo Buttari
2005-10-10 15:39:42 +00:00
parent aedef1ef01
commit 9ad5ffe8a6
8 changed files with 74 additions and 57 deletions
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test/Fileread/df_sample.f90
+48 -31
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@@ -59,7 +59,7 @@ program df_sample
! solver paramters
integer :: iter, itmax, ierr, itrace, ircode, ipart,&
& methd, istopc, ml, iprec, novr
& methd, istopc, ml, iprec, novr, igsmth, matop
character(len=5) :: afmt
character(len=20) :: name
@@ -85,6 +85,8 @@ program df_sample
name='df_sample'
info=0
call psb_set_errverbosity(2)
call psb_set_erraction(0)
!
! get parameters
!
@@ -114,7 +116,8 @@ program df_sample
write(0,'("Ok, got an rhs ")')
b_col_glob =>aux_b(:,1)
else
write(0,'("Generating an rhs ")')
write(*,'("Generating an rhs...")')
write(*,'(" ")')
allocate(aux_b(m_problem,1), stat=ircode)
if (ircode /= 0) then
call psb_errpush(4000,name)
@@ -141,7 +144,7 @@ program df_sample
! switch over different partition types
if (ipart.eq.0) then
call blacs_barrier(ictxt,'a')
write(6,'("Partition type: block")')
if (amroot) write(*,'("Partition type: block")')
allocate(ivg(m_problem),ipv(np))
do i=1,m_problem
call part_block(i,m_problem,np,ipv,nv)
@@ -151,7 +154,7 @@ program df_sample
& desc_a,b_col_glob,b_col,info,fmt=afmt)
else if (ipart.eq.1) then
call blacs_barrier(ictxt,'a')
write(6,'("Partition type: blk2")')
if (amroot) write(*,'("Partition type: blk2")')
allocate(ivg(m_problem),ipv(np))
do i=1,m_problem
call part_blk2(i,m_problem,np,ipv,nv)
@@ -160,9 +163,10 @@ program df_sample
call matdist(aux_a, a, ivg, ictxt, &
& desc_a,b_col_glob,b_col,info,fmt=afmt)
else if (ipart.eq.2) then
write(6,'("Partition type: graph")')
if (amroot) then
write(0,'("Build type: graph")')
write(*,'("Partition type: graph")')
write(*,'(" ")')
! write(0,'("Build type: graph")')
call build_grppart(aux_a%m,aux_a%fida,aux_a%ia1,aux_a%ia2,np)
endif
call blacs_barrier(ictxt,'a')
@@ -171,7 +175,7 @@ program df_sample
call matdist(aux_a, a, ivg, ictxt, &
& desc_a,b_col_glob,b_col,info,fmt=afmt)
else
write(6,'("Partition type: block")')
if (amroot) write(*,'("Partition type: block")')
call matdist(aux_a, a, part_block, ictxt, &
& desc_a,b_col_glob,b_col,info,fmt=afmt)
end if
@@ -189,7 +193,9 @@ program df_sample
& t1, t1, -1, -1, -1)
if (amroot) then
write(6,'("Time to read and partition matrix : ",es10.4)')t2
write(*,'(" ")')
write(*,'("Time to read and partition matrix : ",es10.4)')t2
write(*,'(" ")')
end if
!
@@ -197,9 +203,11 @@ program df_sample
! of optional parameters
!
if (amroot) write(6,'("Preconditioner : ",a)')prec(1:6)
if (amroot) write(*,'("Preconditioner : ",a)')prec(1:6)
! zero initial guess.
matop=1
igsmth=-1
select case(iprec)
case(noprec_)
call psb_precset(pre,'noprec')
@@ -215,23 +223,36 @@ program df_sample
call psb_precset(pre,'asm',iv=(/novr,halo_,none_/))
case(rash_)
call psb_precset(pre,'asm',iv=(/novr,nohalo_,none_/))
case(ras2lv_)
call psb_precset(pre,'asm',iv=(/novr,halo_,none_/))
call psb_precset(pre,'ml',&
&iv=(/add_ml_prec_,loc_aggr_,no_smth_,mat_repl_,&
& pre_smooth_,igsmth/),rs=0.d0)
!!$ call psb_precset(pre,'ml',&
!!$ &iv=(/add_ml_prec_,glb_aggr_,pre_smooth_,igsmth,matop/),rs=0.d0)
case(ras2lvm_)
call psb_precset(pre,'asm',iv=(/novr,halo_,none_/))
call psb_precset(pre,'ml',&
& iv=(/mult_ml_prec_,glb_aggr_,pre_smooth_,igsmth,matop/),rs=0.d0)
end select
! building the preconditioner
t1 = mpi_wtime()
call psb_precbld(a,pre,desc_a,info)
tprec = mpi_wtime()-t1
if (info /= 0) then
call psb_errpush(4010,name,a_err='psb_precbld')
goto 9999
end if
call dgamx2d(ictxt,'a',' ',ione, ione,tprec,ione,t1,t1,-1,-1,-1)
write(6,'("Preconditioner time: ",es10.4)')tprec
if (info /= 0) then
write(0,*) 'error in preconditioner :',info
call blacs_abort(ictxt,-1)
stop
if(amroot) then
write(*,'("Preconditioner time: ",es10.4)')tprec
write(*,'(" ")')
end if
iparm = 0
call blacs_barrier(ictxt,'all')
t1 = mpi_wtime()
@@ -250,31 +271,26 @@ program df_sample
endif
call blacs_barrier(ictxt,'all')
t2 = mpi_wtime() - t1
write(0,*)'Calling gamx2d'
call dgamx2d(ictxt,'a',' ',ione, ione,t2,ione,t1,t1,-1,-1,-1)
write(0,*)'Calling axpby'
call psb_axpby(1.d0,b_col,0.d0,r_col,desc_a,info)
write(0,*)'Calling spmm'
call psb_spmm(-1.d0,a,x_col,1.d0,r_col,desc_a,info)
write(0,*)'Calling nrm2'
call psb_nrm2(resmx,r_col,desc_a,info)
write(0,*)'Calling amax'
call psb_amax(resmxp,r_col,desc_a,info)
!!$ iter=iparm(5)
!!$ err = rparm(2)
if (amroot) then
! call psb_prec_descr(6,pre)
write(6,'("Matrix: ",a)')mtrx_file
write(6,'("Computed solution on ",i4," processors")')nprow
write(6,'("Iterations to convergence: ",i)')iter
write(6,'("Error indicator on exit: ",f7.2)')err
write(6,'("Time to buil prec. : ",es10.4)')tprec
write(6,'("Time to solve matrix : ",es10.4)')t2
write(6,'("Time per iteration : ",es10.4)')t2/(iter)
write(6,'("Total time : ",es10.4)')t2+tprec
write(6,'("Residual norm 2 = ",f7.2)')resmx
write(6,'("Residual norm inf = ",f7.2)')resmxp
write(*,'("Matrix: ",a)')mtrx_file
write(*,'("Computed solution on ",i4," processors")')nprow
write(*,'("Iterations to convergence: ",i)')iter
write(*,'("Error indicator on exit: ",f7.2)')err
write(*,'("Time to buil prec. : ",es10.4)')tprec
write(*,'("Time to solve matrix : ",es10.4)')t2
write(*,'("Time per iteration : ",es10.4)')t2/(iter)
write(*,'("Total time : ",es10.4)')t2+tprec
write(*,'("Residual norm 2 = ",es10.4)')resmx
write(*,'("Residual norm inf = ",es10.4)')resmxp
end if
allocate(x_col_glob(m_problem),r_col_glob(m_problem),stat=ierr)
@@ -284,7 +300,8 @@ program df_sample
call psb_gather(x_col_glob,x_col,desc_a,info,iroot=0)
call psb_gather(r_col_glob,r_col,desc_a,info,iroot=0)
if (amroot) then
write(0,*) 'Saving x on file'
write(0,'(" ")')
write(0,'("Saving x on file")')
write(20,*) 'matrix: ',mtrx_file
write(20,*) 'computed solution on ',nprow,' processors.'
write(20,*) 'iterations to convergence: ',iter