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Adjustments for POLYNOMIAL smoothers.

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sfilippone
2023-11-17 13:14:06 +01:00
parent 2dd1cbd3dc
commit ec9fcb1bcc
22 changed files with 200 additions and 81 deletions
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samples/advanced/pdegen/amg_d_pde3d.F90
+17 -9
View File
@@ -145,6 +145,7 @@ program amg_d_pde3d
character(len=16) :: smther ! (pre-)smoother type: BJAC, AS
integer(psb_ipk_) :: jsweeps ! (pre-)smoother / 1-lev prec. sweeps
integer(psb_ipk_) :: degree ! degree for polynomial smoother
character(len=16) :: pvariant ! Polynomial smoother variant
integer(psb_ipk_) :: novr ! number of overlap layers
character(len=16) :: restr ! restriction over application of AS
character(len=16) :: prol ! prolongation over application of AS
@@ -154,12 +155,13 @@ program amg_d_pde3d
character(len=16) :: variant ! AINV variant: LLK, etc
integer(psb_ipk_) :: fill ! fill-in for incomplete LU factorization
integer(psb_ipk_) :: invfill ! Inverse fill-in for INVK
real(psb_dpk_) :: thr ! threshold for ILUT factorization
real(psb_dpk_) :: thr ! threshold for ILUT factorization
! AMG post-smoother; ignored by 1-lev preconditioner
character(len=16) :: smther2 ! post-smoother type: BJAC, AS
integer(psb_ipk_) :: jsweeps2 ! post-smoother sweeps
integer(psb_ipk_) :: degree2 ! degree for polynomial smoother
character(len=16) :: pvariant2 ! Polynomial smoother variant
integer(psb_ipk_) :: novr2 ! number of overlap layers
character(len=16) :: restr2 ! restriction over application of AS
character(len=16) :: prol2 ! prolongation over application of AS
@@ -169,7 +171,7 @@ program amg_d_pde3d
character(len=16) :: variant2 ! AINV variant: LLK, etc
integer(psb_ipk_) :: fill2 ! fill-in for incomplete LU factorization
integer(psb_ipk_) :: invfill2 ! Inverse fill-in for INVK
real(psb_dpk_) :: thr2 ! threshold for ILUT factorization
real(psb_dpk_) :: thr2 ! threshold for ILUT factorization
! coarsest-level solver
character(len=16) :: cmat ! coarsest matrix layout: REPL, DIST
@@ -291,7 +293,8 @@ program amg_d_pde3d
call prec%set('smoother_sweeps', p_choice%jsweeps, info)
call prec%set('sub_solve', p_choice%solve, info)
call prec%set('solver_sweeps', p_choice%ssweeps, info)
call prec%set('smoother_degree', p_choice%degree, info)
call prec%set('poly_degree', p_choice%degree, info)
call prec%set('poly_variant', p_choice%variant, info)
if (psb_toupper(p_choice%solve)=='MUMPS') &
& call prec%set('mumps_loc_glob','local_solver',info)
call prec%set('sub_fillin', p_choice%fill, info)
@@ -339,7 +342,8 @@ program amg_d_pde3d
call prec%set('smoother_type', p_choice%smther, info)
call prec%set('smoother_sweeps', p_choice%jsweeps, info)
call prec%set('smoother_degree', p_choice%degree, info)
call prec%set('poly_degree', p_choice%degree, info)
call prec%set('poly_variant', p_choice%variant, info)
select case (psb_toupper(p_choice%smther))
case ('GS','BWGS','FBGS','JACOBI','L1-JACOBI','L1-FBGS')
@@ -370,7 +374,8 @@ program amg_d_pde3d
if (psb_toupper(p_choice%smther2) /= 'NONE') then
call prec%set('smoother_type', p_choice%smther2, info,pos='post')
call prec%set('smoother_sweeps', p_choice%jsweeps2, info,pos='post')
call prec%set('smoother_degree', p_choice%degree2, info,pos='post')
call prec%set('poly_degree', p_choice%degree2, info,pos='post')
call prec%set('poly_variant', p_choice%variant2, info,pos='post')
select case (psb_toupper(p_choice%smther2))
case ('GS','BWGS','FBGS','JACOBI','L1-JACOBI','L1-FBGS')
! do nothing
@@ -407,7 +412,6 @@ program amg_d_pde3d
call prec%set('coarse_sweeps', p_choice%cjswp, info)
end select
!!$ call prec%descr(info,iout=psb_out_unit)
! build the preconditioner
call psb_barrier(ctxt)
@@ -587,7 +591,8 @@ contains
! First smoother / 1-lev preconditioner
call read_data(prec%smther,inp_unit) ! smoother type
call read_data(prec%jsweeps,inp_unit) ! (pre-)smoother / 1-lev prec sweeps
call read_data(prec%degree,inp_unit) ! (pre-)smoother / 1-lev prec sweeps
call read_data(prec%degree,inp_unit) ! Degree of Polynomial smoother
call read_data(prec%variant,inp_unit) ! variant for Polynomial
call read_data(prec%novr,inp_unit) ! number of overlap layers
call read_data(prec%restr,inp_unit) ! restriction over application of AS
call read_data(prec%prol,inp_unit) ! prolongation over application of AS
@@ -600,12 +605,13 @@ contains
! Second smoother/ AMG post-smoother (if NONE ignored in main)
call read_data(prec%smther2,inp_unit) ! smoother type
call read_data(prec%jsweeps2,inp_unit) ! (post-)smoother sweeps
call read_data(prec%degree2,inp_unit) ! (post-)smoother sweeps
call read_data(prec%degree2,inp_unit) ! Degree of Polynomial smoother
call read_data(prec%variant2,inp_unit) ! Polynomial smoother variant
call read_data(prec%novr2,inp_unit) ! number of overlap layers
call read_data(prec%restr2,inp_unit) ! restriction over application of AS
call read_data(prec%prol2,inp_unit) ! prolongation over application of AS
call read_data(prec%solve2,inp_unit) ! local subsolver
call read_data(prec%ssweeps2,inp_unit) ! inner solver sweeps
call read_data(prec%ssweeps2,inp_unit) ! inner solver sweeps
call read_data(prec%variant2,inp_unit) ! AINV variant
call read_data(prec%fill2,inp_unit) ! fill-in for incomplete LU
call read_data(prec%invfill2,inp_unit) !Inverse fill-in for INVK
@@ -672,6 +678,7 @@ contains
call psb_bcast(ctxt,prec%smther)
call psb_bcast(ctxt,prec%jsweeps)
call psb_bcast(ctxt,prec%degree)
call psb_bcast(ctxt,prec%variant)
call psb_bcast(ctxt,prec%novr)
call psb_bcast(ctxt,prec%restr)
call psb_bcast(ctxt,prec%prol)
@@ -685,6 +692,7 @@ contains
call psb_bcast(ctxt,prec%smther2)
call psb_bcast(ctxt,prec%jsweeps2)
call psb_bcast(ctxt,prec%degree2)
call psb_bcast(ctxt,prec%variant2)
call psb_bcast(ctxt,prec%novr2)
call psb_bcast(ctxt,prec%restr2)
call psb_bcast(ctxt,prec%prol2)
samples/advanced/pdegen/runs/amg_pde3d.inp
+8 -6
View File
@@ -4,16 +4,17 @@ CSR ! Storage format CSR COO JAD
CONST ! PDECOEFF: CONST, EXP, GAUSS Coefficients of the PDE
BICGSTAB ! Iterative method: BiCGSTAB BiCGSTABL BiCG CG CGS FCG GCR RGMRES
2 ! ISTOPC
00500 ! ITMAX
00050 ! ITMAX
1 ! ITRACE
30 ! IRST (restart for RGMRES and BiCGSTABL)
1.d-6 ! EPS
%%%%%%%%%%% Main preconditioner choices %%%%%%%%%%%%%%%%
ML-VBM-VCYCLE-FBGS-D-BJAC ! Longer descriptive name for preconditioner (up to 20 chars)
BJAC ! Preconditioner type: NONE JACOBI GS FBGS BJAC AS ML
ML ! Preconditioner type: NONE JACOBI GS FBGS BJAC AS ML
%%%%%%%%%%% First smoother (for all levels but coarsest) %%%%%%%%%%%%%%%%
BJAC ! Smoother type JACOBI FBGS GS BWGS BJAC AS. For 1-level, repeats previous.
1 ! Number of sweeps for smoother
FBGS ! Smoother type JACOBI FBGS GS BWGS BJAC AS. For 1-level, repeats previous.
4 ! Number of sweeps for smoother
4 ! degree for polynomial smoother
0 ! Number of overlap layers for AS preconditioner
HALO ! AS restriction operator: NONE HALO
NONE ! AS prolongation operator: NONE SUM AVG
@@ -24,8 +25,9 @@ LLK ! AINV variant
1 ! Inverse Fill level P for INVK
1.d-4 ! Threshold T for ILU(T,P)
%%%%%%%%%%% Second smoother, always ignored for non-ML %%%%%%%%%%%%%%%%
NONE ! Second (post) smoother, ignored if NONE
1 ! Number of sweeps for (post) smoother
NONE ! Second (post) smoother, ignored if NONE
4 ! Number of sweeps for (post) smoother
4 ! degree for polynomial smoother
0 ! Number of overlap layers for AS preconditioner
HALO ! AS restriction operator: NONE HALO
NONE ! AS prolongation operator: NONE SUM AVG