[petsc-users] TS failed due to diverged_step_rejected
Matthew Knepley
knepley at gmail.com
Fri Feb 17 14:15:16 CST 2023
I am not sure what TS you are using, but the estimate of the local
truncation error is 91.4, and does not seem
to change when you make the step smaller, so something is off. You can shut
off the adaptivity using
-ts_adapt_type none
Thanks,
Matt
On Fri, Feb 17, 2023 at 3:01 PM Tu, Jiannan <Jiannan_Tu at uml.edu> wrote:
> These are what I got with the options you suggested.
>
>
>
> Thank you,
>
> Jiannan
>
>
>
>
> -------------------------------------------------------------------------------
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 1.673091274668e-03
>
> Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 8.715428433630e-02
>
> 1 SNES Function norm 4.995727626692e-04
>
> 2 SNES Function norm 5.498018152230e-08
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 2
>
> 0 SNES Function norm 3.237461568254e-01
>
> 1 SNES Function norm 7.988531005091e-04
>
> 2 SNES Function norm 1.280948196292e-07
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 2
>
> TSAdapt basic arkimex 0:3 step 0 rejected t=42960 + 2.189e-02
> dt=4.374e-03 wlte= 91.4 wltea= -1 wlter= -1
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 4.881903203545e-04
>
> Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 7.562592690785e-02
>
> 1 SNES Function norm 1.143078818923e-04
>
> 2 SNES Function norm 9.834547907735e-09
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 2
>
> 0 SNES Function norm 2.683968949758e-01
>
> 1 SNES Function norm 1.838028436639e-04
>
> 2 SNES Function norm 9.470813523140e-09
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 2
>
> TSAdapt basic arkimex 0:3 step 0 rejected t=42960 + 4.374e-03
> dt=4.374e-04 wlte= 91.4 wltea= -1 wlter= -1
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 1.821562431175e-04
>
> Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 1.005443458812e-01
>
> 1 SNES Function norm 3.633336946661e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 1.515368382715e-01
>
> 1 SNES Function norm 3.389298316830e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> TSAdapt basic arkimex 0:3 step 0 rejected t=42960 + 4.374e-04
> dt=4.374e-05 wlte= 91.4 wltea= -1 wlter= -1
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 4.541003359206e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 1.713800906043e-01
>
> 1 SNES Function norm 1.179958172167e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 2.020265094117e-01
>
> 1 SNES Function norm 1.513971290464e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> TSAdapt basic arkimex 0:3 step 0 rejected t=42960 + 4.374e-05
> dt=4.374e-06 wlte= 91.4 wltea= -1 wlter= -1
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 6.090269704320e-06
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 2.136603895703e-01
>
> 1 SNES Function norm 1.877474016012e-06
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 3.127812462507e-01
>
> 1 SNES Function norm 2.713146825704e-06
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> TSAdapt basic arkimex 0:3 step 0 rejected t=42960 + 4.374e-06
> dt=4.374e-07 wlte= 91.4 wltea= -1 wlter= -1
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 2.793512213059e-06
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 2.205196267430e-01
>
> 1 SNES Function norm 2.572653773308e-06
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 3.260057361977e-01
>
> 1 SNES Function norm 2.705816087598e-06
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> TSAdapt basic arkimex 0:3 step 0 rejected t=42960 + 4.374e-07
> dt=4.374e-08 wlte= 91.4 wltea= -1 wlter= -1
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 2.764855860446e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 2.212505522844e-01
>
> 1 SNES Function norm 2.958996472386e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 3.273222034162e-01
>
> 1 SNES Function norm 2.994512887620e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> TSAdapt basic arkimex 0:3 step 0 rejected t=42960 + 4.374e-08
> dt=4.374e-09 wlte= 91.4 wltea= -1 wlter= -1
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 3.317240589134e-04
>
> Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 2.213246532918e-01
>
> 1 SNES Function norm 2.799468604767e-04
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 3.274570888397e-01
>
> 1 SNES Function norm 3.066048050994e-04
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> TSAdapt basic arkimex 0:3 step 0 rejected t=42960 + 4.374e-09
> dt=4.374e-10 wlte= 91.4 wltea= -1 wlter= -1
>
> 0 SNES Function norm 2.274473072189e+03
>
> 1 SNES Function norm 2.653507278572e-03
>
> Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 2.213869585841e-01
>
> 1 SNES Function norm 2.177156902895e-03
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 3.275136370365e-01
>
> 1 SNES Function norm 1.962849131557e-03
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> TSAdapt basic arkimex 0:3 step 0 rejected t=42960 + 4.374e-10
> dt=4.374e-11 wlte= 91.4 wltea= -1 wlter= -1
>
> 0 SNES Function norm 2.274473072218e+03
>
> 1 SNES Function norm 5.664907315679e-03
>
> Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 2.223208399368e-01
>
> 1 SNES Function norm 5.688863091415e-03
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 3.287121218919e-01
>
> 1 SNES Function norm 4.085338521320e-03
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> TSAdapt basic arkimex 0:3 step 0 rejected t=42960 + 4.374e-11
> dt=4.374e-12 wlte= 91.4 wltea= -1 wlter= -1
>
> 0 SNES Function norm 2.274473071968e+03
>
> 1 SNES Function norm 4.694691905235e-04
>
> Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 2.211786508657e-01
>
> 1 SNES Function norm 1.503497433939e-04
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 3.272667798977e-01
>
> 1 SNES Function norm 2.176132327279e-04
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> TSAdapt basic arkimex 0:3 step 0 rejected t=42960 + 4.374e-12
> dt=4.374e-13 wlte= 91.4 wltea= -1 wlter= -1
>
> [0]PETSC ERROR: --------------------- Error Message
> --------------------------------------------------------------
>
> [0]PETSC ERROR:
>
> [0]PETSC ERROR: TSStep has failed due to DIVERGED_STEP_REJECTED
>
> [0]PETSC ERROR: See https://petsc.org/release/faq/ for trouble shooting.
>
> [0]PETSC ERROR: Petsc Release Version 3.16.6, Mar 30, 2022
>
> [0]PETSC ERROR: ./iditm3d on a named office by jtu Fri Feb 17 14:54:22
> 2023
>
> [0]PETSC ERROR: Configure options --prefix=/usr/local
> --with-mpi-dir=/usr/local --with-fc=0 --with-openmp
> --with-hdf5-dir=/usr/local --download-f2cblaslapack=1
>
> [0]PETSC ERROR: #1 TSStep() at
> /home/jtu/Downloads/petsc-3.16.6/src/ts/interface/ts.c:3583
>
>
>
>
>
>
>
> *From: *Barry Smith <bsmith at petsc.dev>
> *Sent: *Friday, February 17, 2023 12:58 PM
> *To: *Tu, Jiannan <Jiannan_Tu at uml.edu>
> *Cc: *petsc-users <petsc-users at mcs.anl.gov>
> *Subject: *Re: [petsc-users] TS failed due to diverged_step_rejected
>
>
>
> *CAUTION:* This email was sent from outside the UMass Lowell network.
>
>
>
>
>
> Can you please run with also the options -ts_monitor -ts_adapt_monitor ?
>
>
>
> The output is confusing because it prints that the Nonlinear solve has
> converged but then TSStep has failed due to DIVERGED_STEP_REJECTED which
> seems contradictory
>
>
>
>
>
>
>
> On Feb 17, 2023, at 12:09 PM, Tu, Jiannan <Jiannan_Tu at uml.edu> wrote:
>
>
>
> My code uses TS to solve a set of multi-fluid MHD equations. The jacobian
> is provided with function F(t, u, u'). Both linear and nonlinear solvers
> converge but snes repeats itself until gets "TSStep has failed due to
> diverged_step_rejected."
>
>
>
> Is it because I used TSStep rather than TSSolve? I have checked the
> condition number. The condition number with pc_type asm is about 1 (without
> precondition it is about 4x10^4). The maximum ratio of off-diagonal
> jacobian element over diagonal element is about 21.
>
>
>
> Could you help me to identify what is going wrong?
>
>
>
> Thank you very much!
>
>
>
> Jiannan
>
>
>
>
> ---------------------------------------------------------------------------------------------------
>
> Run command with options
>
>
>
> mpiexec -n $1 ./iditm3d -ts_type arkimex -snes_tyep ngmres -ksp_type
> gmres -pc_type asm \
>
> -ts_rtol 1.0e-4 -ts_atol 1.0e-4 -snes_monitor -snes_rtol 1.0e-4 -snes_atol
> 1.0e-4 \
>
> -snes_converged_reason
>
>
>
> The output message is
>
>
>
> Start time advancing ...
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 1.673091274668e-03
>
> Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 8.715428433630e-02
>
> 1 SNES Function norm 4.995727626692e-04
>
> 2 SNES Function norm 5.498018152230e-08
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 2
>
> 0 SNES Function norm 3.237461568254e-01
>
> 1 SNES Function norm 7.988531005091e-04
>
> 2 SNES Function norm 1.280948196292e-07
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 2
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 4.881903203545e-04
>
> Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 7.562592690785e-02
>
> 1 SNES Function norm 1.143078818923e-04
>
> 2 SNES Function norm 9.834547907735e-09
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 2
>
> 0 SNES Function norm 2.683968949758e-01
>
> 1 SNES Function norm 1.838028436639e-04
>
> 2 SNES Function norm 9.470813523140e-09
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 2
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 1.821562431175e-04
>
> Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 1.005443458812e-01
>
> 1 SNES Function norm 3.633336946661e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 1.515368382715e-01
>
> 1 SNES Function norm 3.389298316830e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 4.541003359206e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 1.713800906043e-01
>
> 1 SNES Function norm 1.179958172167e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 2.020265094117e-01
>
> 1 SNES Function norm 1.513971290464e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 6.090269704320e-06
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 2.136603895703e-01
>
> 1 SNES Function norm 1.877474016012e-06
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 3.127812462507e-01
>
> 1 SNES Function norm 2.713146825704e-06
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 2.793512213059e-06
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 2.205196267430e-01
>
> 1 SNES Function norm 2.572653773308e-06
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 3.260057361977e-01
>
> 1 SNES Function norm 2.705816087598e-06
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 2.764855860446e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 2.212505522844e-01
>
> 1 SNES Function norm 2.958996472386e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 3.273222034162e-01
>
> 1 SNES Function norm 2.994512887620e-05
>
> Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1
>
> 0 SNES Function norm 2.274473072186e+03
>
> 1 SNES Function norm 3.317240589134e-04
>
> Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 2.213246532918e-01
>
> 1 SNES Function norm 2.799468604767e-04
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 3.274570888397e-01
>
> 1 SNES Function norm 3.066048050994e-04
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 2.274473072189e+03
>
> 1 SNES Function norm 2.653507278572e-03
>
> Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 2.213869585841e-01
>
> 1 SNES Function norm 2.177156902895e-03
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 3.275136370365e-01
>
> 1 SNES Function norm 1.962849131557e-03
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 2.274473072218e+03
>
> 1 SNES Function norm 5.664907315679e-03
>
> Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 2.223208399368e-01
>
> 1 SNES Function norm 5.688863091415e-03
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 3.287121218919e-01
>
> 1 SNES Function norm 4.085338521320e-03
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 2.274473071968e+03
>
> 1 SNES Function norm 4.694691905235e-04
>
> Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 2.211786508657e-01
>
> 1 SNES Function norm 1.503497433939e-04
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> 0 SNES Function norm 3.272667798977e-01
>
> 1 SNES Function norm 2.176132327279e-04
>
> Nonlinear solve converged due to CONVERGED_SNORM_RELATIVE iterations 1
>
> [0]PETSC ERROR: --------------------- Error Message
> --------------------------------------------------------------
>
> [0]PETSC ERROR:
>
> [0]PETSC ERROR: TSStep has failed due to DIVERGED_STEP_REJECTED
>
> [0]PETSC ERROR: See https://petsc.org/release/faq/
> <https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpetsc.org%2Frelease%2Ffaq%2F&data=05%7C01%7CJiannan_Tu%40uml.edu%7C3e6f11605fab43c95c2408db11108a7a%7C4c25b8a617f746f983f054734ab81fb1%7C0%7C0%7C638122534984142994%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=k0lAvbqtvRt6nMClf1e7MUT3LKU9B3ir2uek9OiRVSk%3D&reserved=0>
> for trouble shooting.
>
> [0]PETSC ERROR: Petsc Release Version 3.16.6, Mar 30, 2022
>
> [0]PETSC ERROR: ./iditm3d on a named office by jtu Fri Feb 17 11:59:43
> 2023
>
> [0]PETSC ERROR: Configure options --prefix=/usr/local
> --with-mpi-dir=/usr/local --with-fc=0 --with-openmp
> --with-hdf5-dir=/usr/local --download-f2cblaslapack=1
>
> [0]PETSC ERROR: #1 TSStep() at
> /home/jtu/Downloads/petsc-3.16.6/src/ts/interface/ts.c:3583
>
>
>
>
>
--
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
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