New Operator DEFI_CONT

IV_CoAs · June 24, 2026, 10:41am

Hello,

In new version are new interesting operators, “MECA_NON_LINE” and “DEFI_CONT”.

I have compiled from Gitlab version 17.4.18 and it works, except it gives error “DEFI_CONT” not found.

My question, is something other commands needed to activate “DEFI_CONT”.

In source code I found it from /MacroCommands directory, but was missing from /Cata/Commands and /CodeCommands directories.

Messages from solver: "

KONTTI = DEFI_CONT(MODELE=MALLI,

         ^^^^^^^^^

NameError: name ‘DEFI_CONT’ is not defined

Traceback (most recent call last):

File “”, line 198, in _run_module_as_main

File “”, line 88, in _run_code

File “/opt/aster/install/20251026/gcc12-openblas-ompi4/mpi4py-3.1.6/lib/python3.11/site-packages/mpi4py/main.py”, line 7, in

main()

File “/opt/aster/install/20251026/gcc12-openblas-ompi4/mpi4py-3.1.6/lib/python3.11/site-packages/mpi4py/run.py”, line 230, in main

run_command_line(args)

File “/opt/aster/install/20251026/gcc12-openblas-ompi4/mpi4py-3.1.6/lib/python3.11/site-packages/mpi4py/run.py”, line 47, in run_command_line

run_path(sys.argv[0], run_name='__main__')

File “”, line 291, in run_path

File “”, line 98, in _run_module_code

File “”, line 88, in _run_code

File “Test_2.comm.changed.py”, line 84, in

KONTTI = DEFI_CONT(MODELE=MALLI,

         ^^^^^^^^^

NameError: name ‘DEFI_CONT’ is not defined. Did you mean: ‘DEFI_CONTACT’?

"

I repeat, in V17 documentation is this DEFI_CONT, but my compiled from GitLab I receive this error.

Best Regards

Ilkka

AsterOdactyle · June 25, 2026, 12:03pm

Sorry ! The command is not yet “official”. To use it:

from code_aster.MacroCommands.defi_cont import DEFI_CONT

IV_CoAs · June 25, 2026, 12:44pm

Kiitos/Merci!

Ilkka

AsterOdactyle · June 25, 2026, 3:34pm

Finland ?

Nice !

v_kumar · July 17, 2026, 11:47am

Hello,

I try to use DEFI_CONT and MECA_NON_LINE but always get this error:

` ║ <JEVEUX_62> ║

║ ║

║ Erreur lors de l’allocation dynamique. Il n’a pas été possible d’allouer ║

║ une zone mémoire de longueur 3710 Mo, on dépasse la limite maximum ║

║ fixée à 4150 Mo et on occupe déjà 975 Mo. ║

║ La dernière opération de libération mémoire a permis de récupérer 202 Mo. ║

║ `

Setting MPI_NBCPU to 1 or 2 or any value, I get the above error. ALso, even if I increase the memory the error persists. What should be done?

Regards

Anirudh

v_kumar · July 18, 2026, 3:50am

Hello,

In docker v18.1.0, I got the above error.

In singularity 18.0.19 compiled version, nothing happens. There is no response from terminal after reading .comm file.

EdIT

I could make it run but results are not saved if MECA_NON_LINE fails after a few converged steps., even though I used

try:

evolu_noli = MECA_NON_LINE(...)

except:

pass

I get following error:

`[1,1]: NameError: name ‘evolu_noli’ is not defined

[1,5]: NameError: name ‘evolu_noli’ is not defined

[1,1]:

[1,1]: Exception: Trying to close the database after an uncaught exception…

[1,1]:

[1,1]: Publishing the result of the current command MECA_NON_LINE…

[1,1]:

[1,5]:

[1,5]: Exception: Trying to close the database after an uncaught exception…

[1,5]:

[1,5]: Publishing the result of the current command MECA_NON_LINE…

[1,5]:

[1,2]: Objects not saved on processor #2

[1,4]: Objects not saved on processor #4

[1,3]: Objects not saved on processor #3

[1,1]: Objects not saved on processor #1

[1,5]: Objects not saved on processor #5

[1,1]: No database in results, objects not saved on processor #1

[1,3]: No database in results, objects not saved on processor #3

[1,4]: No database in results, objects not saved on processor #4

[1,2]: No database in results, objects not saved on processor #2
`

Even bases are not saved.

Regards

Anirudh

IV_CoAs · August 2, 2026, 1:07pm

Hello,

ALGO_CONT=‘PENALISATION’ works, only porblem is, that I don’t know how to check penetration etc contact results.

I tried to use ALGO_CONT=‘NITSCHE’, but it fails at least in myself compiled version 17.5.2. Below error message:

Instant de calcul: 1.000000000000e-01

[1,4]:

[1,4]:-------------------------------------------------------------------------------------------------------

[1,4]:-------------------------------------------------------------------------------------------------------

[1,5]:DEBUG: ContactPairing.cxx #356: DEBUG: ContactPairing.cxx #356: Assertion failed: cellIndx != -1

[1,5]:DEBUG: ContactPairing.cxx #356: ABORT - exit code 17

[1,5]:Fatal Python error: Aborted

[1,5]:

[1,5]:Current thread 0x0000722e6504f740 (most recent call first):

[1,5]: File “/opt/aster/install/PAR_17_5_2/lib64/aster/code_aster/Solvers/Main/contact_manager.py”, line 63 in pairing

[1,5]: File “/opt/aster/install/PAR_17_5_2/lib64/aster/code_aster/Utilities/statistics_manager.py”, line 54 in wrapper

[1,5]: File “/opt/aster/install/PAR_17_5_2/lib64/aster/code_aster/Solvers/IterationSolver/newton_solver.py”, line 166 in solve_iteration

[1,5]: File “/opt/aster/install/PAR_17_5_2/lib64/aster/code_aster/Utilities/statistics_manager.py”, line 54 in wrapper

[1,5]: File “/opt/aster/install/PAR_17_5_2/lib64/aster/code_aster/Solvers/IterationSolver/newton_solver.py”, line 122 in solve

[1,5]: File “/opt/aster/install/PAR_17_5_2/lib64/aster/code_aster/Utilities/statistics_manager.py”, line 54 in wrapper

[1,5]: File “/opt/aster/install/PAR_17_5_2/lib64/aster/code_aster/Solvers/StepSolvers/meca_stat_step_solver.py”, line 55 in solve

[1,5]: File “/opt/aster/install/PAR_17_5_2/lib64/aster/code_aster/Utilities/statistics_manager.py[1,5]:”, line 54 in wrapper

[1,5]: File “/opt/aster/install/PAR_17_5_2/lib64/aster/code_aster/Solvers/Main/non_linear_operator.py”, line 425 in run_[1,5]:

[1,5]: File “/opt/aster/install/PAR_17_5_2/lib64/aster/code_aster/Utilities/statistics_manager.py”, line 54 in wrapper

[1,5]: File “/opt/aster/install/PAR_17_5_2/lib64/aster/code_aster/Solvers/Main/non_linear_operator.py”, line 388 in run

[1,5]: File “/opt/aster/install/PAR_17_5_2/lib64/aster/code_aster/MacroCommands/meca_non_line_ops.py”, line 129 in meca_non_line_ops

[1,5]: File “/opt/aster/install/PAR_17_5_2/lib64/aster/code_aster/Supervis/ExecuteCommand.py”, line 742 in exec_

[1,5]: File “/opt/aster/install/PAR_17_5_2/lib64/aster/code_aster/Supervis/ExecuteCommand.py”, line 226 in run_

[1,5]: File “/opt/aster/install/PAR_17_5_2/lib64/aster/code_aster/Supervis/ExecuteCommand.py”, line 183 in run

I hope this helps developers.

Best Regards

Ilkka

v_kumar · August 4, 2026, 10:49am

Yea I believe its not tested enough to be operational yet.