code_saturne User's Forum

Posted: **Wed Mar 06, 2013 2:39 pm**

Hi everyone,

I currently face a problem with an "old" version of Code_Saturne : 2.0.0-rc1. I try to use an UNV mesh but the preprocessor (ECS) fails to load it.

Maybe there is a trick to solve this issue. My UNV file is generated with SALOME (I tried version 5.1.5 and version 6.6.0).

Here is my mesh quality criteria checks :

Code: Select all

/opt/saturne/cs-2.0-beta2/bin/cs_preprocess --in ecs_cmd -m 
/work/Etude_Box/MESH/box_unvS5.unv --ensight --case check_mesh 

  .------------------------------.
  |                              |
  |   Code_Saturne Preprocessor  |
  |                              |
  `------------------------------'

  ECS   version 2.0.0-rc1   (Thu 13 May 2010 05:08:41 PM CEST)

  CGNS 2.5.4 file format support
  MED 2.3.6 (HDF5 1.6.9) file format support
  Reading of compressed files ('.gz') with Zlib 1.2.3.3



Case configuration
------------------

  Date                : Wed 06 Mar 2013 02:12:46 PM CET
  System              : Linux 2.6.32-45-generic
  Machine             : samantha
  Processor           : Quad-Core AMD Opteron(tm) Processor 2376
  Memory              : 16468396
  User                : quentin (Quentin BEY)
  Directory           : /work/Etude_Box/CAS_UNV/RESU

  Case name           : check_mesh
  Mesh file           : /work/Etude_Box/MESH/box_unvS5.unv



Reading mesh from file in I-deas universal format
----------------------
  Mesh file: /work/Etude_Box/MESH/box_unvS5.unv


  Number of vertices                          :        8
SIGSEGV signal (access to forbidden memory area) intercepted !

Call stack 
1: 0x42cb0b (cs_preprocess)
2: 0x40e9a8 (cs_preprocess)
3: 0x409f40 (cs_preprocess)
4: 0x7fd14cb18c4d (libc.so.6)
5: 0x4041a9 (cs_preprocess)
End of stack

Another question : Is it possible to use a more recent preprocessor ? What is the newest preprocessor version that is compatible with CS 2.0.0-rc1 ?

Thanks for any clue or workaround, you may give to me.

Best regards,

Quentin

Posted: **Wed Mar 06, 2013 6:30 pm**

Hello,

The most recent version of ECS compatible with NCS 2.0-rc1 is ECS 2.0.3 (the latest in the 2.0 branch), which you can download from this web site). An yes, it includes a bug fix relative to UNV files, so it may work better for you.

In any case, I would recommend upgrading at least from 2.0-rc1 to 2.0.6 (3.0-rc1 is better, but will require more changes to your data setup). Version 2.0 will be maintained until version 4.0 is released (december 2014), while 2.0-beta and 2.0-rc versions are not maintained.

Regards,

Yvan

Posted: **Thu Mar 07, 2013 3:26 pm**

Hi Yvan,

Thanks a lot for your answer ! My UNV mesh is well read with ECS 2.0.3.

Actually, I'm really interested in an upgrade from 2.0-rc1 to 2.0.6, but I can't find any release note concerning the differences "between those two versions". Are there only minor bug fixes ? I was not able to determine the SVN revisions corresponding so as to watch the logs...

Best regards,

Quentin

Posted: **Thu Mar 07, 2013 10:30 pm**

Hello,

For the Kernel, you have an up to date ChangeLog here:

http://code-saturne.org/viewvc/saturne/ ... ersion2_0/

For prerequisites, you would need to download them, to check their ChangeLogs.

For Code_Saturne 3.0, things are both simpler, as there is only one package, and more complex, as the current ChangeLog is autogenerated from subversion logs, and not versioned per se, though the NEWS file is versioned (the NEWS file is now "useful" in both version 2.0 and 3.0 branches, which was not the case even a few weeks ago).

Regards,

Yvan

Posted: **Mon Mar 11, 2013 10:55 am**

Hi Yvan,

Thank you for this answer !

Best regards,

Quentin

code_saturne User's Forum

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