Segmentation fault - invalid memory reference

System Modules TOMAWAC
1

Hello,

I noticed that when I turn the keyword LIMIT SPECTRUM MODIFIED BY THE USER into YES/TRUE this error occures:

================================================================================

   TEMPS :       0.0000 SECONDES                            0IEME  ITERATION

runcode::main:

:

|runCode: Fail to run

|C:\Users\Sara\Desktop\aiuto\quad.cas_2018-09-01-18h34min53s\out_fortran_modif2.exe

|~~~~~~~~~~~~~~~~~~

|Program received signal SIGSEGV: Segmentation fault - invalid memory reference.

|

|Backtrace for this error:

|~~~~~~~~~~~~~~~~~~

C:\Windows\System32>

C:\Windows\System32>tomawac.py C:\Users\Sara\Desktop\aiuto\quad.cas

I think I need this keyword because I’m doing a simulation in which I change the wave height as the time passes (tomawac topic [name removed]).

If I don’t use the keyword, the simulation does not take the wave height signal (so the fortran file) into account.

May anybody know how to solve this problem?

Thank you

quad.cas (2.35 KB)
fortran_modif2_2018-09-01.f (11.2 KB)
waves_lim.txt (33.2 KB)

2

Moreover I don’t think it’s a problem related to the mesh size. I did this simulation with 4 or 5 different geometries which always worked before (other test cases).

3

Hello

This will not explain every thing but i have some remarks,

  • If you are using version V7P3 you should update your fortran user (limwac) the one you are using doesn’t have the good number of arguments.

  • You are reading only the 10 first points of your file which have around 1000 points.

  • the way you read your points suppose that your time is increasing but that is not the case in the txt file (time 0 is at line 38)

  • The test [name removed]) might not occur, firstly because at_pp(1).eq.78600 and because it is dangerous to test equality of double.

Better to test abs(at-at_pp(k)).LT.1.e-7

  • May be that the last point is change your call to speini :

‘call speini(fbor’ instead of ‘call speini(FB_CTE’

since fb_cte is not allocated when speuli is true

1 Like
4

I face a similar issue.

I created a model and could run it perfectly in v7p2 on Ubuntu 16.04. No I installed v7p3 on Win10 and wanted to run my model, since I miss a result file.

Unfortunately I can not run a single simulation since I always get the error

Program received signal SIGSEGV: Segmentation fault - invalid memory reference

I attach the Output to get a better view of the problem.

Moreover, I sometimes get an error, that the Keyword is not recognized, usually it is the one from the TOMAWAC .cas file. How can I fix this? I tested several examples and all run perfectly.

Thank you so much for help in advance.

[name removed]

Std_Out.txt (14.8 KB)