log File for debugging option in tessellation module about neper

[rquey]

Right now, the best way to get some information on what is going wrong is to recompile neper with debugging on and optimization off:

cmake -DDEVEL_DEBUGGING_FLAG=ON -DDEVEL_OPTIMIZATION=OFF ..
make

and run neper through gdb:

gdb ./neper
(gdb) run -T -checktess name.tess
Starting program: neper/src/build/neper -T -checktess name.tess
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

========================    N   e   p   e   r    =======================
Info   : A software package for polycrystal generation and meshing.
Info   : Version 3.5.2-18
Info   : Built with: gsl|muparser|opengjk|openmp|nlopt|libscotch (full)
Warning: Built with: no optimization.            NOT FOR PRODUCTION USE.
Warning: Built with: debugging compilation flag. NOT FOR PRODUCTION USE.
[New Thread 0x7ffff6110700 (LWP 13875)]
[New Thread 0x7ffff590f700 (LWP 13876)]
[New Thread 0x7ffff510e700 (LWP 13877)]
[New Thread 0x7ffff490d700 (LWP 13878)]
[New Thread 0x7ffff410c700 (LWP 13879)]
[New Thread 0x7ffff390b700 (LWP 13880)]
[New Thread 0x7ffff310a700 (LWP 13881)]
Info   : Running on 8 threads.
Info   : <http://neper.info>
Info   : Copyright (C) 2003-2019, and GNU GPL'd, by Romain Quey.
Info   : Loading initialization file `/home/rquey/.neperrc'...
Info   : ---------------------------------------------------------------
Info   : MODULE  -T loaded with arguments:
Info   : [ini file] -format tess,geo -tesrformat ascii
Info   : [com line] -checktess name.tess
Info   : ---------------------------------------------------------------
Info   : Reading input data...
Info   : Checking tessellation...
Info   :     [i] Parsing file `name.tess'...

Thread 1 "neper" received signal SIGABRT, Aborted.
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
51      ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) where
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1  0x00007ffff6355801 in __GI_abort () at abort.c:79
#2  0x0000555555786613 in neut_tess_fscanf_face (pTess=0x555555a55e10, file=0x555555a52d30)
    at neper/src/neut/neut_tess/neut_tess_fscanf/neut_tess_fscanf2.c:300
#3  0x000055555572f8f6 in neut_tess_fscanf (file=0x555555a52d30, pTess=0x555555a55e10)
    at neper/src/neut/neut_tess/neut_tess_fscanf/neut_tess_fscanf1.c:29
#4  0x000055555572fae1 in neut_tess_name_fscanf (name=0x555555a5d760 "name.tess", pTess=0x555555a55e10)
    at neper/src/neut/neut_tess/neut_tess_fscanf/neut_tess_fscanf1.c:76
#5  0x00005555555f8390 in neper_t (fargc=5, fargv=0x555555a52510, argc=3, argv=0x7fffffffd7a0)
    atneper/src/neper_t/neper_t.c:62
#6  0x00005555555d4465 in main (argc=4, argv=0x7fffffffd798)
    at neper/src/neper.c:109

Looking at src/neut/neut_tess/neut_tess_fscanf/neut_tess_fscanf2.c, you can see that there is an error while reading the faces.

Going back to name.txt, you can see that, for the first face, you have declared 5 edges but you are providing 6 ids:

 **face
 38
 1 [...]
     5 1 2 3 4 5 6

PS. I'm curious about your tessellation and why you cannot generate it with Neper.

[theo258]

Yes, as you described this debugging is working well. Thank you.