regarding bimodal microstructure formation issue

[anujyadav0693]

respected sir,
please reply to my question. I am facing this issue for the last month. I want to make a bimodal microstructure, but the code is not running, showing a segmentation fault error. When I run code, it runs for two or three days. After that, it shows this-

neper -T -n from_morpho -morpho "diameq:lognormal(0.00005,0.000005)+0.1*lognormal(0.0005,0.00005),1-sphericity:lognormal(0.145,0.03)" -group "diameq>0.0001?1:2" -morphooptiini "weight:radeq,coo:packing" -dim 2 -domain "square(0.03,0.01)" -o void -format "geo,ori,tess"  -statcell diameq -oridescriptor "euler-bunge" -ori "fiber(0,0,1,0,0,1)" -statgroup area -statface id,area

========================    N   e   p   e   r    =======================
Info   : A software package for polycrystal generation and meshing.
Info   : Version 4.9.0
Info   : Built with: gsl|muparser|opengjk|openmp|nlopt|libscotch (full)
Info   : Running on 16 threads.
Info   : <https://neper.info>
Info   : Copyright (C) 2003-2022, and GNU GPL'd, by Romain Quey.
Info   : No initialization file found (`/home/anuj/.neperrc').
Info   : ---------------------------------------------------------------
Info   : MODULE  -T loaded with arguments:
Info   : [ini file] (none)
Info   : [com line] -n from_morpho -morpho
         diameq:lognormal(0.00005,0.000005)+0.1*lognormal(0.0005,0.00005),1-sphericity:lognormal(0.145,0.03)
         -group diameq>0.0001?1:2 -morphooptiini weight:radeq,coo:packing
         -dim 2 -domain square(0.03,0.01) -o void -format geo,ori,tess
         -statcell diameq -oridescriptor euler-bunge -ori
         fiber(0,0,1,0,0,1) -statgroup area -statface id,area
Info   : ---------------------------------------------------------------
Info   : Reading input data...
Info   : Creating domain...
Info   : Creating tessellation...
Info   :       . Number of cells: 15128
Info   :   - Setting seeds... 100%
Info   :   - Running tessellation...
Info   :     > Initial solution: f   =15.817946503
Info   :     > Iteration 350304: fmin=0.463485155 f=0.480361975
Info   :     > Iter    25941357: fmin==0.004002238 f==0.004002238 (2 subplex)Segmentation fault (core dumped)

Sir, please help and tell me where I need to correct. I have tried some times, but it is not running.

my code is this please correct this code

neper -T -n from_morpho -morpho "diameq:lognormal(0.00005,0.000005)+0.1*lognormal(0.0005,0.00005),1-sphericity:lognormal(0.145,0.03)" -group "diameq>0.0001?1:2" -morphooptiini "weight:radeq,coo:packing" -dim 2 -domain "square(0.03,0.01)" -o void -format "geo,ori,tess"  -statcell diameq -oridescriptor "euler-bunge" -ori "fiber(0,0,1,0,0,1)" -statgroup area -statface id,area

Please help. Thank you.

[rquey]

I'll look into it, but this one will be difficult to debug (given the number of iterations). What you can try is to stop optimization before failure occurs. Use -morphooptistop "val<1e-2", which will already give a very good solution.