yade-dev team mailing list archive

[Bruno Chareyre <bruno.chareyre@xxxxxxxxxxx>]

Hi,

The only annoying thing I found with python scripting (compared with 
complex routines in c++ engines) is that you can't really _save_ the 
simulation.
By "save", I mean stop a simulation and write it to a file, and later 
restart Yade, reload it and continue as if it had never been stopped.
It is not possible with most python scripts I have. Some variables are 
lost, and in the worst case (see peri-triax.py->doneHook), c++ is 
calling some python functions that will not be defined after reload. I 
found a few workarounds, but they are relatively painfull (namely 
emulate the previous context by redefining similar functions, but if you 
need python variables that are updated during the simulation you are 
toasted).

So, I have been thinking to PFC, where user defined functions and global 
variables (PFC "fish" langage has ony globals anyway...) are saved at 
the same time as particles positions and forces. I googled "save python 
globals" or "save python context" a little but it didn't return anything 
relevant.

Before I dive deeper into this question, do you think it is possible, at 
least theoreticaly, to save a full yade session somehow?

Thanks.

Bruno