State files and global variables

Hello community forum!

I have a question about state files and global variables. I ran the attached .fsm (version 4.32) until time=100 time units and then created a state file (see attachment). In the OnExit trigger of the source, I increase a global variable, so that it has the value 11 at time=100 time units.

As far as I understand state files, I first have to load the .fsm file, and then, I have to load the .fst file. When I do so, and print out the value of the global variable into the output console, it shows 0 instead of 11.

Therefore, I think, a model of me doesn't run properly after using an .fst file.

Doesn't an .fst file save all information of a model?

The background of my question is, that I need the possibility to save a model at a specific time, and then later, I must be able to let it run further beginning at the time of saving, because my model runs for 1 year real time, and that takes about 2.5 hours.

With kind regards

Markus Bans, Germany

Hi,

Yes, it looks like the state file do not include all information. Missing the Global Variables.

One solution is to use labels instead. The values of the labels is stored in the state file.

Lars-Olof

Markus, I tested this too in a tiny model and found the values are not saved.

You'll also find that the random number stream states are not saved at the moment so if you're hoping to repeat what would have happened without the state save, at the moment it's a bit tricky.

If you really need this, you could alter the session and save it as a a special statesaving session. I've already done this for the streams and it seem to work ok. If I get a chance I'll have a look at doing it for the global variables too and post it here if it works.

In the meantime I'll add it to the dev list.

Hi there,

tks. for your replies.

It would be very important for me to know , what isn't saved in an .fst file.

Global variables and randomness were mentioned, but what about e.g. messages etc. etc.

If I knew, what isn't saved, then maybe I could create a working .fst file, what is very helpful when looking for errors in long running models, but also of worth for the customers.

But if it isn't possible, then Flexsim should be able in a prospective version!


Kind regards,

Markus Bans, Germany