[pdp-discuss] Limitations of PDP++?

[David Huber]

Hello,

I've got my network set up and behaving the way that I want it to, but I've come across a couple of interesting limitations that I am wondering if I can overcome or work around.

1. I have created a rather large network in a script file: it has thousands of units (not all of them connected). One time in particular, I was trying to create a much larger network, and the program segmentation faulted before the process completed. I had the 'heap_chunk_in_mb' key in my registry set very high (1GB or so) with plenty of RAM to back that up. I'd like to know what causes this problem, and if there is any type of workaround.

2. Also, while trying to load another particularly large file (an environment), I was presented with the error message: 

"string: requested length out of range"

repeated many times, followed by a series of digits that had once been in my script file. I've deduced that it is related to the number of characters in the string, since reducing the precision of the values provided a temporary fix. However, this severely limits the size of the networks I can use. Is there a hard-coded value somewhere that can be changed, or is this something I just have to live with?

Thanks to everyone for all of your help. I think I am finally starting to get a feel for this program.

David