MIP headache in ns-2

I have look at the resources you sent and while I must say thank you, they don’t appear to have valid information. The event id in ns-2 is now a int64_t as opposed to int32_t and the trace files size are well within range when the simulation hang. I have reduced the memory overhead by removing unused headers but I don’t get the impression that memory is a problem because I am not generating that many packets.
I have looked at the other “fundamental solutions” but I am not sure they apply to a MIP scenario.

Any other suggestion anyone??