maximal weights allowed and int overflow problem

[zhiyuan8]

Greetings editors,
I have a graph with very imbalanced weights. There are 2000 edges, and around 1000 of them have weights 10 million. When partition, I get a negative cutting edge cost which indicates int overflow.
In your src/metis.h, it is specified:
#define IDXTYPEWIDTH 64
Then I modified REALTYPEWIDTH to be 64:
#define REALTYPEWIDTH 64

However, after I build it by:
sudo python3 setup.py install

The test case still reports a negative cutting edge cost. May I know how to fix this issue? Thanks!