[Coin-discuss] New OSI point release 0.95.2

[Ted Ralphs]

Matt,

I think I may have you a bit astray. It seems that SYMPHONY release 
5.1.1 doesn't actually work properly under Linux with Osi 0.95.2 (but 
does work fine with 0.95.1). With 0.95.2, everything builds, but if I 
try to run, I get errors like:

./vrp -F sample.vrp -N 1

PROBLEM NAME:           eil51
TYPE:                   CVRP
DIMENSION:              51
INITIAL UPPER BOUND:    None

Solving...

*** glibc detected *** ./vrp: double free or corruption (!prev): 
0x082a6068 ***

Even the unit test doesn't complete properly now. I'm not sure what 
happened between when I told it was fine and the release, but somewhere 
in there, stuff stopped working. I've seen errors like this before and 
it's usually from linking incompatible libraries. Probably, we are 
somehow using incompatible sets or parameters to build SYMPHONY and Osi. 
If I set the externals back to 0.95.1, everything is fine. Sorry for the 
bad news.

Cheers,

Ted
-- 
Dr. Ted Ralphs
Associate Professor
Industrial and Systems Engineering
Lehigh University
(610)758-4784
tkralphs at lehigh.edu
www.lehigh.edu/~tkr2