[Bonmin] Negative cpu secs?

[Rodrigo López Negrete de la Fuente]

Hi all,

I've been noticing that, sometimes, ipopt returns negative time values when
using bonmin. I'm not sure where the error could be, but for example I
sometimes get:

[ sniped output ...]
Number of Lagrangian Hessian evaluations             = 135
Total CPU secs in IPOPT (w/o function evaluations)   =   -267.789
Total CPU secs in NLP function evaluations           =    548.166

EXIT: Optimal Solution Found.
IpOp0006I Ipopt return (for resolve): status  0, iter count  135, time
280.378
IpOp0009I     3        OPT         3095.02        135      280.378

I wish to properly report the time that the solver took, but I'm not sure if
I should add the absolute values or if there really is a problem in the
timing functions. Has anybody else seen this type of behavior? Any ideas?

Thanks,
  Rodrigo


-- 
Rodrigo López Negrete
http://muon.blogdns.org/~rush/
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