Ok Jeff, thanks very much for your support!
2012/1/31 Jeff Squyres <jsquyres_at_[hidden]>
> On Jan 31, 2012, at 3:59 AM, Gabriele Fatigati wrote:
> > I have very interesting news. I recompiled OpenMPI 1.4.4 enabling the
> > Now the warning on strcmp is disappeared also without buffers
> initializations using memset!
> > So the warning is a false positive? My simple code is safe?
> If you were using IB as the network transport, yes, it's a false positive.
> With memchecker enabled, Open MPI will *always* tell Valgrind that the
> entire contents of the buffer are defined, even when the data is coming
> from an OS-bypass transport (such as an OpenFabrics-based device, like IB).
> Jeff Squyres
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Ing. Gabriele Fatigati
SuperComputing Applications and Innovation Department
Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy
www.cineca.it Tel: +39 051 6171722
g.fatigati [AT] cineca.it