>does the gcc bounds checking stuff give you the possibility of saying "this memory is ok"?
I think yes. 2008/6/19 Gabriele Fatigati <g.fatig...@cineca.it>: > Just a moment: > > i didn't compile OpenMPI with bounds checking, but only my application. > Problems with OMPI compiled with bound checking remains. > > > 2008/6/19 Jeff Squyres <jsquy...@cisco.com>: > > On Jun 19, 2008, at 11:25 AM, Gabriele Fatigati wrote: >> >> Hi Jeff, >>> i solved using Gigabit net and eth1 interface! >>> >>> So, there are problems beetween Infiniband and gcc with bound checking. >>> >> >> This is probably not too surprising -- the IB driver gives back memory to >> the process that didn't come from malloc or other traditional memory >> allocators, and this can confuse bounds checkers, leading to false >> positives. >> >> In the upcoming v1.3 series, we added a whole pile of stuff to handle >> these kinds of false positives when running under valgrind. Just curious -- >> does the gcc bounds checking stuff give you the possibility of saying "this >> memory is ok"? (valgrind does; we use it for IB-driver allocated or >> initialized memory) >> >> >> -- >> Jeff Squyres >> Cisco Systems >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/users >> >> > > > -- > Gabriele Fatigati > > CINECA Systems & Tecnologies Department > > Supercomputing Group > > Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy > > www.cineca.it Tel: +39 051 6171722 > > g.fatig...@cineca.it > -- Gabriele Fatigati CINECA Systems & Tecnologies Department Supercomputing Group Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy www.cineca.it Tel: +39 051 6171722 g.fatig...@cineca.it
