Hi Jeff, sorry for the delay. When i have little time, i'll check OMPI trunck with bound checking. When is the deliver date of 1.3 version?
2008/6/20 Jeff Squyres <jsquy...@cisco.com>: > On Jun 19, 2008, at 11:47 AM, Gabriele Fatigati wrote: > > i didn't compile OpenMPI with bounds checking, but only my application. >> Problems with OMPI compiled with bound checking remains. >> > > Were you checking only with the OMPI 1.2 series? If so, is there a chance > you could test with the OMPI trunk? If we do have real bounds issues, it > would be good to get them cleared up. > > >> >> 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 _______________________________________________ >> users mailing list >> us...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/users >> > > > -- > 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
