I'm afraid that we've never tested OMPI under these conditions; I don't know exactly what xgcc is testing for, so I don't know why it would fail. There could be weird interactions between the OFED stack and xgcc...? (i.e., memory "appears" from the kernel via ibv_* function calls, etc.)
On Jun 14, 2008, at 7:58 AM, Gabriele Fatigati wrote:
g.fatigati@cineca.it _______________________________________________Hi Open MPI developers,
I compiled OpenMPI 1.2.6 with xgcc, a gcc version with bounds-checking support. But i have a problem with a simply MPI application compiled with -fbounds-checking flags.
The job doesn't works and it is locked to MPI_Init(), doing nothing. It is a very strange behaviour. I tried to increase various Infiniband timeout, like btl_openib_ib_timeout, orte_abort_timeout and btl_openib_ib_min_rnr_timer without results.
Thanks in advance.
--
Gabriele Fatigati
CINECA Systems & Tecnologies Department
Supercomputing Group
Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy
www.cineca.it Tel: +39 051 6171722
users mailing list
users@open-mpi.org
http://www.open-mpi.org/mailman/listinfo.cgi/users
--
Jeff Squyres
Cisco Systems
_______________________________________________
users mailing list
users@open-mpi.org
http://www.open-mpi.org/mailman/listinfo.cgi/users