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Subject: Re: [OMPI users] OpenMPI with bounds checking
From: Gabriele Fatigati (g.fatigati_at_[hidden])
Date: 2008-06-17 10:42:19


Hi Jeff,
i compiled OpenMPi using xgcc 4.0.2. I noted that the program stops before
to do process spawn.
Very strange.

2008/6/17 Jeff Squyres <jsquyres_at_[hidden]>:

> 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:
>
> 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
>>
>> g.fatigati_at_[hidden] _______________________________________________
>> users mailing list
>> users_at_[hidden]
>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>
>
>
> --
> Jeff Squyres
> Cisco Systems
>
> _______________________________________________
> users mailing list
> users_at_[hidden]
> 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.fatigati_at_[hidden]