[mpich-discuss] MPI_Get on the same memory location

[Alessandro Fanfarillo]

Thanks, I will suggest a temporary workaround to apply in the coarray program.

On Fri, Aug 22, 2014 at 5:20 PM, Balaji, Pavan <balaji at anl.gov> wrote:
>
> Sorry, I was wrong, there’s no runtime option to disable this.  There’s only a runtime option to disable a similar check for collective operations.
>
>   — Pavan
>
> On Aug 22, 2014, at 5:18 PM, Alessandro Fanfarillo <fanfarillo at ing.uniroma2.it> wrote:
>
>> Could you tell me which flag disables the check? I would suggest this
>> procedure as temporary workaround.
>>
>> Thanks
>>
>> On Fri, Aug 22, 2014 at 2:41 PM, Balaji, Pavan <balaji at anl.gov> wrote:
>>>
>>> On Aug 22, 2014, at 1:43 PM, Brian Van Straalen <bvstraalen at lbl.gov> wrote:
>>>> Is there a significant cost to have the MPI implementation provide a check for aliasing?
>>>
>>> We do check for this error by default in MPICH (which is why this email thread started).
>>>
>>> There’s a way to turn off the checking through a configure flag as well as an environment variable, if needed.  But that’s essentially saying — I know it’s wrong, but I’m too lazy to fix my application.
>>>
>>>  — Pavan
>>>
>>> --
>>> Pavan Balaji  ✉️
>>> http://www.mcs.anl.gov/~balaji
>>>
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>>
>>
>>
>> --
>>
>> Alessandro Fanfarillo
>> Dip. di Ingegneria Civile ed Ingegneria Informatica
>> Università di Roma "Tor Vergata"
>> NCAR Office: +1 (303) 497-2442
>> Tel: +39-06-7259 7719
>> _______________________________________________
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>
> --
> Pavan Balaji  ✉️
> http://www.mcs.anl.gov/~balaji
>
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-- 

Alessandro Fanfarillo
Dip. di Ingegneria Civile ed Ingegneria Informatica
Università di Roma "Tor Vergata"
NCAR Office: +1 (303) 497-2442
Tel: +39-06-7259 7719