[mpich-discuss] MPI_Win_fence memory consumption

[Dorian Krause]

Rajeev Thakur wrote:
> Does that happen only with Nemesis or even with ch3:sock?
>   

The behaviour is the same with the configure flag --with-device=ch3:sock.

Dorian

> Rajeev 
>
>   
>> -----Original Message-----
>> From: mpich-discuss-bounces at mcs.anl.gov 
>> [mailto:mpich-discuss-bounces at mcs.anl.gov] On Behalf Of Dorian Krause
>> Sent: Friday, February 27, 2009 7:16 AM
>> To: mpich-discuss at mcs.anl.gov
>> Subject: [mpich-discuss] MPI_Win_fence memory consumption
>>
>> Hi List,
>>
>> the attached test program uses MPI_Accumulate/MPI_Win_fence for one 
>> sided communication with derived datatype.
>> The program runs fine with mpich2-1.1a2 except for my 
>> debugging version 
>> of MPICH2 compiled with
>>
>> ./configure --with-device=ch3:nemesis --enable-g=dbg,mem,meminit
>>
>> In this case the MPI_Win_fence on the target side comuses 
>> about 90% of 
>> main memory (e.g. > 3 GB). As the behaviour is completely
>> different for predefined datatypes, I suspect that the memory 
>> consumption is related to the construction of the
>> derived datatype on the target side.
>>
>> Is there a workaround for this?
>>
>> Thanks + Best regards,
>> Dorian
>>
>>
>>
>>
>>
>>