Re: [Boost-users] [mpi] failed test and other issues

Subject: Re: [Boost-users] [mpi] failed test and other issues
From: Nick Collier (nick.collier_at_[hidden])
Date: 2009-06-12 14:16:54

What did you ultimately do? Go back to straight MPI, some other work  
around? I'm having issues with communicator::irecv and  
communicator::send now as well that I need to diagnose.

Nick

On Jun 12, 2009, at 3:39 AM, Alain Miniussi wrote:

> Hi,
>
> I'm not providing any help but FWIW, I got the same problem with
> trunk and OpenMpi 1.3.2 on Linux ubuntu 9.04.
> I also noticed a problem with all_reduce when in_values == out_values,
> openmpi 1.3.2 detect that MPI_IN_PLACE should be use. I diid not have
> that one with previous versions of OpenMpi, maybe that release detects
> more issues than the previous ?
>
> Regards,
>
> On Thu, 11 Jun 2009 18:13:10 +0200, Nick Collier <nick.collier_at_[hidden] 
> > wrote:
>
>> Hi,
>>
>> I'm using boost-1.39.0 with openMpi 1.3.2 on OSX 10.5.7. I'm  
>> getting some strange behavior when sending and receiving a vector  
>> of pointers between processes. The received pointer addresses are  
>> sometimes invalid. I'm not using the skeleton content code, just  
>> sending and receiving the vector. Some output:
>>
>> [2] processing edges from 1
>> [2] unpacking edge 0x834810
>> [2] unpacking edge 0x834810
>> [0] processing edges from 2
>> [0] unpacking edge 0x834ec0
>> [0] unpacking edge 0x834ec0
>> [2] processing edges from 3
>> [2] unpacking edge 0x8346c0
>> [2] unpacking edge 0x8346c0
>> [2] processing edges from 0
>> [2] unpacking edge 0x1
>> [2] unpacking edge 0x1
>>
>> The hex value is the pointer address, and obviously doing anything  
>> with the edge with the weird address causes the app to crash. I  
>> can't see that I'm doing anything wrong (although of course that's  
>> a possibility) and so I thought I'd run the boost mpi tests. The  
>> skeleton_content_test fails consistently with the following output:
>>
>> Broadcasting integer list skeleton from root 0...OK.
>> Broadcasting integer list content from root 0...OK.
>> Broadcasting reversed integer list content from root 0...OK.
>> ../../../boost/test/minimal.hpp(123): exception "memory access  
>> violation at address: 0x974bfd1c: non-existent physical address"  
>> caught in function: 'int main(int, char**)'
>>
>> **** Testing aborted.../../../boost/test/minimal.hpp(123):  
>> exception "memory access violation at address: 0x974bfd1c: non- 
>> existent physical address" caught in function: 'int main(int,  
>> char**)'
>>
>> **** Testing aborted.
>> **** 1 error detected
>> ../../../boost/test/minimal.hpp(123): exception "memory access  
>> violation at address: 0x974bfd1c: non-existent physical address"  
>> caught in function: 'int main(int, char**)'
>>
>> **** Testing aborted.
>> **** 1 error detected
>> ../../../boost/test/minimal.hpp(123): exception "memory access  
>> violation at address: 0x974bfd1c: non-existent physical address"  
>> caught in function: 'int main(int, char**)'
>>
>> **** Testing aborted.
>> **** 1 error detected
>> ../../../boost/test/minimal.hpp(123): exception "memory access  
>> violation at address: 0x974bfd1c: non-existent physical address"  
>> caught in function: 'int main(int, char**)'
>>
>> **** Testing aborted.
>> **** 1 error detected
>>
>> **** 1 error detected
>> ../../../boost/test/minimal.hpp(123): exception "memory access  
>> violation at address: 0x974bfd1c: non-existent physical address"  
>> caught in function: 'int main(int, char**)'
>>
>> **** Testing aborted.
>> **** 1 error detected
>>
>> I'm not sure if this is related to my problem but the memory issues  
>> made me wonder.
>>
>> Any help is appreciated,
>>
>> thanks,
>>
>> Nick
>>
>> _______________________________________________
>> Boost-users mailing list
>> Boost-users_at_[hidden]
>> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>>
>
>
>
> -- 
> Alain Miniussi                                      http://www.oca.eu/alainm
> Equipe CRIMSON                                 https://crimson.oca.eu
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