Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Open MPI User's mailing list

Subject: Re: [OMPI users] Segmentation fault - Address not mapped
From: Catalin David (catalindavid2003_at_[hidden])
Date: 2009-07-06 09:24:24

On Mon, Jul 6, 2009 at 2:14 PM, Dorian Krause<doriankrause_at_[hidden]> wrote:
> Hi,
>> //Initialize step
>> MPI_Init(&argc,&argv);
>> //Here it breaks!!! Memory allocation issue!
>> MPI_Comm_size(MPI_COMM_WORLD, &pool);
>> std::cout<<"I'm here"<<std::endl; //this statement is never reached
>> MPI_Comm_rank(MPI_COMM_WORLD, &myid);
>> When trying to debug via gdb, the problem seems to be:
>> Program received signal SIGSEGV, Segmentation fault.
>> 0xb7524772 in ompi_comm_invalid (comm=Could not find the frame base
>> for "ompi_comm_invalid".) at communicator.h:261
>> 261     communicator.h: No such file or directory.
>>        in communicator.h
>> which might indicate a problem with paths. For now, my LD_LIBRARY_PATH
>> is set to "/users/cluster/cdavid/local/lib/" (the local folder in my
>> home folder emulates the directory structure of the / folder).
> and your PATH is also okay? (I see that you use plain mpicxx in the build)
> ...

Hi again!

This is the output of some commands in the terminal:

cdavid_at_denali:~$ which mpicxx
cdavid_at_denali:~$ echo $PATH
cdavid_at_denali:~$ echo $LD_LIBRARY_PATH
cdavid_at_denali:~$ locate communicator.h

I don't see anything wrong with the path (I added the first part in
order to make it look there first). I even tried adding
"-L/users/cluster/cdavid/local/lib -lmpi
-I/users/cluster/cdavid/local/include" to the compiler invocation, in
hope of an improvement. So far, nothing.



Catalin David
B.Sc. Computer Science 2010
Jacobs University Bremen
Phone: +49-(0)1577-49-38-667
College Ring 4, #343
Bremen, 28759