On Mon, Jul 6, 2009 at 2:14 PM, Dorian Krause<doriankra...@web.de> 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@denali:~$ which mpicxx ~/local/bin/mpicxx cdavid@denali:~$ echo $PATH /users/cluster/cdavid/local/bin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin:/opt/scali/bin:/opt/scali/sbin:/opt/scali/contrib/pbs/bin:/users/cluster/cdavid/bin cdavid@denali:~$ echo $LD_LIBRARY_PATH /users/cluster/cdavid/local/lib/ cdavid@denali:~$ locate communicator.h cdavid@denali:~$ 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. Regards, Catalin -- ****************************** Catalin David B.Sc. Computer Science 2010 Jacobs University Bremen Phone: +49-(0)1577-49-38-667 College Ring 4, #343 Bremen, 28759 Germany ******************************
