Am 29.11.2012 um 20:18 schrieb Tim Gallagher:

I have a Fortran application that uses MPI_Comm_Spawn. When I run with it compiled using gfortran/gcc (and mpich compiled with gfortran/gcc), it just hangs forever. When I run with it compiled using ifort/icc (and mpich compiled with ifort/icc), it runs correctly.

When I run it in GDB with the GNU compiler suite and interrupt it once it's stuck, it tells me:

Program received signal SIGINT, Interrupt. 0x00007ffff7800fc9 in pmpi_comm_spawn__ () from /opt/mpi/mpich/gnu/system/lib64/libmpich.so.8

and this is with both mpich 1.4 and 1.5.

Did you compile MPICH2 on your own and set the LD_LIBRARY_PATH correctly? In 1.4.1p1 I have only libmpich.so.3.3 and so I assume the libmpich.so.8 is a one from your installation? IIRC by default MPICH2 generates static libs. -- Reuti

Does anybody have any suggestions for what could be going on? It really just sits there, doing absolutely nothing, forever. No timeouts, no errors or warnings. I'm not ruling out a bug in my codes, but I don't even know where to begin.

Thanks,

Tim _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss