Re: [OMPI users] Open MPI data transfer error

2010-11-06 Thread Jed Brown
On Sat, Nov 6, 2010 at 18:00, Jack Bryan wrote: > Thanks, > > About my MPI program bugs: > > I used GDB and got the error: > > Program received signal SIGSEGV, Segmentation fault. > 0: 0x003a31c62184 in fwrite () from /lib64/libc.so.6 > Clearly fwrite was called

Re: [OMPI users] Open MPI data transfer error

2010-11-06 Thread Jack Bryan
Thanks, About my MPI program bugs: I used GDB and got the error: Program received signal SIGSEGV, Segmentation fault.0: 0x003a31c62184 in fwrite () from /lib64/libc.so.6 also error : 1: Program received signal SIGABRT, Aborted.0: I am rank 0, I have sent 4tasks out of total tasks1:

[OMPI users] Open MPI 1.5 is not detecting oversubscription

2010-11-06 Thread Jed Brown
Previous versions would set mpi_yield_when_idle automatically when oversubscribing a node. I assume this behavior was not intentionally changed, but the parameter is not being set in cases of oversubscription, with or without an explicit hostfile. Jed