Vector containing one number

[Berend van Wachem]

Hi Barry,

A small test here confirms your suspicion. I switched back to MPICH, 
which works without errors, but which has no support under eclipse 
unfortunately.

Thanks,

Berend.

>   This routine does make sends and receives of length zero;
> this is legal in MPI but possibly Open-MPI has bugs dealing with
> this.
>
>    Barry
>
> On Fri, 19 Jan 2007, Berend van Wachem wrote:
> > Hi,
> >
> > valgrind shows something related to open-mpi, see below. I'll try
> > mpich to see if the problem goes away.
> >
> > Thanks,
> > Berend.
> >
> >
> > ==3683== Syscall param writev(vector[...]) points to uninitialised
> > byte(s)
> > ==3683==    at 0x543A607: writev (in /lib64/tls/libc-2.3.6.so)
> > ==3683==    by 0x5BE0AEA: mca_oob_tcp_msg_send_handler
> > (in /usr/local/lib/openmp
> > i/mca_oob_tcp.so)
> > ==3683==    by 0x5BE1827: mca_oob_tcp_peer_send
> > (in /usr/local/lib/openmpi/mca_o
> > ob_tcp.so)
> > ==3683==    by 0x5BE5B93: mca_oob_tcp_send_nb
> > (in /usr/local/lib/openmpi/mca_oob
> > _tcp.so)
> > ==3683==    by 0x4B47DBD: _orte_iof_base_frag_ack
> > (in /usr/local/lib/liborte.so.
> > 0.0.0)
> > ==3683==    by 0x4B47639: orte_iof_base_endpoint_forward
> > (in /usr/local/lib/libo
> > rte.so.0.0.0)
> > ==3683==    by 0x6D45538: orte_iof_svc_proxy_recv
> > (in /usr/local/lib/openmpi/mca
> > _iof_svc.so)
> > ==3683==    by 0x5BE137A: mca_oob_tcp_msg_recv_complete
> > (in /usr/local/lib/openm
> > pi/mca_oob_tcp.so)
> > ==3683==    by 0x5BE2D18: mca_oob_tcp_peer_recv_handler
> > (in /usr/local/lib/openm
> > pi/mca_oob_tcp.so)
> > ==3683==    by 0x4C7E466: opal_event_loop
> > (in /usr/local/lib/libopal.so.0.0.0)
> > ==3683==    by 0x4C78A55: opal_progress
> > (in /usr/local/lib/libopal.so.0.0.0)
> > ==3683==    by 0x4030AF: opal_condition_wait (condition.h:81)
> > ==3683==  Address 0x41CF348 is not stack'd, malloc'd or (recently)
> > free'd