[mvapich-discuss] Problem in running mpi processes on TCP/IP

[Matthew Koop]

Devesh,

In addition to specifying ibnode1 and ibnode2 in the mpd.hosts, can you
add --ifhn=ibnode1 to the mpdboot command (assuming you are starting
mpdboot on ibnode1).

mpdboot -n 2 --ifhn=ibnode1

Let us know if this helps. Thanks.

Matt

On Mon, 7 Apr 2008, Devesh Sharma wrote:

> Hello all,
>
> I am trying to run an MPI job beween two nodes using TCP/IP. The nodes
> consists of two different ethernet interfaces those are eth0 and ib0 (using
> ipoib)
> I want to run my job through ib0 interface, host-names for both the
> interfaces are different node1 and node2 for eth0 and ibnode1 and ibnode2
> for ib0,
> but when I run mpdboot by specifying ibnode1 and ibnode2 in the mdp.host
> file, mpdtrace shows
> node1 and node2 still!
> How can I select ib0 as communication interface?
>
> -Devesh
>