IIRC, Ubuntu has a firewall setup by default. Try this:
% sudo ufw status
-- Pavan
On 06/27/2013 09:48 PM, Syed. Jahanzeb Maqbool Hashmi wrote:
* *Can you ssh from "node01" to "node02"?*
As I already read some discussion on the mpich thread and I came to know
these questions before:
* *Make sure the firewalls are turned off on all machines.*
Yes I have passwordless ssh from each node to other (and vice versa)
I am using Ubuntu Linaro, 12.04, and I have no firewall installed on
all the nodes.
Any other workaround :(
On Fri, Jun 28, 2013 at 11:43 AM, Pavan Balaji <balaji@mcs.anl.gov<mailto:balaji@mcs.anl.gov>> wrote:http://wiki.mpich.org/mpich/__index.php/Frequently_Asked___Questions#Q:_My_MPI_program___aborts_with_an_error_saying___it_cannot_communicate_with___other_processes
On 06/27/2013 09:41 PM, Syed. Jahanzeb Maqbool Hashmi wrote:
MPID_nem_tcp_connpoll(1826): Communication error with rank 0:
Connection
refused
Sounds like a firewall problem.