[mpich-discuss] mpich hangs

[Pavan Balaji]

% sudo /usr/sbin/ufw status

On 06/27/2013 09:52 PM, Syed. Jahanzeb Maqbool Hashmi wrote:
> Yes thats what I did before and found out this to be exact:
> "sudo: ufw: command not found"
>
>
> On Fri, Jun 28, 2013 at 11:50 AM, Pavan Balaji <balaji at mcs.anl.gov
> <mailto:balaji at mcs.anl.gov>> wrote:
>
>
>     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:
>
>
>         As I already read some discussion on the mpich thread and I came
>         to know
>         these questions before:
>
>            * *Can you ssh from "node01" to "node02"?*
>
>              Yes I have passwordless ssh from each node to other (and
>         vice versa)
>            * *Make sure the firewalls are turned off on all machines.*
>
>              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 at mcs.anl.gov <mailto:balaji at mcs.anl.gov>
>         <mailto:balaji at mcs.anl.gov <mailto:balaji at mcs.anl.gov>>> wrote:
>
>
>              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.
>
>         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
>         <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>
>
>
>         <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
>         <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>>
>
>
>                -- Pavan
>
>              --
>              Pavan Balaji
>         http://www.mcs.anl.gov/~balaji
>
>
>
>     --
>     Pavan Balaji
>     http://www.mcs.anl.gov/~balaji
>
>

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji