[mpich-discuss] mpich hangs

[Syed. Jahanzeb Maqbool Hashmi]

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> 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>> 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
>
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