Hi Reuti,

I have done what you suggested and it WORKS with the wireless off

lcebaman@mac~/$  mpiexec -iface lo0 -n 4 ./hello
Hello world from process 0 of 4
Hello world from process 3 of 4
Hello world from process 1 of 4
Hello world from process 2 of 4

What is the problem here then?

Cheers,
Luis
On 3 Mar 2014, at 14:54, Reuti <reuti@staff.uni-marburg.de> wrote:

Am 03.03.2014 um 11:29 schrieb Luis Cebamanos:

I have also noticed that working without any internet connection does not work either.

Just for curiosity:

$ mpiexec -iface lo0 -n 4 ./foo

-- Reuti

On 3 Mar 2014, at 09:53, Luis Cebamanos <l.cebamanos@epcc.ed.ac.uk> wrote:

Hi there,

I’ve got more news. The last IP that I showed in my last email it turns out that works OKAY, however now that I am back to the office and working on the wireless, it does not work. And that is the result of nslookup:

lcebaman@mac~/Projects/SPRINT$ nslookup localhost
Server: 129.215.205.191
Address: 129.215.205.191#53

Name: localhost.ed.ac.uk
Address: 127.0.0.1

lcebaman@mac~/Projects/SPRINT$ nslookup mac
Server: 129.215.205.191
Address: 129.215.205.191#53

** server can't find mac: NXDOMAIN

Any thoughts?

Cheers,
Luis

On 1 Mar 2014, at 19:40, l.cebamanos <l.cebamanos@epcc.ed.ac.uk> wrote:

Well, is not fixed. Its just the one I got here, but it changes. Any ideas of how to fix this?

-------- Original message --------
From: Reuti <reuti@staff.uni-marburg.de>
Date:01/03/2014  17:38  (GMT+00:00)
To: discuss@mpich.org
Subject: Re: [mpich-discuss] MPID_nem_tcp_init(377)... gethostbyname failed,
mac (errno 1)

Am 01.03.2014 um 17:58 schrieb Luis Cebamanos:

Here it is the output of those commands:

lcebaman@mac~/$ nslookup localhost
Server: 192.168.1.1
Address: 192.168.1.1#53

Name: localhost
Address: 127.0.0.1

lcebaman@mac~/$ nslookup mac
Server: 192.168.1.1
Address: 192.168.1.1#53

Name: mac
Address: 192.168.1.127

Is this a fixed address you get everytime? You could add it to /etc/hosts.

Interesting that MPICH throws an error about resolving "mac", although DNS is working.

-- Reuti

lcebaman@mac~/$ hostname
mac




On 28 Feb 2014, at 23:35, Reuti <reuti@staff.uni-marburg.de> wrote:

Am 28.02.2014 um 14:39 schrieb Luis Cebamanos:

Hi Pavan,

Yes, that is the output:

$ cat /etc/hosts
##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting.  Do not change this entry.
##
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1             localhost
fe80::1%lo0 localhost

What is the output of:

$ nslookup localhost
$ nslookup mac
$ hostname

AFAICS your machine has no domainname, otherwise it would show up in the MPICH error message after "mac".

-- Reuti

On 28/02/14 13:35, Balaji, Pavan wrote:

$ cat /etc/hosts

##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting.  Do not change this entry.
##
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1             localhost
fe80::1%lo0 localhost

--
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