On Fri, Nov 6, 2009 at 7:15 PM, Jeff Squyres wrote:
> On Nov 6, 2009, at 5:49 AM, Lee Amy wrote:
>
>> Thanks. And actually I don't know if I need to disable iptables to run
>> MPI programs properly. Obviously from your words Open MPI will use
>> random ports so how do I set up in iptables then let
On Nov 6, 2009, at 5:49 AM, Lee Amy wrote:
Thanks. And actually I don't know if I need to disable iptables to run
MPI programs properly. Obviously from your words Open MPI will use
random ports so how do I set up in iptables then let trusted machines
open their random ports?
I'm afraid I'm n
On Fri, Nov 6, 2009 at 2:39 AM, Jeff Squyres wrote:
> On Nov 5, 2009, at 11:28 AM, Lee Amy wrote:
>
>> I remembered MPI does not count on TCP/IP but why default iptables
>> will prevent the MPI programs from running? After I stop iptables then
>> programs run well. I use Ethernet as connection.
>>
On Nov 5, 2009, at 11:28 AM, Lee Amy wrote:
I remembered MPI does not count on TCP/IP but why default iptables
will prevent the MPI programs from running? After I stop iptables then
programs run well. I use Ethernet as connection.
Note that Open MPI *can* use TCP as an interface for MPI mess
Technically MPI Spec may not put a requirement on TCP/IP, however Open
MPI's runtime environment needs some way to launch jobs and pass data
around in a standard way and it currently uses TCP/IP. That being said
there have been rumblings for some time to use other protocols but that
has not ye
