[libvirt-users] Libvirt mpiexec networking issue

[Shawn Furrow]

Hi again,

I guess I should specify my current network setup. I used the default
network settings and both of the VMs include the following in their XML
configuration files:

<interface type='network'>
      <mac address='52:54:00:2f:a5:58'/>
      <source network='default'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
</interface>

Also, when I do ifconfig on the guest VMs I just get an eth0 and an lo
interface. (I have seen on the Libvirt networking pages something about the
virbr0 interface but I'm not sure if that is what I need or how to set it
up)

Thanks in advance for your help.

Shawn


On Fri, Oct 12, 2012 at 8:53 AM, Shawn Furrow <sfurrow at vt.edu> wrote:

> Hi all,
>
> Not sure if this is the best place to put this question since I'm not sure
> if it's a Libvirt issue but...
>
> I currently have two VMs up with networking and I can successfully ssh to
> and from each VM and I have confirmed that I can successfully download
> things from the internet. However, when trying to run mpiexec (which uses
> ssh), the connection fails and gives me the following errors:
>
> [proxy:0:0 at guestVM] HYDU_sock_connect (./utils/sock/sock.c:188): unable
> to connect from "guestVM" to "guestVM" (Connection refused)
> [proxy:0:0 at guestVM] main (./pm/pmiserv/pmip.c:205): unable to connect to
> server guestVM at port 56514 (check for firewalls!)
>
> Just so it is clear, I know that the two guests host names are the same
> (they are clones) but I am giving explicit IP address for the connection so
> it should not be an issue. Does any one know if there is something unique
> with how Libvirt networking is set up that would cause such an error? I
> have tried checking for firewalls and there don't seem to be any.
>
> Thanks,
> Shawn
>
> --
> Virginia Tech
> Bradley Department of Electrical and Computer Engineering
> B.S. Electrical Engineering
> B.S. Computer Engineering
>
>


-- 
Virginia Tech
Bradley Department of Electrical and Computer Engineering
B.S. Electrical Engineering
B.S. Computer Engineering
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