I can write something up and send it to David to add somewhere for the userguide. Not sure where the files for the userguide are kept.<br><br><div class="gmail_quote">On Thu, Jun 2, 2011 at 3:08 PM, Michael Wilde <span dir="ltr"><<a href="mailto:wilde@mcs.anl.gov">wilde@mcs.anl.gov</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Thanks for clarifying. Jon and/or David, can you address this with a cookbook entry on Coasters that heads towards a users guide section?<br>
<br>
We should tell users what they can run on their cluster (eg ping or telnet-style connect tests) to validate the setting of internalHostName.<br>
<br>
- Mike<br>
<div><div></div><div class="h5"><br>
<br>
<br>
----- Original Message -----<br>
> Right. If the head node has multiple network interfaces, only one of<br>
> which is visible from the worker nodes.<br>
><br>
> The choice of which interface is the one that worker nodes can connect<br>
> to is a matter of the particular cluster. It's not particularly easy<br>
> to<br>
> have an automated mechanism that figures it out. We tried some scheme<br>
> to<br>
> pass all the interface addresses to the worker and let it try to<br>
> connect<br>
> to all of them in order, but that didn't work very well. Of course,<br>
> there might be a scheme that works, but I didn't want to spend too<br>
> much<br>
> time on that.<br>
><br>
> So that's why it's needed. To clarify to the workers which exact<br>
> interface on the head node they are to try to connect to.<br>
><br>
> Mihael<br>
><br>
> On Thu, 2011-06-02 at 14:10 -0500, Jonathan S Monette wrote:<br>
> > Mihael,<br>
> > I believe we have talked about this before but why is it<br>
> > necessary<br>
> > for an InternalHostname to be specified for PADS? I know that the<br>
> > address that coasters connects to is wrong but I do not remember why<br>
> > that was. Could you give an explanation on why internalHostname<br>
> > needs<br>
> > to be set?<br>
> ><br>
> > --<br>
> ><br>
> ><br>
> > Any intelligent fool can make things bigger and more complex... It<br>
> > takes a touch of genius - and a lot of courage to move in the<br>
> > opposite<br>
> > direction.<br>
> ><br>
> > - Albert Einstein<br>
> ><br>
> ><br>
> ><br>
><br>
><br>
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<font color="#888888"><br>
--<br>
Michael Wilde<br>
Computation Institute, University of Chicago<br>
Mathematics and Computer Science Division<br>
Argonne National Laboratory<br>
<br>
</font></blockquote></div><br><br clear="all"><br>-- <br>
<p>Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction.</p>
<p>- Albert Einstein</p><br>