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If a LRM can be configured by the virtual workspace service as part of
the VMs, then its even easier for Falkon to work! I don't see an LRM
as being central and necessary though, as when the VM starts up, we
could easily bootstrap the Falkon executors to start up and live
forever (or at least while the VM is running). We could host the
disptacher off-site, or even on another EC2 VM... it all depends on how
much the latency seems to affect Falkon performance. <br>
<br>
I assume that EC2 VMs have a public IP space that is not behind some
site-wide firewall, right? If not, then this could be a problem.<br>
<br>
Ioan<br>
<br>
Ben Clifford wrote:
<blockquote
cite="mid:Pine.LNX.4.64.0705160902110.20212@dildano.hawaga.org.uk"
type="cite">
<pre wrap="">
On Wed, 16 May 2007, Ian Foster wrote:
</pre>
<blockquote type="cite">
<pre wrap="">If we configure the virtual cluster with a full LRM, as you propose (and
it seems have already done--great work!), then we can use this to start
Falkon executors--as we do today on regular clusters. So it seems to me
that we have all we need. How about you and Ioan spend your time on
Thursday running something on EC2, to make sure it sorks?
</pre>
</blockquote>
<pre wrap=""><!---->
</pre>
<blockquote type="cite">
<pre wrap="">Regarding choice of LRM: have you looked at SGE? That is what quite a
few others seem to be using.
</pre>
</blockquote>
<pre wrap=""><!---->
That's probably a bunch of most unnecessary extra weight (== trouble) if
the images are specifically intended for use as swift+falkon. But useful
to have round if people want to do other things too.
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
============================================
Ioan Raicu
Ph.D. Student
============================================
Distributed Systems Laboratory
Computer Science Department
University of Chicago
1100 E. 58th Street, Ryerson Hall
Chicago, IL 60637
============================================
Email: <a class="moz-txt-link-abbreviated" href="mailto:iraicu@cs.uchicago.edu">iraicu@cs.uchicago.edu</a>
Web: <a class="moz-txt-link-freetext" href="http://www.cs.uchicago.edu/~iraicu">http://www.cs.uchicago.edu/~iraicu</a>
<a class="moz-txt-link-freetext" href="http://dsl.cs.uchicago.edu/">http://dsl.cs.uchicago.edu/</a>
============================================
============================================
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