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Ben:<br>
<br>
I feel strongly that we should be focusing our scarce development
resources on problems that we have documented via user experience. That
means we need that performance monitoring infrastructure in Swift ...<br>
<br>
I do think that data movement and caching are likely to become
important issues. But it would be good to know when/how exactly they do.<br>
<br>
Mike mentioned that he thought Nika's MolDyn code had some workaround
in it to reduce data movement, introduced because of a lack of caching
support. Does anyone know about that?<br>
<br>
Ian.<br>
<br>
Ben Clifford wrote:
<blockquote
cite="mid:Pine.LNX.4.64.0707242153130.26516@dildano.hawaga.org.uk"
type="cite">
<pre wrap="">Not numerical data. I just recall it being something that we ISI sysadmin
people used to laugh about as people had VDS moving data all over the
place unnecessarily within the ISI network whilst they complained that
there wasn't enough space in one particular space or that ftp servers
weren't coping.
On Tue, 24 Jul 2007, Ian Foster wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Do we have data that show this to be a problem?
Ben Clifford wrote:
</pre>
<blockquote type="cite">
<pre wrap="">On Tue, 24 Jul 2007, Mihael Hategan wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Can you be more specific on what bottlenecks we're trying to avoid?
</pre>
</blockquote>
<pre wrap="">pumping all the data for the workflow through one ethernet card and CPU.
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</blockquote>
<pre wrap="">
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</blockquote>
<pre wrap=""><!---->
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<br>
<pre class="moz-signature" cols="72">--
Ian Foster, Director, Computation Institute
Argonne National Laboratory & University of Chicago
Argonne: MCS/221, 9700 S. Cass Ave, Argonne, IL 60439
Chicago: Rm 405, 5640 S. Ellis Ave, Chicago, IL 60637
Tel: +1 630 252 4619. Web: <a class="moz-txt-link-abbreviated" href="http://www.ci.uchicago.edu">www.ci.uchicago.edu</a>.
Globus Alliance: <a class="moz-txt-link-abbreviated" href="http://www.globus.org">www.globus.org</a>.
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