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Ben Clifford wrote:
<blockquote
cite="mid:Pine.LNX.4.64.0803242021160.28951@dildano.hawaga.org.uk"
type="cite">
<pre wrap="">On Mon, 24 Mar 2008, Ioan Raicu wrote:
</pre>
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<pre wrap="">start completing, and new ones get dispatched. At around 132 seconds, the
wait queue is empty, and some workers start becoming idle (the red area)... by
</pre>
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<pre wrap=""><!---->
Ideally swift would be keeping the queue full until there is nothing left
to send. There shouldn't be two distinct 600 and 400 job bursts. But I
guess that may be because the job throttling isn't set to a large enough
infinity.
</pre>
</blockquote>
Its not the throttling... Swift sent all 1000 tasks at once (all within
the first 10 seconds). There were 600 workers running on 600 CPUs, so
600 (of the 1000) tasks went from the wait queue to the running state,
and there were 400 tasks left in the wait queue. After some time, the
first round of tasks (the first 600) completed and the second round of
tasks (400) went from the wait queue to the running state. So, the two
distinct rounds, 600 then 400 is because of the 600 CPUs and 1000 total
tasks... <br>
<br>
Ioan<br>
<br>
<br>
<pre class="moz-signature" cols="72">--
===================================================
Ioan Raicu
Ph.D. Candidate
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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://dev.globus.org/wiki/Incubator/Falkon">http://dev.globus.org/wiki/Incubator/Falkon</a>
<a class="moz-txt-link-freetext" href="http://dsl-wiki.cs.uchicago.edu/index.php/Main_Page">http://dsl-wiki.cs.uchicago.edu/index.php/Main_Page</a>
===================================================
===================================================
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