<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
I mentioned 2 throttling mechanisms, one is to have X outstanding jobs
at any given time (limits jobs in the queue), and Y jobs/sec<br>
submit rate (limits the rate of submission). I believe both of these
throttling mechanisms could exist without computing site scores,
assuming the user knows what to set X and Y to.<br>
<br>
Ioan<br>
<br>
Mihael Hategan wrote:
<blockquote cite="mid:1193588147.15017.2.camel@blabla.mcs.anl.gov"
type="cite">
<pre wrap="">On Sun, 2007-10-28 at 10:25 -0500, Ioan Raicu wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Assuming you have a single site to submit to, then I don't see why you
don't want to disable the site scoring altogether?
</pre>
</blockquote>
<pre wrap=""><!---->
Because having too many jobs on that one site may still cause problems.
That said, the algorithm currently there needs some work.
</pre>
<blockquote type="cite">
<pre wrap=""> Of course you still want throttling, but that is more on the level
of X outstanding jobs at any given time (and possibly Y jobs/sec
submit rate), so you don't overrun the LRM, but you would not want to
lower X to some low value just because some jobs are failing. Again,
once you go to multi-site runs, you need the site scoring to decide
among the different sites, but with a single site, I see no drawbacks
to disabling the site scoring mechanism.
Ioan
Ben Clifford wrote:
</pre>
<blockquote type="cite">
<pre wrap="">On Sun, 28 Oct 2007, Ioan Raicu wrote:
</pre>
<blockquote type="cite">
<pre wrap="">they were due to the stale NFS handle error. I think Mihael outlined in an
email a while back how to disable the task submission throttling due to a bad
score, assuming that you have a single site to submit to anyways.
</pre>
</blockquote>
<pre wrap="">I know how to disable it. I don't particularly want it running rate free.
Whats happening here is that the feedback loop feeding back too much / too
fast for the situation I experience.
There's plenty of fun to be had experimenting there; and I suspect there
will be no One True Rate Controller.
</pre>
</blockquote>
<pre wrap="">--
============================================
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>
============================================
============================================
_______________________________________________
Swift-devel mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Swift-devel@ci.uchicago.edu">Swift-devel@ci.uchicago.edu</a>
<a class="moz-txt-link-freetext" href="http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel">http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel</a>
</pre>
</blockquote>
<pre wrap=""><!---->
</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>
============================================
============================================</pre>
</body>
</html>