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It seems important that Ioan sit down with Mihael and work through the
Falkon code to see where it can be simplified, improved, etc. I am sure
that this will result in problems being identified and fixed that will
otherwise cost us time later.<br>
<br>
Mihael Hategan wrote:
<blockquote cite="mid:1182006166.11495.1.camel@blabla.mcs.anl.gov"
type="cite">
<pre wrap="">Yourkit (<a class="moz-txt-link-abbreviated" href="http://www.yourkit.com">www.yourkit.com</a>) has free licenses for open source projects for
their profiler. Point them to a globus web page that has your name, and
they'll send you the license. Alternatively, there are other profilers
out there, and I strongly recommend using them on such issues.
Mihael
On Sat, 2007-06-16 at 10:00 -0500, Ioan Raicu wrote:
</pre>
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<pre wrap="">Nope, I think this is a different problem, or at least a subset of the
problems we were having before.
Since we fixed the CPU utilization, and we moved to a bigger box (4
CPUs with 2GB of memory), everything is happening in a timely fashion
(a few ms per notification delivery throughout the experiment). Plus,
I believe the view is consistent (the same tasks look complete on both
ends) between Falkon and Swift, but we are still checking on this as
the run was made just last night for the 100 mol run. We'll keep you
posted with what we find.
Ioan
Ben Clifford wrote:
</pre>
<blockquote type="cite">
<pre wrap="">On Sat, 16 Jun 2007, Ioan Raicu wrote:
</pre>
<blockquote type="cite">
<pre wrap="">having problems with the 100 molecule run in MolDyn. Its not clear where the
problem is, on the surface Falkon looks fine... we are looking into where
everything breaks to cause Swift to not continue with the workflow to
completion!
</pre>
</blockquote>
<pre wrap="">The same problem that you showed me the other day or different?
with 'the same problem' being that falkon thinks all the jobs are done;
but that falkon's measure response time for sending completion
notifications gets approximately linearly longer over time and the swift
JVM uses ~100% and doesn't inidicate job completion at all after a certain
period.
or different symptoms now?
</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>
============================================
============================================
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</blockquote>
<pre wrap=""><!---->
</pre>
</blockquote>
<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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