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If you want a reservation, you write an email about the requirements
and deadlines, which then gets replied back with a schedule, times,
number of processors, time allocation, and a queue name. It is then up
to the respective individual to submit jobs to the right queue, which
will place the jobs in a hold state if its prior to the reservation
start time, and it will release them only when the reservation time is
reached. Job walltime needs to be set within the bounds of the
reservation (e.g. if the reservation is for 60 minutes, a job wall time
cannot be 70 minutes, if half way through a reservation that has 30
minutes left, one cannot submit a job for 40 minutes, even if a 40
minute job would have been accepted earlier in the reservation). <br>
<br>
Now, many people using Falkon and block allocation on the BG/P run
without any reservations. They simply submit their jobs to the
appropriate queue (not specific to the user, but specific to job
requirements), and once the jobs go through, the blocks get
instantiated, and the user uses the block allocation until it runs out
and it de-allocates itself. At that point, if the workload was not
complete, the user would manually invoke the block allocation again,
and let the workload continue where it left off earlier. And the
process would continue as long as there was work.<br>
<br>
Ioan<br>
<br>
Ben Clifford wrote:
<blockquote
cite="mid:Pine.LNX.4.64.0905250715020.23986@dildano.hawaga.org.uk"
type="cite">
<pre wrap="">On Sun, 24 May 2009, Mihael Hategan wrote:
</pre>
<blockquote type="cite">
<pre wrap="">PS: On the topic of static allocations, in people's experience, how does
one specify reservations on various resources?
</pre>
</blockquote>
<pre wrap=""><!---->
I've only done that by sending email to <a class="moz-txt-link-abbreviated" href="mailto:help@teragrid.org">help@teragrid.org</a>, which is a
relatively high latency and expensive operation.
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
===================================================
Ioan Raicu, Ph.D.
===================================================
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>
===================================================
===================================================
</pre>
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