<div dir="ltr">Mark,<div><br></div><div>Hear-say by Review Panel members is not very useful to us, is it? Is that really any more than someone repeating what they heard? What would be genuinely helpful would be to be told what is better and replaces SRM, that is ready to go on the grid, and we do not have to go out and develop ourselves. I am on the dcache listserve, and this mailing list is lit up 24/7 with messages from tier-2 and tier-3 centers all over the globe who are actively running heavy workloads through dcache, with SRM being the gateway for most of the traffic.</div>
<div><br></div><div>I have heard people grouse about all sorts of tools (like Geant4 and root) that everyone knows are the best choices around for what they do, but can be frustrating nonetheless. I know SRM is not data-transport Nirvana, but we don't have the resources in GlueX to go out and develop the next thing that is a super-SRM. Wasting our time trying to force Globus Online into this role is going to be a rat-hole. I have seen SRM do what we need it to do, so I guess I am looking for a good reason to devote time to implementing something else -- besides that so-and-so said we might find or invent something better.</div>
<div><br></div><div>-Richard J.</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Feb 4, 2014 at 9:23 AM, Mark Ito <<a href="mailto:marki@jlab.org">marki@jlab.org</a>> wrote:<br>
<blockquote class="gmail_quote">
<div bgcolor="#FFFFFF" text="#000000">
From Sandy Philpott:<br>
<div><br>
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-------- Original Message --------
<table border="0" cellpadding="0" cellspacing="0">
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<th align="RIGHT" nowrap valign="BASELINE">Subject:
</th>
<td>Re: [Halld-offline] Data Challenge Meeting Minutes,
January 31, 2014</td>
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<th align="RIGHT" nowrap valign="BASELINE">Date: </th>
<td>Mon, 3 Feb 2014 16:58:51 -0500 (EST)</td>
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<tr>
<th align="RIGHT" nowrap valign="BASELINE">From: </th>
<td>Sandy Philpott <a href="mailto:philpott@jlab.org"><philpott@jlab.org></a></td>
</tr>
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<th align="RIGHT" nowrap valign="BASELINE">To: </th>
<td>Mark Ito <a href="mailto:marki@jlab.org"><marki@jlab.org></a></td>
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<pre>Hi Mark,
As discussed...
IT/SciComp is ready for the Hall D data challenge. When we get your test
description details -- rates to/from tape, disk requirements, timeframe, etc,
we'll flip the farm nodes in HPC back to the farm, along with the 12s nodes
needed to get 2250 cores total in the cluster, so that Hall D will be able to
run 1250 cores with other jobs running. The nodes to be moved from HPC will have
to drain jobs, which can take up to 48 hours. We want to make sure you are
ready to run when we do it so that we don't waste CPUs sitting idle.
There's no SRM ability at JLab, and recall from the review that reviewers
suggested GlueX consider something besides SRM. At one point in 2010 Curtis
had firewall openings via our Cyber group for client tools installed
in user space on the ifarm nodes; check with Greg and company on that status
if still needed, as network configs for ifarms have undergone changed since then.
IT supports Globus Online for offsite data transfers using the site's 10 gigabit
pipe; info available at <a href="https://scicomp.jlab.org/docs/?q=node/11">https://scicomp.jlab.org/docs/?q=node/11</a>
Let us know when you're ready to run and what you need, then let the
node flipping and data challenge begin. I understand from today's discussion
you expect the timeframe to be sometime near the end of February. Note that
the farm is currently almost idle at this point, so you shouldn't have any
trouble getting test jobs and prototypes started in the meantime.
Regards,
Sandy
----- Original Message -----
From: "Mark Ito" <a href="mailto:marki@jlab.org"><marki@jlab.org></a>
To: "GlueX Offline Software Email List" <a href="mailto:halld-offline@jlab.org"><halld-offline@jlab.org></a>
Sent: Monday, February 3, 2014 1:05:43 PM
Subject: [Halld-offline] Data Challenge Meeting Minutes, January 31, 2014
...
9. Is the JLab CC ready for us?
+ Mark will talk to Sandy about our plans.
10. What ability will we have for SRM at Jefferson Lab?
+ Mark will talk to Sandy about the status of the system.
...
</pre>
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</div>
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</div>
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