ATLAS SCCS Planning 27Sep2006
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9am, SCCS Conf Rm A, to call in +1 510 665 5437, press 1, 3935#
Present: Stephen, Charlie, Steffen, Chuck, JohnB, Randy, Booker
Agenda:
1. DQ2 Status/Web Proxy
Talked about running web on default ports. This would mean
privileged access. Perhaps not a good idea after all. Needs some
thought.
Deployed a new version of the cleanup script. Has cleaned up a lot
more than the previous version. Main difference is that it uses the
time in the database instead of the filesystem.
2. Slots for ATLAS Production jobs and other batch related stuff
Trying to reexamine the way fair-shares are given out overall. This
will be mapped more to what the groups have contributed to the
pool. Puts ATLAS in an disadvantaged position as it hasn't contributed
yet. However, expect to place an order soon, after the end of the
FY. Expected the money to arrive mid-September. We should start
getting quotes right around now. Rough computation was 9 10TB file
servers and 52 4-core 4GB nodes. This was 1/3 storage and 2/3
CPU. Might be part of a bigger order with KIPAC. They want 8GB and
16GBs in some nodes. The ATLAS requirement is 2GB per core should
consider getting more memory. There is also memory bandwidth
benefits from only filling half the slots, the new machines have 16
slots so with 8 1GB DIMMS have half empty. Can get a quote both
ways to help decide which way to go. Not sure it will be in time
for next week and following week will not be well attended, so may
circulate in email. With the price KIPAC is quoted would mean 38
nodes. Need to see the quotes to be sure of the numbers, not clear
now if the 52 nodes was a correct number.
3. AOB
- Tier 2 web page
Is it ready to go? Think so, its up.
Web page has batch queue information (how long is a SLAC second
and which queues have what limit?)? Don't know of one. Stephen
will write one.
Action Items:
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060927 Stephen Write web page with description of SLAC batch system
060920 Stephen Find out if DQ2 clean up will delete files from users
060927 Users need to set the archive flag to ensure it stays.
060906 Stephen Find out if DQ2 can use standard web ports.
060927 Seems it would be not expert answer, also worried more
about the security of it.
060906 Stephen Find out what the load is for existing US mirrors.
060927 No information found. Give up on this till we think we
might actually do it.
060906 Wei Discuss ATLAS pacman mirror with other Tier-2s.
060913 Defer to advisory board.
060920 Not sure when the next meeting is.
060927 Give up on this one too just now.
060830 Stephen Talk more to DavidQ about validation.
060906 No news.
060927 Would welcome any help. Done.
060830 Richard Talk to Gregory about "getting" disk
060906 Did try but not managed yet.
060920 Trying to get together tomorrow to talk about it.
060927 Don't know the status.
060816 Wei Setup ATLAS/SLAC Web page
060823 Wei circulated a not try to bring back comments for next
week.
060830 First draft up.
060906 Updated from various comments. Would like to use a
better looking page. Need to find somewhere to put it
also.
060913 Want to look at plone. Talk to Ruth McDunn about AFS space.
090920 No progress.
090927 Setup on URL wt2.slac.stanford.edu. Done.
060816 Chuck Check with Bob about web server approval need
060823 To be done.
060830 To be done.
060906 Gary believes that it wouldn't need approval but should
check with Bob.
060913 Still need to talk to Bob.
060920 No news.
060927 Nothing yet.
