Librarian and Integrators meeting (17 Jan 2012)

Attendees:
Marco Clemencic, Giulio Eulisse (phone), Emil Obreshkov, Bertrand Bellenot, Ben Couturier,
Andrea Valassi (phone), Raffaello Trentadue (phone), Victor Diez Gonzalez, Gunter Folger, Benedikt Hegner

Announcements:
None

New action items:
Fix 32bit/64 bit problem in xrootd on Mac <-- action Benedikt
Since LCG 62 is out, move dev slot to HEAD of everything again <-- action Benedikt
Rediscuss ATLAS need for dev2 slot (i.e. LCG 60) next LIM <-- action Emil, Benedikt
Add icc as platform to LCG_62 cycle <-- action Benedikt, Victor

Previous action items:
prepare for LCG 63 (python2.7) <-- action Benedikt
prepare LCG 62 (with boost 1.48 and ROOT 5.32; new platform gcc46) <-- action Benedikt (done)
remove LCG 59 slot from nightlies <-- action Victor (done)
set up C++11 in nightly slot 'gccmax' <-- action Benedikt


Discussion on LCG 62/63 release and platforms:
==============================================

LHCb and ATLAS will not put Python 2.7 in production this year, so this will not enter mail development line for a while. A special slot will be set up containing Python 2.7.
The order of priority for platforms to finish are: slc6/gcc46, icc11, clang, MacOS X Lion.
32 bit on slc6 could be needed depending on when the slc5 to slc6 switch will take place. Will go for 64 bit only for now and re-discuss once the slc6 migration timescales are more clear.

Round table:
============

SPI:
----
LCG 62 was announced in Dec and got a patch release soon after.
icc licenses are now resolved; adding icc to the standard again.


ATLAS:
------
ATLAS built 17.5.0 with LCG 62a; validation to start this week.
Reports stability problems with the slc6 nightly builds of LCG.
New CMT version available, which they want to pick up.


CMS:
----
5.32.00 ROOT tested with CMSSW_5_0_0. Problem with mem alloc for dictionaries. fix by Axel. is now in ROOT patch.
New CORAL 2.32.


ROOT:
-----
Created 5.30.06 with changes listed in http://root.cern.ch/drupal/content/root-version-v5-30-00-patch-release-notes


PF:
---
Working on new version of packages which will contain an API extension. Once ready, a new major LCG release would be useful.


LHCb:
-----
Ben Couturier joined as replacement for Hubert Degaudenzi.
No interest in new CMT version as it does not improve the setup time. 
After internal discussion in LHCb, Python 2.7 won't be used in production for this year. Request to stay with Python 2.6 and have dedicated Python 2.7 slot
Tested the remote desktop capabilities of Lion. Lion VNC allows multiple users to work concurrently.


GEANT4:
-------
no news.