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Migration to SL5

Migration to SL5. James Bellinger University of Wisconsin at Madison 21-Apr-2010. 21-Apr-2010. 1. Milestone. Migration to SL5. Announced releases 6.1.6.m, 6.1.4mc.m, and 6.1.4.m last week Minor glitches but everything seems to be there Some packages (JointPhysics) still needed fiddling

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Migration to SL5

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  1. Migration to SL5 James Bellinger University of Wisconsin at Madison 21-Apr-2010 21-Apr-2010 1

  2. Milestone Migration to SL5 • Announced releases 6.1.6.m, 6.1.4mc.m, and 6.1.4.m last week • Minor glitches but everything seems to be there • Some packages (JointPhysics) still needed fiddling • Well done

  3. What’s Next? • development • Not an ordinary release • No validation: packaging and compilation only • Which external packages should be default? • 7.0.1 • Validation required • Uses root v5_14_00g –q GCC_3_4_3 • Event display gripes but works • Are root files interoperable with old version? • Something is screwed up with the distribution • New release

  4. development • Need to be able to compile/link everything • Not sure we need to have binaries distributed • Not going to be many customers for pulling a development distribution in the first place • Leave development-lite structure alone?

  5. 7.0.1.m Validation • 10K test OK for verifying code • We already verified the system libraries • Verifying new root may need more effort: not a simple matrix • Write 616/SL3 • read 701/SL5 and rewrite and compare • Re-read 616/SL3 and rewrite and compare • Re-read 701/SL4 and compare • Trying to find out what was already done • Murat says they’ve been running successfully, doesn’t remember validation procedures

  6. New Release Desirable • Reprocessing may be in the cards • Claim of 60% more top with modified b-tagging! • Safe to bet that new compilers will call errors what are now just warnings • Extensive minor changes needed, probably not automatable. • Unified Production/MC/ntuple release makes maintenance easier • Probably 7.0.1 follow-on is better than 6.1.7

  7. What next? Offloading products? • The less we support, the better? • Can we use native • python? • perl? • need to maintain oracle interface, so probably not • dddebugger? • gtools? • bison and f2c don’t seem to bundle with SL5, rest do • gsl? • http://www.hep.wisc.edu/~jnb/cdfcode/current/ExternalProducts.xls

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