Minutes SB 51, December 9th 2008 v.1.0

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Participants: M.Asai, H.Kurasige, P.Gumplinger, G.Cosmo, G.Folger,

S.Banijeree, V.Ivantchenko (until 9:30), J.Apostolakis, M.Verderi,

G.Cuttone, D.Wright, S.Incerti, J.Perl, T.Sasaki.


Minutes: G.Cosmo (9-DEC-2008)


Actions

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41.2 - no news

42.3 - no news

44.1 - not yet discussed; people from space community willing to donate data

in G4NDL format.

44.2 - no news

44.3 - contacted but no news... closed

44.4 - Done. Close

45.2 - No news

46.1 - Done. Closed

46.3 - Not done yet.

47.1 - No news

47.3 - 66% done, one at 80% to be closed.

48.3 - Coupled to the US-Geant4 funding proposal. To be closed.

48.4 - Done, added to future plans for hadronics. Closed.

48.5 - Done. Closed.

49.1 - Resolved. Closed.

49.2 - Done. Closed.

49.3 - List of items ready, not clear for the fundings (more clear as of April 2009)

49.4 - Exists but not yet available from the pages

49.5 - Not done yet, planning for release 9.2.


Delta Review

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John resumes the discussion done in the preparation meeting (impossible to

summarise it here, JA has the summary...). All agree in silence.

- First draft of "join-EM" web page

- Rec.3 (tradeoff between physics accuracy and speed): missing a benchmark for

EM low-energy.

- Rec.4 (guidance on choice of EM models): ...

- Rec.5 (single EM package): a lot of progress ...

- Rec.6 (Fluka interface): contacted Fluka people, no change from their side. ILC

seems to have given up on their request, too difficult and no manpower...

G.Cuttone proposes to discuss with Fluka people (ACTION-1).

- Rec.7 (plans, improvement to hadronics): ...

- Rec.8 (simple hadronic benchmarks): give a comprehensive view of what we

have already for hadronics in the existing testing suite. Make it available from

the web (ACTION-2).

- Rec.9

- Rec.10

- Rec.11

- Rec.12 (performance optimization guide): two presentations exist. No physics or

too scattered information. Start to put together a Twiki page which summarises

everything, with a plan for having in the official documentation by May 2009.

(ACTION-3)

- Rec.13 (turning off irrelevant processes):...

- Rec.14 (guidance on variance reduction techniques): resource limited, could put

together a simple page of information, eventually link it to the performance Twiki:

importance biasing, cross-section biasing, leading-particle biasing, ...

JA volunteer to summarise the different techniques existing starting from Alex

Howard presentation at Hebden-Bridge. (ACTION-4)

- Rec.15 (systematic tracking of code performance): ACTION-5 - identify responsible

in each Category for running benchmarks and provide progress every other

month.

- Rec.16

- Rec.17 (plans for performance): ...

- Rec.18

- Rec.19 (benchmarking against other MC codes): systematically ? Perhaps it make

sense to compare to other MCs where there is no data available...

- Rec.20

- Rec.21

- Rec.23 (web update): JA take over responsibility for this (no longer Katsuya).

There has been improvements. Should avoid duplication. Up-to-date publications

lists made available in WG pages should be linked from a single source.

- Rec.24 (documenting limitation of physics models): ...

- Rec.25 (code documentation, LXR): LXR is OK. SRM will be kept as mean for

commenting code and define a policy. In addition we should add a link to the

existing Doxygen docs.

- Rec.26 (Release notes): progress made.

- Rec.27 (Installation, RPM): ...

- Rec.28 (Wiki): ...

- Rec.29 (user-driven physics lists): some examples in the past of commitment

taken by the Collaboration can be used as response for a positive answer on a

case-by-case approach, based on resources to be found for maintenance.

JA takes this on board.

- Rec.30 (man power consistent with plans): ...

- Rec.31 (additional man power): ...


Release 9.2

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- Bug in G4SteppingManager proposed by Makoto for release 9.2.

- Livermore-based extensions are not included in release 9.2, delayed by

developers, eventually available in the first half of 2009.


Plans for 2009 and beyond

------------------------------------

- ACTION-6 (JA): Organise phone meeting (10-12 January) to discuss proposals.

- Identify required man power for long-term planning in order to address major

development items.

- Need to understand shortly how to prepare the long-term plans, web pages

are preferred.


Meeting closed at 11:00.

Meeting Date