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Minutes of the LIM meeting, Oct 14, 2004

Present: Florence Ranjard (LHCb), Shahzad Muzaffar (CMS), Eric Poinsignon (SPI), Emil Obreshkov (ATLAS), David Quarrie (ATLAS), Andreas Pfeiffer (SPI)

After a short introduction into the scope of the meeting it was agreed to have this meeting every two weeks in the same time-slot (2nd and 4th Thursday of the month, 11:00 - 12:00). Andreas will try to book a room (32-S-C22 if possible) for the next meetings.

The following issues were discussed/brought up:

- gcc 3.2.3 compiler on SLC3. Andreas summarized the status of the problems as seen by POOL: the compiler from RedHat is a patched version of 3.2.3 which has some back-ports from more recent releases in. This breaks the run-time type-info system (a C function called "i" and the type "int" cannot be distinguished). A patch has been applied to the SLC3 version, so certification can continue, but there is no compatibility any longer with the "plain" RedHat version (important for binary distributions !)

Open questions:

* 1) is there a way to distinguish the compiler patches to see if it's the broken version or not ?

* 2) do we need to recompile external packages and/or projects, if so, which ones ?

- the _dbg versions for SLC3 of the projects are missing (the compiler issue stopped work on SLC3). To be built.

- PI 1.2.3 is missing for rh73_gcc32 (needed by Atlas until June '05 for the external institutes).

- Atlas would like to have a plan for releases on Mac.

- CMS would like to add some packages to the externals. Shahzad will send a list of proposed packages to the LIM list.

- LHCb and Atlas are planning to move to SLC3 as the main dev platform on a timescale of 1-3 weeks (LHCb) to before Xmas (Atlas)

- Atlas will need rh73_gcc32 support for external institutes until June '05

- Atlas will move to use of the root4 based projects after their main s/w meeting end of October, keeping the root3 based version on a bugfix branch

-- Main.pfeiffer - 24 Nov 2004

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Topic revision: r3 - 2005-06-07 - AlbertoAimar
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