sPHENIX discussion of software

[pinkenburg <pinkenburg AT bnl.gov>]

Hi folks,

the latest G4 version (10.02) requires a less ancient compiler than the 
4.4.7 version which is the default on our SL6 rcf machines. We have gcc 
4.8.2 installed as optional compiler and I tweaked our code to compile 
with it. No big changes but it is more picky when it comes to flagging 
questionable constructs.

I also upgraded most of our packages using this compiler (root 5.34.34, 
gsl 2.1, boost 1.60, CGAL 4.7, fastjet 3.1.1, eigen 3.2.7, pythia 
8.2.12, geant4 10.02) which also keeps the default 4.4.7 nicely 
separated. I added this in parallel to our nightly rebuild. The old 
version is still the default when sourcing the sphenix_setup.csh script. 
The 4.8.2 version is available by

source /opt/sphenix/core/bin/sphenix_setup.csh -n play
set path (/opt/gcc/4.8.2/bin $path)

Currently the path to the new compiler has to be added by hand. Please 
give this new version a try, I would like to switch to this as soon as 
possible (so we can finally use some c++11 constructs which are not 
supported by 4.4.7).

Our standard Fun4All_G4_sPHENIX.C and Fun4All_G4_fsPHENIX.C macros work 
and produce output.

Chris

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Christopher H. Pinkenburg       ;    pinkenburg AT bnl.gov
                                ;    http://www.phenix.bnl.gov/~pinkenbu

Brookhaven National Laboratory  ;    phone: (631) 344-5692
Physics Department Bldg 510 C   ;    fax:   (631) 344-3253
Upton, NY 11973-5000

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