[Rivet] seg fault in rivet-bootstrap-lcg in lxplus install

[Raghav Kunnawalkam Elayavalli]

just to make clear, i didnt have any PYTHONPATH set before i did this and the only other LD_LIBRARY_PATH was pointing to my MC generator path.

Cheers
Raghav
On Aug 3, 2016, at 11:32 AM, Raghav Kunnawalkam Elayavalli <raghav.k.e at cern.ch<mailto:raghav.k.e at cern.ch>> wrote:

Hi Holger,

I also tried this morning with the same seg fault

kunnawa:~ raghav$ cern
Password:
Last login: Tue Jun 21 08:56:17 2016 from kunnawa.dyndns.cern.ch<http://kunnawa.dyndns.cern.ch/>
* ********************************************************************
* Welcome to lxplus105.cern.ch<http://lxplus105.cern.ch/>, SLC, 6.8
* Archive of news is available in /etc/motd-archive
* Reminder: You have agreed to comply with the CERN computing rules
* https://cern.ch/ComputingRules
* Puppet environment: production, Roger state: production
* Foreman hostgroup: bi/inter/plus/login
* LXPLUS Public Login Service
* ********************************************************************
-bash: /afs/cern.ch/cms/sw/cmsset_default.sh:<http://cern.ch/cms/sw/cmsset_default.sh:> No such file or directory
OK
===> Mountpoint   : /afs/cern.ch/user/r/rkunnawa/eos<http://cern.ch/user/r/rkunnawa/eos>
===> Fuse-Options : kernel_cache,attr_timeout=30,entry_timeout=30,max_readahead=131072,max_write=4194304,fsname=eosuser.cern.ch<http://eosuser.cern.ch/> root://eosuser.cern.ch//eos/
===> xrootd ra             : 131072
===> xrootd cache          : 393216
===> fuse debug            : 0
===> fuse write-cache      : 1
===> fuse write-cache-size : 100000000
[rkunnawa at lxplus105 ~]$ work
[rkunnawa at lxplus105 rkunnawa]$ mkdir RIVET_test
[rkunnawa at lxplus105 rkunnawa]$ cd RIVET_test/
[rkunnawa at lxplus105 RIVET_test]$ ls
[rkunnawa at lxplus105 RIVET_test]$ source /afs/cern.ch/sw/lcg/releases/LCG_84/Python/2.7.10/x86_64-slc6-gcc48-opt/Python-env.sh<http://cern.ch/sw/lcg/releases/LCG_84/Python/2.7.10/x86_64-slc6-gcc48-opt/Python-env.sh>
[rkunnawa at lxplus105 RIVET_test]$ source /afs/cern.ch/sw/lcg/releases/LCG_84/MCGenerators/rivet/2.5.0/x86_64-slc6-gcc48-opt/rivetenv.sh<http://cern.ch/sw/lcg/releases/LCG_84/MCGenerators/rivet/2.5.0/x86_64-slc6-gcc48-opt/rivetenv.sh>
[rkunnawa at lxplus105 RIVET_test]$ which rivet
/afs/cern.ch/sw/lcg/releases/MCGenerators/rivet/2.5.0-1aa46/x86_64-slc6-gcc48-opt/bin/rivet<http://cern.ch/sw/lcg/releases/MCGenerators/rivet/2.5.0-1aa46/x86_64-slc6-gcc48-opt/bin/rivet>
[rkunnawa at lxplus105 RIVET_test]$ rivet --list-analyses
Segmentation fault

Cheers
Raghav Kunnawalkam Elayavalli
PhD Candiate
Rutgers University
http://physics.rutgers.edu/~raghav/<http://www.google.com/url?q=http%3A%2F%2Fphysics.rutgers.edu%2F~raghav%2F&sa=D&sntz=1&usg=AFQjCNENvwedEL22DMATPxyb0WMvVEm9Bw>

On Aug 3, 2016, at 11:30 AM, Holger Schulz <holger.schulz at durham.ac.uk<mailto:holger.schulz at durham.ac.uk>> wrote:

Hi Raghav,

we recently held a Rivet tutorial at CERN using prebuilt rivet2.5 from LCG:

source /afs/cern.ch/sw/lcg/releases/LCG_84/Python/2.7.10/x86_64-slc6-gcc48-opt/Python-env.sh<http://cern.ch/sw/lcg/releases/LCG_84/Python/2.7.10/x86_64-slc6-gcc48-opt/Python-env.sh>
source /afs/cern.ch/sw/lcg/releases/LCG_84/MCGenerators/rivet/2.5.0/x86_64-slc6-gcc48-opt/rivetenv.sh<http://cern.ch/sw/lcg/releases/LCG_84/MCGenerators/rivet/2.5.0/x86_64-slc6-gcc48-opt/rivetenv.sh>

That worked fine for people from CMS, ATLAS and ALICE. There were a couple of people who had
to pruge their bashrc becaus of conflicting PYTHONPATH, LD_LIBRARY_PATH things that
typically had to do with experiment specific setups of python.

Why don't you give that a try first?

Thanks,
Holger


On 03/08/16 10:23, Andy Buckley wrote:
Hi Raghav,

This is very strange. I just tried the 2.5.0 version of rivet-bootstrap-lcg and it worked fine, giving me a functioning setup. At least it could list analyses without segfaulting.

It's possible that I've got something set by default in my shell environment that helps me, but by default on lxplus I get the same gcc 4.4 and Python 2.6 as you do. Maybe someone else could try to reproduce your problem.

I've just updated the LCG bootstrap script to use LCG_85, a newer GCC and FastJet, etc. This also works for me. Maybe you'd have more luck with that?

To use the normal bootstrap on lxplus and other SL6 systems with an old system compiler you need to set up your environment to use a newer compiler and a version of Python compiled with the same. The LCG bootstrap does this automatically and puts the relevant lines into the env.sh script. From my updated LCG_85 build, the relevant lines are these:

source /cvmfs/sft.cern.ch/lcg/releases/LCG_85/gcc/4.9.3/x86_64-slc6/setup.sh<http://sft.cern.ch/lcg/releases/LCG_85/gcc/4.9.3/x86_64-slc6/setup.sh>
source /cvmfs/sft.cern.ch/lcg/releases/LCG_85/Python/2.7.10/x86_64-slc6-gcc49-opt/Python-env.sh<http://sft.cern.ch/lcg/releases/LCG_85/Python/2.7.10/x86_64-slc6-gcc49-opt/Python-env.sh>

There are other, fancier ways to do it, but hopefully this will help. It's definitely a good idea to use a newer release than 2.4.1 -- at least 2.4.3, please! We will soon be releasing 2.5.1.

Andy



On 02/08/16 16:23, Raghav Kunnawalkam Elayavalli wrote:
Hi Rivet Experts,

I tried a fresh install of the rivet-bootstrap-lcg out of the box in an
lxplus machine and after i did
$ ./rivet-bootstrap-lcg
[rkunnawa at lxplus016 RIVET]$ source
/afs/cern.ch/work/r/rkunnawa/RIVET/local/env.sh<http://cern.ch/work/r/rkunnawa/RIVET/local/env.sh>
<http://cern.ch/work/r/rkunnawa/RIVET/local/env.sh>
[rkunnawa at lxplus016 RIVET]$ which rivet
/afs/cern.ch/work/r/rkunnawa/RIVET/local/bin/rivet<http://cern.ch/work/r/rkunnawa/RIVET/local/bin/rivet>
<http://cern.ch/work/r/rkunnawa/RIVET/local/bin/rivet>
[rkunnawa at lxplus016 RIVET]$ which python
/cvmfs/sft.cern.ch/lcg/releases/LCG_82/Python/2.7.10/x86_64-slc6-gcc48-opt/bin/python<http://sft.cern.ch/lcg/releases/LCG_82/Python/2.7.10/x86_64-slc6-gcc48-opt/bin/python>
<http://sft.cern.ch/lcg/releases/LCG_82/Python/2.7.10/x86_64-slc6-gcc48-opt/bin/python>
[rkunnawa at lxplus016 RIVET]$ echo $PYTHONPATH
/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/cvmfs/sft.cern.ch/lcg/releases/LCG_82/Python/2.7.10/x86_64-slc6-gcc48-opt/lib/python2.7/site-packages:/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/cvmfs/sft.cern.ch/lcg/releases/LCG_85/Python/2.7.10/x86_64-slc6-gcc49-opt/lib/python2.7/site-packages:<http://cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/cvmfs/sft.cern.ch/lcg/releases/LCG_82/Python/2.7.10/x86_64-slc6-gcc48-opt/lib/python2.7/site-packages:/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/cvmfs/sft.cern.ch/lcg/releases/LCG_85/Python/2.7.10/x86_64-slc6-gcc49-opt/lib/python2.7/site-packages:>
<http://cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/cvmfs/sft.cern.ch/lcg/releases/LCG_82/Python/2.7.10/x86_64-slc6-gcc48-opt/lib/python2.7/site-packages:/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/afs/cern.ch/work/r/rkunnawa/RIVET/local/lib/python2.7/site-packages:/cvmfs/sft.cern.ch/lcg/releases/LCG_85/Python/2.7.10/x86_64-slc6-gcc49-opt/lib/python2.7/site-packages:>
[rkunnawa at lxplus016 RIVET]$ rivet --list-analyses
Segmentation fault
[rkunnawa at lxplus016 RIVET]$

I tried this with LCG_82 and LCG_85 (with appropriately changing the
other locations) and i get the same issues. any ideas whats happening?

I also tried to install rivet with the normal bootstrap and i got an
issue with yoda installation since the default gcc in lxplus is 4.4 and
it doesnt support C++11. so any ideas how i can over come that issue? I
would really like to use something like the herwig bootstrap which
installs all the necessary items.

In the meanwhile should i try to install an older version of rivet? one
that doesnt need c++11?
Again, the whole reason why im using this is so that i can run my rivet
analysis on the lxplus batch system since at the moment (my earlier lcg
installation) doesnt work and gives me weird python errors which even
the cern service desk is having a hard time with.

Cheers
Raghav Kunnawalkam Elayavalli
PhD Candiate
Rutgers University
http://physics.rutgers.edu/~raghav/
<http://www.google.com/url?q=http%3A%2F%2Fphysics.rutgers.edu%2F~raghav%2F&sa=D&sntz=1&usg=AFQjCNENvwedEL22DMATPxyb0WMvVEm9Bw>



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