[Rivet] Sherpa fails to run on batch system

[Andy Buckley]

Hendrik Hoeth wrote:
> Hi Holger,
> 
> I don't know what's in your batch jobs scripts or in your .zshrc, so
> it's hard to figure out what the problem might be.
> 
> But I thought your installation was stand-alone and not looking for any
> libs in /afs/cern.ch/ ? So these lines here look strange:
> 
>> AGILe.Loader: TRACE  Testing for 
>> /afs/cern.ch/sw/lcg/external/MCGenerators/lhapdf/5.4.0/slc5_amd64_gcc41/lib/libLHAPDF.so
>> AGILe.Loader: TRACE  Testing for 
>> /afs/cern.ch/sw/lcg/external/MCGenerators/lhapdf/5.4.0.2/lib/libLHAPDF.so
>> AGILe.Loader: TRACE  Testing for 
>> /afs/cern.ch/sw/lcg/external/MCGenerators/lhapdf/5.4.0/lib/libLHAPDF.so

This is a hidden evil in AGILe --- to make it work as "out of the box"
as possible, the Genser AFS path is hard-coded as a fallback entry for
all generators (and LHAPDF, becauso of how Genser package it).

If you want to not use this fallback, then set the environment variable
AGILE_USE_AFS=no (this can be useful on systems where the AFS access is
slow or broken)

> I'm running Sherpa without any problems in Wuppertal. Here is one of my
> scripts, and I don't set any other environment variables. Rivet is
> installed in /griddata/gridsoft/local/hendrik/installation/local/.

I also avoid setting a significant amount of environment in my batch
jobs. Apart from AGILE_GEN_PATH and AGILE_USE_AFS (and system vars like
PATH, LD_LIBRARY_PATH...), rivetgun/agile should be completely
environment-independent.

Andy